Changeset 8049 in ntrip


Ignore:
Timestamp:
Sep 27, 2016, 8:10:18 PM (9 years ago)
Author:
stuerze
Message:

restoration of BNC's help contents

File:
1 edited

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Removed

  • trunk/BNC/src/bnchelp.html

    r8048 r8049  
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    4 
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    8     <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    9    
    10     <title>BNC 2.13 documentation</title>
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    35   <body role="document">
    36     <div class="related" role="navigation" aria-label="related navigation">
    37       <h3>Navigation</h3>
    38       <ul>
    39         <li class="nav-item nav-item-0"><a href="bnchelp.html#document-bnchelp">BNC 2.13 documentation</a> &#187;</li>
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    45               <img class="logo" src="_static/bnc_logo.png" alt="Logo"/>
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    47   <h3><a href="bnchelp.html#document-bnchelp">Table Of Contents</a></h3>
    48   <p class="caption"><span class="caption-text">Table of Contents</span></p>
    49 <ul>
    50 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-abbreviations">Abbreviations</a></li>
    51 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-chapter1">Introduction</a><ul>
    52 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#purpose">Purpose</a></li>
    53 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#authors">Authors</a></li>
    54 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#documentation">Documentation</a></li>
    55 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#contact">Contact</a></li>
    56 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#acknowledgements">Acknowledgements</a></li>
    57 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#looking-back">Looking Back</a></li>
    58 </ul>
     1<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
     2<p><img src="IMG/screenshot43.png"/></p>
     3
     4<h3>BKG Ntrip Client (BNC)<br>
     5Version 2.12.0</h3>
     6
     7<p>
     8Georg Weber<sup>(1)</sup>, Leo&scaron; Mervart<sup>(2)</sup>, Andrea St&uuml;rze<sup>(1)</sup>, Axel R&uuml;lke<sup>(1)</sup>, Dirk St&ouml;cker<sup>(3)</sup>
     9<p>
     10<sup>(1) Federal Agency for Cartography and Geodesy (BKG), Frankfurt, Germany</sup><br>
     11<sup>(2) Czech Technical University (CTU), Department of Geomatics, Prague, Czech Republic</sup><br>
     12<sup>(3) Alberding GmbH, Wildau, Germany</sup>
     13<br><br>
     14<b>Copyright</b><br>
     15&copy;<sup>&nbsp;</sup> 2005-2016 Federal Agency for Cartography and Geodesy (BKG), Frankfurt, Germany
     16<br><br>
     17ISSN 1436-3445<br>
     18ISBN 978-3-86482-083-0<br><br>
     19<b>Citation<sup>&nbsp;</sup></b><br>
     20To help justify funding the development of BNC,<sup>&nbsp;</sup>we kindly ask users to include a citation when applying the software results in a publication. We suggest:
     21<br><br>
     22Weber, G., L. Mervart, A. St&uuml;rze, A. R&uuml;lke and D. St&ouml;cker (2016):<br>
     23&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; BKG Ntrip Client, Version 2.12. Mitteilungen des Bundesamtes<br>
     24&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; f&uuml;r Kartographie und Geod&auml;sie, Vol. 49, Frankfurt am Main, 2016.
     25<br><br>
     26
     27<b>Table of <a name="contents">Contents</b><br><br>
     28<b>1.</b> <a href=#genInstruction><b>General Information</b></a><br><br>
     29&nbsp; &nbsp; &nbsp; 1.1 <a href=#introPurpose>Purpose</a><br>
     30&nbsp; &nbsp; &nbsp; 1.2 <a href=#introSystem>Supported GNSS</a><br>
     31&nbsp; &nbsp; &nbsp; 1.3 <a href=#introFlow>Data Flow</a><br>
     32&nbsp; &nbsp; &nbsp; 1.4 <a href=#introHandling>Handling</a><br>
     33&nbsp; &nbsp; &nbsp; 1.5 <a href=#introInst>Installation</a><br>
     34&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1.5.1 <a href=#introCompile>Compilation</a><br>
     35&nbsp; &nbsp; &nbsp; 1.6 <a href=#introConf>Configuration</a><br>
     36&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 1.6.1 <a href=#introExamples>Examples</a><br>
     37&nbsp; &nbsp; &nbsp; 1.7 <a href=#introLimit>Limitations</a><br>
     38&nbsp; &nbsp; &nbsp; 1.8 <a href=#introLBack>Looking Back</a><br><br>
     39<b>2.</b> <a href=#optsettings><b>Settings Details</b></a><br><br>
     40&nbsp; &nbsp; &nbsp; 2.1 <a href=#topmenu><b>Top Menu Bar</b></a><br>
     41&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.1.1 <a href=#file>File</a><br>
     42&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.1.2 <a href=#help>Help</a><br>
     43&nbsp; &nbsp; &nbsp; 2.2 <a href=#network><b>Network</b></a><br>
     44&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.2.1 <a href=#proxy>Proxy</a><br>
     45&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.2.2 <a href=#ssl>SSL</a><br>
     46&nbsp; &nbsp; &nbsp; 2.3 <a href=#general><b>General</b></a><br>
     47&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.3.1 <a href=#genlog>Logfile</a><br>
     48&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.3.2 <a href=#genapp>Append Files</a><br>
     49&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.3.3 <a href=#genconf>Reread Configuration</a><br>
     50&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.3.4 <a href=#genstart>Auto Start</a><br>
     51&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.3.5 <a href=#rawout>Raw Output File</a><br>
     52&nbsp; &nbsp; &nbsp; 2.4 <a href=#rinex><b>RINEX Observations</b></a><br>
     53&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.1 <a href=#rnxname>Filenames</a><br>
     54&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.2 <a href=#rnxdir>Directory</a><br>
     55&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.3 <a href=#rnxinterval>File Interval</a><br>
     56&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.4 <a href=#rnxsample>Sampling</a><br>
     57&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.5 <a href=#rnxskl>Skeleton Extension</a><br>
     58&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.6 <a href=#sklMandat>Skeleton Mandatory</a><br>
     59&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.7 <a href=#rnxscript>Script</a><br>
     60&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.8 <a href=#rnxvers2>Version 2</a><br>
     61&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.9 <a href=#rnxvers3>Version 3</a><br>
     62&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.4.10 <a href=#rnxvers3File>Version 3 Filenames</a><br>
     63&nbsp; &nbsp; &nbsp; 2.5 <a href=#ephemeris><b>RINEX Ephemeris</b></a><br>
     64&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.5.1 <a href=#ephdir>Directory</a><br>
     65&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.5.2 <a href=#ephint>Interval</a><br>
     66&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.5.3 <a href=#ephport>Port</a><br>
     67&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.5.4 <a href=#ephvers>Version</a><br>
     68&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.5.5 <a href=#ephversFile>Version 3 Filenames</a><br>
     69&nbsp; &nbsp; &nbsp; 2.6 <a href=#reqc><b>RINEX Editing & QC</b></a><br>
     70&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.1 <a href=#reqcact>Action</a><br>
     71&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.2 <a href=#reqcinp>Input Files</a><br>
     72&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.3 <a href=#reqcout>Output Files</a><br>
     73&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.4 <a href=#reqclog>Logfiles</a><br>
     74&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.5 <a href=#reqcplots>Plots for Signals</a><br>
     75&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.6 <a href=#reqcdir>Directory for Plots</a><br>
     76&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.7 <a href=#reqcedit>Set Edit Options</a><br>
     77&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.6.8 <a href=#reqccommand>Command Line, No Window</a><br>
     78&nbsp; &nbsp; &nbsp; 2.7 <a href=#sp3comp><b>SP3 Comparison</b></a><br>
     79&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.7.1 <a href=#sp3input>Input SP3 Files</a><br>
     80&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.7.2 <a href=#sp3exclude>Exclude Satellites</a><br>
     81&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.7.3 <a href=#sp3log>Logfile</a><br>
     82&nbsp; &nbsp; &nbsp; 2.8 <a href=#correct><b>Broadcast Corrections</b></a><br>
     83&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.8.1 <a href=#corrdir>Directory, ASCII</a><br>
     84&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.8.2 <a href=#corrint>Interval</a><br>
     85&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.8.3 <a href=#corrport>Port</a><br>
     86&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.8.4 <a href=#corrwait>Wait for Full Corr Epoch</a><br>
     87&nbsp; &nbsp; &nbsp; 2.9 <a href=#syncout><b>Feed Engine</b></a><br>
     88&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.9.1 <a href=#syncport>Port</a><br>
     89&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.9.2 <a href=#syncwait>Wait for Full Obs Epoch</a><br>
     90&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.9.3 <a href=#syncsample>Sampling</a><br>
     91&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.9.4 <a href=#syncfile>File</a><br>
     92&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.9.5 <a href=#syncuport>Port (unsynchronized)</a><br>
     93&nbsp; &nbsp; &nbsp; 2.10 <a href=#serial><b>Serial Output</b></a><br>
     94&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.1 <a href=#sermount>Mountpoint</a><br>
     95&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.2 <a href=#serport>Port Name</a><br>
     96&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.3 <a href=#serbaud>Baud Rate</a><br>
     97&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.4 <a href=#serflow>Flow Control</a><br>
     98&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.5 <a href=#serparity>Parity</a><br>
     99&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.6 <a href=#serdata>Data Bits</a><br>
     100&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.7 <a href=#serstop>Stop Bits</a><br>
     101&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.8 <a href=#serauto>NMEA</a><br>
     102&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.9 <a href=#serfile>File</a><br>
     103&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.10 <a href=#serheight>Height</a><br>
     104&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.10.11 <a href=#sersampl>Sampling</a><br>
     105&nbsp; &nbsp; &nbsp; 2.11 <a href=#advnote><b>Outages</b></a><br>
     106&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.11.1. <a href=#obsrate>Observation Rate</a><br>
     107&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.11.2. <a href=#advfail>Failure Threshold</a><br>
     108&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.11.3. <a href=#advreco>Recovery Threshold</a><br>
     109&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.11.4. <a href=#advscript>Script</a><br>
     110&nbsp; &nbsp; &nbsp; 2.12 <a href=#misc><b>Miscellaneous</b></a><br>
     111&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.12.1. <a href=#miscmount>Mountpoint</a><br>
     112&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.12.2. <a href=#miscperf>Log Latency</a><br>
     113&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.12.3. <a href=#miscscan>Scan RTCM</a><br>
     114&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.12.4. <a href=#miscport>Port</a><br>
     115&nbsp; &nbsp; &nbsp; 2.13 <a href=#pppclient><b>PPP Client</b></a><br>
     116&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1 <a href=#pppInp><b>PPP (1): Input and Output</b></a><br>
     117&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.1 <a href=#pppdatasource>Data Source</a><br>
     118&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.2 <a href=#ppprnxobs>RINEX Observation File</a><br>
     119&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.3 <a href=#ppprnxnav>RINEX Navigation File</a><br>
     120&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.4 <a href=#pppcorrstream>Corrections Stream</a><br>
     121&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.5 <a href=#pppcorrfile>Corrections File</a><br>
     122&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.6 <a href=#pppantexfile>ANTEX File</a><br>
     123&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.7 <a href=#pppmarkcoor>Coordinates File</a><br>
     124&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.8 <a href=#pppv3filename>Version 3 Filenames</a><br>
     125&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.9 <a href=#ppplogfile>Logfile Directory</a><br>
     126&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.10 <a href=#pppnmeafile>NMEA Directory</a><br>
     127&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.11 <a href=#pppsnxtrofile>SNX TRO Directory</a><br>
     128&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.11.1 <a href=#pppsnxtrointr>Interval</a><br>
     129&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.11.2 <a href=#pppsnxtrosampl>Sampling</a><br>
     130&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.11.3 <a href=#pppsnxAc>Analysis Center</a><br>
     131&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.1.11.4 <a href=#pppsnxSol>Solution ID</a><br>
     132
     133&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2 <a href=#pppStation><b>PPP (2): Processed Stations</b></a><br>
     134&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.1 <a href=#pppsite>Station</a><br>
     135&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.2 <a href=#pppnehsigma>Sigma North/East/Up</a><br>
     136&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.3 <a href=#pppnehnoise>Noise North/East/Up</a><br>
     137&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.4 <a href=#ppptropsigma>Tropo Sigma</a><br>
     138&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.5 <a href=#ppptropnoise>Tropo Noise</a><br>
     139&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.2.6 <a href=#pppnmeaport>NMEA Port</a><br>
     140&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3 <a href=#pppOptions><b>PPP (3): Processing Options</b></a><br>
     141&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.1 <a href=#ppplinecombi>Linear Combinations</a><br>
     142&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.2 <a href=#pppcodeobs>Code Observations</a><br>
     143&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.3 <a href=#pppphaseobs>Phase Observations</a><br>
     144&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.4 <a href=#pppeleweight>Elevation Dependent Weighting</a><br>
     145&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.5 <a href=#pppminobs>Minimum Number of Observations</a><br>
     146&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.6 <a href=#pppmineleva>Minimum Elevation</a><br>
     147&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.7 <a href=#pppwaitclockcorr>Wait for Clock Corrections</a><br>
     148&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.3.8 <a href=#pppseeding>Seeding</a><br>
     149&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4 <a href=#pppPlots><b>PPP (4): Plots</b></a><br>
     150&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.1 <a href=#ppptimeseries>PPP Plot</a><br>
     151&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.2 <a href=#pppaudioresp>Audio Response</a><br>
     152&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.3 <a href=#ppptrackmap>Track Map</a><br>
     153&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.3.1 <a href=#pppmaptype>Google/OSM</a><br>
     154&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.4 <a href=#pppdotprop>Dot-properties</a><br>
     155&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.4.1 <a href=#pppdotsize>Size</a><br>
     156&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.4.2 <a href=#pppdotcolor>Color</a><br>
     157&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.13.4.5 <a href=#pppspeed>Post Processing Speed</a><br>
     158&nbsp; &nbsp; &nbsp; 2.14 <a href=#combi><b>Combine Corrections</b></a><br>
     159&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1 <a href=#combimounttab>Combine Corrections Table</a><br>
     160&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1.1 <a href=#combiadd>Add Row, Delete</a><br>
     161&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1.2 <a href=#combimethod>Method</a><br>
     162&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1.3 <a href=#combimax>Maximal Residuum</a><br>
     163&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1.4 <a href=#combismpl>Sampling</a><br>
     164&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.14.1.5 <a href=#combiGLO>Use GLONASS</a><br>
     165&nbsp; &nbsp; &nbsp; 2.15 <a href=#upclk><b>Upload Corrections</b></a><br>
     166&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.1 <a href=#upadd>Add, Delete Row</a><br>
     167&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.2 <a href=#uphost>Host, Port, Mountpoint, Password</a><br>
     168&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.3 <a href=#upsystem>System</a><br>
     169&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.4 <a href=#upcom>Center of Mass</a><br>
     170&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.5 <a href=#upsp3>SP3 File</a><br>
     171&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.6 <a href=#uprinex>RNX File</a><br>
     172&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.7 <a href=#pidsidiod>PID, SID, IOD</a><br>
     173
     174&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.8 <a href=#upinter>Interval</a><br>
     175&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.9 <a href=#upclksmpl>Sampling</a><br>
     176&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.9.1 <a href=#upclkorb>Orbits</a><br>
     177&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.9.2 <a href=#upclksp3>SP3</a><br>
     178&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.9.3 <a href=#upclkrnx>RINEX</a><br>
     179&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.10 <a href=#upcustom>Custom Trafo</a><br>
     180&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.15.11 <a href=#upantex>ANTEX File</a><br>
     181&nbsp; &nbsp; &nbsp; 2.16 <a href=#upeph><b>Upload Ephemeris</b></a><br>
     182&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.16.1 <a href=#brdcserver>Host &amp; Port</a><br>
     183&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.16.2 <a href=#brdcmount>Mountpoint &amp; Password</a><br>
     184&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.16.3 <a href=#brdcsmpl>Sampling</a><br>
     185&nbsp; &nbsp; &nbsp; 2.17 <a href=#streams><b>Streams Canvas</b></a><br>
     186&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.17.1 <a href=#streamedit>Edit Streams</a><br>
     187&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.17.2 <a href=#streamdelete>Delete Stream</a><br>
     188&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.17.3 <a href=#streamconf>Reconfigure Stream Selection On-the-fly</a><br>
     189&nbsp; &nbsp; &nbsp; 2.18 <a href=#logs><b>Logging Canvas</b></a><br>
     190&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.18.1 <a href=#logfile>Log</a><br>
     191&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.18.2 <a href=#throughput>Throughput</a><br>
     192&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.18.3 <a href=#latency>Latency</a><br>
     193&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.18.4 <a href=#ppptab>PPP Plot</a><br>
     194&nbsp; &nbsp; &nbsp; 2.19 <a href=#bottom><b>Bottom Menu Bar</b></a><br>
     195&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1 <a href=#streamadd>Add Stream</a><br>
     196&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1 <a href=#streamcaster>Add Stream - Coming from Caster</a><br>
     197&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.1 <a href=#streamhost>Caster Host and Port</a><br>
     198&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.2 <a href=#streamtable>Casters Table</a><br>
     199&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.3 <a href=#streamuser>User and Password</a><br>
     200&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.4 <a href=#gettable>Get Table</a><br>
     201&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.5 <a href=#ntripv>Ntrip Version</a><br>
     202&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.1.6 <a href=#castermap>Map</a><br>
     203&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.2 <a href=#streamip>Add Stream - Coming from TCP/IP Port</a><br>
     204&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.3 <a href=#streamudp>Add Stream - Coming from UDP Port</a><br>
     205&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.1.4 <a href=#streamser>Add Stream - Coming from Serial Port</a><br>
     206&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.2 <a href=#streamsdelete>Delete Stream</a><br>
     207&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.3 <a href=#streamsmap>Map</a><br>
     208&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.4 <a href=#start>Start</a><br>
     209&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.5 <a href=#stop>Stop</a><br>
     210&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.19.6 <a href=#contexthelp>Help? = Shift+F1</a><br>
     211&nbsp; &nbsp; &nbsp; 2.20 <a href=#cmd><b>Command Line Options</b></a><br>
     212&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.1 <a href=#cmdVersion>Version</a><br>
     213&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.2 <a href=#cmdDisplay>Display</a><br>
     214&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.3 <a href=#nw>No Window Mode</a><br>
     215&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.4 <a href=#post>File Mode</a><br>
     216&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.5 <a href=#conffile>Configuration File</a><br>
     217&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 2.20.6 <a href=#confopt>Configuration Options</a><br><br>
     218<b>3.</b> <a href=#annex><b>Annex</b></a><br><br>
     219&nbsp; &nbsp; &nbsp; 3.1 <a href=#history>Revision History</a><br>
     220&nbsp; &nbsp; &nbsp; 3.2 <a href=#rtcm>RTCM Standards</a><br>
     221&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.2.1 <a href=#ntrip1>Ntrip Version 1</a><br>
     222&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.2.2 <a href=#ntrip2>Ntrip Version 2</a><br>
     223&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.2.3 <a href=#rtcm2>RTCM Version 2</a><br>
     224&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.2.4 <a href=#rtcm3>RTCM Version 3</a><br>
     225&nbsp; &nbsp; &nbsp; 3.3 <a href=#confList>Command Line Help</a><br>
     226&nbsp; &nbsp; &nbsp; 3.4 <a href=#links>Further Reading</a><br>
     227&nbsp; &nbsp; &nbsp; 3.5 <a href=#abbrev>Abbreviations</a>
     228</p>
     229
     230
     231<p><b>List of Figures</b><br><br>
     232<table>
     233<tr><td><b>Fig.&nbsp;&nbsp;</b></td><td><b>Title</b></td><td><b>Chapter</b></td></tr>
     234<tr><td>1</td><td>Flowchart, BNC connected to a GNSS rover for Precise Point Positioning</b></td><td>1.3</td></tr>
     235<tr><td>2</td><td>Flowchart, BNC converting RTCM streams to RINEX batches</td><td>1.3</td></tr>
     236<tr><td>3</td><td>Flowchart, BNC feeding a real-time GNSS engine and uploading encoded Broadcast Corrections</td><td>1.3</td></tr>
     237<tr><td>4</td><td>Flowchart, BNC combining Broadcast Correction streams</td><td>1.3</td></tr>
     238<tr><td>5</td><td>Sections on BNC's main window</td><td>1.4</td></tr>
     239<tr><td>6</td><td>Management of configuration options in BNC</td><td>1.6</td></tr>
     240<tr><td>7</td><td>BNC's 'Network' panel configured to ignore eventually occurring SSL error messages</td><td>2.2.2</td></tr>
     241<tr><td>8</td><td>BNC translating incoming streams to 15 min RINEX Version 3 files</td><td>2.4</td></tr>
     242<tr><td>9</td><td>BNC converting Broadcast Ephemeris stream to RINEX Version 3 Navigation files</td><td>2.5.5</td></tr>
     243<tr><td>10</td><td>Example for BNC's 'RINEX Editing Options' window</td><td>2.6.7</td></tr>
     244<tr><td>11</td><td>Example for RINEX file concatenation with BNC</td><td>2.6.7</td></tr>
     245<tr><td>12</td><td>Example for creating RINEX quality check analysis graphics output with BNC</td><td>2.6.7</td></tr>
     246<tr><td>13</td><td>Example for satellite availability, elevation and PDOP plots as a result of a RINEX quality check analysis with BNC</td><td>2.6.7</td></tr>
     247<tr><td>14</td><td>Sky plot examples for multipath, part of RINEX quality check analysis with BNC</td><td>2.6.7</td></tr>
     248<tr><td>15</td><td>Sky plot examples for signal-to-noise ratio, part of RINEX quality check analysis with BNC</td><td>2.6.7</td></tr>
     249<tr><td>16</td><td>Example for comparing two SP3 files with satellite orbit and clock data using BNC</td><td>2.7.3</td></tr>
     250<tr><td>17</td><td>Example for pulling, saving and output of Broadcast Corrections using BNC</td><td>2.8.3</td></tr>
     251<tr><td>18</td><td>Synchronized BNC output via IP port to feed a GNSS real-time engine</td><td>2.9</td></tr>
     252<tr><td>19</td><td>Flowcharts, BNC forwarding a stream to a serially connected receiver; sending NMEA sentences is mandatory for VRS streams</td><td>2.10</td></tr>
     253<tr><td>20</td><td>BNC pulling a VRS stream to feed a serially connected RTK rover</td><td>2.10</td></tr>
     254<tr><td>21</td><td>RTCM message numbers, latencies and observation types logged by BNC</td><td>2.12</td></tr>
     255<tr><td>22</td><td>Real-time Precise Point Positioning with BNC, PPP Panel 1</td><td>2.13.1</td></tr>
     256<tr><td>23</td><td>Precise Point Positioning with BNC, PPP Panel 2, using RTKPLOT for visualization</td><td>2.13.2</td></tr>
     257<tr><td>24</td><td>Precise Point Positioning with BNC, PPP Panel 3</td><td>2.13.3</td></tr>
     258<tr><td>25</td><td>Precise Point Positioning with BNC in 'Quick-Start' mode, PPP Panel 4</td><td>2.13.3.8</td></tr>
     259<tr><td>26</td><td>Track of positions from BNC with Google Maps in background</td><td>2.13.4.3</td></tr>
     260<tr><td>27</td><td>Example for background map from Google Maps and OpenStreetMap (OSM) resources</td><td>2.13.4.3.1</td></tr>
     261<tr><td>28</td><td>BNC combining Broadcast Correction streams</td><td>2.14</td></tr>
     262<tr><td>29</td><td>INTERNAL' PPP with BNC using a combination of Broadcast Corrections</td><td>2.14</td></tr>
     263<tr><td>30</td><td>Setting BNC's Custom Transformation Parameters window, example for 'ITRF2008->GDA94'</td><td>2.15.3</td></tr>
     264<tr><td>31</td><td>BNC producing Broadcast Corrections from incoming precise orbits and clocks and uploading them to an Ntrip Broadcaster</td><td>2.15.11</td></tr>
     265<tr><td>32</td><td>BNC uploading a combined Broadcast Correction stream</td><td>2.15.11</td></tr>
     266<tr><td>33</td><td>BNC producing Broadcast Ephemeris stream from globally distributed RTCM streams; upload in RTCM format to an Ntrip Broadcaster</td><td>2.16.3</td></tr>
     267<tr><td>34</td><td>Bandwidth consumption of RTCM streams received by BNC</td><td>2.18.2</td></tr>
     268<tr><td>35</td><td>Latency of RTCM streams received by BNC</td><td>2.18.3</td></tr>
     269<tr><td>36</td><td>Example for time series plot of displacements produced by BNC</td><td>2.18.4</td></tr>
     270<tr><td>37</td><td>Steam input communication links accepted by BNC</td><td>2.19</td></tr>
     271<tr><td>38</td><td>BNC's 'Select Broadcaster' table</td><td>2.19.1.1.2</td></tr>
     272<tr><td>39</td><td>Broadcaster source-table shown by BNC</td><td>2.19.1.1.4</td></tr>
     273<tr><td>40</td><td>Stream distribution map shown by BNC as derived from Ntrip Broadcaster source-table</td><td>2.19.1.1.6</td></tr>
     274<tr><td>41</td><td>BNC configuration for pulling a stream via serial port</td><td>2.19.1.4</td></tr>
     275</table>
     276</p>
     277
     278<p><b>List of Tables</b><br><br>
     279<table>
     280<tr><td><b>Tab.&nbsp;&nbsp;</b></td><td><b>Title</b></td><td><b>Chapter</b></td></tr>
     281<tr><td>1</td><td>Status of RTCM Version 3 message implementations in BNC supporting various GNSS systems</td><td>1.2</td></tr>
     282<tr><td>2</td><td>Contents and format of synchronized output of observations feeding a GNSS engine</td><td>2.9</td></tr>
     283</table>
     284</p>
     285
     286<p><h3>1. <a name="genInstruction">General Information</h3></p>
     287<p>
     288The BKG Ntrip Client (BNC) is a program for simultaneously retrieving, decoding, converting and processing or analyzing real-time GNSS data streams applying the 'Networked Transport of RTCM via Internet Protocol' (Ntrip) standard. It has been developed within the framework of the IAG sub-commission for Europe (EUREF) and the International GNSS Service (IGS). Although meant to be a real-time tool, it comes with some post processing functionality. It can be used for data coming from Ntrip Broadcasters like
     289<ul>
     290<li><u>http://www.euref-ip.net/home</u></li>
     291<li><u>http://www.igs-ip.net/home</u></li>
     292<li><u>http://products.igs-ip.net/home</u></li>
     293<li><u>http://mgex.igs-ip.net/home</u> </li>
     294</ul>
     295or similar caster installation.
     296</p>
     297
     298<p>
     299BNC has been written under GNU General Public License (GPL). Source code is available from Subversion software archive <u>http://software.rtcm-ntrip.org/svn/trunk/BNC</u>. Precompiled binaries of BNC are available for MS Windows, Linux, and Mac OS X systems. They can be downloaded from <u>http://igs.bkg.bund.de/ntrip/download</u>.
     300</p>
     301<p>
     302Feel free to send us comments, suggestions or bug reports. Any contribution would be appreciated.
     303</p>
     304
     305<p>
     306<b>Authors</b><br><br>
     307The BKG Ntrip Client (BNC) with a Qt Graphical User Interface (GUI) and a Command Line Interface (CLI) has been developed for
     308<pre>
     309   Federal Agency for Cartography and Geodesy (BKG)
     310   c/o Dr. Axel R&uuml;lke
     311   Department of Geodesy, Section Satellite Navigation
     312   Frankfurt, Germany
     313   [axel.ruelke@bkg.bund.de]
     314</pre>
     315
     316The software has been written by
     317
     318<pre>
     319   Prof. Dr. Leo&scaron; Mervart
     320   Czech Technical University (CTU)
     321   Department of Geomatics
     322   Prague, Czech Republic
     323</pre>
     324</p>
     325
     326<p>
     327Prof. Mervart started working on BNC in 2005. His sole responsibility for writing the program code ended February 2015. In March 2015, Dipl.-Ing. Andrea St&uuml;rze took over the responsibility for maintaining  and further developing BNC's source code.
     328</p>
     329
     330<p>
     331<b>Documentation</b><br><br>
     332BNC provides context-sensitive help (<i>What's This</i>) related to specific objects. It furthermore comes with the here presented documentation, available as part of the software and as a PDF file. Responsible for offline documentation as well as online documentation at <u>http://software.rtcm-ntrip.org/export/HEAD/ntrip/trunk/BNC/src/bnchelp.html</u> and the example configurations is Dr. Georg Weber.
     333</p>
     334
     335<p>
     336Note that some figures presented in this documentation may show screenshots from earlier versions of BNC. If so, there is either no relevant change compared to the current appearance of the program or no change at all.
     337</p>
     338
     339<p>
     340<b>Contact</b><br><br>
     341Feel free to send us comments, suggestions or bug reports. Any contribution would be appreciated.
     342<pre>
     343   Federal Agency for Cartography and Geodesy (BKG)
     344   Department of Geodesy, Section Satellite Navigation
     345   Richard-Strauss-Allee 11
     346   60598 Frankfurt am Main, Germany
     347   email: igs-ip@bkg.bund.de
     348</pre>
     349</p>
     350
     351<p>
     352<b>Acknowledgements</b><br>
     353<ul>
     354<li>
     355Oliver Montenbruck, German Space Operations Center, DLR, Oberpfaffenhofen, Germany published a RTCM Version 2 decoder unter GNU GPL which has been integrated in BNC.
    59356</li>
    60 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-chapter2">BNC Overview</a><ul>
    61 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#supported-gnss-and-applications">Supported GNSS and applications</a></li>
    62 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#data-flow">Data Flow</a></li>
    63 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#handling">Handling</a></li>
    64 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#limitations">Limitations</a></li>
    65 </ul>
     357<li>
     358Thomas Yan, Australian NSW Land and Property Information, proofread earlier versions of BNC's Help Contents. Up to Version 2.11 he also provides builds of BNC for Mac OS X systems.
    66359</li>
    67 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-chapter3">Installation</a><ul>
    68 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#pre-compiled-builds">Pre-compiled builds</a></li>
    69 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#compilation">Compilation</a></li>
    70 </ul>
     360Scott Glazier, OmniSTAR Australia, has been helpful in finding BNC bugs in version 1.5.
    71361</li>
    72 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-chapter4">Configuration</a><ul>
    73 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#general-procedure">General procedure</a></li>
    74 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#examples-configuration-files">Examples configuration files</a></li>
    75 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#list-of-example-configuration-files">List of example configuration files</a></li>
    76 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#command-line-configuration-options">Command Line configuration options</a></li>
    77 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#command-line-configuration-options-overwriting-configuration-file-options">Command Line configuration options overwriting Configuration File options</a></li>
    78 </ul>
     362<li>
     363James Perlt, BKG, helped fixing bugs and redesigned BNC's main window in version 1.5.
    79364</li>
    80 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-chapter5">BNC software settings</a><ul>
    81 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#top-menu-bar">Top Menu Bar</a></li>
    82 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#network">Network</a></li>
    83 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#general">General</a></li>
    84 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#rinex-observations">RINEX Observations</a></li>
    85 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#rinex-ephemeris">RINEX Ephemeris</a></li>
    86 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#rinex-editing-qc">RINEX Editing &amp; QC</a></li>
    87 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#sp3-comparison">SP3 Comparison</a></li>
    88 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#broadcast-corrections">Broadcast Corrections</a></li>
    89 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#feed-engine">Feed Engine</a></li>
    90 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#serial-output">Serial output</a></li>
    91 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#outages">Outages</a></li>
    92 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#miscellaneous">Miscellaneous</a></li>
    93 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#ppp-client">PPP Client</a></li>
    94 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#combine-corrections">Combine Corrections</a></li>
    95 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#upload-corrections">Upload Corrections</a></li>
    96 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#upload-ephemeris">Upload Ephemeris</a></li>
    97 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#streams-canvas">Streams Canvas</a></li>
    98 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#logging-canvas">Logging Canvas</a></li>
    99 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#bottom-menu-bar">Bottom Menu Bar</a></li>
    100 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#command-line-options">Command Line Options</a></li>
    101 </ul>
     365<li>
     366Andre Hauschild, German Space Operations Center, DLR, revised the RTCM Version 2 decoder.
    102367</li>
    103 <li class="toctree-l1"><a class="reference internal" href="bnchelp.html#document-annex">Annex</a><ul>
    104 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#revision-history">Revision History</a></li>
    105 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#rtcm-standards">RTCM Standards</a></li>
    106 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#command-line-help">Command Line Help</a></li>
    107 <li class="toctree-l2"><a class="reference internal" href="bnchelp.html#further-reading">Further Reading</a></li>
    108 </ul>
     368<li>
     369Zdenek Lukes, Czech Technical University Prague, Department of Geodesy, extended the RTCM Version 2 decoder to handle message types 3, 20, 21, and 22 and added the loss of lock indicator.
    109370</li>
    110 </ul>
    111 
    112         </div>
    113       </div>
    114 
    115     <div class="document">
    116       <div class="documentwrapper">
    117         <div class="bodywrapper">
    118           <div class="body" role="main">
    119            
    120   <div class="section" id="welcome-to-bnc-s-documentation">
    121 <h1>Welcome to BNC&#8217;s documentation!<a class="headerlink" href="#welcome-to-bnc-s-documentation" title="Permalink to this headline">¶</a></h1>
    122 <p>Contents:</p>
    123 <div class="toctree-wrapper compound" id="mastertoc">
    124 <span id="document-abbreviations"></span><span class="target" id="index-0"></span><span class="target" id="index-1"></span><span class="target" id="index-2"></span><span class="target" id="index-3"></span><span class="target" id="index-4"></span><span class="target" id="index-5"></span><span class="target" id="index-6"></span><span class="target" id="index-7"></span><span class="target" id="index-8"></span><span class="target" id="index-9"></span><span class="target" id="index-10"></span><span class="target" id="index-11"></span><span class="target" id="index-12"></span><span class="target" id="index-13"></span><span class="target" id="index-14"></span><span class="target" id="index-15"></span><span class="target" id="index-16"></span><span class="target" id="index-17"></span><span class="target" id="index-18"></span><span class="target" id="index-19"></span><span class="target" id="index-20"></span><span class="target" id="index-21"></span><span class="target" id="index-22"></span><span class="target" id="index-23"></span><span class="target" id="index-24"></span><span class="target" id="index-25"></span><span class="target" id="index-26"></span><span class="target" id="index-27"></span><span class="target" id="index-28"></span><span class="target" id="index-29"></span><span class="target" id="index-30"></span><span class="target" id="index-31"></span><span class="target" id="index-32"></span><span class="target" id="index-33"></span><span class="target" id="index-34"></span><span class="target" id="index-35"></span><span class="target" id="index-36"></span><span class="target" id="index-37"></span><span class="target" id="index-38"></span><span class="target" id="index-39"></span><span class="target" id="index-40"></span><span class="target" id="index-41"></span><span class="target" id="index-42"></span><span class="target" id="index-43"></span><span class="target" id="index-44"></span><span class="target" id="index-45"></span><span class="target" id="index-46"></span><span class="target" id="index-47"></span><span class="target" id="index-48"></span><span class="target" id="index-49"></span><span class="target" id="index-50"></span><span class="target" id="index-51"></span><span class="target" id="index-52"></span><span class="target" id="index-53"></span><span class="target" id="index-54"></span><span class="target" id="index-55"></span><span class="target" id="index-56"></span><span class="target" id="index-57"></span><span class="target" id="index-58"></span><span class="target" id="index-59"></span><span class="target" id="index-60"></span><span class="target" id="index-61"></span><span class="target" id="index-62"></span><span class="target" id="index-63"></span><span class="target" id="index-64"></span><span class="target" id="index-65"></span><span class="target" id="index-66"></span><span class="target" id="index-67"></span><span class="target" id="index-68"></span><span class="target" id="index-69"></span><span class="target" id="index-70"></span><span class="target" id="index-71"></span><span class="target" id="index-72"></span><span class="target" id="index-73"></span><span class="target" id="index-74"></span><span class="target" id="index-75"></span><span class="target" id="index-76"></span><span class="target" id="index-77"></span><span class="target" id="index-78"></span><span class="target" id="index-79"></span><span class="target" id="index-80"></span><span class="target" id="index-81"></span><span class="target" id="index-82"></span><span class="target" id="index-83"></span><span class="target" id="index-84"></span><span class="target" id="index-85"></span><span class="target" id="index-86"></span><span class="target" id="index-87"></span><span class="target" id="index-88"></span><div class="section" id="abbreviations">
    125 <span id="index-89"></span><h2>Abbreviations<a class="headerlink" href="#abbreviations" title="Permalink to this headline">¶</a></h2>
    126 <table border="1" class="docutils">
    127 <colgroup>
    128 <col width="13%" />
    129 <col width="87%" />
    130 </colgroup>
    131 <tbody valign="top">
    132 <tr class="row-odd"><td>AC</td>
    133 <td>Analysis Center</td>
    134 </tr>
    135 <tr class="row-even"><td>AFREF</td>
    136 <td>IAG Reference Frame Sub-Commission for Africa</td>
    137 </tr>
    138 <tr class="row-odd"><td>ANTEX</td>
    139 <td>Antenna Exchange Format</td>
    140 </tr>
    141 <tr class="row-even"><td>APC</td>
    142 <td>Antenna Phase Center</td>
    143 </tr>
    144 <tr class="row-odd"><td>APREF</td>
    145 <td>IAG Reference Frame Sub-Commission for Asia and Pacific</td>
    146 </tr>
    147 <tr class="row-even"><td>ARP</td>
    148 <td>Antenna Reference Point</td>
    149 </tr>
    150 <tr class="row-odd"><td>BKG</td>
    151 <td>Bundesamt für Kartographie und Geodäsie</td>
    152 </tr>
    153 <tr class="row-even"><td>BNC</td>
    154 <td>BNK Ntrip Client</td>
    155 </tr>
    156 <tr class="row-odd"><td>BSW</td>
    157 <td>Bernese GNSS Software</td>
    158 </tr>
    159 <tr class="row-even"><td>CC</td>
    160 <td>Combination Center</td>
    161 </tr>
    162 <tr class="row-odd"><td>CLI</td>
    163 <td>Command Line Interface</td>
    164 </tr>
    165 <tr class="row-even"><td>CoM</td>
    166 <td>Center Of Mass</td>
    167 </tr>
    168 <tr class="row-odd"><td>DGNSS</td>
    169 <td>Differential GNSS</td>
    170 </tr>
    171 <tr class="row-even"><td>DGPS-IP</td>
    172 <td>Differential GPS via Internet Protocol</td>
    173 </tr>
    174 <tr class="row-odd"><td>DMG</td>
    175 <td>Disk Image, File</td>
    176 </tr>
    177 <tr class="row-even"><td>DREF91</td>
    178 <td>Geodetic Datum for Germany 1991</td>
    179 </tr>
    180 <tr class="row-odd"><td>ECEF</td>
    181 <td>Earth-Centred-Earth-Fixed</td>
    182 </tr>
    183 <tr class="row-even"><td>EDGE</td>
    184 <td>Enhanced Data Rates for GSM Evolution</td>
    185 </tr>
    186 <tr class="row-odd"><td>ETRF2000</td>
    187 <td>European Terrestrial Reference Frame 2000</td>
    188 </tr>
    189 <tr class="row-even"><td>EUREF</td>
    190 <td>IAG Reference Frame Sub-Commission for Europe</td>
    191 </tr>
    192 <tr class="row-odd"><td>EoE</td>
    193 <td>End of Epoch</td>
    194 </tr>
    195 <tr class="row-even"><td>FKP</td>
    196 <td>Flächen-Korrektur-Parameter</td>
    197 </tr>
    198 <tr class="row-odd"><td>FTP</td>
    199 <td>File Transfer Protocol</td>
    200 </tr>
    201 <tr class="row-even"><td>GDA94</td>
    202 <td>Geodetic Datum Australia 1994</td>
    203 </tr>
    204 <tr class="row-odd"><td>GM</td>
    205 <td>Google Maps</td>
    206 </tr>
    207 <tr class="row-even"><td>GNSS</td>
    208 <td>Global Navigation Satellite System</td>
    209 </tr>
    210 <tr class="row-odd"><td>GNU</td>
    211 <td>GNU&#8217;s Not Unix</td>
    212 </tr>
    213 <tr class="row-even"><td>GPL</td>
    214 <td>General Public License</td>
    215 </tr>
    216 <tr class="row-odd"><td>GPRS</td>
    217 <td>General Packet Radio Service</td>
    218 </tr>
    219 <tr class="row-even"><td>GPSWD</td>
    220 <td>GPS Week and Day</td>
    221 </tr>
    222 <tr class="row-odd"><td>GSM</td>
    223 <td>Global System for Mobile Communications</td>
    224 </tr>
    225 <tr class="row-even"><td>GUI</td>
    226 <td>Graphical User Interface</td>
    227 </tr>
    228 <tr class="row-odd"><td>HP MSM</td>
    229 <td>High Precision Multiple Signal Messages</td>
    230 </tr>
    231 <tr class="row-even"><td>HR URA</td>
    232 <td>High Rate User Range Accuracy</td>
    233 </tr>
    234 <tr class="row-odd"><td>HTTP</td>
    235 <td>Hypertext Transfer Protocol</td>
    236 </tr>
    237 <tr class="row-even"><td>HTTPS</td>
    238 <td>Hypertext Transfer Protocol Secure</td>
    239 </tr>
    240 <tr class="row-odd"><td>IAG</td>
    241 <td>International Association of Geodesy</td>
    242 </tr>
    243 <tr class="row-even"><td>ICECAST</td>
    244 <td>Streaming Media Server</td>
    245 </tr>
    246 <tr class="row-odd"><td>IGS08</td>
    247 <td>IGS Reference Frame 2008</td>
    248 </tr>
    249 <tr class="row-even"><td>IGS</td>
    250 <td>International GNSS Service</td>
    251 </tr>
    252 <tr class="row-odd"><td>IOD</td>
    253 <td>Issue of Data</td>
    254 </tr>
    255 <tr class="row-even"><td>IP</td>
    256 <td>Internet Protocol</td>
    257 </tr>
    258 <tr class="row-odd"><td>ITRF2008</td>
    259 <td>International Terrestrial Reference Frame 2008</td>
    260 </tr>
    261 <tr class="row-even"><td>L3</td>
    262 <td>Ionosphere-Free Linear Combination Of Phase Observations</td>
    263 </tr>
    264 <tr class="row-odd"><td>LAN</td>
    265 <td>Local Area Network</td>
    266 </tr>
    267 <tr class="row-even"><td>LC</td>
    268 <td>Linea Combination</td>
    269 </tr>
    270 <tr class="row-odd"><td>M-GEX</td>
    271 <td>Multi GNSS-Experiment</td>
    272 </tr>
    273 <tr class="row-even"><td>MAC</td>
    274 <td>Master Auxiliary Concept</td>
    275 </tr>
    276 <tr class="row-odd"><td>MJD</td>
    277 <td>Modified Julian Date</td>
    278 </tr>
    279 <tr class="row-even"><td>MSI</td>
    280 <td>Microsoft Installer, File</td>
    281 </tr>
    282 <tr class="row-odd"><td>MSM</td>
    283 <td>Multiple Signal Messages</td>
    284 </tr>
    285 <tr class="row-even"><td>MW</td>
    286 <td>Melbourne W&#8221;ubbena Linear Combination</td>
    287 </tr>
    288 <tr class="row-odd"><td>NAD83</td>
    289 <td>North American Datum 1983</td>
    290 </tr>
    291 <tr class="row-even"><td>NAREF</td>
    292 <td>IAG Reference Frame Sub-Commission for North America</td>
    293 </tr>
    294 <tr class="row-odd"><td>NMEA</td>
    295 <td>National Marine Electronics Association Format</td>
    296 </tr>
    297 <tr class="row-even"><td>Ntrip</td>
    298 <td>Networked Transport of RTCM via Internet Protocol</td>
    299 </tr>
    300 <tr class="row-odd"><td>OSM</td>
    301 <td>OpenStreetMap</td>
    302 </tr>
    303 <tr class="row-even"><td>OSR</td>
    304 <td>Observation Space Representation</td>
    305 </tr>
    306 <tr class="row-odd"><td>P3</td>
    307 <td>Ionosphere-Free Linear Combination Of Code Observations</td>
    308 </tr>
    309 <tr class="row-even"><td>PDOP</td>
    310 <td>Positional Dilution Of Precision</td>
    311 </tr>
    312 <tr class="row-odd"><td>PNG</td>
    313 <td>Portable Network Graphics</td>
    314 </tr>
    315 <tr class="row-even"><td>PPP</td>
    316 <td>Precise Point Positioning</td>
    317 </tr>
    318 <tr class="row-odd"><td>Qt</td>
    319 <td>Cross-Platform Application Framework</td>
    320 </tr>
    321 <tr class="row-even"><td>REQC</td>
    322 <td>RINEX Editing and Quality Checking</td>
    323 </tr>
    324 <tr class="row-odd"><td>RINEX</td>
    325 <td>Receiver Independent Exchange Format</td>
    326 </tr>
    327 <tr class="row-even"><td>RTCM SC-104</td>
    328 <td>Radio Technical Commission for Maritime Services, Special Committee 104</td>
    329 </tr>
    330 <tr class="row-odd"><td>RTK</td>
    331 <td>Real Time Kinematic</td>
    332 </tr>
    333 <tr class="row-even"><td>RTKPLOT</td>
    334 <td>View and Plot Positioning Solutions Software, Part of RTKLIB</td>
    335 </tr>
    336 <tr class="row-odd"><td>RTNET</td>
    337 <td>Real-Time Network Format</td>
    338 </tr>
    339 <tr class="row-even"><td>RTP</td>
    340 <td>Real-Time Transport Protocol</td>
    341 </tr>
    342 <tr class="row-odd"><td>RTSP</td>
    343 <td>Real-Time Streaming Protocol</td>
    344 </tr>
    345 <tr class="row-even"><td>SBAS</td>
    346 <td>Space Based Augmentation System</td>
    347 </tr>
    348 <tr class="row-odd"><td>SINEX TRO</td>
    349 <td>Troposphere Solution Independent Exchange Format</td>
    350 </tr>
    351 <tr class="row-even"><td>SINEX</td>
    352 <td>Solution Independent Exchange Format</td>
    353 </tr>
    354 <tr class="row-odd"><td>SIRGAS2000</td>
    355 <td>Geodetic Datum for Latin America and Caribbean 2000</td>
    356 </tr>
    357 <tr class="row-even"><td>SIRGAS95</td>
    358 <td>Geodetic Datum for Latin America and Caribbean 1995</td>
    359 </tr>
    360 <tr class="row-odd"><td>SIRGAS</td>
    361 <td>IAG Reference Frame Sub-Commission for Latin America and Caribbean</td>
    362 </tr>
    363 <tr class="row-even"><td>SP3</td>
    364 <td>Standard Product # 3</td>
    365 </tr>
    366 <tr class="row-odd"><td>SPP</td>
    367 <td>Single Point Positioning</td>
    368 </tr>
    369 <tr class="row-even"><td>SSL</td>
    370 <td>Secure Sockets Layer</td>
    371 </tr>
    372 <tr class="row-odd"><td>SSR</td>
    373 <td>State Space Representation</td>
    374 </tr>
    375 <tr class="row-even"><td>SVN</td>
    376 <td>Subversion, Revision Control System</td>
    377 </tr>
    378 <tr class="row-odd"><td>TCP</td>
    379 <td>Transmission Control Protocol</td>
    380 </tr>
    381 <tr class="row-even"><td>TEQC</td>
    382 <td>Translation, Editing and Quality Checking</td>
    383 </tr>
    384 <tr class="row-odd"><td>TLS</td>
    385 <td>Transport Layer Security</td>
    386 </tr>
    387 <tr class="row-even"><td>UDP</td>
    388 <td>User Datagram Protocol</td>
    389 </tr>
    390 <tr class="row-odd"><td>UMTS</td>
    391 <td>Universal Mobile Telecommunications System</td>
    392 </tr>
    393 <tr class="row-even"><td>URA</td>
    394 <td>User Range Accuracy</td>
    395 </tr>
    396 <tr class="row-odd"><td>VRS</td>
    397 <td>Virtual Reference Station</td>
    398 </tr>
    399 <tr class="row-even"><td>VTEC</td>
    400 <td>Vertical Total Electron Content</td>
    401 </tr>
    402 </tbody>
    403 </table>
    404 </div>
    405 <span id="document-chapter1"></span><div class="section" id="introduction">
    406 <h2>Introduction<a class="headerlink" href="#introduction" title="Permalink to this headline">¶</a></h2>
    407 <div class="section" id="purpose">
    408 <h3>Purpose<a class="headerlink" href="#purpose" title="Permalink to this headline">¶</a></h3>
    409 <p>The BKG Ntrip Client (BNC) is a program for simultaneously retrieving, decoding, converting and processing or analyzing real-time GNSS data streams applying the &#8216;Networked Transport of RTCM via Internet Protocol&#8217; (Ntrip) standard. It has been developed within the framework of the IAG sub-commission for Europe (EUREF) and the International GNSS Service (IGS). Although meant to be a real-time tool, it comes with some post processing functionality. It can be used for data coming from Ntrip Broadcasters like</p>
    410 <ul class="simple">
    411 <li><a class="reference external" href="http://www.euref-ip.net/home">http://www.euref-ip.net/home</a></li>
    412 <li><a class="reference external" href="http://www.igs-ip.net/home">http://www.igs-ip.net/home</a></li>
    413 <li><a class="reference external" href="http://products.igs-ip.net/home">http://products.igs-ip.net/home</a></li>
    414 <li><a class="reference external" href="http://mgex.igs-ip.net/home">http://mgex.igs-ip.net/home</a></li>
    415 </ul>
    416 <p>or similar caster installation.</p>
    417 <p>BNC has been written under GNU General Public License (GPL). Source code is available from Subversion software archive <a class="reference external" href="http://software.rtcm-ntrip.org/svn/trunk/BNC">http://software.rtcm-ntrip.org/svn/trunk/BNC</a>. Precompiled binaries of BNC are available for MS Windows, Linux, and Mac OS X systems. They can be downloaded from <a class="reference external" href="http://igs.bkg.bund.de/ntrip/download">http://igs.bkg.bund.de/ntrip/download</a>.</p>
    418 <p>Promoting Open RTCM Standards for streaming GNSS data over the Internet has been a major aspect in developing BNC as Open Source real-time software. Basically, the tool enables the test, validation and further evolution of new RTCM messages for precise satellite navigation. With high-level source code at hand, it also allows university education to catch up with comprehensive state-of-the-art positioning and potentially contributes fresh ideas which are free from any licensing.</p>
    419 <p>BNC was designed to serve the following purposes</p>
    420 <ul class="simple">
     371<li>
     372Jan Dousa, Geodetic Observatory Pecny, Czech Republic, helped with fixing bugs in version 2.5.
     373</li>
     374<li>
     375Denis Laurichesse, Centre National d'Etudes Spatiales (CNES), suggested synchronizing observations and clock corrections to reduce high frequency noise in PPP solutions.
     376</li>
     377<li>
     378Lennard Huisman, Kadaster Netherlands, and Rolf Dach, Astronomical Institute University of Bern, assisted in handling satellite clocks in transformations from ITRF to regional reference frames.
     379</li>
     380</ul>
     381</p>
     382
     383<p><h4>1.1 <a name="introPurpose">Purpose</h4></p>
     384
     385<p>
     386Promoting Open RTCM Standards for streaming GNSS data over the Internet has been a major aspect in developing BNC as Open Source real-time software. Basically, the tool enables the test, validation and further evolution of new RTCM messages for precise satellite navigation. With high-level source code at hand, it also allows university education to catch up with comprehensive state-of-the-art positioning and potentially contributes fresh ideas which are free from any licensing.
     387</p>
     388
     389<p> BNC was designed to serve the following purposes:
     390<ul>
    421391<li>Retrieve real-time GNSS data streams available through Ntrip transport protocol;</li>
    422392<li>Retrieve real-time GNSS data streams via TCP directly from an IP address without using the Ntrip transport protocol;</li>
    … …  
    427397<li>Convert RINEX Version 2 to RINEX Version 3 and vice versa;</li>
    428398<li>Compare SP3 files containing satellite orbit and clock data;</li>
    429 <li>Generate orbit and clock corrections to Broadcast Ephemeris through an IP port to<ul>
     399<li>Generate orbit and clock corrections to Broadcast Ephemeris through an IP port to</li>
     400<ul>
    430401<li>support real-time Precise Point Positioning on GNSS rovers;</li>
    431402<li>support the (outside) combination of such streams as coming simultaneously from various correction providers;</li>
    432403</ul>
    433 </li>
    434404<li>Generate ephemeris and synchronized or unsynchronized observations epoch by epoch through an IP port to support real-time GNSS network engines;</li>
    435405<li>Feed a stream into a GNSS receiver via serial communication link;</li>
    … …  
    440410<li>Plot positions derived via PPP from RTCM streams or RINEX files on maps from Google Map or OpenStreetMap;</li>
    441411<li>Simultaneously process several Broadcast Correction streams to produce, encode and upload combined Broadcast Corrections;</li>
     412
    442413<li>Estimate real-time tropospheric zenith path delays and save them in SINEX troposphere file format;</li>
    443 <li>Read GNSS orbits and clocks in a plain ASCII format from an IP port. They can be produced by a real-time GNSS engine such as RTNET and should be referenced to the IGS Earth-Centered-Earth-Fixed (ECEF) reference system. BNC will then<ul>
     414
     415<li>Read GNSS orbits and clocks in a plain ASCII format from an IP port. They can be produced by a real-time GNSS engine such as RTNET and should be referenced to the IGS Earth-Centered-Earth-Fixed (ECEF) reference system. BNC will then</li>
     416<ul>
    444417<li>Convert the IGS Earth-Centered-Earth-Fixed orbits and clocks into Broadcast Corrections with radial, along-track and out-of-plane components;</li>
    445418<li>Upload Broadcast Corrections as an RTCM Version 3 stream to an Ntrip Broadcaster;</li>
    … …  
    447420<li>Log the Broadcast Corrections as Clock RINEX files for further processing using other tools than BNC;</li>
    448421<li>Log the Broadcast Corrections as SP3 files for further processing using other tools than BNC;</li>
     422</ul>
    449423<li>Upload a Broadcast Ephemeris stream in RTCM Version 3 format;</li>
    450424</ul>
    451 </li>
    452 </ul>
    453 <p>BNC supports the following GNSS stream formats and message types:</p>
    454 <ul class="simple">
    455 <li>RTCM Version 2 message types;</li>
    456 <li>RTCM Version 3 &#8216;conventional&#8217; message types;</li>
     425</p>
     426
     427<p>
     428BNC supports the following GNSS stream formats and message types:
     429</p>
     430<p>
     431<ul>
     432<li>RTCM Version 2 message types; </li>
     433<li>RTCM Version 3 'conventional' message types;</li>
    457434<li>RTCM Version 3 message types for Broadcast Ephemeris;</li>
    458 <li>RTCM Version 3 &#8216;State Space Representation&#8217; (SSR) messages;</li>
    459 <li>RTCM Version 3 &#8216;Multiple Signal Messages&#8217; (MSM) and &#8216;High Precision Multiple Signal Messages&#8217; (HP MSM);</li>
    460 <li>RTNET, a plain ASCII format defined within BNC to receive orbits and clocks from a serving GNSS engine.</li>
    461 </ul>
    462 <p>BNC supports the following GNSS file formats:</p>
    463 <ul class="simple">
    464 <li>RINEX Version 2.11 &amp; 3.03, Receiver Independent Exchange format for observations, navigation and meteorological data;</li>
     435<li>RTCM Version 3 'State Space Representation' (SSR) messages;</li>
     436<li>RTCM Version 3 'Multiple Signal Messages' (MSM) and 'High Precision Multiple Signal Messages' (HP MSM);</li>
     437<li>RTNET, a plain ASCII format defined within BNC to receive orbits and clocks from a serving GNSS engine.
     438</ul>
     439</p>
     440
     441<p>
     442BNC supports the following GNSS file formats:
     443</p>
     444<p>
     445<ul>
     446<li>RINEX Version 2.11 & 3.03, Receiver Independent Exchange format for observations, navigation and meteorological data;</li>
    465447<li>SINEX Version 2.10, Solution Independent Exchange format for station position and velocity solutions;</li>
    466448<li>SINEX TRO Draft Version 2.00, Troposphere Solution Independent Exchange format for zenith path delay products;</li>
    … …  
    470452<li>NMEA Version 0813, National Marine Electronics Association format for satellite navigation data;</li>
    471453</ul>
    472 <p>Note that BNC allows to by-pass decoding and conversion algorithms for incoming streams, leaves whatever is received untouched to save it in files or output it through local TCP/IP port.</p>
    473 </div>
    474 <div class="section" id="authors">
    475 <h3>Authors<a class="headerlink" href="#authors" title="Permalink to this headline">¶</a></h3>
    476 <p>The BKG Ntrip Client (BNC) with a Qt Graphical User Interface (GUI) and a Command Line Interface (CLI) has been developed for</p>
    477 <blockquote>
    478 <div><div class="line-block">
    479 <div class="line">Federal Agency for Cartography and Geodesy (BKG)</div>
    480 <div class="line">Department of Geodesy, Section Satellite Navigation</div>
    481 <div class="line">Frankfurt am Main, Germany</div>
    482 </div>
    483 </div></blockquote>
    484 <p>The software has been written by</p>
    485 <blockquote>
    486 <div><div class="line-block">
    487 <div class="line">Prof. Dr. Leos Mervart</div>
    488 <div class="line">Czech Technical University (CTU)</div>
    489 <div class="line">Department of Geomatics</div>
    490 <div class="line">Prague, Czech Republic</div>
    491 </div>
    492 </div></blockquote>
    493 <p>Prof. Mervart started working on BNC in 2005. His sole responsibility for writing the program code ended February 2015. In March 2015, Dipl.-Ing. Andrea Stürze took over the responsibility for maintaining and further developing BNC&#8217;s source code.</p>
    494 </div>
    495 <div class="section" id="documentation">
    496 <h3>Documentation<a class="headerlink" href="#documentation" title="Permalink to this headline">¶</a></h3>
    497 <p>BNC provides context-sensitive help ( <em>What&#8217;s This</em> ) related to specific objects. It furthermore comes with the here presented documentation, available as part of the software and as a PDF file. Responsible for offline documentation as well as online documentation at <a class="reference external" href="http://software.rtcm-ntrip.org/export/HEAD/ntrip/trunk/BNC/src/bnchelp.html">http://software.rtcm-ntrip.org/export/HEAD/ntrip/trunk/BNC/src/bnchelp.html</a> and example configurations is Dr. Georg Weber.</p>
    498 <p>Note that some figures presented in this documentation may show screen shots from earlier versions of BNC. If so, there is either no relevant change compared to the current appearance of the program or no change at all.</p>
    499 </div>
    500 <div class="section" id="contact">
    501 <h3>Contact<a class="headerlink" href="#contact" title="Permalink to this headline">¶</a></h3>
    502 <p>Feel free to send us comments, suggestions or bug reports. Any contribution would be appreciated.</p>
    503 <div class="line-block">
    504 <div class="line">Federal Agency for Cartography and Geodesy (BKG)</div>
    505 <div class="line">Department of Geodesy, Section Satellite Navigation</div>
    506 <div class="line">Richard-Strauss-Allee 11</div>
    507 <div class="line">60598 Frankfurt am Main, Germany</div>
    508 <div class="line">Email: <a class="reference external" href="mailto:igs-ip&#37;&#52;&#48;bkg&#46;bund&#46;de">igs-ip<span>&#64;</span>bkg<span>&#46;</span>bund<span>&#46;</span>de</a></div>
    509 </div>
    510 </div>
    511 <div class="section" id="acknowledgements">
    512 <h3>Acknowledgements<a class="headerlink" href="#acknowledgements" title="Permalink to this headline">¶</a></h3>
    513 <ul class="simple">
    514 <li>Oliver Montenbruck, German Space Operations Center, DLR, Oberpfaffenhofen, Germany published a RTCM Version 2 decoder unter GNU GPL which has been integrated in BNC.</li>
    515 <li>Thomas Yan, Australian NSW Land and Property Information, proofread earlier versions of BNC&#8217;s Help Contents. Up to Version 2.11 he also provides builds of BNC for Mac OS X systems.</li>
    516 <li>Scott Glazier, OmniSTAR Australia, has been helpful in finding BNC bugs in version 1.5.</li>
    517 <li>James Perlt, BKG, helped fixing bugs and redesigned BNC&#8217;s main window in version 1.5.</li>
    518 <li>André Hauschild, German Space Operations Center, DLR, revised the RTCM Version 2 decoder.</li>
    519 <li>Zdenek Lukes, Czech Technical University Prague, Department of Geodesy, extended the RTCM Version 2 decoder to handle message types 3, 20, 21, and 22 and added the loss of lock indicator.</li>
    520 <li>Jan Dousa, Geodetic Observatory Pecny, Czech Republic, helped with fixing bugs in version 2.5.</li>
    521 <li>Denis Laurichesse, Centre National d&#8217;&#8216;Etudes Spatiales (CNES), suggested synchronizing observations and clock corrections to reduce high frequency noise in PPP solutions.</li>
    522 <li>Lennard Huisman, Kadaster Netherlands, and Rolf Dach, Astronomical Institute University of Bern, assisted in handling satellite clocks in transformations from ITRF to regional reference frames.</li>
    523 </ul>
    524 </div>
    525 <div class="section" id="looking-back">
    526 <h3>Looking Back<a class="headerlink" href="#looking-back" title="Permalink to this headline">¶</a></h3>
    527 <p>A basic function of BNC is streaming GNSS data over the open Internet using the Ntrip transport protocol. Employing IP streaming for satellite positioning goes back to the beginning of our century. Wolfgang Rupprecht has been the first person who developed TCP/IP server software under the acronym of DGPS-IP <a class="reference internal" href="bnchelp.html#rupprecht2000a" id="id1">[1]</a> and published it under GNU General Public License (GPL). While connecting marine beacon receivers to PCs with permanent access to the Internet he transmitted DGPS corrections in an RTCM format to support Differential GPS positioning over North America. With approximately 200 bits/sec the bandwidth requirement for disseminating beacon data was comparatively small. Each stream was transmitted over a unique combination of IP address and port. Websites informed about existing streams and corresponding receiver positions.</p>
    528 <p>To cope with an increasing number of transmitting GNSS reference stations, the Federal Agency for Cartography and Geodesy (BKG) together with the Informatik Centrum Dortmund (ICD) in Germany developed a streaming protocol for satellite navigation data called &#8216;Networked Transport of RTCM via Internet Protocol&#8217; (Ntrip). The protocol was built on top of the HTTP standard and included the provision of meta data describing the stream content. Any stream could now be globally transmitted over just one IP port: HTTP port 80. Stream availability and content details became part of the transport protocol. The concept was first published in 2003 <a class="reference internal" href="bnchelp.html#weber2004a" id="id2">[2]</a>, <a class="reference internal" href="bnchelp.html#weber2005a" id="id3">[3]</a> and was based on three software components, namely an NtripServer pushing data from a reference station to an NtripCaster and an NtripClient pulling data from the stream splitting caster to support a rover receiver. (Note that from a socket-programmers perspective NtripServer and NtripClient both act as clients; only the NtripCaster operates as socket-server.) Ntrip could essentially benefit from Internet Radio developments. It was the ICECAST multimedia server, which provided the bases for BKG&#8217;s &#8216;Professional Ntrip Broadcaster&#8217; with software published first in 2003 and of course again as Open Source under GPL.</p>
    529 <p>For BKG as a governmental agency, making Ntrip an Open Industry Standard has been an objective from the very beginning. The &#8216;Radio Technical Commission for Maritime Services&#8217; (RTCM) accepted &#8216;Ntrip Version 1&#8217; in 2004 as &#8216;RTCM Recommended Standard&#8217; <a class="reference internal" href="bnchelp.html#weber2005b" id="id4">[4]</a>. Nowadays there is almost no geodetic GNSS receiver which does not come with integrated NtripClient and NtripServer functionality as part of the firmware. Hundreds of NtripCaster implementations are operated world-wide for highly accurate satellite navigation through RTK networks. Thousands of reference stations upload observations via NtripServer to central computing facilities for any kind of NtripClient application. In 2011 &#8216;Ntrip Version 2&#8217; was released <a class="reference internal" href="bnchelp.html#rtcm-sc104-2011a" id="id5">[5]</a> which cleared and fixed some design problems and HTTP protocol violations. It also supports TCP/IP via SSL and adds optional communication over RTSP/RTP and UDP.</p>
    530 <p>With the advent of Ntrip as an open streaming standard, BKG&#8217;s interest turned towards taking advantage from free real-time access to GNSS observations. International Associations such as the IAG Reference Frame Sub Commissions for Africa (AFREF), Asia &amp; Pacific (APREF), Europe (EUREF), North America (NAREF) Latin America &amp; Caribbean (SIRGAS), and the International GNSS Service (IGS) maintain continental or even global GNSS networks with the majority of modern receivers supporting Ntrip stream upload. Through operating BKG&#8217;s NtripCaster software, these networks became extremely valuable sources of real-time GNSS information. In 2005, this was the starting point for developing the &#8216;BKG Ntrip Client&#8217; (BNC) as a multi-stream Open Source NtripClient that allows pulling hundreds of streams simultaneously from any number of NtripCaster installations world-wide. Decoding incoming RTCM streams and output observations epoch by epoch via IP port to feed a real-time GNSS network engine became BNC&#8217;s first and foremost ability <a class="reference internal" href="bnchelp.html#weber2009a" id="id6">[6]</a>. Converting decoded streams to short high-rate RINEX files to assist near real-time applications became a welcome by-product right from the start of this development.</p>
    531 <p>Adding real-time Precise Point Positioning (PPP) support to BNC began in 2010 as an important completion in view of developing an Open RTCM Standard for that. According to the State Space Representation (SSR) model, new Version 3 messages are proposed to provide e.g. satellite orbit and clock corrections and ionospheric corrections as well as biases for code and phase data. The ultimate goal for SSR standardization is to reach centimeter level accuracy within seconds as an alternative to Network RTK methods such as VRS, FKP, and MAC. Because of interoperability aspects, an Open Standard in this area is of particular interest for clients. Regarding stand-alone PPP in BNC, it is worth mentioning that the program is not and can never be in competition with a receiver manufacturer&#8217;s proprietary solution. Only software or services that are part of a receiver firmware could have the potential of becoming a thread for commercial interests. However, implementing or not implementing an Open PPP approach in a firmware is and will always remain a manufacturer&#8217;s decision.</p>
    532 <p>Implementing some post processing capability is essential for debugging real-time software in case of problems. So certain real-time options in BNC were complemented to work offline through reading data from files. Moreover, beginning in 2012, the software was extended to support Galileo, BeiDou, and QZSS besides GPS and GLONASS. With that, the Open Source tool BNC could be used for RINEX Version 3 file editing, concatenation and quality checks, a post processing functionality demanded by the IGS Multi-GNSS Experiment and not really covered at that time by UNAVCO&#8217;s famous TEQC program with its limitation on GPS.</p>
    533 <p>Over the years, the BNC Subversion (SVN) software archive received over seven thousand commits made by 11 contributors representing about one hundred thirty thousand lines of code. The well-established, mature codebase is mostly written in C++ language. Its publication under GNU GPL is thought to be well-suited for test, validation and demonstration of new approaches in precise real-time satellite navigation when IP streaming is involved. Commissioned by a German governmental agency, the overall intention has been to push the development of RTCM Recommended Standards to the benefit of IAG institutions and services such as IGS and the interested public in general.</p>
    534 <p>In February 2014 the overall responsibility at BKG for the concept and realization of BNC was handed over from Georg Weber to Axel R{&#8220;u}lke. He is in charge now for guiding the application and further evolution of the software in view of appearing new satellite navigation systems and services.</p>
    535 </div>
    536 </div>
    537 <span id="document-chapter2"></span><div class="section" id="bnc-overview">
    538 <span id="index-0"></span><h2>BNC Overview<a class="headerlink" href="#bnc-overview" title="Permalink to this headline">¶</a></h2>
    539 <div class="section" id="supported-gnss-and-applications">
    540 <span id="index-1"></span><h3>Supported GNSS and applications<a class="headerlink" href="#supported-gnss-and-applications" title="Permalink to this headline">¶</a></h3>
    541 <p>BNC is permanently completed to finally support all existing GNSS systems throughout all features of the program. <a class="reference internal" href="#tab-bnc-rtcm"><span class="std std-numref">Table 1</span></a> shows in detail which GNSS systems are supported so far by particular applications when using the latest BNC version. Application areas named here are:</p>
    542 <ul class="simple">
    543 <li>Decoding of RTCM or RTNET <a class="footnote-reference" href="#f-rtnet" id="id1">[1]</a> streams</li>
     454</p>
     455
     456<p>
     457Note that BNC allows to by-pass decoding and conversion algorithms for incoming streams, leaves whatever is received untouched to save it in files or output it through local TCP/IP port.
     458</p>
     459
     460<p><h4>1.2 <a name="introSystem">Supported GNSS</h4></p>
     461<p>
     462BNC is permanently completed to finally support all existing GNSS systems throughout all features of the program. The table below shows in detail which GNSS systems are supported so far by particular applications when using the latest BNC version. Application areas named here are:
     463<ul>
     464<li>Decoding of RTCM or RTNET streams</li>
    544465<li>RINEX and SP3 file input and output</li>
    545466<li>Encoding of SSR and ephemeris messages</li>
    … …  
    548469<li>Combining/merging SSR or ephemeris messages from various real-time sources</li>
    549470</ul>
    550 <p>It is indicated when a message implementation in BNC could so far only be based on a &#8216;RTCM Proposal&#8217;.</p>
    551 <table border="1" class="docutils" id="id2">
    552 <span id="tab-bnc-rtcm"></span><caption><span class="caption-number">Table 1 </span><span class="caption-text">Status of RTCM Version 3 message implementations in BNC supporting various GNSS systems.</span><a class="headerlink" href="#id2" title="Permalink to this table">¶</a></caption>
    553 <colgroup>
    554 <col width="11%" />
    555 <col width="17%" />
    556 <col width="10%" />
    557 <col width="9%" />
    558 <col width="9%" />
    559 <col width="10%" />
    560 <col width="9%" />
    561 <col width="9%" />
    562 <col width="9%" />
    563 <col width="9%" />
    564 </colgroup>
    565 <thead valign="bottom">
    566 <tr class="row-odd"><th class="head"><strong>Message #</strong></th>
    567 <th class="head"><strong>Description</strong></th>
    568 <th class="head"><strong>GNSS</strong></th>
    569 <th class="head"><strong>RTCM</strong>
    570 <strong>Proposal</strong></th>
    571 <th class="head"><strong>Decoding</strong></th>
    572 <th class="head"><strong>RINEX/SP3</strong></th>
    573 <th class="head"><strong>Encoding</strong></th>
    574 <th class="head"><strong>Upload</strong></th>
    575 <th class="head"><strong>PPP</strong></th>
    576 <th class="head"><strong>Combin.</strong></th>
    577 </tr>
    578 </thead>
    579 <tbody valign="top">
    580 <tr class="row-even"><td colspan="10"><strong>General</strong></td>
    581 </tr>
    582 <tr class="row-odd"><td>1005,1006</td>
    583 <td>Station</td>
    584 <td>&nbsp;</td>
    585 <td>&nbsp;</td>
    586 <td>x</td>
    587 <td>&nbsp;</td>
    588 <td>&nbsp;</td>
    589 <td>&nbsp;</td>
    590 <td>&nbsp;</td>
    591 <td>&nbsp;</td>
    592 </tr>
    593 <tr class="row-even"><td>1007,1008</td>
    594 <td>Antenna</td>
    595 <td>&nbsp;</td>
    596 <td>&nbsp;</td>
    597 <td>x</td>
    598 <td>&nbsp;</td>
    599 <td>&nbsp;</td>
    600 <td>&nbsp;</td>
    601 <td>&nbsp;</td>
    602 <td>&nbsp;</td>
    603 </tr>
    604 <tr class="row-odd"><td>1033</td>
    605 <td>Receiver, Antenna</td>
    606 <td>&nbsp;</td>
    607 <td>&nbsp;</td>
    608 <td>x</td>
    609 <td>&nbsp;</td>
    610 <td>&nbsp;</td>
    611 <td>&nbsp;</td>
    612 <td>&nbsp;</td>
    613 <td>&nbsp;</td>
    614 </tr>
    615 <tr class="row-even"><td>1013</td>
    616 <td>System Parameters</td>
    617 <td>&nbsp;</td>
    618 <td>&nbsp;</td>
    619 <td>x</td>
    620 <td>&nbsp;</td>
    621 <td>&nbsp;</td>
    622 <td>&nbsp;</td>
    623 <td>&nbsp;</td>
    624 <td>&nbsp;</td>
    625 </tr>
    626 <tr class="row-odd"><td colspan="10"><strong>Navigation</strong></td>
    627 </tr>
    628 <tr class="row-even"><td>1019</td>
    629 <td>Ephemeris</td>
    630 <td>GPS</td>
    631 <td>&nbsp;</td>
    632 <td>x</td>
    633 <td>x</td>
    634 <td>x</td>
    635 <td>x</td>
    636 <td>x</td>
    637 <td>x</td>
    638 </tr>
    639 <tr class="row-odd"><td>1020</td>
    640 <td>Ephemeris</td>
    641 <td>GLONASS</td>
    642 <td>&nbsp;</td>
    643 <td>x</td>
    644 <td>x</td>
    645 <td>x</td>
    646 <td>x</td>
    647 <td>x</td>
    648 <td>x</td>
    649 </tr>
    650 <tr class="row-even"><td>1045</td>
    651 <td>Ephemeris</td>
    652 <td>Galileo F/Nav</td>
    653 <td>&nbsp;</td>
    654 <td>x</td>
    655 <td>x</td>
    656 <td>x</td>
    657 <td>x</td>
    658 <td>&nbsp;</td>
    659 <td>&nbsp;</td>
    660 </tr>
    661 <tr class="row-odd"><td>1046</td>
    662 <td>Ephemeris</td>
    663 <td>Galileo I/Nav</td>
    664 <td>&nbsp;</td>
    665 <td>x</td>
    666 <td>x</td>
    667 <td>x</td>
    668 <td>x</td>
    669 <td>x</td>
    670 <td>&nbsp;</td>
    671 </tr>
    672 <tr class="row-even"><td>1043</td>
    673 <td>Ephemeris</td>
    674 <td>SBAS</td>
    675 <td>x</td>
    676 <td>x</td>
    677 <td>x</td>
    678 <td>x</td>
    679 <td>x</td>
    680 <td>&nbsp;</td>
    681 <td>&nbsp;</td>
    682 </tr>
    683 <tr class="row-odd"><td>1044</td>
    684 <td>Ephemeris</td>
    685 <td>QZSS</td>
    686 <td>&nbsp;</td>
    687 <td>x</td>
    688 <td>x</td>
    689 <td>x</td>
    690 <td>x</td>
    691 <td>&nbsp;</td>
    692 <td>&nbsp;</td>
    693 </tr>
    694 <tr class="row-even"><td>63</td>
    695 <td>Ephemeris</td>
    696 <td>BDS</td>
    697 <td>x</td>
    698 <td>x</td>
    699 <td>x</td>
    700 <td>x</td>
    701 <td>x</td>
    702 <td>x</td>
    703 <td>&nbsp;</td>
    704 </tr>
    705 <tr class="row-odd"><td colspan="10"><strong>Observation</strong></td>
    706 </tr>
    707 <tr class="row-even"><td>1001-4</td>
    708 <td>Conventional Messages</td>
    709 <td>GPS</td>
    710 <td>&nbsp;</td>
    711 <td>x</td>
    712 <td>x</td>
    713 <td>&nbsp;</td>
    714 <td>&nbsp;</td>
    715 <td>x</td>
    716 <td>&nbsp;</td>
    717 </tr>
    718 <tr class="row-odd"><td>1009-12</td>
    719 <td>Conventional Messages</td>
    720 <td>GLONASS</td>
    721 <td>&nbsp;</td>
    722 <td>x</td>
    723 <td>x</td>
    724 <td>&nbsp;</td>
    725 <td>&nbsp;</td>
    726 <td>x</td>
    727 <td>&nbsp;</td>
    728 </tr>
    729 <tr class="row-even"><td colspan="10"><strong>Observation</strong></td>
    730 </tr>
    731 <tr class="row-odd"><td>1071-77</td>
    732 <td>Multiple Signal Message</td>
    733 <td>GPS</td>
    734 <td>&nbsp;</td>
    735 <td>x</td>
    736 <td>x</td>
    737 <td>&nbsp;</td>
    738 <td>&nbsp;</td>
    739 <td>x</td>
    740 <td>&nbsp;</td>
    741 </tr>
    742 <tr class="row-even"><td>1081-87</td>
    743 <td>Multiple Signal Message</td>
    744 <td>GLONASS</td>
    745 <td>&nbsp;</td>
    746 <td>x</td>
    747 <td>x</td>
    748 <td>&nbsp;</td>
    749 <td>&nbsp;</td>
    750 <td>x</td>
    751 <td>&nbsp;</td>
    752 </tr>
    753 <tr class="row-odd"><td>1091-97</td>
    754 <td>Multiple Signal Message</td>
    755 <td>Galileo</td>
    756 <td>&nbsp;</td>
    757 <td>x</td>
    758 <td>x</td>
    759 <td>&nbsp;</td>
    760 <td>&nbsp;</td>
    761 <td>x</td>
    762 <td>&nbsp;</td>
    763 </tr>
    764 <tr class="row-even"><td>1101-07</td>
    765 <td>Multiple Signal Message</td>
    766 <td>SBAS</td>
    767 <td>x</td>
    768 <td>x</td>
    769 <td>x</td>
    770 <td>&nbsp;</td>
    771 <td>&nbsp;</td>
    772 <td>&nbsp;</td>
    773 <td>&nbsp;</td>
    774 </tr>
    775 <tr class="row-odd"><td>1111-17</td>
    776 <td>Multiple Signal Message</td>
    777 <td>QZSS</td>
    778 <td>&nbsp;</td>
    779 <td>x</td>
    780 <td>x</td>
    781 <td>&nbsp;</td>
    782 <td>&nbsp;</td>
    783 <td>&nbsp;</td>
    784 <td>&nbsp;</td>
    785 </tr>
    786 <tr class="row-even"><td>1121-27</td>
    787 <td>Multiple Signal Message</td>
    788 <td>BDS</td>
    789 <td>&nbsp;</td>
    790 <td>x</td>
    791 <td>x</td>
    792 <td>&nbsp;</td>
    793 <td>&nbsp;</td>
    794 <td>x</td>
    795 <td>&nbsp;</td>
    796 </tr>
    797 <tr class="row-odd"><td colspan="10"><strong>SSR I</strong></td>
    798 </tr>
    799 <tr class="row-even"><td>1057</td>
    800 <td>Orbit Corrections</td>
    801 <td>GPS</td>
    802 <td>&nbsp;</td>
    803 <td>x</td>
    804 <td>x</td>
    805 <td>x</td>
    806 <td>x</td>
    807 <td>x</td>
    808 <td>x</td>
    809 </tr>
    810 <tr class="row-odd"><td>1063</td>
    811 <td>Orbit Corrections</td>
    812 <td>GLONASS</td>
    813 <td>&nbsp;</td>
    814 <td>x</td>
    815 <td>x</td>
    816 <td>x</td>
    817 <td>x</td>
    818 <td>x</td>
    819 <td>x</td>
    820 </tr>
    821 <tr class="row-even"><td>1240</td>
    822 <td>Orbit Corrections</td>
    823 <td>Galileo</td>
    824 <td>x</td>
    825 <td>x</td>
    826 <td>x</td>
    827 <td>x</td>
    828 <td>x</td>
    829 <td>x</td>
    830 <td>&nbsp;</td>
    831 </tr>
    832 <tr class="row-odd"><td>1246</td>
    833 <td>Orbit Corrections</td>
    834 <td>SBAS</td>
    835 <td>x</td>
    836 <td>x</td>
    837 <td>x</td>
    838 <td>x</td>
    839 <td>x</td>
    840 <td>&nbsp;</td>
    841 <td>&nbsp;</td>
    842 </tr>
    843 <tr class="row-even"><td>1252</td>
    844 <td>Orbit Corrections</td>
    845 <td>QZSS</td>
    846 <td>x</td>
    847 <td>x</td>
    848 <td>x</td>
    849 <td>x</td>
    850 <td>x</td>
    851 <td>&nbsp;</td>
    852 <td>&nbsp;</td>
    853 </tr>
    854 <tr class="row-odd"><td>1258</td>
    855 <td>Orbit Corrections</td>
    856 <td>BDS</td>
    857 <td>x</td>
    858 <td>x</td>
    859 <td>x</td>
    860 <td>x</td>
    861 <td>x</td>
    862 <td>x</td>
    863 <td>&nbsp;</td>
    864 </tr>
    865 <tr class="row-even"><td>1058</td>
    866 <td>Clock Corrections</td>
    867 <td>GPS</td>
    868 <td>&nbsp;</td>
    869 <td>x</td>
    870 <td>x</td>
    871 <td>x</td>
    872 <td>x</td>
    873 <td>x</td>
    874 <td>x</td>
    875 </tr>
    876 <tr class="row-odd"><td>1064</td>
    877 <td>Clock Corrections</td>
    878 <td>GLONASS</td>
    879 <td>&nbsp;</td>
    880 <td>x</td>
    881 <td>x</td>
    882 <td>x</td>
    883 <td>x</td>
    884 <td>x</td>
    885 <td>x</td>
    886 </tr>
    887 <tr class="row-even"><td>1241</td>
    888 <td>Clock Corrections</td>
    889 <td>Galileo</td>
    890 <td>x</td>
    891 <td>x</td>
    892 <td>x</td>
    893 <td>x</td>
    894 <td>x</td>
    895 <td>x</td>
    896 <td>&nbsp;</td>
    897 </tr>
    898 <tr class="row-odd"><td>1247</td>
    899 <td>Clock Corrections</td>
    900 <td>SBAS</td>
    901 <td>x</td>
    902 <td>x</td>
    903 <td>x</td>
    904 <td>x</td>
    905 <td>x</td>
    906 <td>&nbsp;</td>
    907 <td>&nbsp;</td>
    908 </tr>
    909 <tr class="row-even"><td>1253</td>
    910 <td>Clock Corrections</td>
    911 <td>QZSS</td>
    912 <td>x</td>
    913 <td>x</td>
    914 <td>x</td>
    915 <td>x</td>
    916 <td>x</td>
    917 <td>&nbsp;</td>
    918 <td>&nbsp;</td>
    919 </tr>
    920 <tr class="row-odd"><td>1259</td>
    921 <td>Clock Corrections</td>
    922 <td>BDS</td>
    923 <td>x</td>
    924 <td>x</td>
    925 <td>x</td>
    926 <td>x</td>
    927 <td>x</td>
    928 <td>x</td>
    929 <td>&nbsp;</td>
    930 </tr>
    931 <tr class="row-even"><td>1059</td>
    932 <td>Code Biases</td>
    933 <td>GPS</td>
    934 <td>&nbsp;</td>
    935 <td>x</td>
    936 <td>x</td>
    937 <td>x</td>
    938 <td>x</td>
    939 <td>x</td>
    940 <td>&nbsp;</td>
    941 </tr>
    942 <tr class="row-odd"><td>1065</td>
    943 <td>Code Biases</td>
    944 <td>GLONASS</td>
    945 <td>&nbsp;</td>
    946 <td>x</td>
    947 <td>x</td>
    948 <td>x</td>
    949 <td>x</td>
    950 <td>x</td>
    951 <td>&nbsp;</td>
    952 </tr>
    953 <tr class="row-even"><td>1242</td>
    954 <td>Code Biases</td>
    955 <td>Galileo</td>
    956 <td>x</td>
    957 <td>x</td>
    958 <td>x</td>
    959 <td>x</td>
    960 <td>x</td>
    961 <td>x</td>
    962 <td>&nbsp;</td>
    963 </tr>
    964 <tr class="row-odd"><td>1248</td>
    965 <td>Code Biases</td>
    966 <td>SBAS</td>
    967 <td>x</td>
    968 <td>x</td>
    969 <td>x</td>
    970 <td>x</td>
    971 <td>x</td>
    972 <td>&nbsp;</td>
    973 <td>&nbsp;</td>
    974 </tr>
    975 <tr class="row-even"><td>1254</td>
    976 <td>Code Biases</td>
    977 <td>QZSS</td>
    978 <td>x</td>
    979 <td>x</td>
    980 <td>x</td>
    981 <td>x</td>
    982 <td>x</td>
    983 <td>&nbsp;</td>
    984 <td>&nbsp;</td>
    985 </tr>
    986 <tr class="row-odd"><td>1260</td>
    987 <td>Code Biases</td>
    988 <td>BDS</td>
    989 <td>x</td>
    990 <td>x</td>
    991 <td>x</td>
    992 <td>x</td>
    993 <td>x</td>
    994 <td>x</td>
    995 <td>&nbsp;</td>
    996 </tr>
    997 <tr class="row-even"><td>1061, 1062</td>
    998 <td>User Range Accuracy, HR</td>
    999 <td>GPS</td>
    1000 <td>&nbsp;</td>
    1001 <td>x</td>
    1002 <td>&nbsp;</td>
    1003 <td>&nbsp;</td>
    1004 <td>&nbsp;</td>
    1005 <td>&nbsp;</td>
    1006 <td>&nbsp;</td>
    1007 </tr>
    1008 <tr class="row-odd"><td>1067, 1068</td>
    1009 <td>User Range Accuracy, HR</td>
    1010 <td>GLONASS</td>
    1011 <td>&nbsp;</td>
    1012 <td>x</td>
    1013 <td>&nbsp;</td>
    1014 <td>&nbsp;</td>
    1015 <td>&nbsp;</td>
    1016 <td>&nbsp;</td>
    1017 <td>&nbsp;</td>
    1018 </tr>
    1019 <tr class="row-even"><td>1244, 1245</td>
    1020 <td>User Range Accuracy, HR</td>
    1021 <td>Galileo</td>
    1022 <td>x</td>
    1023 <td>x</td>
    1024 <td>&nbsp;</td>
    1025 <td>&nbsp;</td>
    1026 <td>&nbsp;</td>
    1027 <td>&nbsp;</td>
    1028 <td>&nbsp;</td>
    1029 </tr>
    1030 <tr class="row-odd"><td>1250, 1251</td>
    1031 <td>User Range Accuracy, HR</td>
    1032 <td>SBAS</td>
    1033 <td>x</td>
    1034 <td>x</td>
    1035 <td>&nbsp;</td>
    1036 <td>&nbsp;</td>
    1037 <td>&nbsp;</td>
    1038 <td>&nbsp;</td>
    1039 <td>&nbsp;</td>
    1040 </tr>
    1041 <tr class="row-even"><td>1256, 1257</td>
    1042 <td>User Range Accuracy, HR</td>
    1043 <td>QZSS</td>
    1044 <td>x</td>
    1045 <td>x</td>
    1046 <td>&nbsp;</td>
    1047 <td>&nbsp;</td>
    1048 <td>&nbsp;</td>
    1049 <td>&nbsp;</td>
    1050 <td>&nbsp;</td>
    1051 </tr>
    1052 <tr class="row-odd"><td>1262, 1263</td>
    1053 <td>User Range Accuracy, HR</td>
    1054 <td>BDS</td>
    1055 <td>x</td>
    1056 <td>x</td>
    1057 <td>&nbsp;</td>
    1058 <td>&nbsp;</td>
    1059 <td>&nbsp;</td>
    1060 <td>&nbsp;</td>
    1061 <td>&nbsp;</td>
    1062 </tr>
    1063 <tr class="row-even"><td>1060</td>
    1064 <td>Comb. Orbits &amp; Clocks</td>
    1065 <td>GPS</td>
    1066 <td>&nbsp;</td>
    1067 <td>x</td>
    1068 <td>x</td>
    1069 <td>x</td>
    1070 <td>x</td>
    1071 <td>x</td>
    1072 <td>x</td>
    1073 </tr>
    1074 <tr class="row-odd"><td>1066</td>
    1075 <td>Comb. Orbits &amp; Clocks</td>
    1076 <td>GLONASS</td>
    1077 <td>&nbsp;</td>
    1078 <td>x</td>
    1079 <td>x</td>
    1080 <td>x</td>
    1081 <td>x</td>
    1082 <td>x</td>
    1083 <td>x</td>
    1084 </tr>
    1085 <tr class="row-even"><td>1243</td>
    1086 <td>Comb. Orbits &amp; Clocks</td>
    1087 <td>Galileo</td>
    1088 <td>x</td>
    1089 <td>x</td>
    1090 <td>x</td>
    1091 <td>x</td>
    1092 <td>x</td>
    1093 <td>x</td>
    1094 <td>&nbsp;</td>
    1095 </tr>
    1096 <tr class="row-odd"><td>1249</td>
    1097 <td>Comb. Orbits &amp; Clocks</td>
    1098 <td>SBAS</td>
    1099 <td>x</td>
    1100 <td>x</td>
    1101 <td>x</td>
    1102 <td>x</td>
    1103 <td>x</td>
    1104 <td>&nbsp;</td>
    1105 <td>&nbsp;</td>
    1106 </tr>
    1107 <tr class="row-even"><td>1255</td>
    1108 <td>Comb. Orbits &amp; Clocks</td>
    1109 <td>QZSS</td>
    1110 <td>x</td>
    1111 <td>x</td>
    1112 <td>x</td>
    1113 <td>x</td>
    1114 <td>x</td>
    1115 <td>&nbsp;</td>
    1116 <td>&nbsp;</td>
    1117 </tr>
    1118 <tr class="row-odd"><td>1261</td>
    1119 <td>Comb. Orbits &amp; Clocks</td>
    1120 <td>BDS</td>
    1121 <td>x</td>
    1122 <td>x</td>
    1123 <td>x</td>
    1124 <td>x</td>
    1125 <td>x</td>
    1126 <td>x</td>
    1127 <td>&nbsp;</td>
    1128 </tr>
    1129 <tr class="row-even"><td colspan="10"><strong>SSR II</strong></td>
    1130 </tr>
    1131 <tr class="row-odd"><td>1264</td>
    1132 <td>VTEC</td>
    1133 <td>GNSS</td>
    1134 <td>x</td>
    1135 <td>x</td>
    1136 <td>x</td>
    1137 <td>x</td>
    1138 <td>x</td>
    1139 <td>&nbsp;</td>
    1140 <td>&nbsp;</td>
    1141 </tr>
    1142 <tr class="row-even"><td>1265</td>
    1143 <td>Phase Biases</td>
    1144 <td>GPS</td>
    1145 <td>x</td>
    1146 <td>x</td>
    1147 <td>x</td>
    1148 <td>x</td>
    1149 <td>x</td>
    1150 <td>&nbsp;</td>
    1151 <td>&nbsp;</td>
    1152 </tr>
    1153 <tr class="row-odd"><td>1266</td>
    1154 <td>Phase Biases</td>
    1155 <td>GLONASS</td>
    1156 <td>x</td>
    1157 <td>x</td>
    1158 <td>x</td>
    1159 <td>x</td>
    1160 <td>x</td>
    1161 <td>&nbsp;</td>
    1162 <td>&nbsp;</td>
    1163 </tr>
    1164 <tr class="row-even"><td>1267</td>
    1165 <td>Phase Biases</td>
    1166 <td>Galileo</td>
    1167 <td>x</td>
    1168 <td>x</td>
    1169 <td>x</td>
    1170 <td>x</td>
    1171 <td>x</td>
    1172 <td>&nbsp;</td>
    1173 <td>&nbsp;</td>
    1174 </tr>
    1175 <tr class="row-odd"><td>1268</td>
    1176 <td>Phase Biases</td>
    1177 <td>SBAS</td>
    1178 <td>x</td>
    1179 <td>x</td>
    1180 <td>x</td>
    1181 <td>x</td>
    1182 <td>x</td>
    1183 <td>&nbsp;</td>
    1184 <td>&nbsp;</td>
    1185 </tr>
    1186 <tr class="row-even"><td>1269</td>
    1187 <td>Phase Biases</td>
    1188 <td>QZSS</td>
    1189 <td>x</td>
    1190 <td>x</td>
    1191 <td>x</td>
    1192 <td>x</td>
    1193 <td>x</td>
    1194 <td>&nbsp;</td>
    1195 <td>&nbsp;</td>
    1196 </tr>
    1197 <tr class="row-odd"><td>1270</td>
    1198 <td>Phase Biases</td>
    1199 <td>BDS</td>
    1200 <td>x</td>
    1201 <td>x</td>
    1202 <td>x</td>
    1203 <td>x</td>
    1204 <td>x</td>
    1205 <td>&nbsp;</td>
    1206 <td>&nbsp;</td>
    1207 </tr>
    1208 </tbody>
     471The table indicates if a message implementation in BNC could so far only be based on a 'RTCM Proposal'.
     472</p>
     473<p><u>Table 1:</u> Status of RTCM Version 3 message implementations in BNC supporting various GNSS systems</p>
     474<p></p>
     475<table border="1" rules="rows" frame="box" bgcolor="#FFF5EE" style="font-size:13">
     476
     477<tr align="center"><td><b>Message<br>Type #</b></td> <td><b>Description</b></td> <td><b>GNSS<br>System</b></td> <td><b>RTCM<br>Proposal&nbsp;</b></td> <td><b>Decoding&nbsp;</b></td> <td><b>&nbsp;RINEX/&nbsp;<br>&nbsp;SP3</b></td> <td><b>Encoding&nbsp;</b></td> <td><b>Upload&nbsp;</b></td> <td><b>&nbsp;PPP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</b></td> <td><b>Combin.&nbsp;</b></td> </tr>
     478
     479<tr align="center"> <td><b><br>General</b></td> <td></td>             <td></td>              <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     480<tr align="center"> <td>1005,1006</td> <td>Station</td>               <td> </td>             <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     481<tr align="center"> <td>1007,1008</td> <td>Antenna</td>               <td> </td>             <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     482<tr align="center"> <td>1033</td>      <td>Receiver, Antenna</td>     <td> </td>             <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     483<tr align="center"> <td>1013</td>      <td>System Parameters</td>     <td> </td>             <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     484
     485<tr align="center"> <td><b><br>Navigation</b></td> <td></td>          <td></td>              <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     486<tr align="center"> <td>1019</td> <td>Ephemeris</td>                  <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     487<tr align="center"> <td>1020</td> <td>Ephemeris</td>                  <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     488<tr align="center"> <td>1045</td> <td>Ephemeris</td>                  <td>Galileo F/Nav</td> <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     489<tr align="center"> <td>1046</td> <td>Ephemeris</td>                  <td>Galileo I/Nav</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     490<tr align="center"> <td>1043</td> <td>Ephemeris</td>                  <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     491<tr align="center"> <td>1044</td> <td>Ephemeris</td>                  <td>QZSS</td>          <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     492<tr align="center"> <td>63</td>   <td>Ephemeris</td>                  <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     493
     494<tr align="center"> <td><b><br>Observation</b></td> <td></td>         <td></td>              <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     495<tr align="center"> <td>1001-4</td>  <td>Conventional Messages</td>   <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     496<tr align="center"> <td>1009-12</td> <td>Conventional Messages</td>   <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     497
     498<tr align="center"> <td><b><br>Observation</b></td> <td></td>         <td></td>              <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     499<tr align="center"> <td>1071-77</td> <td>Multiple Signal Message</td> <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     500<tr align="center"> <td>1081-87</td> <td>Multiple Signal Message</td> <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     501<tr align="center"> <td>1091-97</td> <td>Multiple Signal Message</td> <td>Galileo</td>       <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     502<tr align="center"> <td>1101-07</td> <td>Multiple Signal Message</td> <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     503<tr align="center"> <td>1111-17</td> <td>Multiple Signal Message</td> <td>QZSS</td>          <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     504<tr align="center"> <td>1121-27</td> <td>Multiple Signal Message</td> <td>BDS</td>           <td> </td> <td>x</td> <td>x</td> <td> </td> <td> </td> <td>x</td> <td> </td> </tr>
     505
     506<tr align="center"> <td><b><br>SSR I</b></td> <td></td>               <td></td>              <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     507<tr align="center"> <td>1057</td> <td>Orbit Corrections</td>          <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     508<tr align="center"> <td>1063</td> <td>Orbit Corrections</td>          <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     509<tr align="center"> <td>1240</td> <td>Orbit Corrections</td>          <td>Galileo</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     510<tr align="center"> <td>1246</td> <td>Orbit Corrections</td>          <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     511<tr align="center"> <td>1252</td> <td>Orbit Corrections</td>          <td>QZSS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     512<tr align="center"> <td>1258</td> <td>Orbit Corrections</td>          <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     513
     514<tr align="center"> <td>1058</td> <td>Clock Corrections</td>          <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     515<tr align="center"> <td>1064</td> <td>Clock Corrections</td>          <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     516<tr align="center"> <td>1241</td> <td>Clock Corrections</td>          <td>Galileo</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     517<tr align="center"> <td>1247</td> <td>Clock Corrections</td>          <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     518<tr align="center"> <td>1253</td> <td>Clock Corrections</td>          <td>QZSS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     519<tr align="center"> <td>1259</td> <td>Clock Corrections</td>          <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     520
     521<tr align="center"> <td>1059</td> <td>Code Biases</td>                <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     522<tr align="center"> <td>1065</td> <td>Code Biases</td>                <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     523<tr align="center"> <td>1242</td> <td>Code Biases</td>                <td>Galileo</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     524<tr align="center"> <td>1248</td> <td>Code Biases</td>                <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     525<tr align="center"> <td>1254</td> <td>Code Biases</td>                <td>QZSS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     526<tr align="center"> <td>1260</td> <td>Code Biases</td>                <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     527
     528<tr align="center"> <td>1061, 1062</td> <td>User Range Accuracy, HR&nbsp;</td> <td>GPS</td>        <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     529<tr align="center"> <td>1067, 1068</td> <td>User Range Accuracy, HR&nbsp;</td> <td>GLONASS</td>    <td> </td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     530<tr align="center"> <td>1244, 1245</td> <td>User Range Accuracy, HR&nbsp;</td> <td>Galileo</td>    <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     531<tr align="center"> <td>1250, 1251</td> <td>User Range Accuracy, HR&nbsp;</td> <td>SBAS</td>       <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     532<tr align="center"> <td>1256, 1257</td> <td>User Range Accuracy, HR&nbsp;</td> <td>QZSS</td>       <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     533<tr align="center"> <td>1262, 1263</td> <td>User Range Accuracy, HR&nbsp;</td> <td>BDS</td>        <td>x</td> <td>x</td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     534
     535<tr align="center"> <td>1060</td> <td>Comb. Orbits & Clocks</td>      <td>GPS</td>           <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     536<tr align="center"> <td>1066</td> <td>Comb. Orbits & Clocks</td>      <td>GLONASS</td>       <td> </td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> </tr>
     537<tr align="center"> <td>1243</td> <td>Comb. Orbits & Clocks</td>      <td>Galileo</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     538<tr align="center"> <td>1249</td> <td>Comb. Orbits & Clocks</td>      <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     539<tr align="center"> <td>1255</td> <td>Comb. Orbits & Clocks</td>      <td>QZSS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     540<tr align="center"> <td>1261</td> <td>Comb. Orbits & Clocks</td>      <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> </tr>
     541
     542<tr align="center"> <td><b><br>SSR II</b></td> <td></td>               <td></td>             <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> <td> </td> </tr>
     543<tr align="center"> <td>1264</td> <td>VTEC</td>                       <td>GNSS </td>         <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     544<tr align="center"> <td>1265</td> <td>Phase Biases</td>               <td>GPS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     545<tr align="center"> <td>1266</td> <td>Phase Biases</td>               <td>GLONASS</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     546<tr align="center"> <td>1267</td> <td>Phase Biases</td>               <td>Galileo</td>       <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     547<tr align="center"> <td>1268</td> <td>Phase Biases</td>               <td>SBAS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     548<tr align="center"> <td>1269</td> <td>Phase Biases</td>               <td>QZSS</td>          <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     549<tr align="center"> <td>1270</td> <td>Phase Biases</td>               <td>BDS</td>           <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td>x</td> <td> </td> <td> </td> </tr>
     550
    1209551</table>
    1210 </div>
    1211 <div class="section" id="data-flow">
    1212 <span id="index-4"></span><h3>Data Flow<a class="headerlink" href="#data-flow" title="Permalink to this headline">¶</a></h3>
    1213 <p>BNC can be used in different contexts with varying data flows. Typical real-time communication follows the Ntrip protocol over TCP/IP (probably via SSL), RTSP/RTP or UDP, plain TCP/IP protocol, or serial communication links. Stream content could be observations, ephemeris, satellite orbit/clock products or NMEA sentences.</p>
    1214 <p><a class="reference internal" href="#fig-1"><span class="std std-numref">Fig. 1</span></a> shows a flow chart of BNC connected to a GNSS receiver providing observations via serial or TCP communication link for the purpose of Precise Point Positioning. <a class="reference internal" href="#fig-2"><span class="std std-numref">Fig. 2</span></a> shows the conversion of RTCM streams to RINEX files. <a class="reference internal" href="#fig-3"><span class="std std-numref">Fig. 3</span></a> shows a flow chart of BNC feeding a real-time GNSS engine which estimates precise orbits and clocks. BNC is used in this scenario to encode correctors to RTCM Version 3 and upload them to an Ntrip Broadcaster. <a class="reference internal" href="#fig-4"><span class="std std-numref">Fig. 4</span></a> shows BNC combining several Broadcast Correction streams to disseminate the combination product while saving results in SP3 and Clock RINEX files.</p>
    1215 <div class="figure" id="id3">
    1216 <span id="fig-1"></span><a class="reference internal image-reference" href="_images/fig_1.png"><img alt="_images/fig_1.png" src="_images/fig_1.png" style="width: 649.0px; height: 318.0px;" /></a>
    1217 <p class="caption"><span class="caption-number">Fig. 1 </span><span class="caption-text">Flowchart, BNC connected to a GNSS rover for Precise Point Positioning.</span></p>
    1218 </div>
    1219 <div class="figure" id="id4">
    1220 <span id="fig-2"></span><a class="reference internal image-reference" href="_images/fig_2.png"><img alt="_images/fig_2.png" src="_images/fig_2.png" style="width: 651.0px; height: 327.0px;" /></a>
    1221 <p class="caption"><span class="caption-number">Fig. 2 </span><span class="caption-text">Flowchart, BNC converting RTCM streams to RINEX batches.</span></p>
    1222 </div>
    1223 <div class="figure" id="id5">
    1224 <span id="fig-3"></span><a class="reference internal image-reference" href="_images/fig_3.png"><img alt="_images/fig_3.png" src="_images/fig_3.png" style="width: 648.0px; height: 345.0px;" /></a>
    1225 <p class="caption"><span class="caption-number">Fig. 3 </span><span class="caption-text">Flowchart, BNC feeding a real-time GNSS engine and uploading encoded Broadcast Corrections</span></p>
    1226 </div>
    1227 <div class="figure" id="id6">
    1228 <span id="fig-4"></span><a class="reference internal image-reference" href="_images/fig_4.png"><img alt="_images/fig_4.png" src="_images/fig_4.png" style="width: 650.0px; height: 318.0px;" /></a>
    1229 <p class="caption"><span class="caption-number">Fig. 4 </span><span class="caption-text">Flowchart, BNC combining Broadcast Correction streams.</span></p>
    1230 </div>
    1231 </div>
    1232 <div class="section" id="handling">
    1233 <span id="index-5"></span><h3>Handling<a class="headerlink" href="#handling" title="Permalink to this headline">¶</a></h3>
    1234 <p>Although BNC is mainly a real-time tool to be operated online, it can be run offline</p>
    1235 <ul class="simple">
     552<br>
     553
     554<p><h4>1.3 <a name="introFlow">Data Flow</h4></p>
     555
     556<p>
     557BNC can be used in different contexts with varying data flows. Typical real-time communication follows the Ntrip protocol over TCP/IP (probably via SSL), RTSP/RTP or UDP, plain TCP/IP protocol, or serial communication links. Stream content could be observations, ephemeris, satellite orbit/clock products or NMEA sentences.
     558</p>
     559<p>
     560The first of the following figures shows a flow chart of BNC connected to a GNSS receiver providing observations via serial or TCP communication link for the purpose of Precise Point Positioning. The second figure shows the conversion of RTCM streams to RINEX files. The third figure shows a flow chart of BNC feeding a real-time GNSS engine which estimates precise orbits and clocks. BNC is used in this scenario to encode correctors to RTCM Version 3 and upload them to an Ntrip Broadcaster. The fourth figure shows BNC combining several Broadcast Correction streams to disseminate the combination product while saving results in SP3 and Clock RINEX files.
     561</p>
     562<p><img src="IMG/screenshot10.png"/></p>
     563<p><u>Figure 1:</u> Flowchart, BNC connected to a GNSS rover for Precise Point Positioning</p>
     564
     565<p>
     566</p>
     567<p><img src="IMG/screenshot01.png"/></p>
     568<p><u>Figure 2:</u> Flowchart, BNC converting RTCM streams to RINEX batches</p>
     569
     570<p>
     571</p>
     572<p><img src="IMG/screenshot02.png"/></p>
     573<p><u>Figure 3:</u> Flowchart, BNC feeding a real-time GNSS engine and uploading encoded Broadcast Corrections</p>
     574
     575<p>
     576</p>
     577<p><img src="IMG/screenshot19.png"/></p>
     578<p><u>Figure 4:</u> Flowchart, BNC combining Broadcast Correction streams</p>
     579
     580<p><h4>1.4 <a name="introHandling">Handling</h4></p>
     581<p>
     582Although BNC is mainly a real-time tool to be operated online, it can be run offline
     583<ul>
    1236584<li>To simulate real-time observation situations for debugging purposes;</li>
    1237585<li>For post processing purposes.</li>
    1238586</ul>
    1239 <p>Furthermore, apart from its regular window mode, BNC can be run as a batch/background job in a &#8216;no window&#8217; mode, using processing options from a previously saved configuration or from command line.</p>
    1240 <p>Unless it runs offline, BNC</p>
    1241 <ul class="simple">
     587Furthermore, apart from its regular window mode, BNC can be run as a batch/background job in a 'no window' mode, using processing options from a previously saved configuration or from command line.
     588</p>
     589<p>
     590Unless it runs offline, BNC
     591</p>
     592<ul>
    1242593<li>Requires access to the Internet with a minimum of about 2 to 6 kbits/sec per stream depending on the stream format and the number of visible satellites. You need to make sure that the connection can sustain the required bandwidth;</li>
    1243594<li>Requires the clock of the host computer to be properly synchronized;</li>
    1244595<li>Has the capacity to retrieve hundreds of GNSS data streams simultaneously. Please be aware that such usage may incur a heavy load on the Ntrip Broadcaster side depending on the number of streams requested. We recommend limiting the number of streams where possible to avoid unnecessary workload.</li>
    1245596</ul>
    1246 <p>The main window of BNC shows a &#8216;Top menu bar&#8217; section, a &#8216;Settings&#8217; sections with panels to set processing options, a &#8216;Streams&#8217; section, a section for &#8216;Log&#8217; tabs, and a &#8216;Bottom menu bar&#8217; section <a class="reference internal" href="#fig-5"><span class="std std-numref">(Fig. 5)</span></a>.</p>
    1247 <div class="figure" id="id7">
    1248 <span id="fig-5"></span><a class="reference internal image-reference" href="_images/fig_5.png"><img alt="_images/fig_5.png" src="_images/fig_5.png" style="width: 969.0px; height: 644.0px;" /></a>
    1249 <p class="caption"><span class="caption-number">Fig. 5 </span><span class="caption-text">Sections on BNC&#8217;s main window.</span></p>
    1250 </div>
    1251 <p>Running BNC in interactive mode requires graphics support. This is also required in batch mode when producing plots. Windows and Mac OS X systems always support graphics. However, when using BNC in batch mode on Linux systems for producing plots, you need to make sure that at least a virtual X-Server like &#8216;Xvfb&#8217; is installed and the &#8216;-display&#8217; command line option is used.</p>
    1252 <p>The usual handling of BNC is that you first select a number of streams (&#8216;Add Stream&#8217;). Any stream configured to BNC shows up on the &#8216;Streams&#8217; canvas in the middle of BNC&#8217;s main window. You then go through BNC&#8217;s various configuration panels to set a combination of input, processing and output options before you start the program (&#8216;Start&#8217;). Most configuration panels are dedicated to a certain function of BNC. If the first option field on such a configuration panel is empty, the affected functionality is deactivated.</p>
    1253 <p>Records of BNC&#8217;s activities are shown in the &#8216;Log&#8217; tab which is part of the &#8216;Log&#8217; canvas. The bandwidth consumption per stream, the latency of incoming observations, and a PPP time series for coordinate displacements are also part of that canvas and shown in the &#8216;Throughput&#8217;, &#8216;Latency&#8217; and &#8216;PPP Plot&#8217; tabs.</p>
    1254 <p>Configuration options are usually first set using BNC&#8217;s Graphical User Interface (GUI), then saved in a configuration file. For routine operations in batch mode all of BNC&#8217;s configuration options can be extracted from the configuration file and applied using the program&#8217;s Command Line Interface (CLI).</p>
    1255 </div>
    1256 <div class="section" id="limitations">
    1257 <span id="index-6"></span><h3>Limitations<a class="headerlink" href="#limitations" title="Permalink to this headline">¶</a></h3>
    1258 <ul class="simple">
    1259 <li>In Qt-based desktop environments (like KDE) on Unix/Linux platforms it may happen that you experience a crash of BNC at startup even when running the program in the background using the &#8216;-nw&#8217; option. This is a known bug most likely resulting from an incompatibility of Qt libraries in the environment and in BNC. Entering the command <code class="docutils literal"><span class="pre">unset</span> <span class="pre">SESSION\MANAGER</span></code> before running BNC may help as a work-around.</li>
    1260 <li>Using RTCM Version 3 to produce RINEX files, BNC will properly handle most message types. However, when handling message types 1001, 1003, 1009 and 1011 where the ambiguity field is not set, the output will be no valid RINEX. All values will be stored modulo 299792.458 (speed of light).</li>
    1261 <li>Using RTCM Version 2, BNC will only handle message types 18 and 19 or 20 and 21 together with position and the antenna offset information carried in types 3 and 22. Note that processing carrier phase corrections and pseudo-range corrections contained in message types 20 and 21 needs access to Broadcast Ephemeris. Hence, whenever dealing with message types 20 and 21, make sure that Broadcast Ephemeris become available for BNC through also retrieving at least one RTCM Version 3 stream carrying message types 1019 (GPS ephemeris) and 1020 (GLONASS ephemeris).</li>
    1262 <li>BNC&#8217;s &#8216;Get Table&#8217; function only shows the STR records of a source-table. You can use an Internet browser to download the full source-table content of any Ntrip Broadcaster by simply entering its URL in the form of <a class="reference external" href="http://host:port">http://host:port</a>. Data field number 8 in the NET records may provide information about where to register for an Ntrip Broadcaster account.</li>
    1263 <li>EUREF as well as IGS adhere to an Open Data policy. Streams are made available through Ntrip Broadcasters at www.euref-ip.net, www.igs-ip.net, products.igs-ip.net, and mgex.igs-ip.net free of charge to anyone for any purpose. There is no indication up until now how many users will need to be supported simultaneously. The given situation may develop in such a way that it might become difficult to serve all registered users at the same times. In cases where limited resources on the Ntrip Broadcaster side (software restrictions, bandwidth limitation etc.) dictates, first priority in stream provision will be given to stream providers followed by re-broadcasting activities and real-time analysis centers while access to others might be temporarily denied.</li>
    1264 <li>Once BNC has been started, many of its configuration options cannot be changed as long as it is stopped. See chapter &#8216;Reread Configuration&#8217; for on-the-fly configuration exceptions.</li>
    1265 <li>Drag and drop of configuration files is currently not supported on Mac OS X. On such system you have to start BNC via command line.</li>
    1266 </ul>
    1267 <p class="rubric">Footnotes</p>
    1268 <table class="docutils footnote" frame="void" id="f-rtnet" rules="none">
    1269 <colgroup><col class="label" /><col /></colgroup>
    1270 <tbody valign="top">
    1271 <tr><td class="label"><a class="fn-backref" href="#id1">[1]</a></td><td>RTNet, GPS Solutions Inc., <a class="reference external" href="http://gps-solutions.com">http://gps-solutions.com</a></td></tr>
    1272 </tbody>
    1273 </table>
    1274 </div>
    1275 </div>
    1276 <span id="document-chapter3"></span><div class="section" id="installation">
    1277 <h2>Installation<a class="headerlink" href="#installation" title="Permalink to this headline">¶</a></h2>
    1278 <div class="section" id="pre-compiled-builds">
    1279 <h3>Pre-compiled builds<a class="headerlink" href="#pre-compiled-builds" title="Permalink to this headline">¶</a></h3>
    1280 <p>Precompiled builds of BNC are available for MS Windows, Linux, and Mac OS X systems. They can be downloaded for installation from <a class="reference external" href="http://igs.bkg.bund.de/ntrip/download">http://igs.bkg.bund.de/ntrip/download</a>. Please ensure that you always use the latest released version of the program.</p>
    1281 <p class="rubric">MS Windows Build</p>
    1282 <p>A dynamically compiled shared library build for Mircrosoft Windows systems is provided as Microsoft Installer (MSI) file. MSI files are used for installation, storage, and removal of programs. The BNC files are contained in a MSI package, which is used with the program&#8217;s client-side installer service, an .EXE file, to open and install the program. We used the MinGW Version 4.4.0 compiler to create BNC for Windows. After installation your <cite>bnc.exe</cite> file shows up e.g. under &#8216;All Programs&#8217;.</p>
    1283 <p class="rubric">Linux Build</p>
    1284 <p>Static library and shared library builds for BNC are provided for a selection of Linux distributions. Download the ZIP archive for a version which fits to your Linux system, unzip the archive and run the included BNC binary. A static build would be sufficient in case you do not want BNC to plot PPP results with Google Map (GM) or OpenStreetMap (OSM) maps in the background. GM/OSM usage requires BNC builds from shared libraries.</p>
    1285 <p class="rubric">Mac OS X Build</p>
    1286 <p>A shared library <code class="docutils literal"><span class="pre">Disk</span> <span class="pre">iMaGe</span></code> (DMG) file is provided for BNC on OS X systems; it also comes in a ZIP archive. The DMG file format is used in the Mac for distributing software. Mac install packages appear as a virtual disk drive. After download, when the DMG file icon is double clicked, the virtual drive is &#8216;mounted&#8217; on the desktop. Install BNC by dragging the <code class="docutils literal"><span class="pre">bnc.app</span></code> icon to your <code class="docutils literal"><span class="pre">Applications</span></code> folder. To start BNC, double click on <code class="docutils literal"><span class="pre">Applications/bnc.app</span></code>. You could also start BNC via Command Line Interface (CLI) using command <code class="docutils literal"><span class="pre">Applications/bnc.app/Contents/MacOS/bnc</span></code>.</p>
    1287 </div>
    1288 <div class="section" id="compilation">
    1289 <span id="index-0"></span><h3>Compilation<a class="headerlink" href="#compilation" title="Permalink to this headline">¶</a></h3>
    1290 <p>BNC has been written as Open Source and published under GNU General Public License (GPL). The latest source code can be checked out from Subversion repository <a class="reference external" href="http://software.rtcm-ntrip.org/svn/trunk/BNC">http://software.rtcm-ntrip.org/svn/trunk/BNC</a>. A ZIP archive available from <a class="reference external" href="http://igs.bkg.bund.de/ntrip/download">http://igs.bkg.bund.de/ntrip/download</a> provides the source code for BNC Version 2.12, developed using Qt Version 4.8.5.</p>
    1291 <p>The following describes how you can produce your own builds of BNC on MS Windows, Linux, and Mac systems. It is likely that BNC can also be compiled on other systems where a GNU compiler and Qt Version 4.8.5 or any later version is installed.</p>
    1292 <div class="section" id="static-versus-shared-libraries">
    1293 <span id="index-1"></span><h4>Static versus Shared Libraries<a class="headerlink" href="#static-versus-shared-libraries" title="Permalink to this headline">¶</a></h4>
    1294 <p>You can produce static or shared library builds of BNC. Static builds are sufficient in case you do not want BNC to produce track maps on top of Google Map (GM) or OpenStreetMap (OSM). GM/OSM usage would require the QtWebKit library which can only be part of BNC builds from shared Qt libraries. Hence, having a shared library Qt installation available is a precondition for producing a shared library build of BNC.</p>
    1295 </div>
    1296 <div class="section" id="ms-windows-systems-shared-library">
    1297 <span id="index-2"></span><h4>MS Windows Systems, Shared Library<a class="headerlink" href="#ms-windows-systems-shared-library" title="Permalink to this headline">¶</a></h4>
    1298 <p>This explains how to install a shared Qt 4.8.5 library on MS Windows systems to then create your own shared build of BNC.</p>
    1299 <p>Supposing that &#8216;Secure Socket Layer (SSL)&#8217; is not available on you system, you should install OpenSSL libraries in <code class="docutils literal"><span class="pre">C:\OpenSSL-Win32</span></code>. They are available e.g. from <a class="reference external" href="http://igs.bkg.bund.de/root_ftp/NTRIP/software/Win32OpenSSL-1_0_1e.exe">http://igs.bkg.bund.de/root_ftp/NTRIP/software/Win32OpenSSL-1_0_1e.exe</a>. See <a class="reference external" href="http://slproweb.com/products/Win32OpenSSL.html">http://slproweb.com/products/Win32OpenSSL.html</a> for other SSL resources. Ignore possibly occurring comments about missing components during installation.</p>
    1300 <ol class="arabic simple">
    1301 <li>Download MinGW compiler Version 4.4.0 e.g. from <a class="reference external" href="http://igs.bkg.bund.de/root_ftp/NTRIP/software/MinGW-gcc440_1.zip">http://igs.bkg.bund.de/root_ftp/NTRIP/software/MinGW-gcc440_1.zip</a>.</li>
    1302 <li>Unzip the ZIP archive and move its contents to a directory <code class="docutils literal"><span class="pre">C:\MinGW</span></code>. Now you can do either (4) or (5, 6, 8, 9, 10). Following (4) is suggested.</li>
    1303 <li>Download file <code class="docutils literal"><span class="pre">qt-win-opensource-4.8.5-mingw.exe</span></code> (317 MB) e.g. from <a class="reference external" href="https://download.qt.io/archive/qt/4.8/4.8.5/">https://download.qt.io/archive/qt/4.8/4.8.5/</a>.</li>
    1304 <li>Execute this file to install a pre-compiled shared Qt library.</li>
    1305 <li>Download file <code class="docutils literal"><span class="pre">qt-everywhere-opensource-src-4.8.5.zip</span></code> (269 MB) e.g. from <a class="reference external" href="https://download.qt.io/archive/qt/4.8/4.8.5/">https://download.qt.io/archive/qt/4.8/4.8.5/</a>.</li>
    1306 <li>Unzip the ZIP archive and move the contents of the contained directory into a directory <code class="docutils literal"><span class="pre">C:\Qt\4.8.5</span></code>.</li>
    1307 <li>Create somewhere a file <code class="docutils literal"><span class="pre">QtEnv.bat</span></code> with the following content</li>
     597</p>
     598
     599<p>
     600The main window of BNC shows a 'Top menu bar' section, a 'Settings' sections with panels to set processing options, a 'Streams' section, a section for 'Log' tabs, and a 'Bottom menu bar' section, see figure below.
     601</p>
     602<p><img src="IMG/screenshot09.png"/></p>
     603<p><u>Figure 5:</u> Sections on BNC's main window</p>
     604
     605<p>
     606Running BNC in interactive mode requires graphics support. This is also
     607required in batch mode when producing plots. Windows and Mac OS X systems always
     608support graphics. However, when using BNC in batch mode on Linux systems for
     609producing plots, you need to make sure that at least a virtual X-Server like
     610'Xvfb' is installed and the '-display' command line option is used.
     611</p>
     612
     613<p>
     614The usual handling of BNC is that you first select a number of streams ('Add Stream'). Any stream configured to BNC shows up on the 'Streams' canvas in the middle of BNC's main window. You then go through BNC's various configuration panels to set a combination of input, processing and output options before you start the program ('Start'). Most configuration panels are dedicated to a certain function of BNC. If the first option field on such a configuration panel is empty, the affected functionality is deactivated.
     615</p>
     616
     617<p>
     618Records of BNC's activities are shown in the 'Log' tab which is part of the 'Log' canvas. The bandwidth consumption per stream, the latency of incoming observations, and a PPP time series for coordinate displacements are also part of that canvas and shown in the 'Throughput', 'Latency' and 'PPP Plot' tabs.
     619</p>
     620
     621<p>
     622Configuration options are usually first set using BNC's Graphical User Interface (GUI), then saved in a configuration file. For routine operations in batch mode all of BNC's configuration options can be extracted from the configuration file and applied using the program's Command Line Interface (CLI).
     623</p>
     624
     625<p><h4>1.5 <a name="introInst">Installation</h4></p>
     626<p>
     627Precompiled builds of BNC are available for MS Windows, Linux, and Mac OS X systems. They can be downloaded for installation from <u>http://igs.bkg.bund.de/ntrip/download</u>. Please ensure that you always use the latest released version of the program.
     628</p>
     629<p>
     630<u>MS Windows Build:</u> A dynamically compiled shared library build for Mircrosoft Windows systems is provided as Microsoft Installer (MSI) file. MSI files are used for installation, storage, and removal of programs. The BNC files are contained in a MSI package, which is used with the program's client-side installer service, an .EXE file, to open and install the program. We used the MinGW Version 4.4.0 compiler to create BNC for Windows. After installation your 'bnc.exe' file shows up e.g. under 'All Programs'.
     631</p>
     632
     633<p>
     634<u>Linux Build:</u> Static library and shared library builds for BNC are provided for a selection of Linux distributions. Download the ZIP archive for a version which fits to your Linux system, unzip the archive and run the included BNC binary. A static build would be sufficient in case you <u>do not want</u> BNC to plot PPP results with Google Map (GM) or OpenStreetMap (OSM) maps in the background. GM/OSM usage requires BNC builds from shared libraries.
     635</p>
     636
     637<p>
     638<u>Mac OS X Build:</u>
     639A shared library 'Disk iMaGe' (DMG) file is provided for BNC on OS X systems; it also comes in a ZIP archive. The DMG file format is used in the Mac for distributing software. Mac install packages appear as a virtual disk drive. After download, when the DMG file icon is double clicked, the virtual drive is 'mounted' on the desktop. Install BNC by dragging the 'bnc.app' icon to your '/Applications' folder. To start BNC, double click on '/Applications/bnc.app'. You could also start BNC via Command Line Interface (CLI) using command '/Applications/bnc.app/Contents/MacOS/bnc'.
     640</p>
     641
     642<p><h4>1.5.1 <a name="introCompile">Compilation</h4></p>
     643
     644<p>
     645BNC has been written as Open Source and published under GNU General Public License (GPL). The latest source code can be checked out from Subversion repository <u>http://software.rtcm-ntrip.org/svn/trunk/BNC</u>. A ZIP archive available from <u>http://igs.bkg.bund.de/ntrip/download</u> provides the source code for BNC Version 2.12.0, developed using Qt Version 4.8.5.
     646</p>
     647<p>The following describes how you can produce your own builds of BNC on MS Windows, Linux, and Mac systems. It is likely that BNC can also be compiled on other systems where a GNU compiler and Qt Version 4.8.5 or any later version is installed.
     648</p>
     649
     650<p><b>Static versus Shared Libraries</b><br>
     651You can produce static or shared library builds of BNC. <u>Static</u> builds are sufficient in case you do not want BNC to produce track maps on top of Google Map (GM) or OpenStreetMap (OSM). GM/OSM usage would require the QtWebKit library which can only be part of BNC builds from <u>shared</u> Qt libraries. Hence, having a shared library Qt installation available is a precondition for producing a shared library build of BNC.
     652</p>
     653
     654<p><b>MS Windows Systems, Shared Library</b><br>
     655This explains how to install a shared Qt 4.8.5 library on MS Windows systems to then create your own shared build of BNC.
     656</p>
     657
     658<ol type=f>
     659<li>Supposing that 'Secure Socket Layer (SSL)' is not available on you system, you should install OpenSSL libraries in C:\OpenSSL-Win32. They are available e.g. from <u>http://igs.bkg.bund.de/root_ftp/NTRIP/software/Win32OpenSSL-1_0_1e.exe</u>. See <u>http://slproweb.com/products/Win32OpenSSL.html</u> for other SSL resources. Ignore possibly occurring comments about missing components during installation.</li>
     660
     661<li>Download MinGW compiler Version 4.4.0 e.g. from <u>http://igs.bkg.bund.de/root_ftp/NTRIP/software/MinGW-gcc440_1.zip</u></li>
     662
     663<li>Unzip the ZIP archive and move its contents to a directory C:\MinGW. Now you can do either (4) or (5, 6, 8, 9, 10). Following (4) is suggested.</li>
     664
     665<li>Download file 'qt-win-opensource-4.8.5-mingw.exe' (317 MB) e.g. from <u>https://download.qt.io/archive/qt/4.8/4.8.5/</u>. Execute this file to install a pre-compiled shared Qt library.</li>
     666     
     667<li>Download file 'qt-everywhere-opensource-src-4.8.5.zip' (269 MB) e.g. from <u>https://download.qt.io/archive/qt/4.8/4.8.5/</u></li>
     668
     669<li>Unzip the ZIP archive and move the contents of the contained directory into a directory C:\Qt\4.8.5.</li>
     670
     671<li>Create somewhere a file QtEnv.bat with the following content:
     672<pre>
     673   set QTDIR=C:\Qt\4.8.5
     674   set PATH=%PATH%;C:\MinGW\bin;C:\Qt\4.8.5\bin
     675   set QMAKESPEC=C:\Qt\4.8.5\mkspecs\win32-g++
     676</pre></li>
     677
     678<li>Open a command line window and execute file QtEnv.bat</li>
     679
     680<li>Go to directory C:\Qt\4.8.5 and configure Qt using command
     681<pre>
     682   configure -fast -webkit -release -nomake examples -nomake tutorial
     683             -openssl -I C:\OpenSSL-Win32\include
     684</pre></li>
     685
     686<li>Compile Qt using command
     687<pre>
     688   mingw32-make
     689</pre>
     690This may take quite a long time. Don't worry if the compilation process runs into a problem after some time. It is likely that the libraries you require are already generated at that time.<br>
     691Should you want to reconfiguring Qt following steps (8)-(10) you first need to clean the previous configuration using command 'mingw32-make confclean'. Run command 'mingw32-make clean' to delete previously compiled source code.</li>
     692
     693<li>Download latest BNC from SVN repository <u>http://software.rtcm-ntrip.org/svn/trunk/BNC.</u></li>
     694
     695<li>Open command line window and execute file QtEnv.bat, see (7)</li>
     696
     697<li>Go to directory BNC and enter command
     698<pre>
     699   qmake bnc.pro
     700</pre></li>
     701
     702<li>Enter command
     703<pre>
     704   mingw32-make
     705</pre></li>
     706
     707<li>Find binary file bnc.exe in directory named src.</li>
     708
     709<li>Extend the Windows environment variable PATH by C:\Qt\4.8.5\bin.</li>
    1308710</ol>
    1309 <div class="highlight-console"><div class="highlight"><pre><span class="go">set QTDIR=C:\Qt\4.8.5</span>
    1310 <span class="go">set PATH=%PATH%;C:\MinGW\bin;C:\Qt\4.8.5\bin</span>
    1311 <span class="go">set QMAKESPEC=C:\Qt\4.8.5\mkspecs\win32-g++</span>
    1312 </pre></div>
    1313 </div>
    1314 <ol class="arabic simple" start="8">
    1315 <li>Open a command line window and execute file <code class="docutils literal"><span class="pre">QtEnv.bat</span></code>.</li>
    1316 <li>Go to directory Qt directory and configure Qt using command</li>
    1317 </ol>
    1318 <div class="highlight-console"><div class="highlight"><pre><span class="go">cd Qt\4.8.5</span>
    1319 <span class="go">configure -fast -webkit -release -nomake examples -nomake tutorial</span>
    1320 <span class="go">          -openssl -I C:\OpenSSL-Win32\include</span>
    1321 </pre></div>
    1322 </div>
    1323 <ol class="arabic simple" start="10">
    1324 <li>Compile Qt using command <code class="docutils literal"><span class="pre">mingw32-make</span></code>. This may take quite a long time. Don&#8217;t worry if the compilation process runs into a problem after some time. It is likely that the libraries you require are already generated at that time. Should you want to reconfiguring Qt following steps (8)-(10) you first need to clean the previous configuration using command <code class="docutils literal"><span class="pre">mingw32-make</span> <span class="pre">confclean</span></code>. Run command <code class="docutils literal"><span class="pre">mingw32-make</span> <span class="pre">clean</span></code> to delete previously compiled source code.</li>
    1325 <li>Download latest BNC from SVN repository <a class="reference external" href="http://software.rtcm-ntrip.org/svn/trunk/BNC">http://software.rtcm-ntrip.org/svn/trunk/BNC</a>.</li>
    1326 <li>Open command line window and execute file <code class="docutils literal"><span class="pre">QtEnv.bat</span></code>, see (7).</li>
    1327 <li>Go to directory BNC and enter command <code class="docutils literal"><span class="pre">qmake</span> <span class="pre">bnc.pro</span></code>.</li>
    1328 <li>Enter command <code class="docutils literal"><span class="pre">mingw32-make</span></code>.</li>
    1329 <li>Find binary file <code class="docutils literal"><span class="pre">bnc.exe</span></code> in directory named <code class="docutils literal"><span class="pre">src</span></code>.</li>
    1330 <li>Extend the Windows environment variable PATH by <code class="docutils literal"><span class="pre">C:\Qt\4.8.5\bin</span></code>.</li>
    1331 </ol>
    1332 <p>Steps (11)-(15) can be repeated whenever a BNC update becomes available. Running <code class="docutils literal"><span class="pre">bnc.exe</span></code> on a windows system requires (1) when using the NTRIP Version 2s option for stream transfer over TLS/SSL.</p>
    1333 </div>
    1334 <div class="section" id="linux-systems">
    1335 <span id="index-3"></span><h4>Linux Systems<a class="headerlink" href="#linux-systems" title="Permalink to this headline">¶</a></h4>
    1336 <p>On Linux systems you may use the following procedure to install a shared Qt version 4.8.5 library:</p>
    1337 <p>Download file <code class="docutils literal"><span class="pre">qt-everywhere-opensource-src-4.8.5.tar.gz</span></code> (230 MB) available from <a class="reference external" href="https://download.qt.io/archive/qt/4.8/4.8.5/">https://download.qt.io/archive/qt/4.8/4.8.5/</a>. Unzip file, extract tar archive and change to directory <code class="docutils literal"><span class="pre">qt-everywhere-opensource-src-4.8.5</span></code>. Run commands</p>
    1338 <div class="highlight-console"><div class="highlight"><pre><span class="go">./configure -fast -webkit -nomake examples -nomake tutorial</span>
    1339 <span class="go">            -prefix /usr/local/Trolltech/Qt-4.8.5</span>
    1340 <span class="go">gmake</span>
    1341 <span class="go">gmake install</span>
    1342 </pre></div>
    1343 </div>
    1344 <p>Qt will be installed into directory <code class="docutils literal"><span class="pre">/usr/local/Trolltech/Qt-4.8.5</span></code>. To reconfigure, run <code class="docutils literal"><span class="pre">gmake</span> <span class="pre">confclean</span></code> and <code class="docutils literal"><span class="pre">configure</span></code>. Note that the <code class="docutils literal"><span class="pre">-prefix</span></code> option allows you to specify a directory for saving the Qt libraries. This ensures that you do not run into conflicts with other Qt installations on your host. Note further that the following two lines</p>
    1345 <div class="highlight-console"><div class="highlight"><pre><span class="go">export QTDIR=&quot;/usr/local/Trolltech/Qt-4.8.5&quot;</span>
    1346 <span class="go">export PATH=&quot;$QTDIR/bin:$PATH&quot;</span>
    1347 </pre></div>
    1348 </div>
    1349 <p>need to be added either to <code class="docutils literal"><span class="pre">$HOME/.bash/profile</span></code> or <code class="docutils literal"><span class="pre">$HOME/.bashrc</span></code>. Once that is done, logout/login and start using Qt 4.8.5.</p>
    1350 <p>To compile the BNC program, you first download the source code from SVN repository <a class="reference external" href="http://software.rtcm-ntrip.org/svn/trunk/BNC">http://software.rtcm-ntrip.org/svn/trunk/BNC</a>. Go to directory BNC and run the following commands:</p>
    1351 <div class="highlight-console"><div class="highlight"><pre><span class="go">qmake bnc.pro</span>
    1352 <span class="go">make</span>
    1353 </pre></div>
    1354 </div>
    1355 <p>You will find a build of BNC in directory BNC.</p>
    1356 </div>
    1357 <div class="section" id="mac-os-x-systems">
    1358 <span id="index-4"></span><h4>Mac OS X Systems<a class="headerlink" href="#mac-os-x-systems" title="Permalink to this headline">¶</a></h4>
    1359 <div class="section" id="xcode-and-qt-installation">
    1360 <h5>Xcode and Qt installation<a class="headerlink" href="#xcode-and-qt-installation" title="Permalink to this headline">¶</a></h5>
    1361 <p>Xcode and Qt are required to compile BNC on OS X. Both tools are freely available. Xcode can be downloaded from the App Store or the Apple Developer Connection website. Once installed, run Xcode, go to &#8216;Preferences-&gt;Downloads&#8217; and install the Command Line Tools component. Qt can be downloaded from the Qt Project website. We suggest installing version 4.8.4 or higher. The Qt libraries for Mac can be downloaded from <a class="reference external" href="http://www.qt.io/download">http://www.qt.io/download</a>. Once downloaded, mount the disk image, run the Qt.mpkg package and follow instructions from the installation wizard.</p>
    1362 </div>
    1363 <div class="section" id="compilation-of-bnc">
    1364 <h5>Compilation of bnc<a class="headerlink" href="#compilation-of-bnc" title="Permalink to this headline">¶</a></h5>
    1365 <p>The version of qmake supplied in the Qt binary package is configured to use the macx-xcode specification. This can be overridden with the <code class="docutils literal"><span class="pre">-spec</span> <span class="pre">macx-g++</span></code> option which makes it possible to use <code class="docutils literal"><span class="pre">qmake</span></code> to create a <code class="docutils literal"><span class="pre">Makefile</span></code> to be used by <code class="docutils literal"><span class="pre">make</span></code>.</p>
    1366 <p>From the directory where bnc.pro is located, run <code class="docutils literal"><span class="pre">qmake</span></code> to create the <code class="docutils literal"><span class="pre">Makefile</span></code> and then <code class="docutils literal"><span class="pre">make</span></code> to compile the binary:</p>
    1367 <div class="highlight-console"><div class="highlight"><pre><span class="go">qmake -spec macx-g++ bnc.pro</span>
    1368 <span class="go">make</span>
    1369 </pre></div>
    1370 </div>
    1371 <p>Refer to the following webpage for further information: <a class="reference external" href="http://doc.qt.io/qt-4.8/qmake-platform-notes.html">http://doc.qt.io/qt-4.8/qmake-platform-notes.html</a>.</p>
    1372 </div>
    1373 <div class="section" id="bundle-deployment">
    1374 <h5>Bundle Deployment<a class="headerlink" href="#bundle-deployment" title="Permalink to this headline">¶</a></h5>
    1375 <p>When distributing BNC it is necessary to bundle in all related Qt resources in the package. The Mac Deployment Tool has been designed to automate the process of creating a deployable application bundle that contains the Qt libraries as private frameworks. To use it, issue the following commands where <code class="docutils literal"><span class="pre">bnc.app</span></code> is located.</p>
    1376 <div class="highlight-console"><div class="highlight"><pre><span class="go">macdeployqt bnc.app -dmg</span>
    1377 </pre></div>
    1378 </div>
    1379 <p>Refer to the following webpage for further information: <a class="reference external" href="http://doc.qt.io/qt-4.8/deployment-mac.html">http://doc.qt.io/qt-4.8/deployment-mac.html</a>.</p>
    1380 <p>Once a DMG file for BNC is created, you can double click it and install BNC by dragging the <code class="docutils literal"><span class="pre">bnc.app</span></code> icon to your <code class="docutils literal"><span class="pre">Applications</span></code> folder. To start BNC, double click on <code class="docutils literal"><span class="pre">Applications/bnc.app</span></code>.</p>
    1381 </div>
    1382 </div>
    1383 </div>
    1384 </div>
    1385 <span id="document-chapter4"></span><div class="section" id="configuration">
    1386 <h2>Configuration<a class="headerlink" href="#configuration" title="Permalink to this headline">¶</a></h2>
    1387 <div class="section" id="general-procedure">
    1388 <h3>General procedure<a class="headerlink" href="#general-procedure" title="Permalink to this headline">¶</a></h3>
    1389 <p>As a default, configuration files for running BNC on Unix/Linux/Mac OS X systems are saved in directory <code class="docutils literal"><span class="pre">$HOME/.config/BKG</span></code>. On Windows systems, they are typically saved in directory <code class="docutils literal"><span class="pre">C:/Documents</span> <span class="pre">and</span> <span class="pre">Settings/Username/.config/BKG</span></code>. The default configuration filename is <code class="docutils literal"><span class="pre">BNC.bnc</span></code>.</p>
    1390 <p>The default filename <code class="docutils literal"><span class="pre">BNC.bnc</span></code> can be changed and the file content can easily be edited. On Graphical User Interfaces (GUI) it is possible to Drag &amp; Drop a configuration file icon to start BNC (not on Mac OS X systems). It is also possible to start and configure BNC via command line. Some configuration options can be changed on-the-fly. See annexed Command Line Help for a complete set of configuration options.</p>
    1391 <p>BNC maintains configuration options at three different levels:</p>
    1392 <ol class="arabic simple">
     711
     712<p>
     713Steps (11)-(15) can be repeated whenever a BNC update becomes available. Running bnc.exe on a windows system requires (1) when using the NTRIP Version 2s option for stream transfer over TLS/SSL.
     714</p>
     715
     716<p>
     717<b>Linux Systems</b><br>
     718On Linux systems you may use the following procedure to install a shared Qt version 4.8.5 library:
     719</p>
     720
     721<p>
     722Download file 'qt-everywhere-opensource-src-4.8.5.tar.gz' (230 MB) available from <u>https://download.qt.io/archive/qt/4.8/4.8.5/</u>. Unzip file, extract tar archive and change to directory 'qt-everywhere-opensource-src-4.8.5'. Run commands
     723<pre>
     724  ./configure -fast -webkit -nomake examples -nomake tutorial
     725              -prefix /usr/local/Trolltech/Qt-4.8.5
     726  gmake
     727  gmake install
     728</pre>
     729</p>
     730
     731<p>
     732Qt will be installed into directory /usr/local/Trolltech/Qt-4.8.5. To reconfigure, run 'gmake confclean' and 'configure'. Note that the '-prefix' option allows you to specify a directory for saving the Qt libraries. This ensures that you do not run into conflicts with other
     733Qt installations on your host. Note further that the following two lines<pre>
     734  export QTDIR="/usr/local/Trolltech/Qt-4.8.5"
     735  export PATH="$QTDIR/bin:$PATH"</pre>
     736
     737need to be added either to $HOME/.bash_profile or $HOME/.bashrc. Once that is done, logout/login and start using Qt 4.8.5.
     738</p>
     739<p>
     740To compile the BNC program, you first download the source code from SVN repository <u>http://software.rtcm-ntrip.org/svn/trunk/BNC</u>. Go to directory BNC and run the following commands: <pre>
     741  qmake bnc.pro
     742  make
     743</pre>
     744You will find a build of BNC in directory BNC.
     745</p>
     746<p>
     747<b>Mac OS X Systems</b><br>
     748
     749<u>Xcode and Qt Installation</u><br>
     750Xcode and Qt are required to compile BNC on OS X. Both tools are freely available. Xcode can be downloaded from the App Store or the Apple Developer Connection website. Once installed, run Xcode, go to 'Preferences->Downloads' and install the Command Line Tools component. Qt can be downloaded from the Qt Project website. We suggest installing version 4.8.4 or higher. The Qt libraries for Mac can be downloaded from <u>http://www.qt.io/download</u>. Once downloaded, mount the disk image, run the Qt.mpkg package and follow instructions from the installation wizard.
     751</p>
     752
     753<p>
     754<u>Compiling BNC</u><br>
     755The version of qmake supplied in the Qt binary package is configured to use the macx-xcode specification. This can be overridden with the '-spec macx-g++' option which makes it possible to use qmake to create a Makefile to be used by 'make'.
     756</p>
     757<p>
     758From the directory where bnc.pro is located, run 'qmake' to create the Makefile and then 'make' to compile the binary.
     759<pre>
     760   qmake -spec macx-g++ bnc.pro
     761   make
     762</pre>
     763Refer to the following webpage for further information: <u>http://doc.qt.io/qt-4.8/qmake-platform-notes.html</u>.
     764</p>
     765
     766<p>
     767<u>Bundle Deployment</u><br>
     768When distributing BNC it is necessary to bundle in all related Qt resources in the package. The Mac Deployment Tool has been designed to automate the process of creating a deployable application bundle that contains the Qt libraries as private frameworks. To use it, issue the following commands where bnc.app is located.
     769<pre>
     770   macdeployqt bnc.app -dmg
     771</pre>
     772Refer to the following webpage for further information: <u>http://doc.qt.io/qt-4.8/deployment-mac.html</u>.
     773</p>
     774<p>
     775Once a DMG file for BNC is created, you can double click it and install BNC by dragging the 'bnc.app' icon to your 'Applications' folder. To start BNC, double click on '/Aplications/bnc.app'.
     776</p>
     777
     778<p><h4>1.6 <a name="introConf">Configuration</h4></p>
     779<p>
     780As a default, configuration files for running BNC on Unix/Linux/Mac OS X systems are saved in directory '${HOME}/.config/BKG'. On Windows systems, they are typically saved in directory 'C:/Documents and Settings/Username/.config/BKG'. The default configuration filename is 'BNC.bnc'.</p>
     781<p>
     782The default filename 'BNC.bnc' can be changed and the file content can easily be edited. On graphical user interfaces it is possible to Drag &amp; Drop a configuration file icon to start BNC (not on Mac OS X systems). It is also possible to start and configure BNC via command line. Some configuration options can be changed on-the-fly. See annexed 'Command Line Help' for a complete set of configuration options.
     783</p>
     784
     785<p>
     786BNC maintains configuration options at three different levels:
     787</p>
     788
     789<ol type=b>
    1393790<li>GUI, input fields level</li>
    1394791<li>Active configuration level</li>
    1395792<li>Configuration file, disk level</li>
    1396793</ol>
    1397 <div class="figure" id="fig-6">
    1398 <a class="reference internal image-reference" href="_images/fig_6.png"><img alt="_images/fig_6.png" src="_images/fig_6.png" style="width: 859.0px; height: 313.0px;" /></a>
    1399 </div>
    1400 <table border="1" class="docutils">
    1401 <colgroup>
    1402 <col width="5%" />
    1403 <col width="95%" />
    1404 </colgroup>
    1405 <tbody valign="top">
    1406 <tr class="row-odd"><td>Left</td>
    1407 <td>BNC in graphics mode; active configuration options are introduced through GUI input fields and finally saved on disk</td>
    1408 </tr>
    1409 <tr class="row-even"><td>Middle</td>
    1410 <td>BNC in &#8216;no window&#8217; mode; active configuration options are read from disk</td>
    1411 </tr>
    1412 <tr class="row-odd"><td>Right</td>
    1413 <td>BNC in &#8216;no window&#8217; mode without configuration file; default configuration options can be overwritten via command line options</td>
    1414 </tr>
    1415 </tbody>
     794
     795<p><img src="IMG/screenshot31.png"/></p>
     796<p><u>Figure 6:</u> Management of configuration options in BNC:<br>
     797<table>
     798<tr><td>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </td><td>Left:</td><td>BNC in graphics mode; active configuration options are introduced through GUI input fields and finally saved on disk</td></tr>
     799<tr><td>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </td><td>Middle:</td><td>BNC in 'no window' mode; active configuration options are read from disk</td></tr>
     800<tr><td>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </td><td>Right:</td><td>BNC in 'no window' mode without configuration file; default configuration options can be overwritten via command line options</td></tr>
    1416801</table>
    1417 <blockquote>
    1418 <div>Management of configuration options in BNC.</div></blockquote>
    1419 <p>Configuration options are usually specified using GUI input fields 1 after launching BNC. When hitting the &#8216;Start&#8217; button, configuration options are transferred one level down to become BNC&#8217;s active configuration 2, allowing the program to begin its operation. Pushing the &#8216;Stop&#8217; button ends data processing so that the user can finally terminate BNC through &#8216;File&#8217;-&gt;&#8217;Quit&#8217;-&gt;&#8217;Save Options&#8217; which saves processing options in a configuration file to disk 3. It is important to understand that:</p>
    1420 <ul class="simple">
     802
     803<p>
     804Configuration options are usually specified using GUI input fields (1) after launching BNC. When hitting the 'Start' button, configuration options are transferred one level down to become BNC's active configuration (2), allowing the program to begin its operation. Pushing the 'Stop' button ends data processing so that the user can finally terminate BNC through 'File'->'Quit'->'Save Options' which saves processing options in a configuration file to disk (3). It is important to understand that:
     805<ul>
    1421806<li>Active configuration options (2) are independent from GUI input fields and configuration file content.</li>
    1422807<li>Hence changing configuration options at GUI level (1) while BNC is already processing data does not influence a running job.</li>
    1423 <li>Editing configuration options at disk level (3) while BNC is already processing data does also not influence a running job. However, there are two exceptions which force BNC to update certain active options on-the-fly:<ul>
    1424 <li>Pushing the &#8216;Reread &amp; Save Configuration&#8217; button lets BNC immediately reread its configuration from GUI input fields to make them active configuration options. Then BNC saves them on disk.</li>
    1425 <li>Specifying the &#8216;Reread configuration&#8217; option lets BNC reread its configuration from disk at pre-defined intervals.</li>
    1426 </ul>
     808<li>Editing configuration options at disk level (3) while BNC is already processing data does also not influence a running job. However, there are two exceptions which force BNC to update certain active options on-the-fly:</li>
     809<ul>
     810<li>Pushing the 'Reread & Save Configuration' button lets BNC immediately reread its configuration from GUI input fields to make them active configuration options. Then BNC saves them on disk.</li>
     811<li>Specifying the 'Reread configuration' option lets BNC reread its configuration from disk at pre-defined intervals.</li>
     812</ul>
     813<li>A specific BNC configuration can be started in 'no window' mode from scratch without a configuration file if options for the active configuration level (2) are provided via command line.</li>
     814</ul>
     815</p>
     816
     817<p><h4>1.6.1 <a name="introExamples">Examples</h4></p>
     818
     819<p>
     820BNC comes with a number of configuration examples which can be used on all operating systems. Copy the complete directory 'Example_Configs' which comes with the software to your disc. It includes sub-directories 'Input' and 'Output'. There are several ways to start BNC using one of the example configurations:
     821</p>
     822<ul>
     823<li>
     824On graphical systems (except for Mac systems), you may use the computer mouse to 'drag' a configuration file icon and 'drop' it on top of BNC's program icon.
    1427825</li>
    1428 <li>A specific BNC configuration can be started in &#8216;no window&#8217; mode from scratch without a configuration file if options for the active configuration level (2) are provided via command line.</li>
    1429 </ul>
    1430 </div>
    1431 <div class="section" id="examples-configuration-files">
    1432 <h3>Examples configuration files<a class="headerlink" href="#examples-configuration-files" title="Permalink to this headline">¶</a></h3>
    1433 <p>BNC comes with a number of configuration examples which can be used on all operating systems. Copy the complete directory <code class="docutils literal"><span class="pre">Example_Configs</span></code> which comes with the software to your disc. It includes sub-directories <code class="docutils literal"><span class="pre">Input</span></code> and <code class="docutils literal"><span class="pre">Output</span></code>. There are several ways to start BNC using one of the example configurations:</p>
    1434 <ul class="simple">
    1435 <li>On graphical systems (except for Mac systems), you may use the computer mouse to &#8216;drag&#8217; a configuration file icon and &#8216;drop&#8217; it on top of BNC&#8217;s program icon.</li>
    1436 <li>You could also start BNC using a command line for naming a specific configuration file (suggested e.g. for Mac systems):  <code class="docutils literal"><span class="pre">/Applications/bnc.app/Contents/MacOS/bnc</span> <span class="pre">--conf</span> <span class="pre">&lt;configFileName&gt;</span></code></li>
    1437 <li>On non-graphical systems or when running BNC in batch mode in the background you may start the program using a command line with a configuration file option in &#8216;no window&#8217; mode (example for Windows systems): <code class="docutils literal"><span class="pre">bnc.exe</span> <span class="pre">--conf</span> <span class="pre">&lt;configFileName&gt;</span> <span class="pre">--nw</span></code></li>
    1438 </ul>
    1439 <p>Although it&#8217;s not a must, we suggest that you always create BNC configuration files with filename extension <code class="docutils literal"><span class="pre">.bnc</span></code>.</p>
    1440 <p>We furthermore suggest for convenience reasons that you configure your system to automatically start BNC when you double-click a file with the filename extension <code class="docutils literal"><span class="pre">.bnc</span></code>. The following describes what to do on MS Windows systems to associate the BNC program to such configuration files:</p>
    1441 <ol class="arabic simple">
    1442 <li>Right-click a file that has the extension <code class="docutils literal"><span class="pre">.bnc</span></code> and then click &#8216;Open&#8217;. If the &#8216;Open&#8217; command is not available, click &#8216;Open With&#8217; or double-click the file.</li>
     826<li>
     827You could also start BNC using a command line for naming a specific configuration file (suggested e.g. for Mac systems):<br>
     828/Applications/bnc.app/Contents/MacOS/bnc --conf &lt;configFileName&gt;
     829</li>
     830<li>
     831On non-graphical systems or when running BNC in batch mode in the background you may start the program using a command line with a configuration file option in '<u>n</u>o <u>w</u>indow' mode (example for Windows systems):<br>
     832bnc.exe --conf &lt;configFileName&gt; --nw
     833</li>
     834</ul>
     835<p>
     836Although it's not a must, we suggest that you always create BNC configuration files with filename extension '.bnc'.
     837</p>
     838
     839<p>
     840We furthermore suggest for convenience reasons that you configure your system to automatically start BNC when you double-click a file with the filename extension '.bnc'. The following describes what to do on MS Windows systems to associate the BNC program to such configuration files:
     841</p>
     842
     843<ol type=b>
     844<li>Right-click a file that has the extension '.bnc' and then click 'Open'. If the 'Open' command is not available, click 'Open With' or double-click the file.</li>
    1443845<li>Windows displays a dialog box that says that the system cannot open this file. The dialog box offers several options for selecting a program.</li>
    1444 <li>Click &#8216;Select the program from a list&#8217;, and then click &#8216;OK&#8217;.</li>
    1445 <li>The &#8216;Open With&#8217; dialog box is displayed. Click &#8216;Browse&#8217;, locate and then click the BNC program, and then click &#8216;Open&#8217;.</li>
    1446 <li>Click to select the &#8216;Always use the selected program to open this kind of file&#8217; check box.</li>
    1447 <li>Click &#8216;OK&#8217;.</li>
     846<li>Click 'Select the program from a list', and then click 'OK'.</li>
     847<li>The 'Open With' dialog box is displayed. Click 'Browse', locate and then click the BNC program, and then click 'Open'.</li>
     848<li>Click to select the 'Always use the selected program to open this kind of file' check box.</li>
     849<li>Click 'OK'.</li>
    1448850</ol>
    1449 <p>Some of the presented example configurations contain a user ID &#8216;Example&#8217; with a password &#8216;Configs&#8217; for accessing a few GNSS streams from public Ntrip Broadcasters. This free generic account is arranged for convenience reasons only. Please be so kind as to replace the generic account details as well as the place holder&#8217;s &#8216;User&#8217; and &#8216;Pass&#8217; by the personal user ID and password you receive following an online registration through <a class="reference external" href="http://register.rtcm-ntrip.org">http://register.rtcm-ntrip.org</a>.</p>
    1450 <p>Note that the account for an Ntrip Broadcaster is usually limited to pulling a specified maximum number of streams at the same time. As running some of the example configurations requires pulling several streams, it is suggested to make sure that you do not exceed your account&#8217;s limits.</p>
    1451 <p>Make also sure that sub-directories &#8216;Input&#8217; and &#8216;Output&#8217; which are part of the example configurations exist on your system or adjust the affected example configuration options according to your needs.</p>
    1452 <p>Some BNC options require Antenna Phase Center variations as made available from IGS through so-called ANTEX files at <a class="reference external" href="ftp://igs.org/pub/station/general">ftp://igs.org/pub/station/general</a>. An example ANTEX file <code class="docutils literal"><span class="pre">igs08.atx</span></code> is part of the BNC package for convenience.</p>
    1453 <p>The example configurations assume that no proxy protects your BNC host. Should a proxy be operated in front of BNC then you need to introduce its name or IP and port number in the &#8216;Network&#8217; panel.</p>
    1454 </div>
    1455 <div class="section" id="list-of-example-configuration-files">
    1456 <h3>List of example configuration files<a class="headerlink" href="#list-of-example-configuration-files" title="Permalink to this headline">¶</a></h3>
    1457 <p>You should be able to run all configuration file examples without changing contained options. However, configuration &#8216;Upload.bnc&#8217; is an exception because it requires an input stream from a connected network engine.</p>
    1458 <ol class="arabic simple">
    1459 <li>Configuration File <code class="docutils literal"><span class="pre">RinexObs.bnc</span></code></li>
     851
     852<p>
     853Some of the presented example configurations contain a user ID 'Example' with a password 'Configs' for accessing a few GNSS streams from public Ntrip Broadcasters. This free generic account is arranged for convenience reasons only. Please be so kind as to replace the generic account details as well as the place holder's 'User' and 'Pass' by the personal user ID and password you receive following an online registration through <u>http://register.rtcm-ntrip.org</u>.
     854</p>
     855
     856<p>
     857Note that the account for an Ntrip Broadcaster is usually limited to pulling a specified maximum number of streams at the same time. As running some of the example configurations requires pulling several streams, it is suggested to make sure that you do not exceed your account's limits.
     858</p>
     859
     860<p>
     861Make also sure that sub-directories 'Input' and 'Output' which are part of the example configurations exist on your system or adjust the affected example configuration options according to your needs.
     862</p>
     863
     864<p>
     865Some BNC options require Antenna Phase Center variations as made available from IGS through so-called ANTEX files at <u>ftp://igs.org/pub/station/general</u>. An example ANTEX file 'igs08.atx' is part of the BNC package for convenience.
     866</p>
     867
     868<p>
     869The example configurations assume that no proxy protects your BNC host. Should a proxy be operated in front of BNC then you need to introduce its name or IP and port number in the 'Network' panel.
     870</p>
     871
     872<p>
     873<b>(A) Working with Configuration Files</b><br><br>
     874You should be able to run all configuration file examples without changing contained options. However, configuration 'Upload.bnc' is an exception because it requires an input stream from a connected network engine.
     875</p>
     876<ol type=b>
     877
     878<li>Configuration File 'RinexObs.bnc'<br>
     879Purpose: Convert RTCM streams to
     880RINEX Observation files. The configuration pulls streams from Ntrip
     881Broadcasters using Ntrip Version 1 to generate 15min 1Hz RINEX Version 3
     882Observation files. See <u>http://igs.bkg.bund.de/ntrip/observations</u> for observation
     883stream resources.
     884</li><br>
     885
     886<li>Configuration File 'RinexEph.bnc'<br>
     887Purpose: Convert a RTCM stream
     888with navigation messages to RINEX Navigation files. The configuration
     889pulls a RTCM Version 3 stream with Broadcast Ephemeris coming from the
     890real-time EUREF and IGS networks and saves hourly RINEX Version 3 Navigation
     891files. See <u>http://igs.bkg.bund.de/ntrip/ephemeris</u> for further real-time
     892Broadcast Ephemeris resources.
     893</li><br>
     894
     895<li>Configuration File 'BrdcCorr.bnc'<br>
     896Purpose: Save Broadcast Corrections from RTCM
     897SSR messages in hourly plain ASCII files. See
     898<u>http://igs.bkg.bund.de/ntrip/orbits</u> for various real-time IGS or EUREF
     899orbit/clock correction products.
     900</li><br>
     901
     902<li>Configuration File 'RinexConcat.bnc'<br>
     903Purpose: Concatenate several RINEX Version 3 files to
     904produce one compiled file and edit the marker name in the file header. The
     905sampling interval is set to 30 seconds. See section 'RINEX Editing & QC' in the
     906documentation for examples on how to call BNC from command line in 'no window'
     907mode for RINEX file editing, concatenation and quality check.
     908</li><br>
     909
     910<li>Configuration File 'RinexQC.bnc'<br>
     911Purpose: Check the quality of a RINEX Version 3
     912file by means of a multipath analysis. Results are saved on disk in terms of a
     913plot in PNG format. See section 'RINEX Editing & QC' in the documentation for
     914examples on how to call BNC from command line in 'no window' mode for RINEX
     915file editing, concatenation and quality check.
     916</li><br>
     917
     918<li>Configuration File 'RTK.bnc'<br>
     919Purpose: Feed a serially connected receiver with
     920observations from a nearby reference station for conventional RTK. The stream is
     921scanned for RTCM messages. Message type numbers and latencies of incoming
     922observations are reported in BNC's logfile.
     923</li><br>
     924
     925<li>Configuration File 'FeedEngine.bnc'<br>
     926Purpose: Feed a real-time GNSS engine with
     927observations from remote reference stations. The configuration pulls a single
     928stream from an Ntrip Broadcaster. You could also pull
     929several streams from different casters. Incoming observations are decoded,
     930synchronized, output through a local IP port and also saved into a file. Failure
     931and recovery thresholds are specified to inform about outages.
     932</li><br>
     933
     934<li>Configuration File 'PPP.bnc'<br>
     935Purpose: Precise Point Positioning from
     936observations of a rover receiver. The configuration reads RTCM Version 3
     937observations, a Broadcast Ephemeris stream and a stream with Broadcast
     938Corrections. Positions are saved in the logfile.
     939</li><br>
     940
     941<li>Configuration File 'PPPNet.bnc'<br>
     942Purpose: Precise
     943Point Positioning for several rovers or receivers from an entire network of
     944reference stations in one BNC job. The possible maximum number of PPP solutions
     945per job depends on the processing power of the hosting computer. This example
     946configuration reads two RTCM Version 3 observation streams, a Broadcast
     947Ephemeris stream and a stream with Broadcast Corrections. PPP Results for the
     948two stations are saved in PPP logfiles.
     949</li><br>
     950
     951<li>Configuration File 'PPPQuickStart.bnc'<br>
     952Purpose: Precise Point Positioning in Quick-Start
     953mode from observations of a static receiver with precisely known position. The
     954configuration reads RTCM Version 3 observations, Broadcast Corrections and a
     955Broadcast Ephemeris stream. Positions are saved in NMEA format on disc.
     956They are also output through IP port for real-time visualization with tools
     957like RTKPLOT. Positions are saved in the logfile.
     958</li><br>
     959
     960<li>Configuration File 'PPPPostProc.bnc'<br>
     961Purpose: Precise Point Positioning in post
     962processing mode. BNC reads RINEX Version 3 Observation and Navigation files
     963and a Broadcast Correction file. PPP processing options are set to support
     964the Quick-Start mode. The output is saved in a specific post processing
     965logfile and contains coordinates derived over time following the
     966implemented PPP filter algorithm.
     967</li><br>
     968
     969<li>Configuration File 'PPPGoogleMaps.bnc'<br>
     970Purpose: Track BNC's point positioning
     971solutions using Google Maps or OpenStreetMap as background. BNC reads a
     972RINEX Observation file and a RINEX Navigation file to carry out a
     973'Standard Point Positioning' solution in post processing mode. Although
     974this is not a real-time application, it requires the BNC host to be connected
     975to the Internet. Specify a computation speed, then hit button 'Open Map'
     976to open the track map, then hit 'Start' to visualize receiver positions
     977on top of GM/OSM maps.
     978</li><br>
     979
     980<li>Configuration File 'SPPQuickStartGal.bnc'<br>
     981Purpose: Single Point Positioning in Quick-Start mode from observations of a static
     982receiver with quite precisely known position.
     983The configuration uses GPS, GLONASS and Galileo observations and a Broadcast
     984Ephemeris stream.
     985</li><br>
     986
     987<li>Configuration File 'SaveSp3.bnc'<br>
     988Purpose: Produces SP3 files from a Broadcast
     989Ephemeris stream and a Broadcast Correction stream. The Broadcast Correction
     990stream is formally introduced in BNC's 'Combine Corrections' table. Note that
     991producing SP3 requires an ANTEX file because SP3 file content should be
     992referred to CoM.
     993</li><br>
     994
     995<li>Configuration File 'Sp3ETRF2000PPP.bnc'<br>
     996Purpose: Produce SP3 files from a Broadcast
     997Ephemeris stream and a stream carrying ETRF2000 Broadcast Corrections. The
     998Broadcast Correction stream is formally introduced in BNC's 'Combine
     999Corrections' table. The configuration leads to a SP3 file containing orbits also referred
     1000to ETRF2000. Pulling in addition observations from a reference station at
     1001precisely known ETRF2000 position allows comparing an 'INTERNAL' PPP solution
     1002with a known ETRF2000 reference coordinate.
     1003</li><br>
     1004
     1005<li>Configuration File 'Upload.bnc'<br>
     1006Purpose: Upload orbits and clocks from a
     1007real-time GNSS engine to an Ntrip Broadcaster. For that the configuration reads
     1008precise orbits and clocks in RTNET format. It also reads a stream carrying
     1009Broadcast Ephemeris. BNC converts the orbits and clocks into Broadcast
     1010Corrections and encodes them to RTCM Version 3 SSR messages to finally upload them to
     1011an Ntrip Broadcaster. The Broadcast Correction stream is referred to satellite
     1012Antenna Phase Center (APC) and reference system IGS08. Orbits are saved on disk
     1013in SP3 format and clocks are saved in Clock RINEX format.
     1014</li><br>
     1015
     1016<li>Configuration File 'Combi.bnc'<br>
     1017Purpose: Pull several streams carrying Broadcast
     1018Corrections and a Broadcast Ephemeris stream from an Ntrip Broadcaster to
     1019produce a combined Broadcast Correction stream. BNC encodes the combination
     1020product in RTCM Version 3 SSR messages and uploads that to an Ntrip
     1021Broadcaster. The Broadcast Correction stream is referred to satellite Antenna Phase Center (APC) and not to satellite
     1022Center of Mass (CoM). Its reference system is IGS08. Orbits are saved in SP3
     1023format (referred to CoM) and clocks in Clock RINEX format.
     1024</li><br>
     1025
     1026<li>Configuration File 'CombiPPP.bnc'<br>
     1027Purpose: This configuration equals the 'Combi.bnc' configuration. However, the combined
     1028Broadcast Corrections are in addition used for an 'INTERNAL' PPP solution
     1029based on observations from a static reference station with known precise
     1030coordinates. This allows a continuous quality check of the combination product
     1031through observing coordinate displacements.
     1032</li><br>
     1033
     1034<li>Configuration File 'UploadEph.bnc'<br>
     1035Purpose: Pull a number of streams from reference
     1036stations to get hold of contained Broadcast Ephemeris messages. They are
     1037encoded to RTCM Version 3 format and uploaded for the purpose of providing
     1038a Broadcast Ephemeris stream with an update rate of 5 seconds.
     1039</li><br>
     1040
     1041<li>Configuration File 'CompareSp3.bnc'<br>
     1042Purpose: Compare two SP3 files to calculate
     1043RMS values for orbit and clock differences. GPS satellite G05 and GLONASS
     1044satellite R18 are excluded from this comparison. Comparison results are saved
     1045in a logfile.
     1046</li><br>
     1047
     1048<li>Configuration File 'Empty.bnc'<br>
     1049Purpose: Provide an empty example configuration file for
     1050BNC which only contains default settings.
     1051</li>
     1052
    14601053</ol>
    1461 <blockquote>
    1462 <div>Purpose: Convert RTCM streams to RINEX Observation files. The configuration pulls streams from Ntrip Broadcasters using Ntrip Version 1 to generate 15min 1Hz RINEX Version 3 Observation files. See <a class="reference external" href="http://igs.bkg.bund.de/ntrip/observations">http://igs.bkg.bund.de/ntrip/observations</a> for observation stream resources.</div></blockquote>
    1463 <ol class="arabic simple" start="2">
    1464 <li>Configuration File <code class="docutils literal"><span class="pre">RinexEph.bnc</span></code></li>
     1054<b>(B) Working with Command Line configuration options</b><br><br>
     1055The following configuration examples make use of BNC's 'Command Line Interface' (CLI). Configuration options are exclusively specified via command line. No configuration file is used. Examples are provided as shell scripts for a Linux system. They call BNC in 'no window' batch mode (command line option -nw). The scripts expect 'Example_Configs' to be the current working directory.
     1056
     1057<ol start="22">
     1058<li>Shell Script 'RinexQC.sh'<br>
     1059Purpose: Equals configuration file example 'RinexQC.bnc', checks the quality of
     1060a RINEX Version 3 file by means of a multipath analysis. Virtual X-Server
     1061'Xvfb' is operated while producing plot files in PNG format. BNC is offline. All
     1062results are saved on disk.
     1063</li><br>
     1064
     1065<li>Shell Script 'RinexConcat.sh'<br>
     1066Purpose: Equals configuration file example 'RinexConcat.bnc', concatenates
     1067several RINEX Version 3 files to produce one compiled file and edit the marker
     1068name in the file header. The sampling interval is set to 30 seconds.
     1069</li><br>
     1070
     1071<li>Shell Script 'RinexEph.sh'<br>
     1072Purpose: Equals configuration file example 'RinexEph.bnc', converts a RTCM
     1073stream with navigation messages to RINEX Navigation files. The configuration
     1074pulls a RTCM Version 3 stream with Broadcast Ephemeris coming from the
     1075real-time EUREF and IGS networks and saves hourly RINEX Version 3 Navigation
     1076files. BNC runs online until it's terminated after 10 seconds.  See
     1077<u>http://igs.bkg.bund.de/ntrip/ephemeris</u> for further real-time Broadcast
     1078Ephemeris resources.
     1079</li><br>
     1080
     1081<li>Shell Script 'ScanLate.sh'<br>
     1082Purpose: Scan an observation stream for contained RTCM message types, print
     1083observation latencies. The output is saved in a logfile. Latencies are
     1084reported every 10 seconds. BNC runs online until it's terminated after 20
     1085seconds.
     1086</li><br>
     1087
     1088<li>Shell Script 'RinexObs.sh'<br>
     1089Purpose: Equals configuration file example 'RinexObs.bnc', converts RTCM
     1090streams to RINEX Observation files. The configuration pulls streams from two
     1091Ntrip Broadcasters using Ntrip Version 1 to generate 15min 1Hz RINEX Version 3
     1092Observation files. See <u>http://igs.bkg.bund.de/ntrip/observations</u> for
     1093observation stream resources. BNC runs online until it's terminated after 30
     1094seconds.
     1095</li>
    14651096</ol>
    1466 <blockquote>
    1467 <div>Purpose: Convert a RTCM stream with navigation messages to RINEX Navigation files. The configuration pulls a RTCM Version 3 stream with Broadcast Ephemeris coming from the real-time EUREF and IGS networks and saves hourly RINEX Version 3 Navigation files. See <a class="reference external" href="http://igs.bkg.bund.de/ntrip/ephemeris">http://igs.bkg.bund.de/ntrip/ephemeris</a> for further real-time Broadcast Ephemeris resources.</div></blockquote>
    1468 <ol class="arabic simple" start="3">
    1469 <li>Configuration File <code class="docutils literal"><span class="pre">BrdcCorr.bnc</span></code></li>
     1097
     1098<b>(C) Command Line configuration options overwriting Configuration File options</b><br><br>
     1099For specific applications you may like to use your own set of standard configuration options from a configuration file and update some of its content via command line. When using a configuration file together with command line configuration options in one BNC call, the command line configuration options will always overrule options contained in the configuration file.
     1100
     1101<ol start="27">
     1102<li>Shell Script 'CompareSp3.sh'<br>
     1103Purpose: Equals configuration file example 'CompareSp3.bnc', compares two SP3 files to calculate RMS values for orbit and clock differences. However, instead of excluding GPS satellite G05 and GLONASS satellite R18 from the comparison as specified in 'CompareSp3.bnc', GPS satellite G06 and all GLONASS satellites are excluded via command line option. BNC runs offline. Comparison results are saved in a logfile.
     1104</li>
    14701105</ol>
    1471 <blockquote>
    1472 <div>Purpose: Save Broadcast Corrections from RTCM SSR messages in hourly plain ASCII files. See <a class="reference external" href="http://igs.bkg.bund.de/ntrip/orbits">http://igs.bkg.bund.de/ntrip/orbits</a> for various real-time IGS or EUREF orbit/clock correction products.</div></blockquote>
    1473 <ol class="arabic simple" start="4">
    1474 <li>Configuration File <code class="docutils literal"><span class="pre">RinexConcat.bnc</span></code></li>
     1106
     1107</p>
     1108
     1109<p><h4>1.7 <a name="introLimit">Limitations</h4></p>
     1110<ul>
     1111<li>
     1112In Qt-based desktop environments (like KDE) on Unix/Linux platforms it may happen that you experience a crash of BNC at startup even when running the program in the background using the '-nw' option. This is a known bug most likely resulting from an incompatibility of Qt libraries in the environment and in BNC. Entering the command 'unset SESSION_MANAGER' before running BNC may help as a work-around.
     1113</li>
     1114
     1115<li>
     1116Using RTCM Version 3 to produce RINEX files, BNC will properly handle most message types. However, when handling message types 1001, 1003, 1009 and 1011 where the ambiguity field is not set, the output will be no valid RINEX. All values will be stored modulo 299792.458 (speed of light).
     1117</li>
     1118<li>
     1119Using RTCM Version 2, BNC will only handle message types 18 and 19 or 20 and 21 together with position and the antenna offset information carried in types 3 and 22. Note that processing carrier phase corrections and pseudo-range corrections contained in message types 20 and 21 needs access to Broadcast Ephemeris. Hence, whenever dealing with message types 20 and 21, make sure that Broadcast Ephemeris become available for BNC through also retrieving at least one RTCM Version 3 stream carrying message types 1019 (GPS ephemeris) and 1020 (GLONASS ephemeris).
     1120</li>
     1121<li>
     1122BNC's 'Get Table' function only shows the STR records of a source-table. You can use an Internet browser to download the full source-table content of any Ntrip Broadcaster by simply entering its URL in the form of <u>http://host:port</u>. Data field number 8 in the NET records may provide information about where to register for an Ntrip Broadcaster account.
     1123</li>
     1124<li>
     1125EUREF as well as IGS adhere to an open data policy. Streams are made available through Ntrip Broadcasters at <u>www.euref-ip.net</u>, <u>www.igs-ip.net</u>, <u>products.igs-ip.net</u>, and <u>mgex.igs-ip.net</u> free of charge to anyone for any purpose. There is no indication up until now how many users will need to be supported simultaneously. The given situation may develop in such a way that it might become difficult to serve all registered users at the same times. In cases where limited resources on the Ntrip Broadcaster side (software restrictions, bandwidth limitation etc.) dictates, first priority in stream provision will be given to stream providers followed by re-broadcasting activities and real-time analysis centers while access to others might be temporarily denied.
     1126</li>
     1127<li>
     1128Once BNC has been started, many of its configuration options cannot be changed as long as it is stopped. See chapter 'Reread Configuration' for on-the-fly configuration exceptions.
     1129</li>
     1130<li>
     1131Drag and drop of configuration files is currently not supported on Mac OS X. On such system you have to start BNC via command line.
     1132</li>
     1133</ul>
     1134
     1135<p><h4>1.8 <a name="introLBack">Looking Back</h4></p>
     1136<p>
     1137A basic function of BNC is streaming GNSS data over the open Internet using the Ntrip transport protocol. Employing IP streaming for satellite positioning goes back to the beginning of our century. Wolfgang Rupprecht has been the first person who developed TCP/IP server software under the acronym of DGPS-IP (Rupprecht 2000) and published it under GNU General Public License (GPL). While connecting marine beacon receivers to PCs with permanent access to the Internet he transmitted DGPS corrections in an RTCM format to support Differential GPS positioning over North America. With approximately 200 bits/sec the bandwidth requirement for disseminating beacon data was comparatively small. Each stream was transmitted over a unique combination of IP address and port. Websites informed about existing streams and corresponding receiver positions.
     1138</p>
     1139<p>
     1140To cope with an increasing number of transmitting GNSS reference stations, the Federal Agency for Cartography and Geodesy (BKG) together with the Informatik Centrum Dortmund (ICD) in Germany developed a streaming protocol for satellite navigation data called 'Networked Transport of RTCM via Internet Protocol' (Ntrip). The protocol was built on top of the HTTP standard and included the provision of meta data describing the stream content. Any stream could now be globally transmitted over just one IP port: HTTP port 80. Stream availability and content details became part of the transport protocol. The concept was first published in 2003 (Weber and Honkala 2004, Weber et al. 2005a) and was based on three software components, namely an NtripServer pushing data from a reference station to an NtripCaster and an NtripClient pulling data from the stream splitting caster to support a rover receiver. (Note that from a socket-programmers perspective NtripServer and NtripClient both act as clients; only the NtripCaster operates as socket-server.) Ntrip could essentially benefit from Internet Radio developments. It was the ICECAST multimedia server, which provided the bases for BKG's 'Professional Ntrip Broadcaster' with software published first in 2003 and of course again as Open Source under GPL.
     1141</p>
     1142<p>
     1143For BKG as a governmental agency, making Ntrip an Open Industry Standard has been an objective from the very beginning. The 'Radio Technical Commission for Maritime Services' (RTCM) accepted 'Ntrip Version 1' in 2004 as 'RTCM Recommended Standard' (Weber et al. 2005b). Nowadays there is almost no geodetic GNSS receiver which does not come with integrated NtripClient and NtripServer functionality as part of the firmware. Hundreds of NtripCaster implementations are operated world-wide for highly accurate satellite navigation through RTK networks. Thousands of reference stations upload observations via NtripServer to central computing facilities for any kind of NtripClient application. In 2011 'Ntrip Version 2' was released (RTCM SC-104 2011) which cleared and fixed some design problems and HTTP protocol violations. It also supports TCP/IP via SSL and adds optional communication over RTSP/RTP and UDP.
     1144</p>
     1145<p>
     1146With the advent of Ntrip as an open streaming standard, BKG's interest turned towards taking advantage from free real-time access to GNSS observations. International Associations such as the IAG Reference Frame Sub Commissions for Africa (AFREF), Asia & Pacific (APREF), Europe (EUREF), North America (NAREF) Latin America & Caribbean (SIRGAS), and the International GNSS Service (IGS) maintain continental or even global GNSS networks with the majority of modern receivers supporting Ntrip stream upload. Through operating BKG's NtripCaster software, these networks became extremely valuable sources of real-time GNSS information.  In 2005, this was the starting point for developing the 'BKG Ntrip Client' (BNC) as a multi-stream Open Source NtripClient that allows pulling hundreds of streams simultaneously from any number of NtripCaster installations world-wide. Decoding incoming RTCM streams and output observations epoch by epoch via IP port to feed a real-time GNSS network engine became BNC's first and foremost ability (Weber and Mervart 2009). Converting decoded streams to short high-rate RINEX files to assist near real-time applications became a welcome by-product right from the start of this development.
     1147</p>
     1148<p>
     1149Adding real-time Precise Point Positioning (PPP) support to BNC began in 2010 as an important completion in view of developing an Open RTCM Standard for that. According to the State Space Representation (SSR) model, new Version 3 messages are proposed to provide e.g. satellite orbit and clock corrections and ionospheric corrections as well as biases for code and phase data. The ultimate goal for SSR standardization is to reach centimeter level accuracy within seconds as an alternative to Network RTK methods such as VRS, FKP, and MAC. Because of interoperability aspects, an Open Standard in this area is of particular interest for clients. Regarding stand-alone PPP in BNC, it is worth mentioning that the program is not and can never be in competition with a receiver manufacturer's proprietary solution. Only software or services that are part of a receiver firmware could have the potential of becoming a thread for commercial interests. However, implementing or not implementing an Open PPP approach in a firmware is and will always remain a manufacturer's decision.
     1150</p>
     1151<p>
     1152Implementing some post processing capability is essential for debugging real-time software in case of problems. So certain real-time options in BNC were complemented to work offline through reading data from files. Moreover, beginning in 2012, the software was extended to support Galileo, BeiDou, and QZSS besides GPS and GLONASS. With that, the Open Source tool BNC could be used for RINEX Version 3 file editing, concatenation and quality checks, a post processing functionality demanded by the IGS Multi-GNSS Experiment and not really covered at that time by UNAVCO's famous TEQC program with its limitation on GPS.
     1153</p>
     1154
     1155<p>
     1156Over the years, the BNC Subversion (SVN) software archive received over seven thousand commits made by 11 contributors representing about one hundred thirty thousand lines of code. The well-established, mature codebase is mostly written in C++ language. Its publication under GNU GPL is thought to be well-suited for test, validation and demonstration of new approaches in precise real-time satellite navigation when IP streaming is involved. Commissioned by a German governmental agency, the overall intention has been to push the development of RTCM Recommended Standards to the benefit of IAG institutions and services such as IGS and the interested public in general.
     1157</p>
     1158<p>
     1159In February 2014 the overall responsibility at BKG for the concept and realization of BNC was handed over from Georg Weber to Axel Rülke. He is in charge now for guiding the application and further evolution of the software in view of appearing new satellite navigation systems and services.
     1160</p>
     1161
     1162<p><h3>2. <a name="optsettings">Settings Details</h3></p>
     1163<p>
     1164The general documentation approach is to create a separate chapter for each processing option in a sequence which follows the layout of BNC's Graphical User Interface (GUI). The advantage is that searching for help by means of the document's Table of Contents (TOC) is quite convenient. A rather comprehensive number of TOC entries is the accepted downside of this approach.
     1165</p>
     1166<p>
     1167The following chapters describe how to set BNC program options. They explain the 'Top Menu Bar', the 'Settings Canvas' with the processing options, the content of the 'Streams Canvas' and 'Logging Canvas', and the 'Bottom Menu Bar'.
     1168</p>
     1169
     1170<p><h4>2.1 <a name="topmenu">Top Menu Bar</h4></p>
     1171<p>
     1172The top menu bar allows selecting a font for the BNC windows, save configured options, or quit the program execution. It also provides access to the program's documentation.
     1173</p>
     1174
     1175<p><h4>2.1.1 <a name="file">File</h4></p>
     1176
     1177<p>
     1178The 'File' button lets you
     1179<ul>
     1180<li> Select an appropriate font.<br>
     1181Use smaller font size if the BNC main window exceeds the size of your screen.
     1182</li>
     1183<li> Reread and save selected options in configuration file.<br>
     1184When using 'Reread &amp; Save Configuration' while BNC is already processing data, some configuration options become immediately effective on-the-fly without interrupting uninvolved threads while all of them are saved on disk. See section 'Reread Configuration' for a list of on-the-fly changeable configuration options.
     1185</li>
     1186<li> Quit the BNC program.
     1187</li>
     1188</ul>
     1189</p>
     1190
     1191<p><h4>2.1.2 <a name="help">Help</h4></p>
     1192
     1193<p>
     1194The 'Help' button provides access to
     1195<ul>
     1196<li>
     1197Help contents.<br>
     1198You may keep the 'Help Contents' window open while configuring BNC.
     1199</li>
     1200<li>
     1201A 'Flow Chart' showing BNC linked to a real-time GNSS network engine such as RTNET.
     1202</li>
     1203<li>
     1204General information about BNC.<br>
     1205Close the 'About BNC' window to continue working with BNC.
     1206</li>
     1207</ul>
     1208</p>
     1209
     1210<p><h4>2.2 <a name="network">Network</h4></p>
     1211<p>
     1212You may need to specify a proxy when running BNC in a protected network. You may also like to use the Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL) cryptographic protocols for secure Ntrip communication over the Internet.
     1213</p>
     1214<p><h4>2.2.1 <a name="proxy">Proxy - Usage in a protected LAN</h4></p>
     1215<p>
     1216If you are running BNC within a protected Local Area Network (LAN), you might need to use a proxy server to access the Internet. Enter your proxy server IP and port number in case one is operated in front of BNC. If you do not know the IP and port of your proxy server, check the proxy server settings in your Internet browser or ask your network administrator.</p>
     1217<p>
     1218Note that IP streaming is often not allowed in a LAN. In this case you need to ask your network administrator for an appropriate modification of the local security policy or for the installation of a TCP relay to the Ntrip Broadcaster you need to access. If this is not possible, you might need to run BNC outside your LAN on a host that has unobstructed connection to the Internet.
     1219</p>
     1220
     1221<p><h4>2.2.2 <a name="ssl">SSL - Transport Layer Security</h4></p>
     1222<p>Communication with an Ntrip Broadcaster over Secure Sockets Layer (SSL) as well as the download of RINEX skeleton files when available from HTTPS websites requires the exchange of client and/or server certificates. Specify the path to a directory where you save certificates on your system. You may like to check out <u>http://software.rtcm-ntrip.org/wiki/Certificates</u> for a list of known Ntrip Server certificates. You may also just try communication via SSL to check out whether this is supported by the involved Ntrip Broadcaster. </p>
     1223<p>SSL communication may involve queries coming from the Ntrip Broadcaster or from a HTTPS website hosting RINEX skeletons. Such a query could show up under BNC's 'Log' tab especially when self-signed SSL certificates are used. Example:
     1224<pre>
     1225   SSL Error
     1226   Server Certificate Issued by:
     1227   GNSS Data Center
     1228   BKG (Bundesamt f&uuml;r Geod&auml;sie und Kartographie)
     1229   Cannot be verified
     1230
     1231   The issuer certificate of a locally looked up certificate could not be found
     1232   The root CA certificate is not trusted for this purpose
     1233   No certificates could be verified
     1234</pre>
     1235Queries should not be received by a client when a server uses official SSL certificates.
     1236</p>
     1237<p>
     1238Tick 'Ignore SSL authorization errors' if you generally trust the server and do not want to be bothered with this. Note that SSL communication is usually done over port 443.
     1239</p>
     1240
     1241<p><img src="IMG/screenshot40.png"/></p>
     1242<p><u>Figure 7:</u> BNC's 'Network' panel configured to ignore eventually occurring SSL error messages</p>
     1243
     1244<p><h4>2.3 <a name="general">General</h4></p>
     1245<p>
     1246The following defines general settings for BNC's logfile, file handling, reconfiguration on-the-fly, and auto-start.
     1247</p>
     1248
     1249<p><h4>2.3.1 <a name="genlog">Logfile - optional</h4></p>
     1250<p>
     1251Records of BNC's activities are shown in the 'Log' tab on the bottom of the main window. These logs can be saved into a file when a valid path is specified in the 'Logfile (full path)' field. The logfile name will automatically be extended by a string '_YYMMDD' for the current date. This leads to series of daily logfiles when running BNC continuously. Message logs cover the communication status between BNC and the Ntrip Broadcaster as well as problems that may occur in the communication link, stream availability, stream delay, stream conversion etc. All times are given in UTC. The default value for 'Logfile (full path)' is an empty option field, meaning that BNC logs will not be saved into a file.
     1252</p>
     1253<p>
     1254The following is an example for the content of a logfile written by BNC when operated in Single Point Positioning (SPP) mode:
     1255</p>
     1256<pre>
     125715-06-30 11:40:17 ========== Start BNC v2.12 (MAC) ==========
     125815-06-30 11:40:17 Panel 'PPP' active
     125915-06-30 11:40:17 CUT07: Get data in RTCM 3.x format
     126015-06-30 11:40:17 RTCM3EPH: Get data in RTCM 3.x format
     126115-06-30 11:40:17 Configuration read: PPP.conf, 2 stream(s)
     1262
     126315-06-30 11:40:21 2015-06-30_11:40:19.000 CUT07 X = -2364337.6814 Y = 4870283.8110 Z = -3360808.3085 NEU:  -0.0000  -0.0000  -0.0000 TRP:  +2.4026  -0.0001
     126415-06-30 11:40:22 2015-06-30_11:40:20.000 CUT07 X = -2364337.6853 Y = 4870283.8130 Z = -3360808.3082 NEU:  +1.1639  +0.6988  -2.1178 TRP:  +2.4018  +0.0003
     126515-06-30 11:40:23 2015-06-30_11:40:21.000 CUT07 X = -2364337.6862 Y = 4870283.8155 Z = -3360808.3107 NEU:  +0.1317  -0.4655  -4.4614 TRP:  +2.4009  +0.0009
     126615-06-30 11:40:24 2015-06-30_11:40:22.000 CUT07 X = -2364337.6864 Y = 4870283.8106 Z = -3360808.3099 NEU:  +0.1543  +0.2121  -1.0190 TRP:  +2.4022  +0.0009
     126715-06-30 11:40:25 2015-06-30_11:40:23.000 CUT07 X = -2364337.6861 Y = 4870283.8111 Z = -3360808.3105 NEU:  -0.9782  +0.0916  -2.3544 TRP:  +2.4017  +0.0013
     126815-06-30 11:40:26 2015-06-30_11:40:24.000 CUT07 X = -2364337.6884 Y = 4870283.8123 Z = -3360808.3103 NEU:  -0.5606  -0.0938  -1.9498 TRP:  +2.4018  +0.0016
     126915-06-30 11:40:27 2015-06-30_11:40:25.000 CUT07 X = -2364337.6913 Y = 4870283.8133 Z = -3360808.3122 NEU:  -0.1799  -0.1525  -4.8142 TRP:  +2.4007  +0.0025
     127015-06-30 11:40:28 2015-06-30_11:40:26.000 CUT07 X = -2364337.6919 Y = 4870283.8171 Z = -3360808.3184 NEU:  +0.7497  +0.7994  -2.0363 TRP:  +2.4018  +0.0032
     127115-06-30 11:40:29 2015-06-30_11:40:27.000 CUT07 X = -2364337.6923 Y = 4870283.8196 Z = -3360808.3230 NEU:  +0.8099  +0.5592  -2.8552 TRP:  +2.4015  +0.0039
     127215-06-30 11:40:30 2015-06-30_11:40:28.000 CUT07 X = -2364337.6960 Y = 4870283.8219 Z = -3360808.3222 NEU:  -0.2952  +1.9737  -4.5565 TRP:  +2.4008  +0.0047
     127315-06-30 11:40:31 2015-06-30_11:40:29.000 CUT07 X = -2364337.6982 Y = 4870283.8209 Z = -3360808.3209 NEU:  +0.3563  +2.1067  -5.5327 TRP:  +2.4005  +0.0057
     1274...
     1275</pre>
     1276
     1277<p><h4>2.3.2 <a name="genapp">Append Files - optional</h4></p>
     1278<p>
     1279When BNC is started, new files are created by default and existing files with the same name will be overwritten. However, users might want to append existing files following a restart of BNC, a system crash or a BNC crash. Tick 'Append files' to continue with existing files and keep what has been recorded so far. Note that option 'Append files' affects all types of files created by BNC.
     1280</p>
     1281
     1282<p><h4>2.3.3 <a name="genconf">Reread Configuration - optional</h4></p>
     1283<p>
     1284When operating BNC online in 'no window' mode (command line option -nw), some configuration options can nevertheless be changed on-the-fly without interrupting the running process. For that, you force the program to reread parts of its configuration in pre-defined intervals from disk. Select '1 min', '1 hour', or '1 day' to let BNC reread on-the-fly changeable configuration options every full minute, hour, or day. This lets in-between edited options become effective without interrupting uninvolved threads.
     1285</p>
     1286
     1287<p>
     1288Note that following configuration options saved on disk can be changed/edited on-the-fly while BNC is already processing data:
     1289</p>
     1290<p>
     1291<ul>
     1292<li>'mountPoints' to change the selection of streams to be processed, see section 'Streams';</li>
     1293<li>'outWait' to change the 'Wait for full obs epoch' option, see section 'Feed Engine';</li>
     1294<li>'outSampl' to change the 'Sampling' option, see section 'Feed Engine';</li>
     1295<li>'outFile' to change the 'File' name where synchronized observations are saved in plain ASCII format.</li>
     1296</ul>
     1297</p>
     1298<p>
     1299</p>
     1300
     1301<p><h4>2.3.4 <a name="genstart">Auto Start - optional</h4></p>
     1302<p>
     1303You may like to auto-start BNC at startup time in window mode with pre-assigned configuration options. This may be required e.g. immediately after booting your system. Tick 'Auto start' to supersede the usage of the 'Start' button. Make sure that you maintain a link to BNC for that in your Autostart directory (Windows systems) or call BNC in a script below directory /etc/init.d (Unix/Linux/Mac OS X systems).
     1304</p>
     1305<p>
     1306See BNC's command line option '-nw' for an auto-start of BNC in 'no window' mode.
     1307</p>
     1308
     1309<p><h4>2.3.5 <a name="rawout">Raw Output File - optional</h4></p>
     1310<p>
     1311BNC can save all data coming in through various streams in one daily file. The information is recorded in the specified 'Raw output file' in the received order and format. This feature allows a BNC user to run the PPP option offline with observations, Broadcast Corrections, and Broadcast Ephemeris being read from a previously saved file. It supports the offline repetition of a real-time situation for debugging purposes (Record &amp; Replay functionality) and is not meant for post processing.
     1312</p>
     1313<p>
     1314Data will be saved in blocks in the received format separated by ASCII time stamps like (example):
     1315<pre>
     1316   2010-08-03T18:05:28 RTCM3EPH RTCM_3 67
     1317</pre>
     1318</p>
     1319<p>
     1320This example block header tells you that 67 bytes were saved in the data block following this time stamp. The information in this block is encoded in RTCM Version 3 format, comes from mountpoint RTCM3EPH and was received at 18:05:28 UTC on 2010-08-03. BNC adds its own time stamps in order to allow the reconstruction of a recorded real-time situation.
     1321</p>
     1322<p>
     1323The default value for 'Raw output file' is an empty option field, meaning that BNC will not save all raw data into one single daily file.
     1324</p>
     1325
     1326<p><h4>2.4 <a name="rinex">RINEX Observations</h4></p>
     1327<p>
     1328Observations will be converted to RINEX if they come in either RTCM Version 2 or RTCM Version 3 format. Depending on the RINEX version and incoming RTCM message types, files generated by BNC may contain data from GPS, GLONASS, Galileo, SBAS, QZSS, and/or BDS (BeiDou). In case an observation type is listed in the RINEX header but the corresponding observation is unavailable, its value is set to zero '0.000' or left blank. Note that the 'RINEX TYPE' field in the RINEX Version 3 Observation file header is always set to 'M(MIXED)' or 'Mixed' even if the file only contains data from one system.
     1329</p>
     1330<p>
     1331It is important to understand that converting RTCM streams to RINEX files requires a priori information on observation types for specifying a complete RINEX header. Regarding the RINEX Version 2 file header, BNC simply introduces all observation types defined in the Version 2 standard and later reports "0.000" for observations which are not received. However, following this approach is not possible for RINEX Version 3 files from RTCM Version 3 MSM streams because of the huge number of observation types, which might in principle show up. The solution implemented in BNC is to start with RINEX Version 3 observation type records from skeleton files (see section 'Skeleton Extension' and 'Skeleton Mandatory') and switch to a default selection of observation types when such file is not available or does not contain the required information. The following is the default selection of observation types specified for a RINEX Version 3 file:
     1332</p>
     1333<pre>
     1334C    9 C2I L2I S2I C6I L6I S6I C7I L7I S7I                  SYS / # / OBS TYPES
     1335E   12 C1X L1X SX1 C5X L5X SX5 C7X L7X SX7 C8X L8X SX8      SYS / # / OBS TYPES
     1336G   15 C1C L1C S1C C1W L1W S1W C2X L2X S2X C2W L2W S2W C5X  SYS / # / OBS TYPES
     1337       L5X S5X                                              SYS / # / OBS TYPES
     1338J   24 C1C L1C S1C C1S L1S S1S C1L L1L S1L C1X L1X S1X C2S  SYS / # / OBS TYPES
     1339       L2S S2S C2L L2L S2L C2X L2X S2X C5X L5X S5X          SYS / # / OBS TYPES
     1340R   12 C1C L1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P      SYS / # / OBS TYPES
     1341S    9 C1C L1C S1C C5I L5I S5I C5Q L5Q S5Q                  SYS / # / OBS TYPES
     1342</pre>
     1343
     1344<p>
     1345Please note that RTCM Version 3 messages 1084 for GLONASS observations do not contain the GLONASS channel numbers. These observation messages can only be converted to RINEX when you add messages which include the channel numbers. This could be done by means of an additional stream carrying 1087 GLONASS observation messages or an additional stream carrying 1020 GLONASS ephemeris messages. You could also consider setting up a stream which contains both, the 1084 and the 1020 messages.
     1346</p>
     1347<p>
     1348The screenshot below shows an example setup of BNC when converting streams to RINEX. Streams are coming from various Ntrip Broadcasters as well as from a serial communication link. Specifying a decoder string 'ZERO' would mean to not convert the affected stream but save its content as received. The 'SSL Error' recorded in the 'Log' tab is caused by the fact that observation stream downloads from IGS and MGEX Broadcasters initiate the download of RINEX skeleton files from a HTTPS (TLS/SSL) website and BNC has been configured in this example to ignore SSL errors as shown in the preceding 'Network' panel screenshot.
     1349</p>
     1350
     1351<p><img src="IMG/screenshot16.png"/></p>
     1352<p><u>Figure 8:</u> BNC translating incoming observation streams to 15 min RINEX Version 3 Observation files</p>
     1353
     1354<p><h4>2.4.1 <a name="rnxname">RINEX Filenames</h4></p>
     1355<p>
     1356The default for RINEX filenames in BNC follows the convention of RINEX Version 2. However, the software provides options to alternatively follow the filename convention of RINEX Version 3. RINEX Version 2 filenames are derived by BNC from the first 4 characters of the corresponding stream's mountpoint (4-Char Station ID). For example, data from mountpoints FRANKFURT and WETTZELL will have hourly RINEX Observation files named</p>
     1357
     1358<pre>
     1359   FRAN{ddd}{h}.{yy}O
     1360   WETT{ddd}{h}.{yy}O
     1361</pre>
     1362<p>
     1363where 'ddd' is the day of year, 'h' is a letter which corresponds to an hour long UTC time block and 'yy' is the year.
     1364</p>
     1365<p>
     1366If there is more than one stream with identical 4-Char Station ID (same first 4 characters for their mountpoints), the mountpoint strings are split into two sub-strings and both become part of the RINEX filename. For example, when simultaneously retrieving data from mountpoints FRANKFURT and FRANCE, their hourly RINEX Version 2 Observation files are named as</p>
     1367<pre>
     1368   FRAN{ddd}{h}_KFURT.{yy}O
     1369   FRAN{ddd}{h}_CE.{yy}O
     1370</pre>
     1371<p>
     1372If several streams show up with exactly the same mountpoint name (example: BRUS0 from <u>www.euref-ip.net</u> and BRUS0 from <u>www.igs-ip.net</u>), BNC adds an integer number to the filename, leading e.g. to hourly RINEX Version 2 Observation files like</p>
     1373<pre>
     1374   BRUS{ddd}{h}_0.{yy}O
     1375   BRUS{ddd}{h}_1.{yy}O
     1376</pre>
     1377<p>
     1378Note that RINEX Version 2 filenames for all intervals less than 1 hour follow the filename convention for 15 minutes RINEX Version 2 Observation files e.g.</p>
     1379<pre>
     1380   FRAN{ddd}{h}{mm}.{yy}O
     1381</pre>
     1382<p>
     1383where 'mm' is the starting minute within the hour.
     1384</p>
     1385
     1386<p>
     1387In case of RINEX Version 3 filenames, the following convention holds:
     1388
     1389<p>
     1390<table>
     1391<tr><td><b>Filename Parameter&nbsp; &nbsp;</b></td><td><b>&nbsp;# Char.</b></td><td><b>&nbsp; Meaning</b></td></tr>
     1392<tr><td>Name</td><td>&nbsp; 9</td><td>&nbsp; Site, station and country code</td></tr>
     1393<tr><td>S</td><td>&nbsp; 1</td><td>&nbsp; Data source</td></tr>
     1394<tr><td>Start Time</td><td>&nbsp; 11</td><td>&nbsp; YYYYDDDHHMM</td></tr>
     1395<tr><td>Period</td><td>&nbsp; 3</td><td>&nbsp; File period</td></tr>
     1396<tr><td>Obs. Freq.</td><td>&nbsp; 3</td><td>&nbsp; Observation frequency</td></tr>
     1397<tr><td>Content</td><td>&nbsp; 2</td><td>&nbsp; Content type</td></tr>
     1398<tr><td>Format</td><td>&nbsp; 3</td><td>&nbsp; File format</td></tr>
     1399<tr><td>Compression</td><td>&nbsp; 2-3</td><td>&nbsp; Compression method (optional)</td></tr>
     1400</table>
     1401</p>
     1402<p>
     1403Example for Mixed RINEX Version 3 GNSS observation filename, file containing 1 hour of data, one observation every second, 'MO' standing for 'Mixed Observations':
     1404<pre>
     1405   ALGO00CAN_R_20121601000_01H_01S_MO.rnx
     1406</pre>
     1407</p>
     1408<p>
     1409Note that filename details are produced from the stream's mountpoint as well as corresponding BNC settings and meta data from the Ntrip Broadcaster source-table.
     1410</p>
     1411
     1412<p><h4>2.4.2 <a name="rnxdir">Directory - optional</h4></p>
     1413<p>
     1414Here you can specify the path to where the RINEX Observation files will be stored. If the specified directory does not exist, BNC will not create RINEX Observation files. Default value for 'Directory' is an empty option field, meaning that no RINEX Observation files will be written.
     1415</p>
     1416
     1417<p><h4>2.4.3 <a name="rnxinterval">File Interval - mandatory if 'Directory' is set</h4></p>
     1418<p>
     1419Select the length of the RINEX Observation file to be generated. The default value is 15 minutes.
     1420</p>
     1421
     1422<p><h4>2.4.4 <a name="rnxsample">Sampling - mandatory if 'Directory' is set </h4></p>
     1423<p>
     1424Select the RINEX Observation sampling interval in seconds. A value of zero '0' tells BNC to store all received epochs into RINEX. This is the default value.
     1425</p>
     1426
     1427<p><h4>2.4.5 <a name="rnxskl">Skeleton Extension - optional</h4></p>
     1428<p>
     1429Whenever BNC starts to generate RINEX Observation files (and then once every day at midnight), it first tries to retrieve information needed for RINEX headers from so-called public RINEX header skeleton files which are derived from sitelogs. An HTTP or HTTPS link to a directory containing these skeleton files may be available through data field number 7 of the affected NET record in the source-table. See <u>http://www.epncb.oma.be:80/stations/log/skl/brus.skl</u> for an example of a public RINEX header skeleton file for EPN station Brussels. Note that the download of RINEX skeleton files from HTTPS websites requires the exchange of client and/or server certificates. Clarify 'SSL' options offered through panel 'Network' for details.
     1430</p>
     1431<p>
     1432Sometimes public RINEX header skeleton files are not available, their content is not up to date, or you need to put additional/optional records in the RINEX header. For that, BNC allows using personal skeleton files that contain the header records you would like to include. You can derive a personal RINEX header skeleton file from the information given in an up to date sitelog. A file in the RINEX Observations 'Directory' with a 'Skeleton extension' suffix is interpreted by BNC as a personal RINEX header skeleton file for the corresponding stream.
     1433</p>
     1434<p>
     1435When producing RINEX Observation files from mountpoints (examples) 'BRUS0', 'FRANKFURT', and 'WETTZELL', the following skeleton filenames would be accepted
     1436</p>
     1437<pre>
     1438   BRUS.skl
     1439   FRAN.skl
     1440   WETT.skl
     1441</pre>
     1442<p>
     1443if 'Skeleton extension' is set to 'skl'.
     1444</p>
     1445<p>
     1446Note the following regulations regarding personal RINEX header skeleton files:
     1447<ul>
     1448<li>If such a file exists in the 'RINEX directory', the corresponding public RINEX header skeleton file is ignored. The RINEX header is generated solely from the content of the personal skeleton.</li>
     1449<li>Personal skeletons should contain a complete first header record of type
     1450<br>- &nbsp; RINEX VERSION / TYPE<br></li>
     1451<li>They should then contain an empty header record of type
     1452<br>- &nbsp; PGM / RUN BY / DATE<br>
     1453BNC will complete this line and include it in the RINEX file header.</li>
     1454<li>They should further contain complete header records of type
     1455<br>- &nbsp; MARKER NAME
     1456<br>- &nbsp; OBSERVER / AGENCY
     1457<br>- &nbsp; REC # / TYPE / VERS
     1458<br>- &nbsp; ANT # / TYPE
     1459<br>- &nbsp; APPROX POSITION XYZ
     1460<br>- &nbsp; ANTENNA: DELTA H/E/N
     1461<br>- &nbsp; WAVELENGTH FACT L1/2 (RINEX Version 2)
     1462<br>- &nbsp; SYS / # / OBS TYPES (for RINEX Version 3 files, will be ignored in Version 2 files)</li>
     1463<li>They may contain any other optional complete header record as defined in the RINEX documentation.</li>
     1464<li>They should also contain an empty header record of type
     1465<br>- &nbsp; # / TYPES OF OBSERV (only RINEX Version 2, will be ignored when in Version 3 files)
     1466<br>BNC will include these lines in the final RINEX file header together with an additional
     1467<br>- &nbsp; COMMENT
     1468<br>line describing the source of the stream.</li>
     1469<li>They should finally contain an empty last header record of type
     1470<br>- &nbsp; END OF HEADER</li>
     1471
     1472<li>They must not contain a header record of type
     1473<br>- &nbsp; TIME OF FIRST OBS</li>
     1474
     1475</ul>
     1476<p>
     1477If neither a public nor a personal RINEX header skeleton file is available for BNC, a default header will be used.
     1478</p>
     1479<p>
     1480The following is a skeleton example for a RINEX file:
     1481</p>
     1482<p>
     1483<pre>
     1484                    OBSERVATION DATA    M (MIXED)           RINEX VERSION / TYPE
     1485                                                            PGM / RUN BY / DATE
     1486CUT0                                                        MARKER NAME         
     148759945M001                                                   MARKER NUMBER       
     14885023K67889          TRIMBLE NETR9       5.01                REC # / TYPE / VERS
     14894928353386          TRM59800.00     SCIS                    ANT # / TYPE       
     1490 -2364337.2699  4870285.5624 -3360809.8398                  APPROX POSITION XYZ
     1491        0.0000        0.0000        0.0000                  ANTENNA: DELTA H/E/N
     1492gnss@curtin.edu.au  CUT                                     OBSERVER / AGENCY   
     1493C   10 C1I L1I D1I S1I C6I L6I S6I C7I L7I S7I              SYS / # / OBS TYPES
     1494E   13 C1X L1X D1X S1X C5X L5X S5X C7X L7X S7X C8X L8X S8X  SYS / # / OBS TYPES
     1495G   13 C1C L1C D1C S1C C2W L2W S2W C2X L2X S2X C5X L5X S5X  SYS / # / OBS TYPES
     1496J   19 C1C L1C D1C S1C C1X L1X S1X C1Z L1Z S1Z C2X L2X S2X  SYS / # / OBS TYPES
     1497       C5X L5X S5X C6L L6L S6L                              SYS / # / OBS TYPES
     1498R   13 C1C L1C D1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P  SYS / # / OBS TYPES
     1499S    7 C1C L1C D1C S1C C5I L5I S5I                          SYS / # / OBS TYPES
     1500PORTIONS OF THIS HEADER GENERATED BY THE IGS CB FROM        COMMENT             
     1501SITELOG cut0_20150507.log                                   COMMENT             
     1502                                                            END OF HEADER
     1503</pre>
     1504<p>
     1505
     1506<p><h4>2.4.6 <a name="sklMandat">Skeleton Mandatory - optional</h4></p>
     1507<p>
     1508Tick check box 'Skeleton mandatory' in case you want that RINEX files are only produced when skeleton files are available for BNC. If no skeleton file is available for a particular source, then no RINEX observation file will be produced from the affected stream.
     1509</p>
     1510<p>Note that a skeleton file contains RINEX header information such as receiver and antenna types. In case of stream conversion to RINEX Version 3, a skeleton file should also contain information on potentially available observation types. A missing skeleton file will force BNC to only save a default set of RINEX 3 observation types.
     1511</p>
     1512
     1513<p><h4>2.4.7 <a name="rnxscript">Script - optional</h4></p>
     1514<p>
     1515Whenever a RINEX Observation file is saved, you might want to compress, copy or upload it immediately via FTP. BNC allows you to execute a script/batch file to carry out these operations. To do that, specify the full path to such script/batch file. BNC will pass the RINEX Observation file path to the script as a command line parameter (%1 on Windows systems, $1 on Unix/Linux/Mac OS X systems).
     1516</p>
     1517<p>
     1518The triggering event for calling the script or batch file is the end of a RINEX Observation file 'Interval'. If that is overridden by a stream outage, the triggering event is the stream reconnection.
     1519</p>
     1520<p>
     1521As an alternative to initiating file uploads through BNC, you may like to call an upload script or batch file through your crontable or Task Scheduler (independent from BNC) once every one or two minutes after the end of each RINEX file 'Interval'.
     1522</p>
     1523
     1524<p><h4>2.4.8 <a name="rnxvers2">Version 2 - optional</h4></p>
     1525<p>
     1526GNSS observation data are generally hold available within BNC according to attributes as defined in RINEX Version 3. These attributes describe the tracking mode or channel when generating the observation signals. Capital letters specifying signal generation attributes are A, B, C, D, I, L, M, N, P, Q, S, W, X, Y, and Z, see RINEX Version 3 documentation. Although RINEX Version 3 with its signal generation attributes is the internal default processing format for BNC, there are two applications where the program is explicitly required to produce data files in RINEX Version 2 format:
     1527<ol type=1>
     1528<li>When saving the content of incoming observation streams in RINEX Version 2 files as described in this section.</li>
     1529<li>When editing or concatenating RINEX 3 files to save them in Version 2 format, see section on 'RINEX Editing & QC'.</li>
    14751530</ol>
    1476 <blockquote>
    1477 <div>Purpose: Concatenate several RINEX Version 3 files to produce one compiled file and edit the marker name in the file header. The sampling interval is set to 30 seconds. See section &#8216;RINEX Editing &amp; QC&#8217; in the documentation for examples on how to call BNC from command line in &#8216;no window&#8217; mode for RINEX file editing, concatenation and quality check.</div></blockquote>
    1478 <ol class="arabic simple" start="5">
    1479 <li>Configuration File <code class="docutils literal"><span class="pre">RinexQC.bnc</span></code></li>
    1480 </ol>
    1481 <blockquote>
    1482 <div>Purpose: Check the quality of a RINEX Version 3 file by means of a multipath analysis. Results are saved on disk in terms of a plot in PNG format. See section &#8216;RINEX Editing &amp; QC&#8217; in the documentation for examples on how to call BNC from command line in &#8216;no window&#8217; mode for RINEX file editing, concatenation and quality check.</div></blockquote>
    1483 <ol class="arabic simple" start="6">
    1484 <li>Configuration File <code class="docutils literal"><span class="pre">RTK.bnc</span></code></li>
    1485 </ol>
    1486 <blockquote>
    1487 <div>Purpose: Feed a serially connected receiver with observations from a nearby reference station for conventional RTK. The stream is scanned for RTCM messages. Message type numbers and latencies of incoming observations are reported in BNC&#8217;s logfile.</div></blockquote>
    1488 <ol class="arabic simple" start="7">
    1489 <li>Configuration File <code class="docutils literal"><span class="pre">FeedEngine.bnc</span></code></li>
    1490 </ol>
    1491 <blockquote>
    1492 <div>Purpose: Feed a real-time GNSS engine with observations from remote reference stations. The configuration pulls a single stream from an Ntrip Broadcaster. You could also pull several streams from different casters. Incoming observations are decoded, synchronized, output through a local IP port and also saved into a file. Failure and recovery thresholds are specified to inform about outages.</div></blockquote>
    1493 <ol class="arabic simple" start="8">
    1494 <li>Configuration File <code class="docutils literal"><span class="pre">PPP.bnc</span></code></li>
    1495 </ol>
    1496 <blockquote>
    1497 <div>Purpose: Precise Point Positioning from observations of a rover receiver. The configuration reads RTCM Version 3 observations, a Broadcast Ephemeris stream and a stream with Broadcast Corrections. Positions are saved in the logfile.</div></blockquote>
    1498 <ol class="arabic simple" start="9">
    1499 <li>Configuration File <code class="docutils literal"><span class="pre">PPPNet.bnc</span></code></li>
    1500 </ol>
    1501 <blockquote>
    1502 <div>Purpose: Precise Point Positioning for several rovers or receivers from an entire network of reference stations in one BNC job. The possible maximum number of PPP solutions per job depends on the processing power of the hosting computer. This example configuration reads two RTCM Version 3 observation streams, a Broadcast Ephemeris stream and a stream with Broadcast Corrections. PPP Results for the two stations are saved in PPP logfiles.</div></blockquote>
    1503 <ol class="arabic simple" start="10">
    1504 <li>Configuration File <code class="docutils literal"><span class="pre">PPPQuickStart.bnc</span></code></li>
    1505 </ol>
    1506 <blockquote>
    1507 <div>Purpose: Precise Point Positioning in Quick-Start mode from observations of a static receiver with precisely known position. The configuration reads RTCM Version 3 observations, Broadcast Corrections and a Broadcast Ephemeris stream. Positions are saved in NMEA format on disc. They are also output through IP port for real-time visualization with tools like RTKPLOT. Positions are saved in the logfile.</div></blockquote>
    1508 <ol class="arabic simple" start="11">
    1509 <li>Configuration File <code class="docutils literal"><span class="pre">PPPPostProc.bnc</span></code></li>
    1510 </ol>
    1511 <blockquote>
    1512 <div>Purpose: Precise Point Positioning in post processing mode. BNC reads RINEX Version 3 Observation and Navigation files and a Broadcast Correction file. PPP processing options are set to support the Quick-Start mode. The output is saved in a specific post processing logfile and contains coordinates derived over time following the implemented PPP filter algorithm.</div></blockquote>
    1513 <ol class="arabic simple" start="12">
    1514 <li>Configuration File <code class="docutils literal"><span class="pre">PPPGoogleMaps.bnc</span></code></li>
    1515 </ol>
    1516 <blockquote>
    1517 <div>Purpose: Track BNC&#8217;s point positioning solutions using Google Maps or OpenStreetMap as background. BNC reads a RINEX Observation file and a RINEX Navigation file to carry out a &#8216;Standard Point Positioning&#8217; solution in post processing mode. Although this is not a real-time application, it requires the BNC host to be connected to the Internet. Specify a computation speed, then hit button &#8216;Open Map&#8217; to open the track map, then hit &#8216;Start&#8217; to visualize receiver positions on top of GM/OSM maps.</div></blockquote>
    1518 <ol class="arabic simple" start="13">
    1519 <li>Configuration File <code class="docutils literal"><span class="pre">SPPQuickStartGal.bnc</span></code></li>
    1520 </ol>
    1521 <blockquote>
    1522 <div>Purpose: Single Point Positioning in Quick-Start mode from observations of a static receiver with quite precisely known position. The configuration uses GPS, GLONASS and Galileo observations and a Broadcast Ephemeris stream.</div></blockquote>
    1523 <ol class="arabic simple" start="14">
    1524 <li>Configuration File <code class="docutils literal"><span class="pre">SaveSp3.bnc</span></code></li>
    1525 </ol>
    1526 <blockquote>
    1527 <div>Purpose: Produces SP3 files from a Broadcast Ephemeris stream and a Broadcast Correction stream. The Broadcast Correction stream is formally introduced in BNC&#8217;s &#8216;Combine Corrections&#8217; table. Note that producing SP3 requires an ANTEX file because SP3 file content should be referred to CoM.</div></blockquote>
    1528 <ol class="arabic simple" start="15">
    1529 <li>Configuration File <code class="docutils literal"><span class="pre">Sp3ETRF2000PPP.bnc</span></code></li>
    1530 </ol>
    1531 <blockquote>
    1532 <div>Purpose: Produce SP3 files from a Broadcast Ephemeris stream and a stream carrying ETRF2000 Broadcast Corrections. The Broadcast Correction stream is formally introduced in BNC&#8217;s &#8216;Combine Corrections&#8217; table. The configuration leads to a SP3 file containing orbits also referred to ETRF2000. Pulling in addition observations from a reference station at precisely known ETRF2000 position allows comparing an &#8216;INTERNAL&#8217; PPP solution with a known ETRF2000 reference coordinate.</div></blockquote>
    1533 <ol class="arabic simple" start="16">
    1534 <li>Configuration File <code class="docutils literal"><span class="pre">Upload.bnc</span></code></li>
    1535 </ol>
    1536 <blockquote>
    1537 <div>Purpose: Upload orbits and clocks from a real-time GNSS engine to an Ntrip Broadcaster. For that the configuration reads precise orbits and clocks in RTNET format. It also reads a stream carrying Broadcast Ephemeris. BNC converts the orbits and clocks into Broadcast Corrections and encodes them to RTCM Version 3 SSR messages to finally upload them to an Ntrip Broadcaster. The Broadcast Correction stream is referred to satellite Antenna Phase Center (APC) and reference system IGS08. Orbits are saved on disk in SP3 format and clocks are saved in Clock RINEX format.</div></blockquote>
    1538 <ol class="arabic simple" start="17">
    1539 <li>Configuration File <code class="docutils literal"><span class="pre">Combi.bnc</span></code></li>
    1540 </ol>
    1541 <blockquote>
    1542 <div>Purpose: Pull several streams carrying Broadcast Corrections and a Broadcast Ephemeris stream from an Ntrip Broadcaster to produce a combined Broadcast Correction stream. BNC encodes the combination product in RTCM Version 3 SSR messages and uploads that to an Ntrip Broadcaster. The Broadcast Correction stream is referred to satellite Antenna Phase Center (APC) and not to satellite Center of Mass (CoM). Its reference system is IGS08. Orbits are saved in SP3 format (referred to CoM) and clocks in Clock RINEX format.</div></blockquote>
    1543 <ol class="arabic simple" start="18">
    1544 <li>Configuration File <code class="docutils literal"><span class="pre">CombiPPP.bnc</span></code></li>
    1545 </ol>
    1546 <blockquote>
    1547 <div>Purpose: This configuration equals the &#8216;Combi.bnc&#8217; configuration. However, the combined Broadcast Corrections are in addition used for an &#8216;INTERNAL&#8217; PPP solution based on observations from a static reference station with known precise coordinates. This allows a continuous quality check of the combination product through observing coordinate displacements.</div></blockquote>
    1548 <ol class="arabic simple" start="19">
    1549 <li>Configuration File <code class="docutils literal"><span class="pre">UploadEph.bnc</span></code></li>
    1550 </ol>
    1551 <blockquote>
    1552 <div>Purpose: Pull a number of streams from reference stations to get hold of contained Broadcast Ephemeris messages. They are encoded to RTCM Version 3 format and uploaded for the purpose of providing a Broadcast Ephemeris stream with an update rate of 5 seconds.</div></blockquote>
    1553 <ol class="arabic simple" start="20">
    1554 <li>Configuration File <code class="docutils literal"><span class="pre">CompareSp3.bnc</span></code></li>
    1555 </ol>
    1556 <blockquote>
    1557 <div>Purpose: Compare two SP3 files to calculate RMS values for orbit and clock differences. GPS satellite G05 and GLONASS satellite R18 are excluded from this comparison. Comparison results are saved in a logfile.</div></blockquote>
    1558 <ol class="arabic simple" start="21">
    1559 <li>Configuration File <code class="docutils literal"><span class="pre">Empty.bnc</span></code></li>
    1560 </ol>
    1561 <blockquote>
    1562 <div>Purpose: Provide an empty example configuration file for BNC which only contains default settings.</div></blockquote>
    1563 </div>
    1564 <div class="section" id="command-line-configuration-options">
    1565 <h3>Command Line configuration options<a class="headerlink" href="#command-line-configuration-options" title="Permalink to this headline">¶</a></h3>
    1566 <p>The following configuration examples make use of BNC&#8217;s &#8216;Command Line Interface&#8217; (CLI). Configuration options are exclusively specified via command line. No configuration file is used. Examples are provided as shell scripts for a Linux system. They call BNC in &#8216;no window&#8217; batch mode (command line option <code class="docutils literal"><span class="pre">-nw</span></code>). The scripts expect &#8216;Example_Configs&#8217; to be the current working directory.</p>
    1567 <ol class="arabic simple">
    1568 <li>Shell Script <code class="docutils literal"><span class="pre">RinexQC.sh</span></code></li>
    1569 </ol>
    1570 <blockquote>
    1571 <div>Purpose: Equals configuration file example <code class="docutils literal"><span class="pre">RinexQC.bnc</span></code>, checks the quality of a RINEX Version 3 file by means of a multipath analysis. Virtual X-Server &#8216;Xvfb&#8217; is operated while producing plot files in PNG format. BNC is offline. All results are saved on disk.</div></blockquote>
    1572 <ol class="arabic simple" start="2">
    1573 <li>Shell Script <code class="docutils literal"><span class="pre">RinexConcat.sh</span></code></li>
    1574 </ol>
    1575 <blockquote>
    1576 <div>Purpose: Equals configuration file example <code class="docutils literal"><span class="pre">RinexConcat.bnc</span></code>, concatenates several RINEX Version 3 files to produce one compiled file and edit the marker name in the file header. The sampling interval is set to 30 seconds.</div></blockquote>
    1577 <ol class="arabic simple" start="3">
    1578 <li>Shell Script <code class="docutils literal"><span class="pre">RinexEph.sh</span></code></li>
    1579 </ol>
    1580 <blockquote>
    1581 <div>Purpose: Equals configuration file example <code class="docutils literal"><span class="pre">RinexEph.bnc</span></code>, converts a RTCM stream with navigation messages to RINEX Navigation files. The configuration pulls a RTCM Version 3 stream with Broadcast Ephemeris coming from the real-time EUREF and IGS networks and saves hourly RINEX Version 3 Navigation files. BNC runs online until it&#8217;s terminated after 10 seconds. See <a class="reference external" href="http://igs.bkg.bund.de/ntrip/ephemeris">http://igs.bkg.bund.de/ntrip/ephemeris</a> for further real-time Broadcast Ephemeris resources.</div></blockquote>
    1582 <ol class="arabic simple" start="4">
    1583 <li>Shell Script <code class="docutils literal"><span class="pre">ScanLate.sh</span></code></li>
    1584 </ol>
    1585 <blockquote>
    1586 <div>Purpose: Scan an observation stream for contained RTCM message types, print observation latencies. The output is saved in a logfile. Latencies are reported every 10 seconds. BNC runs online until it&#8217;s terminated after 20 seconds.</div></blockquote>
    1587 <ol class="arabic simple" start="5">
    1588 <li>Shell Script <code class="docutils literal"><span class="pre">RinexObs.sh</span></code></li>
    1589 </ol>
    1590 <blockquote>
    1591 <div>Purpose: Equals configuration file example <code class="docutils literal"><span class="pre">RinexObs.bnc</span></code>, converts RTCM streams to RINEX Observation files. The configuration pulls streams from two Ntrip Broadcasters using Ntrip Version 1 to generate 15min 1Hz RINEX Version 3 Observation files. See <a class="reference external" href="http://igs.bkg.bund.de/ntrip/observations">http://igs.bkg.bund.de/ntrip/observations</a> for observation stream resources. BNC runs online until it&#8217;s terminated after 30 seconds.</div></blockquote>
    1592 </div>
    1593 <div class="section" id="command-line-configuration-options-overwriting-configuration-file-options">
    1594 <h3>Command Line configuration options overwriting Configuration File options<a class="headerlink" href="#command-line-configuration-options-overwriting-configuration-file-options" title="Permalink to this headline">¶</a></h3>
    1595 <p>For specific applications you may like to use your own set of standard configuration options from a configuration file and update some of its content via command line. When using a configuration file together with command line configuration options in one BNC call, the command line configuration options will always overrule options contained in the configuration file:</p>
    1596 <p>Shell script <code class="docutils literal"><span class="pre">CompareSp3.sh</span></code>.</p>
    1597 <p>Purpose: Equals configuration file example <code class="docutils literal"><span class="pre">CompareSp3.bnc</span></code>, compares two SP3 files to calculate RMS values for orbit and clock differences. However, instead of excluding GPS satellite G05 and GLONASS satellite R18 from the comparison as specified in <code class="docutils literal"><span class="pre">CompareSp3.bnc</span></code>, GPS satellite G06 and all GLONASS satellites are excluded via command line option. BNC runs offline. Comparison results are saved in a logfile.</p>
    1598 </div>
    1599 </div>
    1600 <span id="document-chapter5"></span><span class="target" id="index-0"></span><div class="section" id="bnc-software-settings">
    1601 <h2>BNC software settings<a class="headerlink" href="#bnc-software-settings" title="Permalink to this headline">¶</a></h2>
    1602 <p>The general documentation approach is to create a separate chapter for each processing option in a sequence which follows the layout of BNC&#8217;s Graphical User Interface (GUI). The advantage is that searching for help by means of the document&#8217;s Table of Contents (TOC) is quite convenient.</p>
    1603 <p>The following chapters describe how to set BNC program options. They explain the &#8216;Top Menu Bar&#8217;, the &#8216;Settings Canvas&#8217; with the processing options, the content of the &#8216;Streams Canvas&#8217; and &#8216;Logging Canvas&#8217;, and the &#8216;Bottom Menu Bar&#8217;.</p>
    1604 <div class="section" id="top-menu-bar">
    1605 <span id="index-1"></span><h3>Top Menu Bar<a class="headerlink" href="#top-menu-bar" title="Permalink to this headline">¶</a></h3>
    1606 <p>The top menu bar allows selecting a font for the BNC windows, save configured options, or quit the program execution. It also provides access to the program&#8217;s documentation.</p>
    1607 <div class="section" id="file">
    1608 <h4>File<a class="headerlink" href="#file" title="Permalink to this headline">¶</a></h4>
    1609 <p>The &#8216;File&#8217; button lets you</p>
    1610 <ul class="simple">
    1611 <li>Select an appropriate font. Use smaller font size if the BNC main window exceeds the size of your screen.</li>
    1612 <li>Reread and save selected options in configuration file. When using &#8216;Reread &amp; Save Configuration&#8217; while BNC is already processing data, some configuration options become immediately effective on-the-fly without interrupting uninvolved threads while all of them are saved on disk. See section &#8216;Reread Configuration&#8217; for a list of on-the-fly changeable configuration options.</li>
    1613 <li>Quit the BNC program.</li>
    1614 </ul>
    1615 </div>
    1616 <div class="section" id="help">
    1617 <h4>Help<a class="headerlink" href="#help" title="Permalink to this headline">¶</a></h4>
    1618 <p>The &#8216;Help&#8217; button provides access to</p>
    1619 <ul class="simple">
    1620 <li>Help contents. You may keep the &#8216;Help Contents&#8217; window open while configuring BNC.</li>
    1621 <li>A &#8216;Flow Chart&#8217; showing BNC linked to a real-time GNSS network engine such as RTNET.</li>
    1622 <li>General information about BNC. Close the &#8216;About BNC&#8217; window to continue working with BNC.</li>
    1623 </ul>
    1624 </div>
    1625 </div>
    1626 <div class="section" id="network">
    1627 <span id="index-2"></span><h3>Network<a class="headerlink" href="#network" title="Permalink to this headline">¶</a></h3>
    1628 <p>You may need to specify a proxy when running BNC in a protected network. You may also like to use the Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL) cryptographic protocols for secure Ntrip communication over the Internet.</p>
    1629 <div class="section" id="proxy-usage-in-a-protected-lan">
    1630 <span id="index-3"></span><h4>Proxy - Usage in a protected LAN<a class="headerlink" href="#proxy-usage-in-a-protected-lan" title="Permalink to this headline">¶</a></h4>
    1631 <p>If you are running BNC within a protected Local Area Network (LAN), you might need to use a proxy server to access the Internet. Enter your proxy server IP and port number in case one is operated in front of BNC. If you do not know the IP and port of your proxy server, check the proxy server settings in your Internet browser or ask your network administrator.</p>
    1632 <p>Note that IP streaming is often not allowed in a LAN. In this case you need to ask your network administrator for an appropriate modification of the local security policy or for the installation of a TCP relay to the Ntrip Broadcaster you need to access. If this is not possible, you might need to run BNC outside your LAN on a host that has unobstructed connection to the Internet.</p>
    1633 </div>
    1634 <div class="section" id="ssl-transport-layer-security">
    1635 <span id="index-4"></span><h4>SSL - Transport Layer Security<a class="headerlink" href="#ssl-transport-layer-security" title="Permalink to this headline">¶</a></h4>
    1636 <p>Communication with an Ntrip Broadcaster over Secure Sockets Layer (SSL) as well as the download of RINEX skeleton files when available from HTTPS websites requires the exchange of client and/or server certificates. Specify the path to a directory where you save certificates on your system. You may like to check out <a class="reference external" href="http://software.rtcm-ntrip.org/wiki/Certificates">http://software.rtcm-ntrip.org/wiki/Certificates</a> for a list of known Ntrip Server certificates. You may also just try communication via SSL to check out whether this is supported by the involved Ntrip Broadcaster.</p>
    1637 <p>SSL communication may involve queries coming from the Ntrip Broadcaster or from a HTTPS website hosting RINEX skeletons. Such a query could show up under BNC&#8217;s &#8216;Log&#8217; tab especially when self-signed SSL certificates are used. Example:</p>
    1638 <div class="highlight-default"><div class="highlight"><pre><span class="n">SSL</span> <span class="n">Error</span>
    1639 <span class="n">Server</span> <span class="n">Certificate</span> <span class="n">Issued</span> <span class="n">by</span><span class="p">:</span>
    1640 <span class="n">GNSS</span> <span class="n">Data</span> <span class="n">Center</span>
    1641 <span class="n">BKG</span> <span class="p">(</span><span class="n">Bundesamt</span> <span class="n">für</span> <span class="n">Geodäsie</span> <span class="n">und</span> <span class="n">Kartographie</span><span class="p">)</span>
    1642 <span class="n">Cannot</span> <span class="n">be</span> <span class="n">verified</span>
    1643 
    1644 <span class="n">The</span> <span class="n">issuer</span> <span class="n">certificate</span> <span class="n">of</span> <span class="n">a</span> <span class="n">locally</span> <span class="n">looked</span> <span class="n">up</span> <span class="n">certificate</span> <span class="n">could</span> <span class="ow">not</span> <span class="n">be</span> <span class="n">found</span>
    1645 <span class="n">The</span> <span class="n">root</span> <span class="n">CA</span> <span class="n">certificate</span> <span class="ow">is</span> <span class="ow">not</span> <span class="n">trusted</span> <span class="k">for</span> <span class="n">this</span> <span class="n">purpose</span>
    1646 <span class="n">No</span> <span class="n">certificates</span> <span class="n">could</span> <span class="n">be</span> <span class="n">verified</span>
    1647 
    1648 <span class="n">Queries</span> <span class="n">should</span> <span class="ow">not</span> <span class="n">be</span> <span class="n">received</span> <span class="n">by</span> <span class="n">a</span> <span class="n">client</span> <span class="n">when</span> <span class="n">a</span> <span class="n">server</span> <span class="n">uses</span> <span class="n">official</span> <span class="n">SSL</span> <span class="n">certificates</span><span class="o">.</span>
    1649 </pre></div>
    1650 </div>
    1651 <p>Tick &#8216;Ignore SSL authorization errors&#8217; if you generally trust the server and do not want to be bothered with this. Note that SSL communication is usually done over port 443 <a class="reference internal" href="#fig-7"><span class="std std-numref">(Fig. 7)</span></a>.</p>
    1652 <div class="figure" id="id22">
    1653 <span id="fig-7"></span><a class="reference internal image-reference" href="_images/fig_7.png"><img alt="_images/fig_7.png" src="_images/fig_7.png" style="width: 768.0px; height: 287.0px;" /></a>
    1654 <p class="caption"><span class="caption-number">Fig. 7 </span><span class="caption-text">BNC&#8217;s &#8216;Network&#8217; panel configured to ignore eventually occurring SSL error messages.</span></p>
    1655 </div>
    1656 </div>
    1657 </div>
    1658 <div class="section" id="general">
    1659 <span id="index-5"></span><h3>General<a class="headerlink" href="#general" title="Permalink to this headline">¶</a></h3>
    1660 <p>The following defines general settings for BNC&#8217;s logfile, file handling, reconfiguration on-the-fly, and auto-start <a class="reference internal" href="#fig-7b"><span class="std std-numref">(Fig. 8)</span></a>.</p>
    1661 <div class="figure" id="id23">
    1662 <span id="fig-7b"></span><a class="reference internal image-reference" href="_images/fig_7b.png"><img alt="_images/fig_7b.png" src="_images/fig_7b.png" style="width: 1018.0px; height: 745.0px;" /></a>
    1663 <p class="caption"><span class="caption-number">Fig. 8 </span><span class="caption-text">General BNC options</span></p>
    1664 </div>
    1665 <div class="section" id="logfile-optional">
    1666 <span id="index-6"></span><h4>Logfile - optional<a class="headerlink" href="#logfile-optional" title="Permalink to this headline">¶</a></h4>
    1667 <p>Records of BNC&#8217;s activities are shown in the &#8216;Log&#8217; tab on the bottom of the main window. These logs can be saved into a file when a valid path is specified in the &#8216;Logfile (full path)&#8217; field. The logfile name will automatically be extended by a string &#8216;_YYMMDD&#8217; for the current date. This leads to series of daily logfiles when running BNC continuously. Message logs cover the communication status between BNC and the Ntrip Broadcaster as well as problems that may occur in the communication link, stream availability, stream delay, stream conversion etc. All times are given in UTC. The default value for &#8216;Logfile (full path)&#8217; is an empty option field, meaning that BNC logs will not be saved into a file.</p>
    1668 <p>The following is an example for the content of a logfile written by BNC when operated in Single Point Positioning (SPP) mode:</p>
    1669 <div class="highlight-console"><div class="highlight"><pre><span class="go">15-06-30 11:40:17 ========== Start BNC v2.12 (MAC) ==========</span>
    1670 <span class="go">15-06-30 11:40:17 Panel &#39;PPP&#39; active</span>
    1671 <span class="go">15-06-30 11:40:17 CUT07: Get data in RTCM 3.x format</span>
    1672 <span class="go">15-06-30 11:40:17 RTCM3EPH: Get data in RTCM 3.x format</span>
    1673 <span class="go">15-06-30 11:40:17 Configuration read: PPP.conf, 2 stream(s)</span>
    1674 
    1675 <span class="go">15-06-30 11:40:21 2015-06-30_11:40:19.000 CUT07 X = -2364337.6814 Y = 4870283.8110 Z = -3360808.3085 NEU:  -0.0000  -0.0000  -0.0000 TRP:  +2.4026  -0.0001</span>
    1676 <span class="go">15-06-30 11:40:22 2015-06-30_11:40:20.000 CUT07 X = -2364337.6853 Y = 4870283.8130 Z = -3360808.3082 NEU:  +1.1639  +0.6988  -2.1178 TRP:  +2.4018  +0.0003</span>
    1677 <span class="go">15-06-30 11:40:23 2015-06-30_11:40:21.000 CUT07 X = -2364337.6862 Y = 4870283.8155 Z = -3360808.3107 NEU:  +0.1317  -0.4655  -4.4614 TRP:  +2.4009  +0.0009</span>
    1678 <span class="go">15-06-30 11:40:24 2015-06-30_11:40:22.000 CUT07 X = -2364337.6864 Y = 4870283.8106 Z = -3360808.3099 NEU:  +0.1543  +0.2121  -1.0190 TRP:  +2.4022  +0.0009</span>
    1679 <span class="go">15-06-30 11:40:25 2015-06-30_11:40:23.000 CUT07 X = -2364337.6861 Y = 4870283.8111 Z = -3360808.3105 NEU:  -0.9782  +0.0916  -2.3544 TRP:  +2.4017  +0.0013</span>
    1680 <span class="go">15-06-30 11:40:26 2015-06-30_11:40:24.000 CUT07 X = -2364337.6884 Y = 4870283.8123 Z = -3360808.3103 NEU:  -0.5606  -0.0938  -1.9498 TRP:  +2.4018  +0.0016</span>
    1681 <span class="go">15-06-30 11:40:27 2015-06-30_11:40:25.000 CUT07 X = -2364337.6913 Y = 4870283.8133 Z = -3360808.3122 NEU:  -0.1799  -0.1525  -4.8142 TRP:  +2.4007  +0.0025</span>
    1682 <span class="go">15-06-30 11:40:28 2015-06-30_11:40:26.000 CUT07 X = -2364337.6919 Y = 4870283.8171 Z = -3360808.3184 NEU:  +0.7497  +0.7994  -2.0363 TRP:  +2.4018  +0.0032</span>
    1683 <span class="go">15-06-30 11:40:29 2015-06-30_11:40:27.000 CUT07 X = -2364337.6923 Y = 4870283.8196 Z = -3360808.3230 NEU:  +0.8099  +0.5592  -2.8552 TRP:  +2.4015  +0.0039</span>
    1684 <span class="go">15-06-30 11:40:30 2015-06-30_11:40:28.000 CUT07 X = -2364337.6960 Y = 4870283.8219 Z = -3360808.3222 NEU:  -0.2952  +1.9737  -4.5565 TRP:  +2.4008  +0.0047</span>
    1685 <span class="go">15-06-30 11:40:31 2015-06-30_11:40:29.000 CUT07 X = -2364337.6982 Y = 4870283.8209 Z = -3360808.3209 NEU:  +0.3563  +2.1067  -5.5327 TRP:  +2.4005  +0.0057</span>
    1686 <span class="go">...</span>
    1687 </pre></div>
    1688 </div>
    1689 </div>
    1690 <div class="section" id="append-files-optional">
    1691 <h4>Append Files - optional<a class="headerlink" href="#append-files-optional" title="Permalink to this headline">¶</a></h4>
    1692 <p>When BNC is started, new files are created by default and existing files with the same name will be overwritten. However, users might want to append existing files following a restart of BNC, a system crash or a BNC crash. Tick &#8216;Append files&#8217; to continue with existing files and keep what has been recorded so far. Note that option &#8216;Append files&#8217; affects all types of files created by BNC.</p>
    1693 </div>
    1694 <div class="section" id="reread-configuration-optional">
    1695 <h4>Reread Configuration - optional<a class="headerlink" href="#reread-configuration-optional" title="Permalink to this headline">¶</a></h4>
    1696 <p>When operating BNC online in &#8216;no window&#8217; mode (command line option <code class="docutils literal"><span class="pre">-nw</span></code>), some configuration options can nevertheless be changed on-the-fly without interrupting the running process. For that, you force the program to reread parts of its configuration in pre-defined intervals from disk. Select &#8216;1 min&#8217;, &#8216;1 hour&#8217;, or &#8216;1 day&#8217; to let BNC reread on-the-fly changeable configuration options every full minute, hour, or day. This lets in-between edited options become effective without interrupting uninvolved threads.</p>
    1697 <p>Note that following configuration options saved on disk can be changed/edited on-the-fly while BNC is already processing data:</p>
    1698 <ul class="simple">
    1699 <li>&#8216;mountPoints&#8217; to change the selection of streams to be processed, see section &#8216;Streams Canvas&#8217;;</li>
    1700 <li>&#8216;outWait&#8217; to change the &#8216;Wait for full obs epoch&#8217; option, see section &#8216;Feed Engine&#8217;;</li>
    1701 <li>&#8216;outSampl&#8217; to change the &#8216;Sampling&#8217; option, see section &#8216;Feed Engine&#8217;;</li>
    1702 <li>&#8216;outFile&#8217; to change the &#8216;File&#8217; name where synchronized observations are saved in plain ASCII format, see section &#8216;Feed Engine&#8217;.</li>
    1703 </ul>
    1704 </div>
    1705 <div class="section" id="auto-start-optional">
    1706 <span id="index-7"></span><h4>Auto Start - optional<a class="headerlink" href="#auto-start-optional" title="Permalink to this headline">¶</a></h4>
    1707 <p>You may like to auto-start BNC at startup time in window mode with pre-assigned configuration options. This may be required e.g. immediately after booting your system. Tick &#8216;Auto start&#8217; to supersede the usage of the &#8216;Start&#8217; button. Make sure that you maintain a link to BNC for that in your Autostart directory (Windows systems) or call BNC in a script below directory <code class="docutils literal"><span class="pre">/etc/init.d</span></code> (Unix/Linux/Mac OS X systems).</p>
    1708 <p>See BNC&#8217;s command line option <code class="docutils literal"><span class="pre">-nw</span></code> for an auto-start of BNC in &#8216;no window&#8217; mode.</p>
    1709 </div>
    1710 <div class="section" id="raw-output-file-optional">
    1711 <span id="index-8"></span><h4>Raw Output File - optional<a class="headerlink" href="#raw-output-file-optional" title="Permalink to this headline">¶</a></h4>
    1712 <p>BNC can save all data coming in through various streams in one daily file. The information is recorded in the specified &#8216;Raw output file&#8217; in the received order and format. This feature allows a BNC user to run the PPP option offline with observations, Broadcast Corrections, and Broadcast Ephemeris being read from a previously saved file. It supports the offline repetition of a real-time situation for debugging purposes (Record &amp; Replay functionality) and is not meant for post processing.</p>
    1713 <p>Data will be saved in blocks in the received format separated by ASCII time stamps like (example):</p>
    1714 <div class="highlight-console"><div class="highlight"><pre><span class="go">2010-08-03T18:05:28 RTCM3EPH RTCM_3 67</span>
    1715 </pre></div>
    1716 </div>
    1717 <p>This example block header tells you that 67 bytes were saved in the data block following this time stamp. The information in this block is encoded in RTCM Version 3 format, comes from mountpoint RTCM3EPH and was received at 18:05:28 UTC on 2010-08-03. BNC adds its own time stamps in order to allow the reconstruction of a recorded real-time situation.</p>
    1718 <p>The default value for &#8216;Raw output file&#8217; is an empty option field, meaning that BNC will not save all raw data into one single daily file.</p>
    1719 </div>
    1720 </div>
    1721 <div class="section" id="rinex-observations">
    1722 <span id="index-9"></span><h3>RINEX Observations<a class="headerlink" href="#rinex-observations" title="Permalink to this headline">¶</a></h3>
    1723 <p>Observations will be converted to RINEX if they come in either RTCM Version 2 or RTCM Version 3 format. Depending on the RINEX version and incoming RTCM message types, files generated by BNC may contain data from GPS, GLONASS, Galileo, SBAS, QZSS, and/or BDS (BeiDou). In case an observation type is listed in the RINEX header but the corresponding observation is unavailable, its value is set to zero &#8216;0.000&#8217; or left blank. Note that the &#8216;RINEX TYPE&#8217; field in the RINEX Version 3 Observation file header is always set to &#8216;M(MIXED)&#8217; or &#8216;Mixed&#8217; even if the file only contains data from one system.</p>
    1724 <p>It is important to understand that converting RTCM streams to RINEX files requires a priori information on observation types for specifying a complete RINEX header. Regarding the RINEX Version 2 file header, BNC simply introduces all observation types defined in the Version 2 standard and later reports &#8216;0.000&#8217; for observations which are not received. However, following this approach is not possible for RINEX Version 3 files from RTCM Version 3 MSM streams because of the huge number of observation types, which might in principle show up. The solution implemented in BNC is to start with RINEX Version 3 observation type records from skeleton files (see section &#8216;Skeleton Extension&#8217; and &#8216;Skeleton Mandatory&#8217;) and switch to a default selection of observation types when such file is not available or does not contain the required information. The following is the default selection of observation types specified for a RINEX Version 3 file:</p>
    1725 <div class="highlight-console"><div class="highlight"><pre><span class="go">C    9 C2I L2I S2I C6I L6I S6I C7I L7I S7I                  SYS / # / OBS TYPES</span>
    1726 <span class="go">E   12 C1X L1X SX1 C5X L5X SX5 C7X L7X SX7 C8X L8X SX8      SYS / # / OBS TYPES</span>
    1727 <span class="go">G   15 C1C L1C S1C C1W L1W S1W C2X L2X S2X C2W L2W S2W C5X  SYS / # / OBS TYPES</span>
    1728 <span class="go">       L5X S5X                                              SYS / # / OBS TYPES</span>
    1729 <span class="go">J   24 C1C L1C S1C C1S L1S S1S C1L L1L S1L C1X L1X S1X C2S  SYS / # / OBS TYPES</span>
    1730 <span class="go">       L2S S2S C2L L2L S2L C2X L2X S2X C5X L5X S5X          SYS / # / OBS TYPES</span>
    1731 <span class="go">R   12 C1C L1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P      SYS / # / OBS TYPES</span>
    1732 <span class="go">S    9 C1C L1C S1C C5I L5I S5I C5Q L5Q S5Q                  SYS / # / OBS TYPES</span>
    1733 </pre></div>
    1734 </div>
    1735 <p>Please note that RTCM Version 3 messages 1084 for GLONASS observations do not contain the GLONASS channel numbers. These observation messages can only be converted to RINEX when you add messages which include the channel numbers. This could be done by means of an additional stream carrying 1087 GLONASS observation messages or an additional stream carrying 1020 GLONASS ephemeris messages. You could also consider setting up a stream which contains both, the 1084 and the 1020 messages.</p>
    1736 <p>The screenshot below shows an example setup of BNC when converting streams to RINEX. Streams are coming from various Ntrip Broadcasters as well as from a serial communication link. Specifying a decoder string &#8216;ZERO&#8217; would mean to not convert the affected stream but save its content as received. The &#8216;SSL Error&#8217; recorded in the &#8216;Log&#8217; tab is caused by the fact that observation stream downloads from IGS and MGEX Broadcasters initiate the download of RINEX skeleton files from a HTTPS (TLS/SSL) website and BNC has been configured in this example to ignore SSL errors as shown in the preceding &#8216;Network&#8217; panel screenshot <a class="reference internal" href="#fig-8"><span class="std std-numref">(Fig. 9)</span></a>.</p>
    1737 <div class="figure" id="id24">
    1738 <span id="fig-8"></span><a class="reference internal image-reference" href="_images/fig_8.png"><img alt="_images/fig_8.png" src="_images/fig_8.png" style="width: 900.0px; height: 729.0px;" /></a>
    1739 <p class="caption"><span class="caption-number">Fig. 9 </span><span class="caption-text">BNC translating incoming observation streams to 15 min RINEX Version 3 Observation files.</span></p>
    1740 </div>
    1741 <div class="section" id="rinex-filenames">
    1742 <span id="index-10"></span><h4>RINEX Filenames<a class="headerlink" href="#rinex-filenames" title="Permalink to this headline">¶</a></h4>
    1743 <p>The default for RINEX filenames in BNC follows the convention of RINEX Version 2. However, the software provides options to alternatively follow the filename convention of RINEX Version 3. RINEX Version 2 filenames are derived by BNC from the first 4 characters of the corresponding stream&#8217;s mountpoint (4-character Station ID). For example, data from mountpoints FRANKFURT and WETTZELL will have hourly RINEX Observation files named:</p>
    1744 <div class="highlight-default"><div class="highlight"><pre><span class="n">FRAN</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1745 <span class="n">WETT</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1746 </pre></div>
    1747 </div>
    1748 <p>where &#8216;ddd&#8217; is the day of year, &#8216;h&#8217; is a letter which corresponds to an hour long UTC time block and &#8216;yy&#8217; is the year.</p>
    1749 <p>If there is more than one stream with identical 4-character Station ID (same first 4 characters for their mountpoints), the mountpoint strings are split into two sub-strings and both become part of the RINEX filename. For example, when simultaneously retrieving data from mountpoints FRANKFURT and FRANCE, their hourly RINEX Version 2 Observation files are named as:</p>
    1750 <div class="highlight-default"><div class="highlight"><pre><span class="n">FRAN</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="n">_KFURT</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1751 <span class="n">FRAN</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="n">_CE</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1752 </pre></div>
    1753 </div>
    1754 <p>If several streams show up with exactly the same mountpoint name (example: BRUS0 from www.euref-ip.net and BRUS0 from www.igs-ip.net), BNC adds an integer number to the filename, leading e.g. to hourly RINEX Version 2 Observation files like:</p>
    1755 <div class="highlight-default"><div class="highlight"><pre><span class="n">BRUS</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="n">_0</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1756 <span class="n">BRUS</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}</span><span class="n">_1</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1757 </pre></div>
    1758 </div>
    1759 <p>Note that RINEX Version 2 filenames for all intervals less than 1 hour follow the filename convention for 15 minutes RINEX Version 2 Observation files e.g.:</p>
    1760 <div class="highlight-default"><div class="highlight"><pre><span class="n">FRAN</span><span class="p">{</span><span class="n">ddd</span><span class="p">}{</span><span class="n">h</span><span class="p">}{</span><span class="n">mm</span><span class="p">}</span><span class="o">.</span><span class="p">{</span><span class="n">yy</span><span class="p">}</span><span class="n">O</span>
    1761 </pre></div>
    1762 </div>
    1763 <p>where &#8216;mm&#8217; is the starting minute within the hour.</p>
    1764 <p>In case of RINEX Version 3 filenames, the conventions are summarized in <a class="reference internal" href="#tab-rinex-fn-conv"><span class="std std-numref">Table 2</span></a>.</p>
    1765 <table border="1" class="docutils" id="id25">
    1766 <span id="tab-rinex-fn-conv"></span><caption><span class="caption-number">Table 2 </span><span class="caption-text">Conventions of RINEX 3 file names.</span><a class="headerlink" href="#id25" title="Permalink to this table">¶</a></caption>
    1767 <colgroup>
    1768 <col width="32%" />
    1769 <col width="23%" />
    1770 <col width="45%" />
    1771 </colgroup>
    1772 <thead valign="bottom">
    1773 <tr class="row-odd"><th class="head"><strong>Filename Parameter</strong></th>
    1774 <th class="head"><strong># Characters</strong></th>
    1775 <th class="head"><strong>Meaning</strong></th>
    1776 </tr>
    1777 </thead>
    1778 <tbody valign="top">
    1779 <tr class="row-even"><td>Name</td>
    1780 <td>9</td>
    1781 <td>Site, station and country code</td>
    1782 </tr>
    1783 <tr class="row-odd"><td>S</td>
    1784 <td>1</td>
    1785 <td>Data source</td>
    1786 </tr>
    1787 <tr class="row-even"><td>Start Time</td>
    1788 <td>11</td>
    1789 <td>YYYYDDDHHMM</td>
    1790 </tr>
    1791 <tr class="row-odd"><td>Period</td>
    1792 <td>3</td>
    1793 <td>File period</td>
    1794 </tr>
    1795 <tr class="row-even"><td>Obs. Freq.</td>
    1796 <td>3</td>
    1797 <td>Observation frequency</td>
    1798 </tr>
    1799 <tr class="row-odd"><td>Content</td>
    1800 <td>2</td>
    1801 <td>Content type</td>
    1802 </tr>
    1803 <tr class="row-even"><td>Format</td>
    1804 <td>3</td>
    1805 <td>File format</td>
    1806 </tr>
    1807 <tr class="row-odd"><td>Compression</td>
    1808 <td>2-3</td>
    1809 <td>Compression method (optional)</td>
    1810 </tr>
    1811 </tbody>
    1812 </table>
    1813 <p>Example for Mixed RINEX Version 3 GNSS observation filename, file containing 1 hour of data, one observation every second, &#8216;MO&#8217; standing for &#8216;Mixed Observations&#8217;:</p>
    1814 <div class="highlight-default"><div class="highlight"><pre><span class="n">ALGO00CAN_R_20121601000_01H_01S_MO</span><span class="o">.</span><span class="n">rnx</span>
    1815 </pre></div>
    1816 </div>
    1817 <p>Note that filename details are produced from the stream&#8217;s mountpoint as well as corresponding BNC settings and meta data from the Ntrip Broadcaster source-table.</p>
    1818 </div>
    1819 <div class="section" id="directory-optional">
    1820 <span id="index-11"></span><h4>Directory - optional<a class="headerlink" href="#directory-optional" title="Permalink to this headline">¶</a></h4>
    1821 <p>Here you can specify the path to where the RINEX Observation files will be stored. If the specified directory does not exist, BNC will not create RINEX Observation files. Default value for &#8216;Directory&#8217; is an empty option field, meaning that no RINEX Observation files will be written.</p>
    1822 </div>
    1823 <div class="section" id="file-interval-mandatory-if-directory-is-set">
    1824 <span id="index-12"></span><h4>File Interval - mandatory if &#8216;Directory&#8217; is set<a class="headerlink" href="#file-interval-mandatory-if-directory-is-set" title="Permalink to this headline">¶</a></h4>
    1825 <p>Select the length of the RINEX Observation file to be generated. The default value is 15 minutes.</p>
    1826 </div>
    1827 <div class="section" id="sampling-mandatory-if-directory-is-set">
    1828 <span id="index-13"></span><h4>Sampling - mandatory if &#8216;Directory&#8217; is set<a class="headerlink" href="#sampling-mandatory-if-directory-is-set" title="Permalink to this headline">¶</a></h4>
    1829 <p>Select the RINEX Observation sampling interval in seconds. A value of zero &#8216;0&#8217; tells BNC to store all received epochs into RINEX. This is the default value.</p>
    1830 </div>
    1831 <div class="section" id="skeleton-extension-optional">
    1832 <span id="index-14"></span><h4>Skeleton Extension - optional<a class="headerlink" href="#skeleton-extension-optional" title="Permalink to this headline">¶</a></h4>
    1833 <p>Whenever BNC starts to generate RINEX Observation files (and then once every day at midnight), it first tries to retrieve information needed for RINEX headers from so-called fully machine-readable public RINEX header skeleton files which are derived from sitelogs. An HTTP or HTTPS link to a directory containing these skeleton files may be available through data field number 7 of the affected NET record in the source-table. See <a class="reference external" href="http://www.epncb.oma.be:80/stations/log/skl/brus.skl">http://www.epncb.oma.be:80/stations/log/skl/brus.skl</a> for an example of a public RINEX header skeleton file for EPN station Brussels. Note that the download of RINEX skeleton files from HTTPS websites requires the exchange of client and/or server certificates. Clarify &#8216;SSL&#8217; options offered through panel &#8216;Network&#8217; for details.</p>
    1834 <p>Sometimes public RINEX header skeleton files are not available, their content is not up to date, or you need to put additional/optional records in the RINEX header. For that, BNC allows using personal skeleton files that contain the header records you would like to include. You can derive a personal RINEX header skeleton file from the information given in an up to date sitelog. A file in the RINEX Observations &#8216;Directory&#8217; with a &#8216;Skeleton extension&#8217; suffix is interpreted by BNC as a personal RINEX header skeleton file for the corresponding stream.</p>
    1835 <p>When producing RINEX Observation files from mountpoints (examples) &#8216;BRUS0&#8217;, &#8216;FRANKFURT&#8217;, and &#8216;WETTZELL&#8217;, the following skeleton filenames would be accepted:</p>
    1836 <div class="highlight-console"><div class="highlight"><pre><span class="go">brus.skl</span>
    1837 <span class="go">fran.skl</span>
    1838 <span class="go">wett.skl</span>
    1839 </pre></div>
    1840 </div>
    1841 <p>if &#8216;Skeleton extension&#8217; is set to &#8216;skl&#8217;.</p>
    1842 <p>Note the following regulations regarding personal RINEX header skeleton files:</p>
    1843 <ul class="simple">
    1844 <li>If such a file exists in the &#8216;RINEX directory&#8217;, the corresponding public RINEX header skeleton file is ignored. The RINEX header is generated solely from the content of the personal skeleton.</li>
    1845 <li>Personal skeletons should contain a complete first header record of type:</li>
    1846 </ul>
    1847 <div class="highlight-console"><div class="highlight"><pre><span class="go">RINEX VERSION / TYPE</span>
    1848 </pre></div>
    1849 </div>
    1850 <p>They should then contain an empty header record of type:</p>
    1851 <div class="highlight-console"><div class="highlight"><pre><span class="go">PGM / RUN BY / DATE</span>
    1852 </pre></div>
    1853 </div>
    1854 <p>BNC will complete this line and include it in the RINEX file header.</p>
    1855 <ul class="simple">
    1856 <li>They should further contain complete header records of type:</li>
    1857 </ul>
    1858 <div class="highlight-console"><div class="highlight"><pre><span class="go">MARKER NAME</span>
    1859 <span class="go">OBSERVER / AGENCY</span>
    1860 <span class="go">REC # / TYPE / VERS</span>
    1861 <span class="go">ANT # / TYPE</span>
    1862 <span class="go">APPROX POSITION XYZ</span>
    1863 <span class="go">ANTENNA: DELTA H/E/N</span>
    1864 <span class="go">WAVELENGTH FACT L1/2 (RINEX Version 2)</span>
    1865 <span class="go">SYS / # / OBS TYPES (for RINEX Version 3 files, will be ignored in Version 2 files)</span>
    1866 </pre></div>
    1867 </div>
    1868 <ul>
    1869 <li><p class="first">They may contain any other optional complete header record as defined in the RINEX documentation.</p>
    1870 </li>
    1871 <li><p class="first">They should also contain an empty header record of type:</p>
    1872 <div class="highlight-none"><div class="highlight"><pre>#/ TYPES OF OBSERV (only RINEX Version 2, will be ignored when in Version 3 files)
    1873 </pre></div>
    1874 </div>
    1875 </li>
    1876 <li><p class="first">BNC will include these lines in the final RINEX file header together with an additional</p>
    1877 <div class="highlight-console"><div class="highlight"><pre><span class="go">COMMENT</span>
    1878 </pre></div>
    1879 </div>
    1880 <p>line describing the source of the stream.</p>
    1881 </li>
    1882 <li><p class="first">They should finally contain an empty last header record of type:</p>
    1883 <div class="highlight-console"><div class="highlight"><pre><span class="go">END OF HEADER</span>
    1884 </pre></div>
    1885 </div>
    1886 </li>
    1887 <li><p class="first">They must not contain a header record of type:</p>
    1888 <div class="highlight-console"><div class="highlight"><pre><span class="go">TIME OF FIRST OBS</span>
    1889 </pre></div>
    1890 </div>
    1891 </li>
    1892 </ul>
    1893 <p>If neither a public nor a personal RINEX header skeleton file is available for BNC, a default header will be used. The following is a skeleton example for a RINEX file:</p>
    1894 <div class="highlight-console"><div class="highlight"><pre><span class="go">                    OBSERVATION DATA    M (MIXED)           RINEX VERSION / TYPE</span>
    1895 <span class="go">                                                            PGM / RUN BY / DATE</span>
    1896 <span class="go">CUT0                                                        MARKER NAME</span>
    1897 <span class="go">59945M001                                                   MARKER NUMBER</span>
    1898 <span class="go">5023K67889          TRIMBLE NETR9       5.01                REC # / TYPE / VERS</span>
    1899 <span class="go">4928353386          TRM59800.00     SCIS                    ANT # / TYPE</span>
    1900 <span class="go"> -2364337.2699  4870285.5624 -3360809.8398                  APPROX POSITION XYZ</span>
    1901 <span class="go">        0.0000        0.0000        0.0000                  ANTENNA: DELTA H/E/N</span>
    1902 <span class="go">gnss@curtin.edu.au  CUT                                     OBSERVER / AGENCY</span>
    1903 <span class="go">C   10 C1I L1I D1I S1I C6I L6I S6I C7I L7I S7I              SYS / # / OBS TYPES</span>
    1904 <span class="go">E   13 C1X L1X D1X S1X C5X L5X S5X C7X L7X S7X C8X L8X S8X  SYS / # / OBS TYPES</span>
    1905 <span class="go">G   13 C1C L1C D1C S1C C2W L2W S2W C2X L2X S2X C5X L5X S5X  SYS / # / OBS TYPES</span>
    1906 <span class="go">J   19 C1C L1C D1C S1C C1X L1X S1X C1Z L1Z S1Z C2X L2X S2X  SYS / # / OBS TYPES</span>
    1907 <span class="go">       C5X L5X S5X C6L L6L S6L                              SYS / # / OBS TYPES</span>
    1908 <span class="go">R   13 C1C L1C D1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P  SYS / # / OBS TYPES</span>
    1909 <span class="go">S    7 C1C L1C D1C S1C C5I L5I S5I                          SYS / # / OBS TYPES</span>
    1910 <span class="go">PORTIONS OF THIS HEADER GENERATED BY THE IGS CB FROM        COMMENT</span>
    1911 <span class="go">SITELOG cut0_20150507.log                                   COMMENT</span>
    1912 <span class="go">                                                            END OF HEADER</span>
    1913 </pre></div>
    1914 </div>
    1915 </div>
    1916 <div class="section" id="skeleton-mandatory-optional">
    1917 <span id="index-15"></span><h4>Skeleton Mandatory - optional<a class="headerlink" href="#skeleton-mandatory-optional" title="Permalink to this headline">¶</a></h4>
    1918 <p>Tick check box &#8216;Skeleton mandatory&#8217; in case you want that RINEX files are only produced when skeleton files are available for BNC. If no skeleton file is available for a particular source, then no RINEX observation file will be produced from the affected stream.</p>
    1919 <p>Note that a skeleton file contains RINEX header information such as receiver and antenna types. In case of stream conversion to RINEX Version 3, a skeleton file should also contain information on potentially available observation types. A missing skeleton file will force BNC to only save a default set of RINEX 3 observation types.</p>
    1920 </div>
    1921 <div class="section" id="script-optional">
    1922 <h4>Script - optional<a class="headerlink" href="#script-optional" title="Permalink to this headline">¶</a></h4>
    1923 <p>Whenever a RINEX Observation file is saved, you might want to compress, copy or upload it immediately via FTP. BNC allows you to execute a script/batch file to carry out these operations. To do that, specify the full path to such script/batch file. BNC will pass the RINEX Observation file path to the script as a command line parameter (%1 on Windows systems, $1 on Unix/Linux/Mac OS X systems).</p>
    1924 <p>The triggering event for calling the script or batch file is the end of a RINEX Observation file &#8216;Interval&#8217;. If that is overridden by a stream outage, the triggering event is the stream reconnection.</p>
    1925 <p>As an alternative to initiating file uploads through BNC, you may like to call an upload script or batch file through your crontable or Task Scheduler (independent from BNC) once every one or two minutes after the end of each RINEX file &#8216;Interval&#8217;.</p>
    1926 </div>
    1927 <div class="section" id="version-2-optional">
    1928 <h4>Version 2 - optional<a class="headerlink" href="#version-2-optional" title="Permalink to this headline">¶</a></h4>
    1929 <p>GNSS observation data are generally hold available within BNC according to attributes as defined in RINEX Version 3. These attributes describe the tracking mode or channel when generating the observation signals. Capital letters specifying signal generation attributes are A, B, C, D, I, L, M, N, P, Q, S, W, X, Y, and Z, see RINEX Version 3 documentation. Although RINEX Version 3 with its signal generation attributes is the internal default processing format for BNC, there are two applications where the program is explicitly required to produce data files in RINEX Version 2 format:</p>
    1930 <ol class="arabic simple">
    1931 <li>When saving the content of incoming observation streams in RINEX Version 2 files as described in this section.</li>
    1932 <li>When editing or concatenating RINEX 3 files to save them in Version 2 format, see section on &#8216;RINEX Editing &amp; QC&#8217;.</li>
    1933 </ol>
    1934 <p>As the Version 2 format ignores signal generation attributes, BNC is forced to somehow map RINEX Version 3 to RINEX Version 2 although this cannot be done in one-to-one correspondence. Hence we introduce a &#8216;Signal priority&#8217; list of attributes (characters, forming a string) for mapping Version 3 to Version 2.</p>
    1935 <p>Signal priorities can be specified as equal for all systems, as system specific or as system and frequency specific. For example:</p>
    1936 <ul class="simple">
    1937 <li>&#8216;<a href="#id72"><span class="problematic" id="id73">CWPX_</span></a>?&#8217; (General signal priorities valid for all GNSS)</li>
    1938 <li>&#8216;C:IQX I:ABCX&#8217; (System specific signal priorities for BDS and IRNSS)</li>
    1939 <li>&#8216;G:12&amp;PWCSLXYN G:5&amp;IQX R:12&amp;PC R:3&amp;IQX&#8217; (System and frequency specific signal priorities)</li>
    1940 </ul>
    1941 <p>The default &#8216;Signal priority&#8217; list is defined as follows: &#8216;G:12&amp;PWCSLXYN G:5&amp;IQX R:12&amp;PC R:3&amp;IQX E:16&amp;BCX E:578&amp;IQX J:1&amp;SLXCZ J:26&amp;SLX J:5&amp;IQX C:IQX I:ABCX S:1&amp;C S:5&amp;IQX&#8217;</p>
    1942 <p>As an example the &#8216;Signal priority&#8217; of &#8216;<a href="#id74"><span class="problematic" id="id75">CWPX_</span></a>?&#8217; is explained in more detail:</p>
    1943 <ul class="simple">
    1944 <li>Signals with attribute &#8216;C&#8217; enjoy the highest priority. If such a Version 3 observation becomes available, it is presented as RINEX Version 2 observation if that is the format you wish to see. Observations with other attributes are being ignored.</li>
    1945 <li>If no signal with &#8216;C&#8217; attribute is available but we have an observation with &#8216;W&#8217; attribute, BNC presents that one as RINEX Version 2 observation and ignores all observations with other attributes. The same applies mutatis mutandis to observations with P and X attributes.</li>
    1946 <li>If no signal with &#8216;C&#8217;, &#8216;W&#8217;, &#8216;P&#8217;, or &#8216;X&#8217; attribute is available but a signal with undefined generation attribute (underscore character, &#8216;_&#8217;) exists, BNC presents that one as RINEX Version 2 observation. Note that observation attributes should actually always be available in RINEX Version 3. Hence the underscore character makes only sense in a few very special cases.</li>
    1947 <li>If no signal with &#8216;C&#8217;, &#8216;W&#8217;, &#8216;P&#8217;, &#8216;X&#8217;, or &#8216;_&#8217; generation attribute exists then the question mark &#8216;?&#8217; tells BNC to present the first of any other appearing signal as RINEX Version 2 observation.</li>
    1948 </ul>
    1949 <p>You may like to specify your own &#8216;Signal priority&#8217; string(s) for producing RINEX Version 2 files. If you neither convert observation streams to RINEX Version 2 nor concatenate RINEX Version 3 to Version 2 files, then the &#8216;Version 2&#8217; option is meaningless.</p>
    1950 </div>
    1951 <div class="section" id="version-3-optional">
    1952 <h4>Version 3 - optional<a class="headerlink" href="#version-3-optional" title="Permalink to this headline">¶</a></h4>
    1953 <p>The default format for RINEX Observation files is RINEX Version 2.11. Select RINEX &#8216;Version 3&#8217; if you would like to save RTCM Version 3 observation streams in RINEX Version 3.03 format. Note that it is possible to force an RTCM Version 2 stream to be saved in RINEX Version 3 file format. However, this is not recommended because such stream cannot be precisely mapped to RINEX Version 3 as the required information on tracking modes (observation attributes) is not part of RTCM Version 2.</p>
    1954 </div>
    1955 <div class="section" id="version-3-filenames-optional">
    1956 <h4>Version 3 Filenames - optional<a class="headerlink" href="#version-3-filenames-optional" title="Permalink to this headline">¶</a></h4>
    1957 <p>Tick check box &#8216;Version 3 filenames&#8217; to let BNC create so-called extended filenames following the RINEX Version 3 standard. Default is an empty check box, meaning to still use filenames following the RINEX Version 2 standard although the file content is saved in RINEX Version 3 format.</p>
    1958 </div>
    1959 </div>
    1960 <div class="section" id="rinex-ephemeris">
    1961 <span id="index-16"></span><h3>RINEX Ephemeris<a class="headerlink" href="#rinex-ephemeris" title="Permalink to this headline">¶</a></h3>
    1962 <p>Broadcast Ephemeris can be saved in RINEX Navigation files when received e.g. via RTCM Version 3 message types 1019 (GPS) or 1020 (GLONASS) or 1044 (QZSS) or 1043 (SBAS) or 1045 and 1046 (Galileo) or 63 (BDS/BeiDou, tentative message number). The filename convention follows the details given in section &#8216;RINEX Filenames&#8217; except that the first four characters are &#8216;BRDC&#8217;. For RINEX Version 2 Navigation files the last character is &#8216;N&#8217; or &#8216;G&#8217; for GPS or GLONASS ephemeris in two separate files. Regarding RINEX Version 3 you will find all ephemeris data for GPS, GLONASS, Galileo, SBAS, QZSS, and BDS gathered in one Navigation file.</p>
    1963 <p>The following is an example for a RINEX Version 3 Navigation filename. The file contains one day&#8217;s data. &#8216;MN&#8217; stands for &#8216;Multi Constellation Navigation&#8217; data.</p>
    1964 <div class="highlight-console"><div class="highlight"><pre><span class="go">BRDC00DEU_S_20121600000_01D_MN.rnx</span>
    1965 </pre></div>
    1966 </div>
    1967 <p>Note that streams dedicated to carry Broadcast Ephemeris messages in RTCM Version 3 format in high repetition rates are listed on <a class="reference external" href="http://igs.bkg.bund.de/ntrip/ephemeris">http://igs.bkg.bund.de/ntrip/ephemeris</a>. Note further that BNC will ignore incorrect or outdated Broadcast Ephemeris data when necessary, leaving a note &#8216;WRONG EPHEMERIS&#8217; or &#8216;OUTDATED EPHEMERIS&#8217; in the logfile.</p>
    1968 <div class="section" id="id1">
    1969 <h4>Directory - optional<a class="headerlink" href="#id1" title="Permalink to this headline">¶</a></h4>
    1970 <p>Specify a path for saving Broadcast Ephemeris data in RINEX Navigation files. If the specified directory does not exist, BNC will not create RINEX Navigation files. Default value for Ephemeris &#8216;Directory&#8217; is an empty option field, meaning that no RINEX Navigation files will be created.</p>
    1971 </div>
    1972 <div class="section" id="interval-mandatory-if-directory-is-set">
    1973 <h4>Interval - mandatory if &#8216;Directory&#8217; is set<a class="headerlink" href="#interval-mandatory-if-directory-is-set" title="Permalink to this headline">¶</a></h4>
    1974 <p>Select the length of RINEX Navigation files. The default value is &#8216;1 day&#8217;.</p>
    1975 </div>
    1976 <div class="section" id="port-optional">
    1977 <h4>Port - optional<a class="headerlink" href="#port-optional" title="Permalink to this headline">¶</a></h4>
    1978 <p>BNC can output Broadcast Ephemeris in RINEX Version 3 format on your local host (IP 127.0.0.1) through an IP &#8216;Port&#8217;. Specify an IP port number to activate this function. The default is an empty option field, meaning that no ASCII ephemeris output via IP port is generated.</p>
    1979 <p>The source code for BNC comes with an example Perl script <code class="docutils literal"><span class="pre">test_tcpip_client.pl</span></code> that allows you to read BNC&#8217;s ephemeris ASCII output from the IP port.</p>
    1980 </div>
    1981 <div class="section" id="version-optional">
    1982 <h4>Version - optional<a class="headerlink" href="#version-optional" title="Permalink to this headline">¶</a></h4>
    1983 <p>Default format for RINEX Navigation files containing Broadcast Ephemeris is RINEX Version 2.11. Select &#8216;Version 3&#8217; if you want to save the ephemeris data in RINEX Version 3.03 format. Note that this does not concern the Broadcast Ephemeris output through IP port, which is always in RINEX Version 3.03 format.</p>
    1984 </div>
    1985 <div class="section" id="id2">
    1986 <h4>Version 3 Filenames - optional<a class="headerlink" href="#id2" title="Permalink to this headline">¶</a></h4>
    1987 <p>Tick check box &#8216;Version 3 filenames&#8217; to let BNC create so-called extended filenames following the RINEX Version 3 standard. Default is an empty check box, meaning to still use filenames following the RINEX Version 2 standard although the file content is saved in RINEX Version 3 format <a class="reference internal" href="#fig-9"><span class="std std-numref">(Fig. 10)</span></a>.</p>
    1988 <div class="figure" id="id26">
    1989 <span id="fig-9"></span><a class="reference internal image-reference" href="_images/fig_9.png"><img alt="_images/fig_9.png" src="_images/fig_9.png" style="width: 859.0px; height: 510.0px;" /></a>
    1990 <p class="caption"><span class="caption-number">Fig. 10 </span><span class="caption-text">BNC converting Broadcast Ephemeris stream to RINEX Version 3 Navigation files</span></p>
    1991 </div>
    1992 </div>
    1993 </div>
    1994 <div class="section" id="rinex-editing-qc">
    1995 <span id="index-17"></span><h3>RINEX Editing &amp; QC<a class="headerlink" href="#rinex-editing-qc" title="Permalink to this headline">¶</a></h3>
    1996 <p>Besides stream conversion from RTCM to RINEX, BNC allows editing RINEX files or concatenate their content. RINEX Observation and Navigation files can be handled. BNC can also carry out a RINEX file Quality Check. In summary and besides Stream <strong>T</strong>ranslation, this functionality in BNC covers</p>
    1997 <ul class="simple">
    1998 <li>File <strong>E</strong>diting and concatenation</li>
    1999 <li>File <strong>Q</strong>uality <strong>C</strong>heck<ul>
     1531As the Version 2 format ignores signal generation attributes, BNC is forced to somehow map RINEX Version 3 to RINEX Version 2 although this cannot be done in one-to-one correspondence. Hence we introduce a 'Signal priority' list of attributes (characters, forming a string) for mapping Version 3 to Version 2.
     1532</p>
     1533<p>
     1534Signal priorities can be specified as equal for all systems, as system specific or as system and frequency specific. For example:</li>
     1535<ul>
     1536<li>'CWPX_?' (General signal priorities valid for all GNSS)</li>
     1537<li>'C:IQX I:ABCX' (System specific signal priorities for BDS and IRNSS)</li>
     1538<li>'G:12&PWCSLXYN G:5&IQX R:12&PC R:3&IQX' (System and frequency specific signal priorities)</li>
     1539</ul>
     1540</p>
     1541<p>
     1542The default 'Signal priority' list is defined as follows:
     1543<ul>
     1544 <li>'G:12&PWCSLXYN G:5&IQX R:12&PC R:3&IQX E:16&BCX E:578&IQX J:1&SLXCZ J:26&SLX J:5&IQX C:IQX I:ABCX S:1&C S:5&IQX'</li>
     1545</ul>
     1546
     1547As an example the 'Signal priority' of 'CWPX_?' is explained in more detail:
     1548<ul>
     1549<li>Signals with attribute 'C' enjoy the highest priority. If such a Version 3 observation becomes available, it is presented as RINEX Version 2 observation if that is the format you wish to see. Observations with other attributes are being ignored.</li>
     1550<li>If no signal with 'C' attribute is available but we have an observation with 'W' attribute, BNC presents that one as RINEX Version 2 observation and ignores all observations with other attributes. The same applies mutatis mutandis to observations with P and X attributes.</li>
     1551<li>If no signal with 'C', 'W', 'P', or 'X' attribute is available but a signal with undefined generation attribute (underscore character, '_') exists, BNC presents that one as RINEX Version 2 observation. Note that observation attributes should actually always be available in RINEX Version 3. Hence the underscore character makes only sense in a few very special cases.</li>
     1552<li>If no signal with 'C', 'W', 'P', 'X', or '_' generation attribute exists then the question mark '?' tells BNC to present the first of any other appearing signal as RINEX Version 2 observation.</li>
     1553</ul>
     1554</p>
     1555
     1556<p>
     1557You may like to specify your own 'Signal priority' string(s) for producing RINEX Version 2 files. If you neither convert observation streams to RINEX Version 2 nor concatenate RINEX Version 3 to Version 2 files, then the 'Version 2' option is meaningless.
     1558</p>
     1559
     1560<p><h4>2.4.9 <a name="rnxvers3">Version 3 - optional</h4></p>
     1561<p>
     1562The default format for RINEX Observation files is RINEX Version 2.11. Select RINEX 'Version 3' if you would like to save RTCM Version 3 observation streams in RINEX Version 3.03 format.
     1563</p>
     1564
     1565<p>
     1566Note that it is possible to force an RTCM Version 2 stream to be saved in RINEX Version 3 file format. However, this is not recommended because such stream cannot be precisely mapped to RINEX Version 3 as the required information on tracking modes (observation attributes) is not part of RTCM Version 2.
     1567</p>
     1568
     1569<p><h4>2.4.10 <a name="rnxvers3File">Version 3 Filenames - optional</h4></p>
     1570<p>
     1571Tick check box 'Version 3 filenames' to let BNC create so-called extended filenames following the RINEX Version 3 standard.
     1572</p>
     1573<p>Default is an empty check box, meaning to still use filenames following the RINEX Version 2 standard although the file content is saved in RINEX Version 3 format.
     1574</p>
     1575
     1576<p><h4>2.5 <a name="ephemeris">RINEX Ephemeris</h4></p>
     1577<p>
     1578Broadcast Ephemeris can be saved in RINEX Navigation files when received e.g. via RTCM Version 3 message types 1019 (GPS) or 1020 (GLONASS) or 1044 (QZSS) or 1043 (SBAS) or 1045 and 1046 (Galileo) or 63 (BDS/BeiDou, tentative message number). The filename convention follows the details given in section 'RINEX Filenames' except that the first four characters are 'BRDC'.
     1579</p>
     1580<p>
     1581For RINEX Version 2 Navigation files the last character is 'N' or 'G' for GPS or GLONASS ephemeris in two separate files.
     1582</p>
     1583<p>
     1584Regarding RINEX Version 3 you will find all ephemeris data for GPS, GLONASS, Galileo, SBAS, QZSS, and BDS gathered in one Navigation file.
     1585</p>
     1586<p>
     1587The following is an example for a RINEX Version 3 Navigation filename. The file contains one day's data. 'MN' stands for 'Multi Constellation Navigation' data.
     1588<pre>
     1589   BRDC00DEU_S_20121600000_01D_MN.rnx
     1590</pre>
     1591</p>
     1592
     1593<p>
     1594Note that streams dedicated to carry Broadcast Ephemeris messages in RTCM Version 3 format in high repetition rates are listed on <u>http://igs.bkg.bund.de/ntrip/ephemeris</u>.
     1595</p>
     1596
     1597<p>
     1598Note further that BNC will ignore incorrect or outdated Broadcast Ephemeris data when necessary, leaving a note 'WRONG EPHEMERIS' or 'OUTDATED EPHEMERIS' in the logfile.
     1599</p>
     1600
     1601<p><h4>2.5.1 <a name="ephdir">Directory - optional</h4></p>
     1602<p>
     1603Specify a path for saving Broadcast Ephemeris data in RINEX Navigation files. If the specified directory does not exist, BNC will not create RINEX Navigation files. Default value for Ephemeris 'Directory' is an empty option field, meaning that no RINEX Navigation files will be created.
     1604</p>
     1605
     1606<p><h4>2.5.2 <a name="ephint">Interval - mandatory if 'Directory' is set</h4></p>
     1607<p>
     1608Select the length of RINEX Navigation files. The default value is '1 day'.
     1609</p>
     1610
     1611<p><h4>2.5.3 <a name="ephport">Port - optional</h4></p>
     1612<p>
     1613BNC can output Broadcast Ephemeris in RINEX Version 3 format on your local host (IP 127.0.0.1) through an IP 'Port'. Specify an IP port number to activate this function. The default is an empty option field, meaning that no ASCII ephemeris output via IP port is generated.
     1614</p>
     1615<p>
     1616The source code for BNC comes with an example Perl script 'test_tcpip_client.pl' that allows you to read BNC's ephemeris ASCII output from the IP port.
     1617</p>
     1618
     1619<p><h4>2.5.4 <a name="ephvers">Version - optional</h4></p>
     1620<p>
     1621Default format for RINEX Navigation files containing Broadcast Ephemeris is RINEX Version 2.11. Select 'Version 3' if you want to save the ephemeris data in RINEX Version 3.03 format.
     1622</p>
     1623<p>
     1624Note that this does not concern the Broadcast Ephemeris output through IP port, which is always in RINEX Version 3.03 format.
     1625</p>
     1626
     1627<p><h4>2.5.5 <a name="ephversFile">Version 3 Filenames - optional</h4></p>
     1628<p>
     1629Tick check box 'Version 3 filenames' to let BNC create so-called extended filenames following the RINEX Version 3 standard.
     1630</p>
     1631<p>Default is an empty check box, meaning to still use filenames following the RINEX Version 2 standard although the file content is saved in RINEX Version 3 format.
     1632</p>
     1633
     1634<p><img src="IMG/screenshot42.png"/></p>
     1635<p><u>Figure 9:</u> BNC converting Broadcast Ephemeris stream to RINEX Version 3 Navigation files</p>
     1636
     1637<p><h4>2.6 <a name="reqc">RINEX Editing & QC</h4></p>
     1638<p>
     1639Besides stream conversion from RTCM to RINEX, BNC allows editing RINEX files or concatenate their content. RINEX Observation and Navigation files can be handled. BNC can also carry out a RINEX file Quality Check. In summary  and besides Stream <u><b>T</b></u>ranslation, this functionality in BNC covers
     1640<ul>
     1641<li>File <u><b>E</b></u>diting and concatenation</li>
     1642<li>File <u><b>Q</b></u>uality <u><b>C</b></u>heck</li>
     1643<ul>
    20001644<li>Multipath analysis sky plots</li>
    20011645<li>Signal-to-noise ratio sky plots</li>
    … …  
    20041648<li>PDOP plots</li>
    20051649</ul>
    2006 </li>
    2007 </ul>
    2008 <p>and hence follows UNAVCO&#8217;s famous teqc program (see <a class="reference internal" href="bnchelp.html#estey1999a" id="id3">[7]</a>). The remarkable thing about BNC in this context is that it supports RINEX Version 3 under GNU General Public License with full GUI support and graphics output.</p>
    2009 <div class="section" id="action-optional">
    2010 <h4>Action - optional<a class="headerlink" href="#action-optional" title="Permalink to this headline">¶</a></h4>
    2011 <p>Select an action. Options are &#8216;Edit/Concatenate&#8217; and &#8216;Analyze&#8217;.</p>
    2012 <ul class="simple">
    2013 <li>Select &#8216;Edit/Concatenate&#8217; if you want to edit RINEX file content according to options specified under &#8216;Set Edit Options&#8217; or if you want to concatenate several RINEX files.</li>
    2014 <li>Select &#8216;Analyze&#8217; if you are interested in a quality check of your RINEX file content.</li>
    2015 </ul>
    2016 </div>
    2017 <div class="section" id="input-files-mandatory">
    2018 <h4>Input Files - mandatory<a class="headerlink" href="#input-files-mandatory" title="Permalink to this headline">¶</a></h4>
    2019 <p>Specify full path to input RINEX Observation file(s), and specify full path to input RINEX Navigation file(s). When specifying several input files, BNC will concatenate their contents. In case of RINEX Observation input files with different observation type header records, BNC will output only one set of adjusted observation type records in the RINEX header which fits to the whole file content. Note that you may specify several RINEX Version 2 Navigation files for GPS and GLONASS.</p>
    2020 </div>
    2021 <div class="section" id="output-files-optional-if-action-is-set-to-edit-concatenate">
    2022 <h4>Output Files - optional if &#8216;Action&#8217; is set to &#8216;Edit/Concatenate&#8217;<a class="headerlink" href="#output-files-optional-if-action-is-set-to-edit-concatenate" title="Permalink to this headline">¶</a></h4>
    2023 <p>If &#8216;Edit/Concatenate&#8217; is selected, specifying the full path to output RINEX Observation file(s) and specifying the full path to output RINEX Navigation file(s) is optional. Default are empty option fields, meaning that no RINEX files will be saved on disk.</p>
    2024 </div>
    2025 <div class="section" id="id4">
    2026 <h4>Logfile - optional<a class="headerlink" href="#id4" title="Permalink to this headline">¶</a></h4>
    2027 <p>Specify the name of a logfile to save information on RINEX file Editing/Concatenation or Analysis. Default is an empty option field, meaning that no logfile will be saved. Note that logfiles from analyzing RINEX files may become quite large. Hence, BNC provides an option &#8216;Summary only&#8217; to limit logfile content to some essential information in case &#8216;Action&#8217; is set to &#8216;Analyze&#8217;. The following is an example for a RINEX quality check analysis logfile:</p>
    2028 <div class="highlight-console"><div class="highlight"><pre><span class="go">QC Format Version  : 1.1</span>
    2029 
    2030 <span class="go">Navigation File(s) : BRDC2520.15P</span>
    2031 <span class="go">Ephemeris          : 2985 OK   0 BAD</span>
    2032 
    2033 <span class="go">Observation File   : CUT02520.15O</span>
    2034 <span class="go">RINEX Version      : 3.03</span>
    2035 <span class="go">Marker Name        : CUT0</span>
    2036 <span class="go">Marker Number      : 59945M001</span>
    2037 <span class="go">Receiver           : TRIMBLE NETR9</span>
    2038 <span class="go">Antenna            : TRM59800.00     SCIS</span>
    2039 <span class="go">Position XYZ       :  -2364337.2699   4870285.5624  -3360809.8398</span>
    2040 <span class="go">Antenna dH/dE/dN   :   0.0000   0.0000   0.0000</span>
    2041 <span class="go">Start Time         : 2015-09-09 13.04.50.0</span>
    2042 <span class="go">End Time           : 2015-09-09 23.59.58.0</span>
    2043 <span class="go">Interval           : 1</span>
    2044 <span class="go">Navigation Systems : 6    C E G J R S</span>
    2045 <span class="go">Observation Types C: C2I L2I D2I S2I C6I L6I S6I C7I L7I S7I</span>
    2046 <span class="go">Observation Types E: C1X L1X D1X S1X C5X L5X S5X C7X L7X S7X C8X L8X S8X</span>
    2047 <span class="go">Observation Types G: C1C L1C D1C S1C C2W L2W S2W C2X L2X S2X C5X L5X S5X</span>
    2048 <span class="go">Observation Types J: C1C L1C D1C S1C C1X L1X S1X C1Z L1Z S1Z C2X L2X S2X C5X L5X S5X C6L L6L S6L</span>
    2049 <span class="go">Observation Types R: C1C L1C D1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P</span>
    2050 <span class="go">Observation Types S: C1C L1C D1C S1C C5I L5I S5I</span>
    2051 
    2052 <span class="go">  C: Satellites: 13</span>
    2053 <span class="go">  C: Signals   : 3    2I 6I 7I</span>
    2054 
    2055 <span class="go">      C:   2I: Observations      : 396567 (  511017)    77.60 %</span>
    2056 <span class="go">      C:   2I: Slips (file+found):        0 +       0</span>
    2057 <span class="go">      C:   2I: Gaps              :     8676</span>
    2058 <span class="go">      C:   2I: Mean SNR          :     41.7</span>
    2059 <span class="go">      C:   2I: Mean Multipath    :     0.42</span>
    2060 
    2061 <span class="go">      C:   6I: Observations      : 396233 (  511017)    77.54 %</span>
    2062 <span class="go">      C:   6I: Slips (file+found):        0 +       0</span>
    2063 <span class="go">      C:   6I: Gaps              :     8761</span>
    2064 <span class="go">      C:   6I: Mean SNR          :     44.4</span>
    2065 <span class="go">      C:   6I: Mean Multipath    :     0.00</span>
    2066 
    2067 <span class="go">      C:   7I: Observations      : 396233 (  511017)    77.54 %</span>
    2068 <span class="go">      C:   7I: Slips (file+found):        0 +       0</span>
    2069 <span class="go">      C:   7I: Gaps              :     8761</span>
    2070 <span class="go">      C:   7I: Mean SNR          :     43.6</span>
    2071 <span class="go">      C:   7I: Mean Multipath    :     0.30</span>
    2072 
    2073 <span class="go">  E: Satellites: 5</span>
    2074 <span class="go">  E: Signals   : 4    1X 5X 7X 8X</span>
    2075 
    2076 <span class="go">      E:   1X: Observations      :  74468 (  196545)    37.89 %</span>
    2077 <span class="go">      E:   1X: Slips (file+found):        0 +       2</span>
    2078 <span class="go">      E:   1X: Gaps              :     2758</span>
    2079 <span class="go">      E:   1X: Mean SNR          :     45.1</span>
    2080 <span class="go">      E:   1X: Mean Multipath    :     0.37</span>
    2081 
    2082 <span class="go">      E:   5X: Observations      :  74422 (  196545)    37.87 %</span>
    2083 <span class="go">      E:   5X: Slips (file+found):        0 +       2</span>
    2084 <span class="go">      E:   5X: Gaps              :     2785</span>
    2085 <span class="go">      E:   5X: Mean SNR          :     45.2</span>
    2086 <span class="go">      E:   5X: Mean Multipath    :     0.32</span>
    2087 
    2088 <span class="go">      E:   7X: Observations      :  74422 (  196545)    37.87 %</span>
    2089 <span class="go">      E:   7X: Slips (file+found):        0 +       0</span>
    2090 <span class="go">      E:   7X: Gaps              :     2785</span>
    2091 <span class="go">      E:   7X: Mean SNR          :     44.2</span>
    2092 <span class="go">      E:   7X: Mean Multipath    :     0.00</span>
    2093 
    2094 <span class="go">      E:   8X: Observations      :  74429 (  196545)    37.87 %</span>
    2095 <span class="go">      E:   8X: Slips (file+found):        0 +       0</span>
    2096 <span class="go">      E:   8X: Gaps              :     2784</span>
    2097 <span class="go">      E:   8X: Mean SNR          :     49.9</span>
    2098 <span class="go">      E:   8X: Mean Multipath    :     0.00</span>
    2099 
    2100 <span class="go">  G: Satellites: 28</span>
    2101 <span class="go">  G: Signals   : 4    1C 2W 2X 5X</span>
    2102 
    2103 <span class="go">      G:   1C: Observations      : 439952 ( 1100652)    39.97 %</span>
    2104 <span class="go">      G:   1C: Slips (file+found):        0 +      21</span>
    2105 <span class="go">      G:   1C: Gaps              :    10901</span>
    2106 <span class="go">      G:   1C: Mean SNR          :     44.0</span>
    2107 <span class="go">      G:   1C: Mean Multipath    :     0.63</span>
    2108 
    2109 <span class="go">      G:   2W: Observations      : 422560 ( 1100652)    38.39 %</span>
    2110 <span class="go">      G:   2W: Slips (file+found):        0 +      19</span>
    2111 <span class="go">      G:   2W: Gaps              :    11133</span>
    2112 <span class="go">      G:   2W: Mean SNR          :     31.1</span>
    2113 <span class="go">      G:   2W: Mean Multipath    :     0.42</span>
    2114 
    2115 <span class="go">      G:   2X: Observations      : 205305 ( 1100652)    18.65 %</span>
    2116 <span class="go">      G:   2X: Slips (file+found):        0 +      10</span>
    2117 <span class="go">      G:   2X: Gaps              :     7269</span>
    2118 <span class="go">      G:   2X: Mean SNR          :     43.3</span>
    2119 <span class="go">      G:   2X: Mean Multipath    :     0.47</span>
    2120 
    2121 <span class="go">      G:   5X: Observations      : 120638 ( 1100652)    10.96 %</span>
    2122 <span class="go">      G:   5X: Slips (file+found):        0 +       0</span>
    2123 <span class="go">      G:   5X: Gaps              :     3330</span>
    2124 <span class="go">      G:   5X: Mean SNR          :     49.9</span>
    2125 <span class="go">      G:   5X: Mean Multipath    :     0.00</span>
    2126 
    2127 <span class="go">  J: Satellites: 1</span>
    2128 <span class="go">  J: Signals   : 6    1C 1X 1Z 2X 5X 6L</span>
    2129 
    2130 <span class="go">      J:   1C: Observations      :  38040 (   39309)    96.77 %</span>
    2131 <span class="go">      J:   1C: Slips (file+found):        0 +       0</span>
    2132 <span class="go">      J:   1C: Gaps              :     1003</span>
    2133 <span class="go">      J:   1C: Mean SNR          :     49.0</span>
    2134 <span class="go">      J:   1C: Mean Multipath    :     0.33</span>
    2135 
    2136 <span class="go">      J:   1X: Observations      :  38040 (   39309)    96.77 %</span>
    2137 <span class="go">      J:   1X: Slips (file+found):        0 +       0</span>
    2138 <span class="go">      J:   1X: Gaps              :     1003</span>
    2139 <span class="go">      J:   1X: Mean SNR          :     51.5</span>
    2140 <span class="go">      J:   1X: Mean Multipath    :     0.32</span>
    2141 
    2142 <span class="go">      J:   1Z: Observations      :  38040 (   39309)    96.77 %</span>
    2143 <span class="go">      J:   1Z: Slips (file+found):        0 +       0</span>
    2144 <span class="go">      J:   1Z: Gaps              :     1003</span>
    2145 <span class="go">      J:   1Z: Mean SNR          :     48.4</span>
    2146 <span class="go">      J:   1Z: Mean Multipath    :     0.40</span>
    2147 
    2148 <span class="go">      J:   2X: Observations      :  38040 (   39309)    96.77 %</span>
    2149 <span class="go">      J:   2X: Slips (file+found):        0 +       0</span>
    2150 <span class="go">      J:   2X: Gaps              :     1003</span>
    2151 <span class="go">      J:   2X: Mean SNR          :     48.7</span>
    2152 <span class="go">      J:   2X: Mean Multipath    :     0.31</span>
    2153 
    2154 <span class="go">      J:   5X: Observations      :  38040 (   39309)    96.77 %</span>
    2155 <span class="go">      J:   5X: Slips (file+found):        0 +       0</span>
    2156 <span class="go">      J:   5X: Gaps              :     1003</span>
    2157 <span class="go">      J:   5X: Mean SNR          :     53.0</span>
    2158 <span class="go">      J:   5X: Mean Multipath    :     0.00</span>
    2159 
    2160 <span class="go">      J:   6L: Observations      :  38040 (   39309)    96.77 %</span>
    2161 <span class="go">      J:   6L: Slips (file+found):        0 +       0</span>
    2162 <span class="go">      J:   6L: Gaps              :     1003</span>
    2163 <span class="go">      J:   6L: Mean SNR          :     50.6</span>
    2164 <span class="go">      J:   6L: Mean Multipath    :     0.00</span>
    2165 
    2166 <span class="go">  R: Satellites: 23</span>
    2167 <span class="go">  R: Signals   : 4    1C 1P 2C 2P</span>
    2168 
    2169 <span class="go">      R:   1C: Observations      : 323918 (  904107)    35.83 %</span>
    2170 <span class="go">      R:   1C: Slips (file+found):        0 +      44</span>
    2171 <span class="go">      R:   1C: Gaps              :     7295</span>
    2172 <span class="go">      R:   1C: Mean SNR          :     44.9</span>
    2173 <span class="go">      R:   1C: Mean Multipath    :     0.77</span>
    2174 
    2175 <span class="go">      R:   1P: Observations      : 323761 (  904107)    35.81 %</span>
    2176 <span class="go">      R:   1P: Slips (file+found):        0 +      44</span>
    2177 <span class="go">      R:   1P: Gaps              :     7305</span>
    2178 <span class="go">      R:   1P: Mean SNR          :     43.4</span>
    2179 <span class="go">      R:   1P: Mean Multipath    :     0.58</span>
    2180 
    2181 <span class="go">      R:   2C: Observations      : 323521 (  904107)    35.78 %</span>
    2182 <span class="go">      R:   2C: Slips (file+found):        0 +      44</span>
    2183 <span class="go">      R:   2C: Gaps              :     7305</span>
    2184 <span class="go">      R:   2C: Mean SNR          :     40.8</span>
    2185 <span class="go">      R:   2C: Mean Multipath    :     0.56</span>
    2186 
    2187 <span class="go">      R:   2P: Observations      : 321751 (  904107)    35.59 %</span>
    2188 <span class="go">      R:   2P: Slips (file+found):        0 +      37</span>
    2189 <span class="go">      R:   2P: Gaps              :     7317</span>
    2190 <span class="go">      R:   2P: Mean SNR          :     40.3</span>
    2191 <span class="go">      R:   2P: Mean Multipath    :     0.49</span>
    2192 
    2193 <span class="go">  S: Satellites: 4</span>
    2194 <span class="go">  S: Signals   : 2    1C 5I</span>
    2195 
    2196 <span class="go">      S:   1C: Observations      : 152158 (  157236)    96.77 %</span>
    2197 <span class="go">      S:   1C: Slips (file+found):        0 +       1</span>
    2198 <span class="go">      S:   1C: Gaps              :     4013</span>
    2199 <span class="go">      S:   1C: Mean SNR          :     40.4</span>
    2200 <span class="go">      S:   1C: Mean Multipath    :     0.75</span>
    2201 
    2202 <span class="go">      S:   5I: Observations      :  76078 (  157236)    48.38 %</span>
    2203 <span class="go">      S:   5I: Slips (file+found):        0 +       1</span>
    2204 <span class="go">      S:   5I: Gaps              :     2007</span>
    2205 <span class="go">      S:   5I: Mean SNR          :     44.1</span>
    2206 <span class="go">      S:   5I: Mean Multipath    :     0.47</span>
    2207 
    2208 <span class="gp">&gt;</span> <span class="m">2015</span> <span class="m">09</span> <span class="m">09</span> <span class="m">13</span> <span class="m">04</span> 50.0000000 <span class="m">23</span>  1.2
    2209 <span class="go">R09   1.46   36.90   8  L1C s. 34.3  C1C  . 0.00  L1P s. 33.2  C1P  . 0.00  L2C s. 26.4  C2C  . 0.00  L2P s. 22.1  C2P  . 0.00</span>
    2210 <span class="go">R10  49.67   46.84   8  L1C .. 52.3  C1C  . 0.62  L1P .. 51.2  C1P  . 0.52  L2C .. 42.9  C2C  . 0.51  L2P .. 42.4  C2P  . 0.40</span>
    2211 <span class="go">R11  68.25 -168.71   8  L1C .. 52.1  C1C  . 0.32  L1P .. 50.2  C1P  . 0.38  L2C .. 44.6  C2C  . 0.40  L2P .. 43.4  C2P  . 0.36</span>
    2212 <span class="go">R12  15.62 -148.75   8  L1C .. 40.6  C1C  . 0.94  L1P .. 38.9  C1P  . 0.51  L2C .. 41.1  C2C  . 0.61  L2P .. 40.7  C2P  . 0.45</span>
    2213 <span class="go">R20  26.26  150.44   8  L1C .. 40.2  C1C  . 0.90  L1P .. 38.8  C1P  . 0.63  L2C .. 44.8  C2C  . 0.57  L2P .. 44.4  C2P  . 0.46</span>
    2214 <span class="go">R21  71.53 -163.80   8  L1C .. 53.3  C1C  . 0.32  L1P .. 51.6  C1P  . 0.40  L2C .. 50.3  C2C  . 0.43  L2P .. 49.3  C2P  . 0.39</span>
    2215 <span class="go">R22  40.38  -54.63   8  L1C .. 50.0  C1C  . 0.44  L1P .. 48.7  C1P  . 0.46  L2C .. 47.1  C2C  . 0.49  L2P .. 46.7  C2P  . 0.44</span>
    2216 <span class="go">E11  68.80  -54.74   8  L1X .. 49.9  C1X  . 0.22  L5X .. 49.8  C5X  . 0.19  L7X .. 49.1  C7X  . 0.00  L8X .. 55.3  C8X  . 0.00</span>
    2217 <span class="go">E12  58.84  141.76   8  L1X .. 50.0  C1X  . 0.14  L5X .. 49.4  C5X  . 0.21  L7X .. 48.2  C7X  . 0.00  L8X .. 55.1  C8X  . 0.00</span>
    2218 <span class="go">E18   0.00    0.00   8  L1X .. 53.5  C1X  . 0.11  L5X .. 51.0  C5X  . 0.15  L7X .. 50.1  C7X  . 0.00  L8X .. 56.5  C8X  . 0.00</span>
    2219 <span class="go">J01  21.34   23.40  12  L1C .. 41.2  C1C  . 0.59  L1X .. 43.2  C1X  . 0.38  L1Z .. 41.3  C1Z  . 0.58  L2X .. 40.0  C2X  . 0.47  L5X .. 44.7  C5X  . 0.00  L6L .. 41.6  C6L  . 0.00</span>
    2220 <span class="go">S27  16.04  -73.53   4  L1C .. 37.8  C1C  . 0.81  L5I .. 39.9  C5I  . 0.41</span>
    2221 <span class="go">S28  38.63  -50.63   4  L1C .. 45.5  C1C  . 0.49  L5I .. 47.4  C5I  . 0.48</span>
    2222 <span class="go">S29  41.28   46.44   2  L1C .. 43.2  C1C  . 0.00</span>
    2223 <span class="go">S37  41.28   46.44   2  L1C .. 42.1  C1C  . 0.00</span>
    2224 <span class="go">C01  45.38   41.07   6  L2I .. 42.1  C2I  . 0.20  L6I .. 45.1  C6I  . 0.00  L7I .. 46.0  C7I  . 0.22</span>
    2225 <span class="go">C02  36.53  -53.83   6  L2I .. 37.1  C2I  . 0.31  L6I .. 42.6  C6I  . 0.00  L7I .. 41.3  C7I  . 0.24</span>
    2226 <span class="go">C03  53.80  -10.40   6  L2I .. 42.8  C2I  . 0.19  L6I .. 47.3  C6I  . 0.00  L7I .. 46.0  C7I  . 0.21</span>
    2227 <span class="go">C04  30.52   62.20   6  L2I .. 37.3  C2I  . 0.33  L6I .. 42.4  C6I  . 0.00  L7I .. 41.3  C7I  . 0.25</span>
    2228 <span class="go">C05  19.48  -71.66   6  L2I .. 36.6  C2I  . 0.40  L6I .. 40.0  C6I  . 0.00  L7I .. 38.5  C7I  . 0.37</span>
    2229 <span class="go">C07  63.30   26.64   6  L2I .. 48.5  C2I  . 0.41  L6I .. 49.3  C6I  . 0.00  L7I .. 48.1  C7I  . 0.25</span>
    2230 <span class="go">C08  76.83 -113.07   6  L2I .. 48.9  C2I  . 0.22  L6I .. 50.5  C6I  . 0.00  L7I .. 48.7  C7I  . 0.24</span>
    2231 <span class="go">C10  83.00  -66.65   6  L2I .. 48.8  C2I  . 0.20  L6I .. 50.0  C6I  . 0.00  L7I .. 48.1  C7I  . 0.23</span>
    2232 <span class="gp">&gt;</span> <span class="m">2015</span> <span class="m">09</span> <span class="m">09</span> <span class="m">13</span> <span class="m">04</span> 52.0000000 <span class="m">33</span>  0.9
    2233 <span class="go">...</span>
    2234 </pre></div>
    2235 </div>
    2236 <p>Note that in addition to cycle slips recorded in the RINEX &#8216;file&#8217;, cycle slips identified by BNC are reported as &#8216;found&#8217;.</p>
    2237 </div>
    2238 <div class="section" id="plots-for-signals-mandatory-if-action-is-set-to-analyze">
    2239 <h4>Plots for Signals - mandatory if &#8216;Action&#8217; is set to &#8216;Analyze&#8217;<a class="headerlink" href="#plots-for-signals-mandatory-if-action-is-set-to-analyze" title="Permalink to this headline">¶</a></h4>
    2240 <p>Multipath and signal-to-noise sky plots as well as plots for satellite availability, elevation and PDOP are produced <a class="reference internal" href="#fig-13"><span class="std std-numref">(Fig. 11</span></a>, <a class="reference internal" href="#fig-14"><span class="std std-numref">12</span></a>, <a class="reference internal" href="#fig-15"><span class="std std-numref">13)</span></a> per GNSS system and frequency with the multipath analysis based on CnC observation types (n = band / frequency). The &#8216;Plots for signals&#8217; option lets you exactly specify the observation signals to be used for that and also enables the plot production. You can specify the navigation system (C = BDS, E = Galileo, G = GPS, J = QZSS, R = GLONASS, S = SBAS), the frequency, and the tracking mode or channel as defined in RINEX Version 3. Specifications for frequency and tracking mode or channel must be separated by ampersand character &#8216;&amp;&#8217;. Specifications for each navigation systems must be separated by blank character &#8216; &#8216;. The following string is an example for option field &#8216;Plots of signals&#8217;:</p>
    2241 <div class="highlight-console"><div class="highlight"><pre><span class="go">C:2&amp;7 E:1&amp;5 G:1&amp;2 J:1&amp;2 R:1&amp;2 S:1&amp;5</span>
    2242 </pre></div>
    2243 </div>
    2244 <p>This default configuration will present:</p>
    2245 <ul class="simple">
     1650</ul>
     1651and hence follows UNAVCO's famous TEQC program (see Estey and Meertens 1999). The remarkable thing about BNC in this context is that it supports RINEX Version 3 under GNU General Public License with full GUI support and graphics output.
     1652</p>
     1653
     1654<p><h4>2.6.1 <a name="reqcact">Action - optional</h4></p>
     1655<p>Select an action. Options are 'Edit/Concatenate' and 'Analyze'.
     1656<ul>
     1657<li>Select 'Edit/Concatenate' if you want to edit RINEX file content according to options specified under 'Set Edit Options' or if you want to concatenate several RINEX files.</li>
     1658<li>Select 'Analyze' if you are interested in a quality check of your RINEX file content.</li>
     1659</ul>
     1660</p>
     1661
     1662<p><h4>2.6.2 <a name="reqcinp">Input Files - mandatory</h4></p>
     1663<p>
     1664Specify full path to input RINEX Observation file(s), and<br>
     1665specify full path to input RINEX Navigation file(s).
     1666</p>
     1667<p>
     1668When specifying several input files, BNC will concatenate their contents. In case of RINEX Observation input files with different observation type header records, BNC will output only one set of adjusted observation type records in the RINEX header which fits to the whole file content.
     1669</p>
     1670<p>
     1671Note that you may specify several RINEX Version 2 Navigation files for GPS and GLONASS.
     1672</p>
     1673
     1674<p><h4>2.6.3 <a name="reqcout">Output Files - optional if 'Action' is set to 'Edit/Concatenate'</h4></p>
     1675<p>
     1676If 'Edit/Concatenate' is selected, specifying the full path to output RINEX Observation file(s) and specifying the full path to output RINEX Navigation file(s) is optional. Default are empty option fields, meaning that no RINEX files will be saved on disk.
     1677</p>
     1678
     1679<p><h4>2.6.4 <a name="reqclog">Logfile - optional</h4></p>
     1680<p>
     1681Specify the name of a logfile to save information on RINEX file Editing/Concatenation or Analysis. Default is an empty option field, meaning that no logfile will be saved.
     1682</p>
     1683
     1684<p>
     1685Note that logfiles from analyzing RINEX files may become quite large. Hence, BNC provides an option 'Summary only' to limit logfile content to some essential information in case 'Action' is set to 'Analyze'. The following is an example for a RINEX quality check analysis logfile:
     1686<pre>
     1687QC Format Version  : 1.1
     1688
     1689Navigation File(s) : BRDC2520.15P
     1690Ephemeris          : 2985 OK   0 BAD
     1691
     1692Observation File   : CUT02520.15O
     1693RINEX Version      : 3.03
     1694Marker Name        : CUT0
     1695Marker Number      : 59945M001
     1696Receiver           : TRIMBLE NETR9
     1697Antenna            : TRM59800.00     SCIS
     1698Position XYZ       :  -2364337.2699   4870285.5624  -3360809.8398
     1699Antenna dH/dE/dN   :   0.0000   0.0000   0.0000
     1700Start Time         : 2015-09-09 13.04.50.0
     1701End Time           : 2015-09-09 23.59.58.0
     1702Interval           : 1
     1703Navigation Systems : 6    C E G J R S
     1704Observation Types C: C2I L2I D2I S2I C6I L6I S6I C7I L7I S7I
     1705Observation Types E: C1X L1X D1X S1X C5X L5X S5X C7X L7X S7X C8X L8X S8X
     1706Observation Types G: C1C L1C D1C S1C C2W L2W S2W C2X L2X S2X C5X L5X S5X
     1707Observation Types J: C1C L1C D1C S1C C1X L1X S1X C1Z L1Z S1Z C2X L2X S2X C5X L5X S5X C6L L6L S6L
     1708Observation Types R: C1C L1C D1C S1C C1P L1P S1P C2C L2C S2C C2P L2P S2P
     1709Observation Types S: C1C L1C D1C S1C C5I L5I S5I
     1710
     1711  C: Satellites: 13
     1712  C: Signals   : 3    2I 6I 7I
     1713
     1714      C:   2I: Observations      : 396567 (  511017)    77.60 %
     1715      C:   2I: Slips (file+found):        0 +       0
     1716      C:   2I: Gaps              :     8676
     1717      C:   2I: Mean SNR          :     41.7
     1718      C:   2I: Mean Multipath    :     0.42
     1719
     1720      C:   6I: Observations      : 396233 (  511017)    77.54 %
     1721      C:   6I: Slips (file+found):        0 +       0
     1722      C:   6I: Gaps              :     8761
     1723      C:   6I: Mean SNR          :     44.4
     1724      C:   6I: Mean Multipath    :     0.00
     1725
     1726      C:   7I: Observations      : 396233 (  511017)    77.54 %
     1727      C:   7I: Slips (file+found):        0 +       0
     1728      C:   7I: Gaps              :     8761
     1729      C:   7I: Mean SNR          :     43.6
     1730      C:   7I: Mean Multipath    :     0.30
     1731
     1732  E: Satellites: 5
     1733  E: Signals   : 4    1X 5X 7X 8X
     1734
     1735      E:   1X: Observations      :  74468 (  196545)    37.89 %
     1736      E:   1X: Slips (file+found):        0 +       2
     1737      E:   1X: Gaps              :     2758
     1738      E:   1X: Mean SNR          :     45.1
     1739      E:   1X: Mean Multipath    :     0.37
     1740
     1741      E:   5X: Observations      :  74422 (  196545)    37.87 %
     1742      E:   5X: Slips (file+found):        0 +       2
     1743      E:   5X: Gaps              :     2785
     1744      E:   5X: Mean SNR          :     45.2
     1745      E:   5X: Mean Multipath    :     0.32
     1746
     1747      E:   7X: Observations      :  74422 (  196545)    37.87 %
     1748      E:   7X: Slips (file+found):        0 +       0
     1749      E:   7X: Gaps              :     2785
     1750      E:   7X: Mean SNR          :     44.2
     1751      E:   7X: Mean Multipath    :     0.00
     1752
     1753      E:   8X: Observations      :  74429 (  196545)    37.87 %
     1754      E:   8X: Slips (file+found):        0 +       0
     1755      E:   8X: Gaps              :     2784
     1756      E:   8X: Mean SNR          :     49.9
     1757      E:   8X: Mean Multipath    :     0.00
     1758
     1759  G: Satellites: 28
     1760  G: Signals   : 4    1C 2W 2X 5X
     1761
     1762      G:   1C: Observations      : 439952 ( 1100652)    39.97 %
     1763      G:   1C: Slips (file+found):        0 +      21
     1764      G:   1C: Gaps              :    10901
     1765      G:   1C: Mean SNR          :     44.0
     1766      G:   1C: Mean Multipath    :     0.63
     1767
     1768      G:   2W: Observations      : 422560 ( 1100652)    38.39 %
     1769      G:   2W: Slips (file+found):        0 +      19
     1770      G:   2W: Gaps              :    11133
     1771      G:   2W: Mean SNR          :     31.1
     1772      G:   2W: Mean Multipath    :     0.42
     1773
     1774      G:   2X: Observations      : 205305 ( 1100652)    18.65 %
     1775      G:   2X: Slips (file+found):        0 +      10
     1776      G:   2X: Gaps              :     7269
     1777      G:   2X: Mean SNR          :     43.3
     1778      G:   2X: Mean Multipath    :     0.47
     1779
     1780      G:   5X: Observations      : 120638 ( 1100652)    10.96 %
     1781      G:   5X: Slips (file+found):        0 +       0
     1782      G:   5X: Gaps              :     3330
     1783      G:   5X: Mean SNR          :     49.9
     1784      G:   5X: Mean Multipath    :     0.00
     1785
     1786  J: Satellites: 1
     1787  J: Signals   : 6    1C 1X 1Z 2X 5X 6L
     1788
     1789      J:   1C: Observations      :  38040 (   39309)    96.77 %
     1790      J:   1C: Slips (file+found):        0 +       0
     1791      J:   1C: Gaps              :     1003
     1792      J:   1C: Mean SNR          :     49.0
     1793      J:   1C: Mean Multipath    :     0.33
     1794
     1795      J:   1X: Observations      :  38040 (   39309)    96.77 %
     1796      J:   1X: Slips (file+found):        0 +       0
     1797      J:   1X: Gaps              :     1003
     1798      J:   1X: Mean SNR          :     51.5
     1799      J:   1X: Mean Multipath    :     0.32
     1800
     1801      J:   1Z: Observations      :  38040 (   39309)    96.77 %
     1802      J:   1Z: Slips (file+found):        0 +       0
     1803      J:   1Z: Gaps              :     1003
     1804      J:   1Z: Mean SNR          :     48.4
     1805      J:   1Z: Mean Multipath    :     0.40
     1806
     1807      J:   2X: Observations      :  38040 (   39309)    96.77 %
     1808      J:   2X: Slips (file+found):        0 +       0
     1809      J:   2X: Gaps              :     1003
     1810      J:   2X: Mean SNR          :     48.7
     1811      J:   2X: Mean Multipath    :     0.31
     1812
     1813      J:   5X: Observations      :  38040 (   39309)    96.77 %
     1814      J:   5X: Slips (file+found):        0 +       0
     1815      J:   5X: Gaps              :     1003
     1816      J:   5X: Mean SNR          :     53.0
     1817      J:   5X: Mean Multipath    :     0.00
     1818
     1819      J:   6L: Observations      :  38040 (   39309)    96.77 %
     1820      J:   6L: Slips (file+found):        0 +       0
     1821      J:   6L: Gaps              :     1003
     1822      J:   6L: Mean SNR          :     50.6
     1823      J:   6L: Mean Multipath    :     0.00
     1824
     1825  R: Satellites: 23
     1826  R: Signals   : 4    1C 1P 2C 2P
     1827
     1828      R:   1C: Observations      : 323918 (  904107)    35.83 %
     1829      R:   1C: Slips (file+found):        0 +      44
     1830      R:   1C: Gaps              :     7295
     1831      R:   1C: Mean SNR          :     44.9
     1832      R:   1C: Mean Multipath    :     0.77
     1833
     1834      R:   1P: Observations      : 323761 (  904107)    35.81 %
     1835      R:   1P: Slips (file+found):        0 +      44
     1836      R:   1P: Gaps              :     7305
     1837      R:   1P: Mean SNR          :     43.4
     1838      R:   1P: Mean Multipath    :     0.58
     1839
     1840      R:   2C: Observations      : 323521 (  904107)    35.78 %
     1841      R:   2C: Slips (file+found):        0 +      44
     1842      R:   2C: Gaps              :     7305
     1843      R:   2C: Mean SNR          :     40.8
     1844      R:   2C: Mean Multipath    :     0.56
     1845
     1846      R:   2P: Observations      : 321751 (  904107)    35.59 %
     1847      R:   2P: Slips (file+found):        0 +      37
     1848      R:   2P: Gaps              :     7317
     1849      R:   2P: Mean SNR          :     40.3
     1850      R:   2P: Mean Multipath    :     0.49
     1851
     1852  S: Satellites: 4
     1853  S: Signals   : 2    1C 5I
     1854
     1855      S:   1C: Observations      : 152158 (  157236)    96.77 %
     1856      S:   1C: Slips (file+found):        0 +       1
     1857      S:   1C: Gaps              :     4013
     1858      S:   1C: Mean SNR          :     40.4
     1859      S:   1C: Mean Multipath    :     0.75
     1860
     1861      S:   5I: Observations      :  76078 (  157236)    48.38 %
     1862      S:   5I: Slips (file+found):        0 +       1
     1863      S:   5I: Gaps              :     2007
     1864      S:   5I: Mean SNR          :     44.1
     1865      S:   5I: Mean Multipath    :     0.47
     1866
     1867> 2015 09 09 13 04 50.0000000 23  1.2
     1868R09   1.46   36.90   8  L1C s. 34.3  C1C  . 0.00  L1P s. 33.2  C1P  . 0.00  L2C s. 26.4  C2C  . 0.00  L2P s. 22.1  C2P  . 0.00
     1869R10  49.67   46.84   8  L1C .. 52.3  C1C  . 0.62  L1P .. 51.2  C1P  . 0.52  L2C .. 42.9  C2C  . 0.51  L2P .. 42.4  C2P  . 0.40
     1870R11  68.25 -168.71   8  L1C .. 52.1  C1C  . 0.32  L1P .. 50.2  C1P  . 0.38  L2C .. 44.6  C2C  . 0.40  L2P .. 43.4  C2P  . 0.36
     1871R12  15.62 -148.75   8  L1C .. 40.6  C1C  . 0.94  L1P .. 38.9  C1P  . 0.51  L2C .. 41.1  C2C  . 0.61  L2P .. 40.7  C2P  . 0.45
     1872R20  26.26  150.44   8  L1C .. 40.2  C1C  . 0.90  L1P .. 38.8  C1P  . 0.63  L2C .. 44.8  C2C  . 0.57  L2P .. 44.4  C2P  . 0.46
     1873R21  71.53 -163.80   8  L1C .. 53.3  C1C  . 0.32  L1P .. 51.6  C1P  . 0.40  L2C .. 50.3  C2C  . 0.43  L2P .. 49.3  C2P  . 0.39
     1874R22  40.38  -54.63   8  L1C .. 50.0  C1C  . 0.44  L1P .. 48.7  C1P  . 0.46  L2C .. 47.1  C2C  . 0.49  L2P .. 46.7  C2P  . 0.44
     1875E11  68.80  -54.74   8  L1X .. 49.9  C1X  . 0.22  L5X .. 49.8  C5X  . 0.19  L7X .. 49.1  C7X  . 0.00  L8X .. 55.3  C8X  . 0.00
     1876E12  58.84  141.76   8  L1X .. 50.0  C1X  . 0.14  L5X .. 49.4  C5X  . 0.21  L7X .. 48.2  C7X  . 0.00  L8X .. 55.1  C8X  . 0.00
     1877E18   0.00    0.00   8  L1X .. 53.5  C1X  . 0.11  L5X .. 51.0  C5X  . 0.15  L7X .. 50.1  C7X  . 0.00  L8X .. 56.5  C8X  . 0.00
     1878J01  21.34   23.40  12  L1C .. 41.2  C1C  . 0.59  L1X .. 43.2  C1X  . 0.38  L1Z .. 41.3  C1Z  . 0.58  L2X .. 40.0  C2X  . 0.47  L5X .. 44.7  C5X  . 0.00  L6L .. 41.6  C6L  . 0.00
     1879S27  16.04  -73.53   4  L1C .. 37.8  C1C  . 0.81  L5I .. 39.9  C5I  . 0.41
     1880S28  38.63  -50.63   4  L1C .. 45.5  C1C  . 0.49  L5I .. 47.4  C5I  . 0.48
     1881S29  41.28   46.44   2  L1C .. 43.2  C1C  . 0.00
     1882S37  41.28   46.44   2  L1C .. 42.1  C1C  . 0.00
     1883C01  45.38   41.07   6  L2I .. 42.1  C2I  . 0.20  L6I .. 45.1  C6I  . 0.00  L7I .. 46.0  C7I  . 0.22
     1884C02  36.53  -53.83   6  L2I .. 37.1  C2I  . 0.31  L6I .. 42.6  C6I  . 0.00  L7I .. 41.3  C7I  . 0.24
     1885C03  53.80  -10.40   6  L2I .. 42.8  C2I  . 0.19  L6I .. 47.3  C6I  . 0.00  L7I .. 46.0  C7I  . 0.21
     1886C04  30.52   62.20   6  L2I .. 37.3  C2I  . 0.33  L6I .. 42.4  C6I  . 0.00  L7I .. 41.3  C7I  . 0.25
     1887C05  19.48  -71.66   6  L2I .. 36.6  C2I  . 0.40  L6I .. 40.0  C6I  . 0.00  L7I .. 38.5  C7I  . 0.37
     1888C07  63.30   26.64   6  L2I .. 48.5  C2I  . 0.41  L6I .. 49.3  C6I  . 0.00  L7I .. 48.1  C7I  . 0.25
     1889C08  76.83 -113.07   6  L2I .. 48.9  C2I  . 0.22  L6I .. 50.5  C6I  . 0.00  L7I .. 48.7  C7I  . 0.24
     1890C10  83.00  -66.65   6  L2I .. 48.8  C2I  . 0.20  L6I .. 50.0  C6I  . 0.00  L7I .. 48.1  C7I  . 0.23
     1891> 2015 09 09 13 04 52.0000000 33  0.9
     1892...
     1893</pre>
     1894</p>
     1895<p>
     1896Note that in addition to cycle slips recorded in the RINEX 'file', cycle slips identified by BNC are reported as 'found'.
     1897</p>
     1898
     1899<p><h4>2.6.5 <a name="reqcplots">Plots for Signals - mandatory if 'Action' is set to 'Analyze'</h4></p>
     1900<p>
     1901Multipath and signal-to-noise sky plots as well as plots for satellite availability, elevation and PDOP are produced per GNSS system and frequency with the multipath analysis based on CnC observation types (n = band / frequency). The 'Plots for signals' option lets you exactly specify the observation signals to be used for that and also enables the plot production. You can specify the navigation system (C = BDS, E = Galileo, G = GPS, J = QZSS, R = GLONASS, S = SBAS), the frequency, and the tracking mode or channel as defined in RINEX Version 3. Specifications for frequency and tracking mode or channel must be separated by ampersand character '&'. Specifications for each navigation systems must be separated by blank character ' '. The following string is an example for option field 'Plots of signals':
     1902<br>
     1903<pre>
     1904   C:2&7 E:1&5 G:1&2 J:1&2 R:1&2 S:1&5
     1905</pre>
     1906This default configuration will present:
     1907<ul>
    22461908<li>BDS plots for L2 and L7,</li>
    22471909<li>Galileo plots for L1 and L5,</li>
    … …  
    22511913<li>SBAS plots for L1 and L5.</li>
    22521914</ul>
    2253 </div>
    2254 <div class="section" id="directory-for-plots-optional-if-action-is-set-to-analyze">
    2255 <h4>Directory for Plots - optional if &#8216;Action&#8217; is set to &#8216;Analyze&#8217;<a class="headerlink" href="#directory-for-plots-optional-if-action-is-set-to-analyze" title="Permalink to this headline">¶</a></h4>
    2256 <p>If &#8216;Analyze&#8217; <a class="reference internal" href="#fig-12"><span class="std std-numref">(see Fig. 16)</span></a> is selected, specifying the path to a directory where plot files will be saved is optional. Filenames will be composed from the RINEX input filename(s) plus suffix &#8216;PNG&#8217; to indicate the plot file format in use. Default is an empty option field, meaning that plots will not be saved on disk.</p>
    2257 </div>
    2258 <div class="section" id="set-edit-options-mandatory-if-action-is-set-to-edit-concatenate">
    2259 <h4>Set Edit Options - mandatory if &#8216;Action&#8217; is set to &#8216;Edit/Concatenate&#8217;<a class="headerlink" href="#set-edit-options-mandatory-if-action-is-set-to-edit-concatenate" title="Permalink to this headline">¶</a></h4>
    2260 <p>Once the &#8216;Edit/Concatenate&#8217; action is selected, you have to &#8216;Set Edit Options&#8217; <a class="reference internal" href="#fig-10"><span class="std std-numref">(see Fig. 14)</span></a>. BNC lets you specify the RINEX version, a signal priority list when mapping RINEX Version 3 to Version 2, the sampling interval, begin and end of file, operator, observation types, comment lines, and marker, antenna, receiver details. Note that some of the specifications for editing and concatenation <a class="reference internal" href="#fig-11"><span class="std std-numref">(see Fig. 15)</span></a> are only meaningful for RINEX Observation files but not for RINEX Navigation files.</p>
    2261 <p>A note on converting RINEX Version 3 to RINEX Version 2 and vice versa:</p>
    2262 <ul>
    2263 <li><p class="first">The RINEX Version 2 format ignores signal generation attributes. Therefore, when converting RINEX Version 3 to Version 2 Observation files, BNC is forced to somehow map signals with attributes to signals without attributes although this cannot be done in one-to-one correspondence. Hence we introduce a &#8216;Version 2 Signal Priority&#8217; list of attributes (characters, forming a string) for mapping Version 3 to Version 2, see details in section &#8216;RINEX Observations/Version 2&#8217;. Signal priorities can be specified as equal for all systems, as system specific or as system and frequency specific. For example:</p>
    2264 <ul class="simple">
    2265 <li>&#8216;<a href="#id76"><span class="problematic" id="id77">CWPX_</span></a>?&#8217; (General signal priorities valid for all GNSS)</li>
    2266 <li>&#8216;C:IQX I:ABCX&#8217; (System specific signal priorities for BDS and IRNSS)</li>
    2267 <li>&#8216;G:12&amp;PWCSLXYN G:5&amp;IQX R:12&amp;PC R:3&amp;IQX&#8217; (System and frequency specific signal priorities)</li>
    2268 </ul>
    2269 <p>The default &#8216;Signal priority&#8217; list is defined as follows: &#8216;G:12&amp;PWCSLXYN G:5&amp;IQX R:12&amp;PC R:3&amp;IQX E:16&amp;BCX E:578&amp;IQX J:1&amp;SLXCZ J:26&amp;SLX J:5&amp;IQX C:IQX I:ABCX S:1&amp;C S:5&amp;IQX&#8217;</p>
    2270 </li>
    2271 <li><p class="first">When converting RINEX Version 2 to Version 3 Observation files, the tracking mode or channel information in the (last character out of the 3-character) observation code is left blank if unknown. This is a compromise, knowing that it is not in accordance with the RINEX Version 3 documentation.</p>
    2272 </li>
    2273 </ul>
    2274 <p>Optionally you may specify a &#8216;RUN BY&#8217; string to be included in the emerging new RINEX file header. Default is an empty option field, meaning the operator&#8217;s ID is automatically used as &#8216;RUN BY&#8217; string.</p>
    2275 <p>You can specify a list of observation codes in field &#8216;Use Obs. Types&#8217; to limit the output file content to specific observation codes. GNSS system characters in that list are followed by a colon and a 2- or 3-character observation code. A 2-character observation code would mean that all available tracking modes of the affected observation type and frequency will be accepted as part of the RINEX output file. Observation codes are separated by a blank character. Default is an empty option field, meaning that any input observation code will become part of the RINEX output file.</p>
    2276 <p>Specifying comment line text to be added to the emerging new RINEX file header is another option. Any introduction of a newline through &#8216;\n&#8217; in this enforces the beginning of a further comment line. Comment lines will be added to the header immediately after the &#8216;PGM / RUN BY / DATE&#8217; record. Default is an empty option field, meaning that no additional comment line will be added to the RINEX header.</p>
    2277 <p>If you specify a &#8216;New&#8217; but no &#8216;Old&#8217; marker/antenna/receiver name, the corresponding data field in the emerging new RINEX Observation file will be filled accordingly. If you in addition specify an &#8216;Old&#8217; marker/antenna/receiver name, the corresponding data field in the emerging new RINEX Observation file will only be filled accordingly where &#8216;Old&#8217; specifications match existing file content.</p>
    2278 <div class="figure" id="id27">
    2279 <span id="fig-13"></span><a class="reference internal image-reference" href="_images/fig_13.png"><img alt="_images/fig_13.png" src="_images/fig_13.png" style="width: 961.2px; height: 629.1px;" /></a>
    2280 <p class="caption"><span class="caption-number">Fig. 11 </span><span class="caption-text">Example for satellite availability, elevation and PDOP plots as a result of a RINEX Quality Check analysis with BNC</span></p>
    2281 </div>
    2282 <div class="figure" id="id28">
    2283 <span id="fig-14"></span><a class="reference internal image-reference" href="_images/fig_14.png"><img alt="_images/fig_14.png" src="_images/fig_14.png" style="width: 920.7px; height: 593.1px;" /></a>
    2284 <p class="caption"><span class="caption-number">Fig. 12 </span><span class="caption-text">Sky plot examples for multipath, part of RINEX quality check analysis with BNC</span></p>
    2285 </div>
    2286 <div class="figure" id="id29">
    2287 <span id="fig-15"></span><a class="reference internal image-reference" href="_images/fig_15.png"><img alt="_images/fig_15.png" src="_images/fig_15.png" style="width: 918.0px; height: 589.5px;" /></a>
    2288 <p class="caption"><span class="caption-number">Fig. 13 </span><span class="caption-text">Sky plot examples for signal-to-noise ratio, part of RINEX quality check analysis with BNC</span></p>
    2289 </div>
    2290 <div class="figure" id="id30">
    2291 <span id="fig-10"></span><a class="reference internal image-reference" href="_images/fig_10.png"><img alt="_images/fig_10.png" src="_images/fig_10.png" style="width: 680.4px; height: 522.0px;" /></a>
    2292 <p class="caption"><span class="caption-number">Fig. 14 </span><span class="caption-text">Example for BNC&#8217;s &#8216;RINEX Editing Options&#8217; window</span></p>
    2293 </div>
    2294 <div class="figure" id="id31">
    2295 <span id="fig-11"></span><a class="reference internal image-reference" href="_images/fig_11.png"><img alt="_images/fig_11.png" src="_images/fig_11.png" style="width: 900.9px; height: 648.9px;" /></a>
    2296 <p class="caption"><span class="caption-number">Fig. 15 </span><span class="caption-text">Example for RINEX file concatenation with BNC</span></p>
    2297 </div>
    2298 <div class="figure" id="id32">
    2299 <span id="fig-12"></span><a class="reference internal image-reference" href="_images/fig_12.png"><img alt="_images/fig_12.png" src="_images/fig_12.png" style="width: 900.0px; height: 649.8000000000001px;" /></a>
    2300 <p class="caption"><span class="caption-number">Fig. 16 </span><span class="caption-text">Example for creating RINEX quality check analysis graphics output with BNC</span></p>
    2301 </div>
    2302 </div>
    2303 <div class="section" id="command-line-no-window-optional">
    2304 <span id="index-18"></span><h4>Command Line, No Window - optional<a class="headerlink" href="#command-line-no-window-optional" title="Permalink to this headline">¶</a></h4>
    2305 <p>BNC applies options from the configuration file but allows updating every one of them on the command line while the content of the configuration file remains unchanged, see section on &#8216;Command Line Options&#8217;. Note the following syntax for Command Line Interface (CLI) options:</p>
    2306 <div class="highlight-console"><div class="highlight"><pre><span class="go">--key &lt;keyName&gt; &lt;keyValue&gt;</span>
    2307 </pre></div>
    2308 </div>
    2309 <p>Parameter &lt;keyName&gt; stands for the name of an option contained in the configuration file and &lt;keyValue&gt; stands for the value you want to assign to it. This functionality may be helpful in the &#8216;RINEX Editing &amp; QC&#8217; context when running BNC on a routine basis for maintaining a RINEX file archive. The following example for a Linux platform calls BNC in &#8216;no window&#8217; mode with a local configuration file &#8216;rnx.conf&#8217; for concatenating four 15min RINEX files from station TLSE residing in the working directory to produce an hourly RINEX Version 3 file with 30 seconds sampling interval:</p>
    2310 <div class="highlight-console"><div class="highlight"><pre><span class="go">./bnc --nw --conf rnx.conf --key reqcAction Edit/Concatenate --key reqcObsFile &quot;tlse119b00.12o,tlse119b15.12o,tlse119b30.12o,tlse119b45.12o&quot; --key reqcOutObsFile tlse119b.12o --key reqcRnxVersion 3 --key reqcSampling 30</span>
    2311 </pre></div>
    2312 </div>
    2313 <p>You may use asterisk &#8216;*&#8217; and/or question mark &#8216;?&#8217; wildcard characters as shown with the following globbing command line option to specify a selection of files in the working directory:</p>
    2314 <div class="highlight-console"><div class="highlight"><pre><span class="go">--key reqcObsFile &quot;tlse*&quot;</span>
    2315 </pre></div>
    2316 </div>
    2317 <p>or</p>
    2318 <div class="highlight-console"><div class="highlight"><pre><span class="go">--key reqcObsFile tlse\*</span>
    2319 </pre></div>
    2320 </div>
    2321 <p>The following Linux command line produces RINEX QC plots (see Estey and Meertens 1999) offline in &#8216;no window&#8217; mode and saves them in directory <code class="docutils literal"><span class="pre">/home/user</span></code>. Introducing a dummy configuration file <code class="docutils literal"><span class="pre">/dev/null</span></code> makes sure that no configuration options previously saved on disc are used:</p>
    2322 <div class="highlight-console"><div class="highlight"><pre><span class="go">/home/user/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile CUT02070.12O --key reqcNavFile BRDC2070.12P --key reqcOutLogFile CUT0.txt --key reqcPlotDir /home/user --nw</span>
    2323 </pre></div>
    2324 </div>
    2325 <p>The following Linux command line produces the same RINEX QC plots in interactive autoStart mode:</p>
    2326 <div class="highlight-console"><div class="highlight"><pre><span class="go">/home/user/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile CUT02070.12O --key reqcNavFile BRDC2070.12P --key reqcOutLogFile CUT0.txt --key startTab 4 --key autoStart 2</span>
    2327 </pre></div>
    2328 </div>
    2329 <p><a class="reference internal" href="#tab-rinex-ed-qc-opt"><span class="std std-numref">Table 3</span></a> gives a list of available key names for &#8216;RINEX Editing &amp; QC&#8217; (short: REQC, pronounced &#8216;rek&#8217;) options and their meaning, cf. section &#8216;Configuration Examples&#8217;.</p>
    2330 <table border="1" class="docutils" id="id33">
    2331 <span id="tab-rinex-ed-qc-opt"></span><caption><span class="caption-number">Table 3 </span><span class="caption-text">Key names for &#8216;RINEX Editing &amp; QC&#8217; options and their meaning.</span><a class="headerlink" href="#id33" title="Permalink to this table">¶</a></caption>
    2332 <colgroup>
    2333 <col width="32%" />
    2334 <col width="68%" />
    2335 </colgroup>
    2336 <thead valign="bottom">
    2337 <tr class="row-odd"><th class="head"><strong>Keyname</strong></th>
    2338 <th class="head"><strong>Meaning</strong></th>
    2339 </tr>
    2340 </thead>
    2341 <tbody valign="top">
    2342 <tr class="row-even"><td>reqcAction</td>
    2343 <td>RINEX Editing &amp; QC action</td>
    2344 </tr>
    2345 <tr class="row-odd"><td>reqcObsFile</td>
    2346 <td>RINEX Observation input file(s)</td>
    2347 </tr>
    2348 <tr class="row-even"><td>reqcNavFile</td>
    2349 <td>RINEX Navigation input files(s)</td>
    2350 </tr>
    2351 <tr class="row-odd"><td>reqcOutObsFile</td>
    2352 <td>RINEX Observation output file</td>
    2353 </tr>
    2354 <tr class="row-even"><td>reqcOutNavFile</td>
    2355 <td>RINEX Navigation output file</td>
    2356 </tr>
    2357 <tr class="row-odd"><td>reqcOutLogFile</td>
    2358 <td>Logfile</td>
    2359 </tr>
    2360 <tr class="row-even"><td>reqcLogSummaryOnly</td>
    2361 <td>Summary of Logfile</td>
    2362 </tr>
    2363 <tr class="row-odd"><td>reqcSkyPlotSignals</td>
    2364 <td>Plots for signals</td>
    2365 </tr>
    2366 <tr class="row-even"><td>reqcPlotDir</td>
    2367 <td>RINEX QC plot directory</td>
    2368 </tr>
    2369 <tr class="row-odd"><td>reqcRnxVersion</td>
    2370 <td>RINEX version of emerging new file</td>
    2371 </tr>
    2372 <tr class="row-even"><td>reqcSampling</td>
    2373 <td>Sampling interval of emerging new RINEX file</td>
    2374 </tr>
    2375 <tr class="row-odd"><td>reqcV2Priority</td>
    2376 <td>Version 2 Signal Priority</td>
    2377 </tr>
    2378 <tr class="row-even"><td>reqcStartDateTime</td>
    2379 <td>Begin of emerging new RINEX file</td>
    2380 </tr>
    2381 <tr class="row-odd"><td>reqcEndDateTime</td>
    2382 <td>End of emerging new RINEX file</td>
    2383 </tr>
    2384 <tr class="row-even"><td>reqcRunBy</td>
    2385 <td>Operator name</td>
    2386 </tr>
    2387 <tr class="row-odd"><td>reqcUseObsTypes</td>
    2388 <td>GNSS systems and observation types</td>
    2389 </tr>
    2390 <tr class="row-even"><td>reqcComment</td>
    2391 <td>Additional comment lines</td>
    2392 </tr>
    2393 <tr class="row-odd"><td>reqcOldMarkerName</td>
    2394 <td>Old marker name</td>
    2395 </tr>
    2396 <tr class="row-even"><td>reqcNewMarkerName</td>
    2397 <td>New marker name</td>
    2398 </tr>
    2399 <tr class="row-odd"><td>reqcOldAntennaName</td>
    2400 <td>Old antenna name</td>
    2401 </tr>
    2402 <tr class="row-even"><td>reqcNewAntennaName</td>
    2403 <td>New antenna name</td>
    2404 </tr>
    2405 <tr class="row-odd"><td>reqcOldAntennaNumber</td>
    2406 <td>Old antenna number</td>
    2407 </tr>
    2408 <tr class="row-even"><td>reqcNewAntennaNumber</td>
    2409 <td>New antenna number</td>
    2410 </tr>
    2411 <tr class="row-odd"><td>reqcOldAntennadN</td>
    2412 <td>Old component of north eccentricity</td>
    2413 </tr>
    2414 <tr class="row-even"><td>reqcOldAntennadE</td>
    2415 <td>Old component of east eccentricity</td>
    2416 </tr>
    2417 <tr class="row-odd"><td>reqcOldAntennadU</td>
    2418 <td>Old component of up eccentricity</td>
    2419 </tr>
    2420 <tr class="row-even"><td>reqcNewAntennadN</td>
    2421 <td>New component of north eccentricity</td>
    2422 </tr>
    2423 <tr class="row-odd"><td>reqcNewAntennadE</td>
    2424 <td>New component of east eccentricity</td>
    2425 </tr>
    2426 <tr class="row-even"><td>reqcNewAntennadU</td>
    2427 <td>New component of up eccentricity</td>
    2428 </tr>
    2429 <tr class="row-odd"><td>reqcOldReceiverName</td>
    2430 <td>Old receiver name</td>
    2431 </tr>
    2432 <tr class="row-even"><td>reqcNewReceiverName</td>
    2433 <td>New receiver name</td>
    2434 </tr>
    2435 <tr class="row-odd"><td>reqcOldReceiverNumber</td>
    2436 <td>Old receiver number</td>
    2437 </tr>
    2438 <tr class="row-even"><td>reqcNewReceiverNumber</td>
    2439 <td>New receiver number</td>
    2440 </tr>
    2441 </tbody>
     1915</p>
     1916
     1917<p><h4>2.6.6 <a name="reqcdir">Directory for Plots - optional if 'Action' is set to 'Analyze'</h4></p>
     1918<p>
     1919If 'Analyze' is selected, specifying the path to a directory where plot files will be saved is optional. Filenames will be composed from the RINEX input filename(s) plus suffix 'PNG' to indicate the plot file format in use. Default is an empty option field, meaning that plots will not be saved on disk.
     1920</p>
     1921
     1922<p><h4>2.6.7 <a name="reqcedit">Set Edit Options - mandatory if 'Action' is set to 'Edit/Concatenate'</h4></p>
     1923<p>Once the 'Edit/Concatenate' action is selected, you have to 'Set Edit Options'. BNC lets you specify the RINEX version, a signal priority list when mapping RINEX Version 3 to Version 2, the sampling interval, begin and end of file, operator, observation types, comment lines, and marker, antenna, receiver details. Note that some of the specifications for editing and concatenation are only meaningful for RINEX Observation files but not for RINEX Navigation files.
     1924</p>
     1925
     1926<p>
     1927A note on converting RINEX Version 3 to RINEX Version 2 and vice versa:
     1928</p>
     1929
     1930<p>
     1931<ul>
     1932<li>The RINEX Version 2 format ignores signal generation attributes. Therefore, when converting <u>RINEX Version 3 to Version 2</u> Observation files, BNC is forced to somehow map signals with attributes to signals without attributes although this cannot be done in one-to-one correspondence. Hence we introduce a 'Version 2 Signal Priority' list of attributes (characters, forming a string) for mapping Version 3 to Version 2, see details in section 'RINEX Observations/Version 2'. Signal priorities can be specified as equal for all systems, as system specific or as system and frequency specific. For example:</li>
     1933<ul>
     1934<li>'CWPX_?' (General signal priorities valid for all GNSS)</li>
     1935<li>'C:IQX I:ABCX' (System specific signal priorities for BDS and IRNSS)</li>
     1936<li>'G:12&PWCSLXYN G:5&IQX R:12&PC R:3&IQX' (System and frequency specific signal priorities)</li>
     1937</ul>
     1938</p>
     1939<p>
     1940The default 'Signal priority' list is defined as follows:
     1941<ul>
     1942 <li>'G:12&PWCSLXYN G:5&IQX R:12&PC R:3&IQX E:16&BCX E:578&IQX J:1&SLXCZ J:26&SLX J:5&IQX C:IQX I:ABCX S:1&C S:5&IQX'</li>
     1943</ul>
     1944</p>
     1945<p>
     1946<li>When converting <u>RINEX Version 2 to Version 3</u> Observation files, the tracking mode or channel information in the (last character out of the 3-character) observation code is left blank if unknown. This is a compromise, knowing that it is not in accordance with the RINEX Version 3 documentation.</li>
     1947</ul>
     1948</p>
     1949
     1950<p>
     1951Optionally you may specify a 'RUN BY' string to be included in the emerging new RINEX file header. Default is an empty option field, meaning the operator's ID is automatically used as 'RUN BY' string.
     1952</p>
     1953
     1954<p>
     1955You can specify a list of observation codes in field 'Use Obs. Types' to limit the output file content to specific observation codes. GNSS system characters in that list are followed by a colon and a 2- or 3-Character observation code. A 2-Character observation code would mean that all available tracking modes of the affected observation type and frequency will be accepted as part of the RINEX output file. Observation codes are separated by a blank character. Default is an empty option field, meaning that any input observation code will become part of the RINEX output file.
     1956</p>
     1957
     1958<p>
     1959Specifying comment line text to be added to the emerging new RINEX file header is another option. Any introduction of a newline through '\n' in this enforces the beginning of a further comment line. Comment lines will be added to the header immediately after the 'PGM / RUN BY / DATE' record. Default is an empty option field, meaning that no additional comment line will be added to the RINEX header.
     1960</p>
     1961
     1962<p>
     1963If you specify a 'New' but no 'Old' marker/antenna/receiver name, the corresponding data field in the emerging new RINEX Observation file will be filled accordingly. If you in addition specify an 'Old' marker/antenna/receiver name, the corresponding data field in the emerging new RINEX Observation file will only be filled accordingly where 'Old' specifications match existing file content.
     1964</p>
     1965
     1966<p><img src="IMG/screenshot27.png"/></p>
     1967<p><u>Figure 10:</u> Example for BNC's 'RINEX Editing Options' window</p>
     1968
     1969<p><img src="IMG/screenshot25.png"/></p>
     1970<p><u>Figure 11:</u> Example for RINEX file concatenation with BNC</p>
     1971
     1972<p><img src="IMG/screenshot29.png"/></p>
     1973<p><u>Figure 12:</u> Example for creating RINEX quality check analysis graphics output with BNC</p>
     1974
     1975<p><img src="IMG/screenshot30.png"/></p>
     1976<p><u>Figure 13:</u> Example for satellite availability, elevation and PDOP plots as a result of a RINEX quality check analysis with BNC</p>
     1977
     1978<p><img src="IMG/screenshot33.png"/></p>
     1979<p><u>Figure 14:</u> Sky plot examples for multipath, part of RINEX quality check analysis with BNC</p>
     1980
     1981<p><img src="IMG/screenshot34.png"/></p>
     1982<p><u>Figure 15:</u> Sky plot examples for signal-to-noise ratio, part of RINEX quality check analysis with BNC</p>
     1983
     1984<p><h4>2.6.8 <a name="reqccommand">Command Line, No Window - optional</h4></p>
     1985<p>
     1986BNC applies options from the configuration file but allows updating every one of them on the command line while the content of the configuration file remains unchanged, see section on 'Command Line Options'. Note the following syntax for Command Line Interface (CLI) options:
     1987</p>
     1988<pre>
     1989   --key &lt;keyName&gt; &lt;keyValue&gt;
     1990</pre>
     1991<p>
     1992Parameter &lt;keyName&gt; stands for the name of an option contained in the configuration file and &lt;keyValue&gt; stands for the value you want to assign to it. This functionality may be helpful in the 'RINEX Editing & QC' context when running BNC on a routine basis for maintaining a RINEX file archive.
     1993</p>
     1994The following example for a Linux platform calls BNC in 'no window' mode with a local configuration file 'rnx.conf' for concatenating four 15min RINEX files from station TLSE residing in the working directory to produce an hourly RINEX Version 3 file with 30 seconds sampling interval:
     1995</p>
     1996<pre>
     1997   ./bnc --nw --conf rnx.conf --key reqcAction Edit/Concatenate --key reqcObsFile
     1998   "tlse119b00.12o,tlse119b15.12o,tlse119b30.12o,tlse119b45.12o" --key
     1999   reqcOutObsFile tlse119b.12o --key reqcRnxVersion 3 --key reqcSampling 30
     2000</pre>
     2001<p>
     2002You may use asterisk '*' and/or question mark '?' wildcard characters as shown with the following globbing command line option to specify a selection of files in the working directory:
     2003<pre>
     2004   --key reqcObsFile "tlse*"
     2005or:
     2006   --key reqcObsFile tlse\*
     2007</pre>
     2008</p>
     2009
     2010<p>The following Linux command line produces RINEX QC plots (see Estey and Meertens 1999) offline in 'no window' mode and saves them in directory '/home/user'. Introducing a dummy configuration file /dev/null makes sure that no configuration options previously saved on disc are used:</p>
     2011<pre>
     2012   /home/user/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile
     2013   CUT02070.12O --key reqcNavFile BRDC2070.12P --key reqcOutLogFile CUT0.txt --key
     2014   reqcPlotDir /home/user --nw
     2015</pre>
     2016</p>
     2017<p>The following Linux command line produces the same RINEX QC plots in interactive autoStart mode:
     2018</p>
     2019<pre>
     2020   /home/user/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile
     2021   CUT02070.12O --key reqcNavFile BRDC2070.12P --key reqcOutLogFile CUT0.txt --key
     2022   --key startTab 4 --key autoStart 2
     2023</pre>
     2024</p>
     2025
     2026<p>
     2027The following is a list of available key names for '<u>R</u>INEX <u>E</u>diting & <u>QC</u>' (short: REQC, pronounced 'rek') options and their meaning, cf. section 'Configuration Examples':
     2028</p>
     2029<table>
     2030<tr></tr>
     2031<tr><td><b>Keyname</b></td><td><b>Meaning</b></td></tr>
     2032<tr><td>reqcAction</td><td>RINEX Editing & QC action</td></tr>
     2033<tr><td>reqcObsFile</td><td>RINEX Observation input file(s)</td></tr>
     2034<tr><td>reqcNavFile</td><td>RINEX Navigation input files(s)</td></tr>
     2035<tr><td>reqcOutObsFile</td><td>RINEX Observation output file</td></tr>
     2036<tr><td>reqcOutNavFile</td><td>RINEX Navigation output file</td></tr>
     2037<tr><td>reqcOutLogFile</td><td>Logfile</td></tr>
     2038<tr><td>reqcLogSummaryOnly</td><td>Summary of Logfile</td></tr>
     2039<tr><td>reqcSkyPlotSignals</td><td>Plots for signals</td></tr>
     2040<tr><td>reqcPlotDir</td><td>RINEX QC plot directory</td></tr>
     2041<tr><td>reqcRnxVersion</td><td>RINEX version of emerging new file</td></tr>
     2042<tr><td>reqcSampling</td><td>Sampling interval of emerging new RINEX file</td></tr>
     2043<tr><td>reqcV2Priority</td><td>Version 2 Signal Priority</td></tr>
     2044<tr><td>reqcStartDateTime</td><td>Begin of emerging new RINEX file</td></tr>
     2045<tr><td>reqcEndDateTime</td><td>End of emerging new RINEX file</td></tr>
     2046<tr><td>reqcRunBy</td><td>Operator name</td></tr>
     2047<tr><td>reqcUseObsTypes</td><td>GNSS systems and observation types</td></tr>
     2048<tr><td>reqcComment</td><td>Additional comment lines</td></tr>
     2049<tr><td>reqcOldMarkerName</td><td>Old marker name</td></tr>
     2050<tr><td>reqcNewMarkerName</td><td>New marker name</td></tr>
     2051<tr><td>reqcOldAntennaName</td><td>Old antenna name</td></tr>
     2052<tr><td>reqcNewAntennaName</td><td>New antenna name</td></tr>
     2053<tr><td>reqcOldAntennaNumber</td><td>Old antenna number</td></tr>
     2054<tr><td>reqcNewAntennaNumber</td><td>New antenna number</td></tr>
     2055<tr><td>reqcOldAntennadN</td><td>Old component of north eccentricity</td></tr>
     2056<tr><td>reqcOldAntennadE</td><td>Old component of east eccentricity</td></tr>
     2057<tr><td>reqcOldAntennadU</td><td>Old component of up eccentricity</td></tr>
     2058<tr><td>reqcNewAntennadN</td><td>New component of north eccentricity</td></tr>
     2059<tr><td>reqcNewAntennadE</td><td>New component of east eccentricity</td></tr>
     2060<tr><td>reqcNewAntennadU</td><td>New component of up eccentricity</td></tr>
     2061<tr><td>reqcOldReceiverName</td><td>Old receiver name</td></tr>
     2062<tr><td>reqcNewReceiverName</td><td>New receiver name</td></tr>
     2063<tr><td>reqcOldReceiverNumber</td><td>Old receiver number</td></tr>
     2064<tr><td>reqcNewReceiverNumber</td><td>New receiver number</td></tr>
    24422065</table>
    2443 </div>
    2444 </div>
    2445 <div class="section" id="sp3-comparison">
    2446 <h3>SP3 Comparison<a class="headerlink" href="#sp3-comparison" title="Permalink to this headline">¶</a></h3>
    2447 <p>BNC allows to compare the contents of two files with GNSS orbit and clock data in SP3 format <a class="reference internal" href="#fig-16"><span class="std std-numref">(Fig. 17)</span></a>. SP3 ASCII files basically contain a list of records over a certain period of time. Each record carries a time tag, the XYZ position of the satellite&#8217;s Center of Mass at that time and the corresponding satellite clock value. Both SP3 files may contain some records for different epochs. If so, then BNC only compares records for identical epochs. BNC accepts that a specific GNSS system or a specific satellite is only available from one of the SP3 files. Note that BNC does not interpolate orbits when comparing SP3 files.</p>
    2448 <div class="figure" id="id34">
    2449 <span id="fig-16"></span><a class="reference internal image-reference" href="_images/fig_16.png"><img alt="_images/fig_16.png" src="_images/fig_16.png" style="width: 883.0px; height: 316.0px;" /></a>
    2450 <p class="caption"><span class="caption-number">Fig. 17 </span><span class="caption-text">Example for comparing two SP3 files with satellite orbit and clock data using BNC</span></p>
    2451 </div>
    2452 <p>To compare satellite clocks provided by the two files, BNC first converts coordinate differences dX,dY,dZ into along track, out-of-plane, and radial components. It then corrects the clock differences for the radial components of coordinate differences. RMS values of clock differences are finally calculated after introducing at first one offset &#8216;per epoch for all satellites&#8217; and secondly one offset &#8216;per satellite for all epochs&#8217;.</p>
    2453 <div class="section" id="input-sp3-files-optional">
    2454 <h4>Input SP3 Files - optional<a class="headerlink" href="#input-sp3-files-optional" title="Permalink to this headline">¶</a></h4>
    2455 <p>Specify the full paths of two SP3 files, separate them by comma.</p>
    2456 </div>
    2457 <div class="section" id="exclude-satellites-optional">
    2458 <h4>Exclude Satellites - optional<a class="headerlink" href="#exclude-satellites-optional" title="Permalink to this headline">¶</a></h4>
    2459 <p>You may want to exclude one or more satellites in your SP3 files from the comparison. Or you may like to exclude all satellites of a specific GNSS system from the comparison. The following are example strings to be entered for excluding satellites from the comparison:</p>
    2460 <ul class="simple">
     2066
     2067<p><h4>2.7 <a name="sp3comp">SP3 Comparison</h4></p>
     2068<p>
     2069BNC allows to compare the contents of two files with GNSS orbit and clock data in SP3 format. SP3 ASCII files basically contain a list of records over a certain period of time. Each record carries a time tag, the XYZ position of the satellite's Center of Mass at that time and the corresponding satellite clock value. Both SP3 files may contain some records for different epochs. If so, then BNC only compares records for identical epochs. BNC accepts that a specific GNSS system or a specific satellite is only available from one of the SP3 files. Note that BNC does not interpolate orbits when comparing SP3 files.
     2070</p>
     2071<p>
     2072To compare satellite clocks provided by the two files, BNC first converts coordinate differences dX,dY,dZ into along track, out-of-plane, and radial components. It then corrects the clock differences for the radial components of coordinate differences. RMS values of clock differences are finally calculated after introducing at first one offset 'per epoch for all satellites' and secondly one offset 'per satellite for all epochs'.
     2073</p>
     2074
     2075<p><h4>2.7.1 <a name="sp3input">Input SP3 Files - optional</h4></p>
     2076<p>
     2077Specify the full paths of two SP3 files, separate them by comma.
     2078</p>
     2079
     2080<p><h4>2.7.2 <a name="sp3exclude">Exclude Satellites - optional</h4></p>
     2081<p>
     2082You may want to exclude one or more satellites in your SP3 files from the comparison. Or you may like to exclude all satellites of a specific GNSS system from the comparison. The following are example strings to be entered for excluding satellites from the comparison.
     2083<ul>
    24612084<li>G05,G31 (excluding GPS satellites with PRN 5 and 31)</li>
    24622085<li>G (excluding all GPS satellites)</li>
    … …  
    24652088<li>G04,G31,R (excluding GPS satellites with PRN 4 and 31 as well as all GLONASS satellites)</li>
    24662089</ul>
    2467 <p>Default is an empty option field, meaning that no satellite will be excluded from the comparison.</p>
    2468 </div>
    2469 <div class="section" id="logfile-mandatory-if-input-sp3-files-is-set">
    2470 <h4>Logfile - mandatory if &#8216;Input SP3 Files&#8217; is set<a class="headerlink" href="#logfile-mandatory-if-input-sp3-files-is-set" title="Permalink to this headline">¶</a></h4>
    2471 <p>Specify a logfile name to save results of the SP3 file comparison.</p>
    2472 <p>The following is an example for a SP3 Comparison logfile:</p>
    2473 <div class="highlight-console"><div class="highlight"><pre><span class="go">! SP3 File 1: esr18283.sp3</span>
    2474 <span class="go">! SP3 File 2: rt218283.sp3</span>
    2475 <span class="go">!</span>
    2476 <span class="go">!  MJD       PRN  radial   along   out        clk    clkRed   iPRN</span>
    2477 <span class="go">! ----------------------------------------------------------------</span>
    2478 <span class="go">57043.000000 G01 -0.0001 -0.0318 -0.0354     0.0266  0.0267     1</span>
    2479 <span class="go">57043.000000 G02 -0.0062 -0.0198  0.0111     0.0082  0.0143     2</span>
    2480 <span class="go">57043.000000 G03  0.0052  0.0060  0.0032     0.0386  0.0334     3</span>
    2481 <span class="go">57043.000000 G04 -0.0049 -0.0193 -0.0071    -0.1696 -0.1648     4</span>
    2482 <span class="go">57043.000000 G05  0.0027  0.0154  0.0275     0.0345  0.0318     5</span>
    2483 <span class="go">57043.000000 G06  0.0247 -0.0398 -0.0111     0.0483  0.0236     6</span>
    2484 <span class="go">57043.000000 G07 -0.0052  0.2854 -0.0975    -0.0940 -0.0888     7</span>
    2485 <span class="go">57043.000000 G08 -0.0247  0.0937 -0.0184    -0.1563 -0.1316     8</span>
    2486 <span class="go">57043.000000 G09  0.0152  0.0583  0.0086    -0.0144 -0.0296     9</span>
    2487 <span class="go">...</span>
    2488 <span class="go">...</span>
    2489 <span class="go">...</span>
    2490 <span class="go">!</span>
    2491 <span class="go">! RMS[m]</span>
    2492 <span class="go">!</span>
    2493 <span class="go">!   PRN  radial   along   out     nOrb    clk   clkRed   nClk    Offset</span>
    2494 <span class="go">! ---------------------------------------------------------------------</span>
    2495 <span class="go">!   G01  0.0151  0.0377  0.0196     96  0.0157  0.0154     96    0.0152</span>
    2496 <span class="go">!   G02  0.0083  0.0278  0.0228     96  0.0097  0.0124     96   -0.0626</span>
    2497 <span class="go">!   G03  0.0105  0.0311  0.0307     96  0.0352  0.0309     96    0.0898</span>
    2498 <span class="go">!   G04  0.0113  0.0334  0.0154     94  0.0725  0.0707     94   -0.5087</span>
    2499 <span class="go">!   G05  0.0103  0.0319  0.0299     96  0.0417  0.0403     96    0.1185</span>
    2500 <span class="go">!   G06  0.0182  0.0509  0.0302     96  0.0218  0.0166     96    0.0040</span>
    2501 <span class="go">!   G07  0.0337  0.1632  0.0463     96  0.0483  0.0435     96    0.3031</span>
    2502 <span class="go">!   G08  0.0228  0.0741  0.0321     88  0.0616  0.0561     88   -0.2232</span>
    2503 <span class="go">...</span>
    2504 <span class="go">...</span>
    2505 <span class="go">...</span>
    2506 <span class="go">!   R20  0.0637  0.2115  0.1131     96  0.1580  0.1345     96    0.7371</span>
    2507 <span class="go">!   R21  0.0475  0.1657  0.0880     96  0.1123  0.0840     96   -0.4133</span>
    2508 <span class="go">!   R22  0.0125  0.1249  0.0646     96  0.0414  0.0444     96   -0.7375</span>
    2509 <span class="go">!   R23  0.0435  0.1503  0.0573     96  0.0987  0.1099     96    0.6620</span>
    2510 <span class="go">!   R24  0.0278  0.2026  0.1186     96  0.1446  0.1303     96   -1.1470</span>
    2511 <span class="go">!</span>
    2512 <span class="go">! Total  0.0262  0.0938  0.0492   5268  0.0620  0.0561   5268</span>
    2513 </pre></div>
    2514 </div>
    2515 <p>The first part of this output uses the abbreviations in <a class="reference internal" href="#tab-log-abb-1"><span class="std std-numref">Table 4</span></a>.</p>
    2516 <table border="1" class="docutils" id="id35">
    2517 <span id="tab-log-abb-1"></span><caption><span class="caption-number">Table 4 </span><span class="caption-text">Abbreviations in first part of BNC log files when comparing SP3 files</span><a class="headerlink" href="#id35" title="Permalink to this table">¶</a></caption>
    2518 <colgroup>
    2519 <col width="17%" />
    2520 <col width="83%" />
    2521 </colgroup>
    2522 <thead valign="bottom">
    2523 <tr class="row-odd"><th class="head"><strong>Abbreviation</strong></th>
    2524 <th class="head"><strong>Meaning</strong></th>
    2525 </tr>
    2526 </thead>
    2527 <tbody valign="top">
    2528 <tr class="row-even"><td>MJD</td>
    2529 <td>Modified Julian Date</td>
    2530 </tr>
    2531 <tr class="row-odd"><td>PRN</td>
    2532 <td>Satellite specification</td>
    2533 </tr>
    2534 <tr class="row-even"><td>radial</td>
    2535 <td>Radial component of orbit coordinate difference [m]</td>
    2536 </tr>
    2537 <tr class="row-odd"><td>along</td>
    2538 <td>Along track component of orbit coordinate difference [m]</td>
    2539 </tr>
    2540 <tr class="row-even"><td>out</td>
    2541 <td>Out-of-plane component of orbit coordinate difference [m]</td>
    2542 </tr>
    2543 <tr class="row-odd"><td>clk</td>
    2544 <td>Clock difference [m]</td>
    2545 </tr>
    2546 <tr class="row-even"><td>clkRed</td>
    2547 <td>Clock difference reduced by radial component of orbit coordinate difference [m]</td>
    2548 </tr>
    2549 <tr class="row-odd"><td>iPRN</td>
    2550 <td>BNC internal sequence number</td>
    2551 </tr>
    2552 </tbody>
     2090</p>
     2091<p>
     2092Default is an empty option field, meaning that no satellite will be excluded from the comparison.
     2093</p>
     2094
     2095<p><h4>2.7.3 <a name="sp3log">Logfile - mandatory if 'Input SP3 Files' is set</h4></p>
     2096<p>
     2097Specify a logfile name to save results of the SP3 file comparison.
     2098</p>
     2099<p>
     2100The following is an example for a SP3 Comparison logfile:
     2101</p>
     2102<pre>
     2103
     2104! SP3 File 1: esr18283.sp3
     2105! SP3 File 2: rt218283.sp3
     2106!
     2107!  MJD       PRN  radial   along   out        clk    clkRed   iPRN
     2108! ----------------------------------------------------------------
     210957043.000000 G01 -0.0001 -0.0318 -0.0354     0.0266  0.0267     1
     211057043.000000 G02 -0.0062 -0.0198  0.0111     0.0082  0.0143     2
     211157043.000000 G03  0.0052  0.0060  0.0032     0.0386  0.0334     3
     211257043.000000 G04 -0.0049 -0.0193 -0.0071    -0.1696 -0.1648     4
     211357043.000000 G05  0.0027  0.0154  0.0275     0.0345  0.0318     5
     211457043.000000 G06  0.0247 -0.0398 -0.0111     0.0483  0.0236     6
     211557043.000000 G07 -0.0052  0.2854 -0.0975    -0.0940 -0.0888     7
     211657043.000000 G08 -0.0247  0.0937 -0.0184    -0.1563 -0.1316     8
     211757043.000000 G09  0.0152  0.0583  0.0086    -0.0144 -0.0296     9
     2118...
     2119...
     2120...
     2121!
     2122! RMS[m]
     2123!
     2124!   PRN  radial   along   out     nOrb    clk   clkRed   nClk    Offset
     2125! ---------------------------------------------------------------------
     2126!   G01  0.0151  0.0377  0.0196     96  0.0157  0.0154     96    0.0152
     2127!   G02  0.0083  0.0278  0.0228     96  0.0097  0.0124     96   -0.0626
     2128!   G03  0.0105  0.0311  0.0307     96  0.0352  0.0309     96    0.0898
     2129!   G04  0.0113  0.0334  0.0154     94  0.0725  0.0707     94   -0.5087
     2130!   G05  0.0103  0.0319  0.0299     96  0.0417  0.0403     96    0.1185
     2131!   G06  0.0182  0.0509  0.0302     96  0.0218  0.0166     96    0.0040
     2132!   G07  0.0337  0.1632  0.0463     96  0.0483  0.0435     96    0.3031
     2133!   G08  0.0228  0.0741  0.0321     88  0.0616  0.0561     88   -0.2232
     2134...
     2135...
     2136...
     2137!   R20  0.0637  0.2115  0.1131     96  0.1580  0.1345     96    0.7371
     2138!   R21  0.0475  0.1657  0.0880     96  0.1123  0.0840     96   -0.4133
     2139!   R22  0.0125  0.1249  0.0646     96  0.0414  0.0444     96   -0.7375
     2140!   R23  0.0435  0.1503  0.0573     96  0.0987  0.1099     96    0.6620
     2141!   R24  0.0278  0.2026  0.1186     96  0.1446  0.1303     96   -1.1470
     2142!
     2143! Total  0.0262  0.0938  0.0492   5268  0.0620  0.0561   5268
     2144</pre>
     2145<p>
     2146The first part of this output uses the following abbreviations:
     2147</p>
     2148
     2149<table>
     2150<tr><td>'MJD' &nbsp;</td><td>Modified Julian Date</td></tr>
     2151<tr><td>'PRN' &nbsp;</td><td>Satellite specification</td></tr>
     2152<tr><td>'radial' &nbsp;</td><td>Radial component of orbit coordinate difference [m]</td></tr>
     2153<tr><td>'along' &nbsp;</td><td>Along track component of orbit coordinate difference [m]</td></tr>
     2154<tr><td>'out' &nbsp;</td><td>Out-of-plane component of orbit coordinate difference [m]</td></tr>
     2155<tr><td>'clk' &nbsp;</td><td>Clock difference [m]</td></tr>
     2156<tr><td>'clkRed' &nbsp;</td><td>Clock difference reduced by radial component of orbit coordinate difference [m]</td></tr>
     2157<tr><td>'iPRN' &nbsp;</td><td>BNC internal sequence number</td></tr>
    25532158</table>
    2554 <p>The second part following string &#8216;RMS&#8217; provides a summary of the comparison using the abbreviations in <a class="reference internal" href="#tab-log-abb-2"><span class="std std-numref">Table 5</span></a>.</p>
    2555 <table border="1" class="docutils" id="id36">
    2556 <span id="tab-log-abb-2"></span><caption><span class="caption-number">Table 5 </span><span class="caption-text">Abbreviations in second part of BNC log files when comparing SP3 files</span><a class="headerlink" href="#id36" title="Permalink to this table">¶</a></caption>
    2557 <colgroup>
    2558 <col width="17%" />
    2559 <col width="83%" />
    2560 </colgroup>
    2561 <thead valign="bottom">
    2562 <tr class="row-odd"><th class="head"><strong>Abbreviation</strong></th>
    2563 <th class="head"><strong>Meaning</strong></th>
    2564 </tr>
    2565 </thead>
    2566 <tbody valign="top">
    2567 <tr class="row-even"><td>PRN</td>
    2568 <td>Satellite specification</td>
    2569 </tr>
    2570 <tr class="row-odd"><td>radial</td>
    2571 <td>RMS of radial component of orbit coordinate differences [m]</td>
    2572 </tr>
    2573 <tr class="row-even"><td>along</td>
    2574 <td>RMS of along track component of orbit coordinate differences [m]</td>
    2575 </tr>
    2576 <tr class="row-odd"><td>out</td>
    2577 <td>RMS of out-of-plane component of orbit coordinate differences [m]</td>
    2578 </tr>
    2579 <tr class="row-even"><td>nOrb</td>
    2580 <td>Number of epochs used in in orbit comparison</td>
    2581 </tr>
    2582 <tr class="row-odd"><td>clk</td>
    2583 <td>RMS of clock differences [m]</td>
    2584 </tr>
    2585 <tr class="row-even"><td>clkRed</td>
    2586 <td>RMS of clock differences after reduction of radial orbit differences [m]</td>
    2587 </tr>
    2588 <tr class="row-odd"><td>nClk</td>
    2589 <td>Number of epochs use in clock comparisons</td>
    2590 </tr>
    2591 <tr class="row-even"><td>Offset</td>
    2592 <td>Clock offset [m]</td>
    2593 </tr>
    2594 </tbody>
     2159<p>
     2160The second part following string 'RMS' provides a summary of the comparison using the following
     2161abbreviations:<br>
     2162</p>
     2163<table>
     2164<tr><td>'PRN' &nbsp;</td><td>Satellite specification</td></tr>
     2165<tr><td>'radial' &nbsp;</td><td>RMS of radial component of orbit coordinate differences [m]</td></tr>
     2166<tr><td>'along' &nbsp;</td><td>RMS of along track component of orbit coordinate differences [m]</td></tr>
     2167<tr><td>'out' &nbsp;</td><td>RMS of out-of-plane component of orbit coordinate differences [m]</td></tr>
     2168<tr><td>'nOrb' &nbsp;</td><td>Number of epochs used in in orbit comparison</td></tr>
     2169<tr><td>'clk' &nbsp;</td><td>RMS of clock differences [m]</td></tr>
     2170<tr><td>'clkRed' &nbsp;</td><td>RMS of clock differences after reduction of radial orbit differences [m]</td></tr>
     2171<tr><td>'nClk' &nbsp;</td><td>Number of epochs use in clock comparisons</td></tr>
     2172<tr><td>'Offset' &nbsp;</td><td>Clock offset [m]</td></tr>
    25952173</table>
    2596 </div>
    2597 </div>
    2598 <div class="section" id="broadcast-corrections">
    2599 <span id="index-19"></span><h3>Broadcast Corrections<a class="headerlink" href="#broadcast-corrections" title="Permalink to this headline">¶</a></h3>
    2600 <p>Differential GNSS and RTK operation using RTCM streams is currently based on corrections and/or raw measurements from single or multiple reference stations. This approach to differential positioning uses &#8216;observation space&#8217; information. The representation with the RTCM standard can be called &#8216;Observation Space Representation&#8217; (OSR).</p>
    2601 <p>An alternative to the observation space approach is the so-called &#8216;state space&#8217; approach. The principle here is to provide information on individual error sources. It can be called &#8216;State Space Representation&#8217; (SSR). For a rover position, state space information concerning precise satellite clocks, orbits, ionosphere, troposphere et cetera can be converted into observation space and used to correct the rover observables for more accurate positioning. Alternatively, the state information can be used directly in the rover&#8217;s processing or adjustment model.</p>
    2602 <p>RTCM is currently developing Version 3 messages to transport SSR corrections in real-time. They refer to satellite Antenna Phase Center (APC). SSR messages adopted or recently proposed concern:</p>
    2603 <p>SSR, Step I:</p>
    2604 <ul class="simple">
     2174
     2175<br>
     2176
     2177<p><img src="IMG/screenshot36.png"/></p>
     2178<p><u>Figure 16:</u> Example for comparing two SP3 files with satellite orbit and clock data using BNC</p>
     2179
     2180<p><h4>2.8 <a name="correct">Broadcast Corrections</h4></p>
     2181<p>
     2182Differential GNSS and RTK operation using RTCM streams is currently based on corrections and/or raw measurements from single or multiple reference stations. This approach to differential positioning uses 'observation space' information. The representation with the RTCM standard can be called 'Observation Space Representation' (OSR).
     2183</p>
     2184<p>
     2185An alternative to the observation space approach is the so-called 'state space' approach. The principle here is to provide information on individual error sources. It can be called 'State Space Representation' (SSR). For a rover position, state space information concerning precise satellite clocks, orbits, ionosphere, troposphere et cetera can be converted into observation space and used to correct the rover observables for more accurate positioning. Alternatively, the state information can be used directly in the rover's processing or adjustment model.
     2186</p>
     2187<p>
     2188RTCM is currently developing Version 3 messages to transport SSR corrections in real-time. They refer to satellite Antenna Phase Center (APC). SSR messages adopted or recently proposed concern:
     2189
     2190<ul>
     2191<li>SSR, Step I:</li>
     2192<ul>
    26052193<li>Orbit corrections to Broadcast Ephemeris</li>
    26062194<li>Clock corrections to Broadcast Ephemeris</li>
    … …  
    26112199<li>Code biases</li>
    26122200</ul>
    2613 <p>SSR, Step II:</p>
    2614 <ul class="simple">
     2201<li>SSR, Step II:</li>
     2202<ul>
    26152203<li>Phase biases</li>
    26162204<li>Vertical Total Electron Content (VTEC)</li>
    26172205</ul>
    2618 <p>RTCM Version 3 streams carrying these messages may be used e.g. to support real-time Precise Point Positioning (PPP) applications.</p>
    2619 <p>When using clocks from Broadcast Ephemeris (with or without applied corrections) or clocks from SP3 files, it may be important to understand that they are not corrected for the conventional periodic relativistic effect. Chapter 10 of the IERS Conventions 2003 mentions that the conventional periodic relativistic correction to the satellite clock (to be added to the broadcast clock) is computed as</p>
    2620 <div class="math">
    2621 \[dt =  -2 (R * V) / c^2\]</div>
    2622 <p>where <span class="math">\(R*V\)</span> is the scalar product of the satellite position and velocity and <span class="math">\(c\)</span> is the speed of light. This can also be found in the GPS Interface Specification, IS-GPS-200, Revision D, 7 March 2006.</p>
    2623 <p>Orbit corrections are provided in along-track, out-of-plane and radial components. These components are defined in the Earth-Centered, Earth-Fixed reference frame of the Broadcast Ephemeris. For an observer in this frame, the along-track component is aligned in both direction and sign with the velocity vector, the out-of-plane component is perpendicular to the plane defined by the satellite position and velocity vectors, and the radial direction is perpendicular to the along track and out-of-plane ones. The three components form a right-handed orthogonal system.</p>
    2624 <p>After applying corrections, the satellite position and clock is referred to the &#8216;ionospheric free&#8217; phase center of the antenna which is compatible with the broadcast orbit reference.</p>
    2625 <p>The orbit and clock corrections do not include local effects like Ocean Loading, Solid Earth Tides or tropospheric delays. However, accurate single frequency applications can be corrected for global ionospheric effects using so-call VTEC messages for global ionospheric state parameters.</p>
    2626 <p>While we have a plain ASCII standard for saving Broadcast Ephemeris in RINEX Navigation files, we do not have an equivalent standard for corrections to Broadcast Ephemeris. Hence, BNC saves Broadcast Correction files following its own format definition. The filename convention for Broadcast Correction files follows the convention for RINEX Version 2 files except for the last character of the filename suffix which is set to &#8216;C&#8217;.</p>
    2627 <div class="section" id="broadcast-correction-file-format">
    2628 <h4>Broadcast Correction file format<a class="headerlink" href="#broadcast-correction-file-format" title="Permalink to this headline">¶</a></h4>
    2629 <p>BNC&#8217;s Broadcast Correction files contain blocks of records in plain ASCII format. Each block covers information about one specific topic and starts with an &#8216;Epoch Record&#8217;. The leading &#8216;Epoch Record&#8217; of each block in a Broadcast Correction file contains 11 parameters. Example:</p>
    2630 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> ORBIT <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2631 </pre></div>
    2632 </div>
    2633 <p>Their meaning is as follows:</p>
    2634 <ol class="arabic simple">
    2635 <li>Special character &#8216;&gt;&#8217; is the first character in each &#8216;Epoch Record&#8217; (as we have it in RINEX Version 3)</li>
    2636 <li>SSR message or topic descriptor, valid descriptors are: ORBIT, CLOCK, CODE_BIAS, PHASE_BIAS, and VTEC</li>
     2206</ul>
     2207
     2208<p>
     2209RTCM Version 3 streams carrying these messages may be used e.g. to support real-time Precise Point Positioning (PPP) applications.
     2210</p>
     2211<p>
     2212When using clocks from Broadcast Ephemeris (with or without applied corrections) or clocks from SP3 files, it may be important to understand that they are not corrected for the conventional periodic relativistic effect. Chapter 10 of the IERS Conventions 2003 mentions that the conventional periodic relativistic correction to the satellite clock (to be added to the broadcast clock) is computed as
     2213</p>
     2214
     2215<pre>
     2216 &nbsp; &nbsp; dt =  -2 (R * V) / c<sup>2</sup>
     2217</pre>
     2218
     2219<p>
     2220where R * V is the scalar product of the satellite position and velocity and c is the speed of light. This can also be found in the GPS Interface Specification, IS-GPS-200, Revision D, 7 March 2006.
     2221</p>
     2222
     2223<p>
     2224Orbit corrections are provided in along-track, out-of-plane and radial components. These components are defined in the Earth-Centered, Earth-Fixed reference frame of the Broadcast Ephemeris. For an observer in this frame, the along-track component is aligned in both direction and sign with the velocity vector, the out-of-plane component is perpendicular to the plane defined by the satellite position and velocity vectors, and the radial direction is perpendicular to the along track and out-of-plane ones. The three components form a right-handed orthogonal system.
     2225</p>
     2226
     2227<p>
     2228After applying corrections, the satellite position and clock is referred to the 'ionospheric free' phase center of the antenna which is compatible with the broadcast orbit reference.
     2229</p>
     2230
     2231<p>
     2232The orbit and clock corrections do not include local effects like Ocean Loading, Solid Earth Tides or tropospheric delays. However, accurate single frequency applications can be corrected for global ionospheric effects using so-call VTEC messages for global ionospheric state parameters.
     2233</p>
     2234
     2235<p>
     2236While we have a plain ASCII standard for saving Broadcast Ephemeris in RINEX Navigation files, we do not have an equivalent standard for corrections to Broadcast Ephemeris. Hence, BNC saves Broadcast Correction files following its own format definition. The filename convention for Broadcast Correction files follows the convention for RINEX Version 2 files except for the last character of the filename suffix which is set to 'C'.
     2237</p>
     2238
     2239<p>
     2240BNC's Broadcast Correction files contain blocks of records in plain ASCII format. Each block covers information about one specific topic and starts with an 'Epoch Record'.
     2241</p>
     2242<p>
     2243<b>The 'Epoch Record' of a Broadcast Correction block</b>
     2244</p>
     2245
     2246<p>
     2247The leading 'Epoch Record' of each block in a Broadcast Correction file contains 11 parameters. Example:
     2248</p>
     2249<pre>
     2250> ORBIT 2015 06 17 11 43 35.0 2 53 CLK93
     2251</pre>
     2252<p>
     2253Their meaning is as follows:
     2254</p>
     2255<ol type="1">
     2256<li>Special character '&#62;' is the first character in each 'Epoch Record' (as we have it in RINEX Version 3)</li>
     2257<li>SSR message or topic descriptor, valid descriptors are:<br>ORBIT, CLOCK, CODE_BIAS, PHASE_BIAS, or VTEC</li>
    26372258<li>Year, GPS time</li>
    26382259<li>Month, GPS time</li>
    … …  
    26412262<li>Minute, GPS time</li>
    26422263<li>Second, GPS time</li>
    2643 <li>SSR message update interval indicator:</li>
    2644 </ol>
    2645 <blockquote>
    2646 <div><ul class="simple">
     2264<li>SSR message update interval indicator</li>
     2265<ul>
    26472266<li>0 = 1 sec</li>
    26482267<li>1 = 2 sec</li>
    … …  
    26622281<li>15 = 10800 sec</li>
    26632282</ul>
    2664 </div></blockquote>
    2665 <ol class="arabic simple" start="10">
    26662283<li>Number of following records in this block</li>
    26672284<li>Mountpoint, source/stream indicator</li>
    26682285</ol>
    2669 <p>Each of the following &#8216;satellite records&#8217; in such a block carries information for one specific satellite. Undefined parameters in the &#8216;satellite records&#8217; could be set to zero &#8216;0.000&#8217;.</p>
    2670 <div class="section" id="example-for-block-orbit-carrying-orbit-corrections">
    2671 <h5>Example for block &#8216;ORBIT&#8217; carrying orbit corrections<a class="headerlink" href="#example-for-block-orbit-carrying-orbit-corrections" title="Permalink to this headline">¶</a></h5>
    2672 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> ORBIT <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2673 <span class="go">G01   9     0.5134     0.3692     0.6784        0.0000    -0.0000    -0.0000</span>
    2674 <span class="go">G02  25    57.6817   139.0492   -91.3456        0.5436    -0.6931     1.0173</span>
    2675 <span class="go">G03  79   -32.1768   191.8368  -121.6540        0.2695     0.2296     0.4879</span>
    2676 <span class="go">...</span>
    2677 <span class="go">G32  82     1.8174     1.1704     0.2200       -0.0002    -0.0000    -0.0001</span>
    2678 <span class="go">R01  59     0.7819    -0.6968     0.7388       -0.0001     0.0004     0.0004</span>
    2679 <span class="go">R02  59     0.5816    -0.5800    -0.2004        0.0001    -0.0006     0.0001</span>
    2680 <span class="go">R03  59     0.4635    -0.9104    -0.3832        0.0001     0.0001     0.0005</span>
    2681 <span class="go">...</span>
    2682 <span class="go">R24  59     0.5935     2.0732    -0.6884       -0.0000     0.0004     0.0003</span>
    2683 </pre></div>
    2684 </div>
    2685 <p>Records in this block provide the following satellite specific information:</p>
    2686 <ul class="simple">
     2286Each of the following 'satellite records' in such a block carries information for one specific satellite. Undefined parameters in the 'satellite records' could be set to zero &quot;0.000&quot;.
     2287
     2288<p>
     2289<b>Example for block 'ORBIT' carrying orbit corrections</b>
     2290</p>
     2291<pre>
     2292> ORBIT 2015 06 17 11 43 35.0 2 53 CLK93
     2293G01   9     0.5134     0.3692     0.6784        0.0000    -0.0000    -0.0000
     2294G02  25    57.6817   139.0492   -91.3456        0.5436    -0.6931     1.0173
     2295G03  79   -32.1768   191.8368  -121.6540        0.2695     0.2296     0.4879
     2296...
     2297G32  82     1.8174     1.1704     0.2200       -0.0002    -0.0000    -0.0001
     2298R01  59     0.7819    -0.6968     0.7388       -0.0001     0.0004     0.0004
     2299R02  59     0.5816    -0.5800    -0.2004        0.0001    -0.0006     0.0001
     2300R03  59     0.4635    -0.9104    -0.3832        0.0001     0.0001     0.0005
     2301...
     2302R24  59     0.5935     2.0732    -0.6884       -0.0000     0.0004     0.0003
     2303</pre>
     2304<p>
     2305Records in this block provide the following satellite specific information:
     2306<ul>
    26872307<li>GNSS Indicator and Satellite Vehicle Pseudo Random Number</li>
    26882308<li>IOD referring to Broadcast Ephemeris set</li>
    … …  
    26942314<li>Velocity of Out-of-plane Component of Orbit Correction to Broadcast Ephemeris [m/s]</li>
    26952315</ul>
    2696 </div>
    2697 <div class="section" id="example-for-block-clock-carrying-clock-corrections">
    2698 <h5>Example for block &#8216;CLOCK&#8217; carrying clock corrections<a class="headerlink" href="#example-for-block-clock-carrying-clock-corrections" title="Permalink to this headline">¶</a></h5>
    2699 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> CLOCK <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2700 <span class="go">G01   9     0.5412     0.0000     0.0000</span>
    2701 <span class="go">G02  25    11.1811     0.0000     0.0000</span>
    2702 <span class="go">G03  79    45.0228     0.0000     0.0000</span>
    2703 <span class="go">...</span>
    2704 <span class="go">G32  82    -1.5324     0.0000     0.0000</span>
    2705 <span class="go">R01  59     4.2194     0.0000     0.0000</span>
    2706 <span class="go">R02  59     2.0535     0.0000     0.0000</span>
    2707 <span class="go">R03  59     1.8130     0.0000     0.0000</span>
    2708 <span class="go">...</span>
    2709 <span class="go">R24  59     2.7409     0.0000     0.0000</span>
    2710 </pre></div>
    2711 </div>
    2712 <p>Records in this block provide the following satellite specific information:</p>
    2713 <ul class="simple">
     2316</p>
     2317
     2318<p>
     2319<b>Example for block 'CLOCK' carrying clock corrections</b>
     2320</p>
     2321
     2322<p>
     2323<pre>
     2324> CLOCK 2015 06 17 11 43 35.0 2 53 CLK93
     2325G01   9     0.5412     0.0000     0.0000
     2326G02  25    11.1811     0.0000     0.0000
     2327G03  79    45.0228     0.0000     0.0000
     2328...
     2329G32  82    -1.5324     0.0000     0.0000
     2330R01  59     4.2194     0.0000     0.0000
     2331R02  59     2.0535     0.0000     0.0000
     2332R03  59     1.8130     0.0000     0.0000
     2333...
     2334R24  59     2.7409     0.0000     0.0000
     2335</pre>
     2336<p>
     2337Records in this block provide the following satellite specific information:
     2338<ul>
    27142339<li>GNSS Indicator and Satellite Vehicle Pseudo Random Number</li>
    27152340<li>IOD referring to Broadcast Ephemeris set</li>
    … …  
    27182343<li>C2 polynomial coefficient for Clock Correction to Broadcast Ephemeris [m/s**2]</li>
    27192344</ul>
    2720 </div>
    2721 <div class="section" id="example-for-block-code-bias-carrying-code-biases">
    2722 <h5>Example for block &#8216;CODE_BIAS&#8217; carrying code biases<a class="headerlink" href="#example-for-block-code-bias-carrying-code-biases" title="Permalink to this headline">¶</a></h5>
    2723 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> CODE_BIAS <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2724 <span class="go">G01    5   1C    -3.3100   1W    -3.7500   2W    -6.1900   2X    -5.7800   5I    -5.4200</span>
    2725 <span class="go">G02    5   1C     3.6000   1W     3.9300   2W     6.4800   2X     0.0000   5I     0.0000</span>
    2726 <span class="go">G03    5   1C    -2.1600   1W    -2.6500   2W    -4.3600   2X    -4.4800   5I    -5.3400</span>
    2727 <span class="go">...</span>
    2728 <span class="go">G32    5   1C    -1.5800   1W    -1.1000   2W    -1.8200   2X     0.0000   5I     0.0000</span>
    2729 <span class="go">R01    4   1C    -2.4900   1P    -2.4900   2C    -3.1500   2P    -4.1200</span>
    2730 <span class="go">R02    4   1C     0.3900   1P     0.2100   2C     0.4000   2P     0.3400</span>
    2731 <span class="go">R03    4   1C     2.4800   1P     2.2800   2C     3.7800   2P     3.7700</span>
    2732 <span class="go">...</span>
    2733 <span class="go">R24    4   1C     2.7000   1P     2.7800   2C     3.9800   2P     4.6000</span>
    2734 </pre></div>
    2735 </div>
    2736 <p>Records in this block provide the following satellite specific information:</p>
    2737 <ul class="simple">
     2345</p>
     2346
     2347<p>
     2348<b>Example for block 'CODE_BIAS' carrying code biases</b>
     2349</p>
     2350<pre>
     2351> CODE_BIAS 2015 06 17 11 43 35.0 2 53 CLK93
     2352G01    5   1C    -3.3100   1W    -3.7500   2W    -6.1900   2X    -5.7800   5I    -5.4200
     2353G02    5   1C     3.6000   1W     3.9300   2W     6.4800   2X     0.0000   5I     0.0000
     2354G03    5   1C    -2.1600   1W    -2.6500   2W    -4.3600   2X    -4.4800   5I    -5.3400
     2355...
     2356G32    5   1C    -1.5800   1W    -1.1000   2W    -1.8200   2X     0.0000   5I     0.0000
     2357R01    4   1C    -2.4900   1P    -2.4900   2C    -3.1500   2P    -4.1200
     2358R02    4   1C     0.3900   1P     0.2100   2C     0.4000   2P     0.3400
     2359R03    4   1C     2.4800   1P     2.2800   2C     3.7800   2P     3.7700
     2360...
     2361R24    4   1C     2.7000   1P     2.7800   2C     3.9800   2P     4.6000
     2362</pre>
     2363<p>
     2364Records in this block provide the following satellite specific information:
     2365<ul>
    27382366<li>GNSS Indicator and Satellite Vehicle Pseudo Random Number</li>
    2739 <li>Number of Code Biases, succeeded by code specific information:<ul>
     2367<li>Number of Code Biases, succeeded by code specific information:</li>
     2368<ul>
    27402369<li>Indicator to specify the signal and tracking mode</li>
    27412370<li>Code Bias [m]</li>
    … …  
    27442373<li>etc.</li>
    27452374</ul>
     2375</ul>
     2376</p>
     2377
     2378<p>
     2379<b>Example for block 'PHASE_BIAS' carrying phase biases</b>
     2380</p>
     2381<pre>
     2382> PHASE_BIAS 2015 06 17 11 43 35.0 2 31 CLK93
     2383 0   1
     2384G01 245.39062500   0.00000000    3   1C     3.9518   1   2   6   2W     6.3177   1   2   6   5I     6.8059   1   2   6
     2385G02 250.31250000   0.00000000    3   1C    -4.0900   1   2   5   2W    -6.7044   1   2   5   5I     0.0000   1   2   5
     2386G03 281.95312500   0.00000000    3   1C     2.9327   1   2   4   2W     4.6382   1   2   4   5I     5.4120   1   2   4
     2387...
     2388G32 290.39062500   0.00000000    3   1C     1.2520   1   2   5   2W     2.0554   1   2   5   5I     0.0000   1   2   5
     2389</pre>
     2390<p>
     2391The second record in this block provides the following consistency information:
     2392<ul>
     2393
     2394<li>Dispersive bias consistency indicatory<br>
     23950 &minus; phase biases valid for non-dispersive signal only<br>
     23961 &minus; phase biases maintain consistency between non-dispersive and all original dispersive phase signals
    27462397</li>
    2747 </ul>
    2748 </div>
    2749 <div class="section" id="example-for-block-phase-bias-carrying-phase-biases">
    2750 <h5>Example for block &#8216;PHASE_BIAS&#8217; carrying phase biases<a class="headerlink" href="#example-for-block-phase-bias-carrying-phase-biases" title="Permalink to this headline">¶</a></h5>
    2751 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> PHASE_BIAS <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">2</span> <span class="m">31</span> CLK93
    2752 <span class="go"> 0   1</span>
    2753 <span class="go">G01 245.39062500   0.00000000    3   1C     3.9518   1   2   6   2W     6.3177   1   2   6   5I     6.8059   1   2   6</span>
    2754 <span class="go">G02 250.31250000   0.00000000    3   1C    -4.0900   1   2   5   2W    -6.7044   1   2   5   5I     0.0000   1   2   5</span>
    2755 <span class="go">G03 281.95312500   0.00000000    3   1C     2.9327   1   2   4   2W     4.6382   1   2   4   5I     5.4120   1   2   4</span>
    2756 <span class="go">...</span>
    2757 <span class="go">G32 290.39062500   0.00000000    3   1C     1.2520   1   2   5   2W     2.0554   1   2   5   5I     0.0000   1   2   5</span>
    2758 </pre></div>
    2759 </div>
    2760 <p>The second record in this block provides the following consistency information:</p>
    2761 <ul class="simple">
    2762 <li>Dispersive bias consistency indicatory</li>
    2763 </ul>
    2764 <blockquote>
    2765 <div><p>0 − phase biases valid for non-dispersive signal only</p>
    2766 <p>1 − phase biases maintain consistency between non-dispersive and all original dispersive phase signals</p>
    2767 </div></blockquote>
    2768 <ul class="simple">
    2769 <li>MW consistency indicator</li>
    2770 </ul>
    2771 <blockquote>
    2772 <div><p>0 − code and phase biases are independently derived</p>
    2773 <p>1 − consistency between code and phase biases is maintained for the MW combinations</p>
    2774 </div></blockquote>
    2775 <p>Following records provide satellite specific information:</p>
    2776 <ul class="simple">
     2398
     2399<li>MW consistency indicator<br>
     24000 &minus; code and phase biases are independently derived<br>
     24011 &minus; consistency between code and phase biases is maintained for the MW combinations
     2402</li>
     2403
     2404</ul>
     2405Following records provide satellite specific information:
     2406<ul>
    27772407<li>GNSS Indicator and Satellite Vehicle Pseudo Random Number</li>
    2778 <li>Yaw angle [<span class="math">\(^{\circ}\)</span>], restricted to [<span class="math">\(0^{\circ}...360^{\circ}\)</span>]</li>
    2779 <li>Yaw rate [<span class="math">\(^{\circ}/s\)</span>]</li>
    2780 <li>Number of phase biases in this record, succeeded by phase specific information:<ul>
     2408<li>Yaw angle [&deg;], restricted to [0&deg... 360&deg]</li>
     2409<li>Yaw rate [&deg;/s]</li>
     2410<li>Number of phase biases in this record, succeeded by phase specific information:</li>
     2411<ul>
    27812412<li>Signal and tracking mode indicator</li>
    27822413<li>Phase bias [m]</li>
    … …  
    27852416<li>Signal discontinuity counter</li>
    27862417</ul>
    2787 </li>
    2788 </ul>
    2789 </div>
    2790 <div class="section" id="example-for-block-vtec-carrying-ionospheric-corrections">
    2791 <h5>Example for block &#8216;VTEC&#8217; carrying ionospheric corrections<a class="headerlink" href="#example-for-block-vtec-carrying-ionospheric-corrections" title="Permalink to this headline">¶</a></h5>
    2792 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> VTEC <span class="m">2015</span> <span class="m">06</span> <span class="m">17</span> <span class="m">11</span> <span class="m">43</span> 35.0 <span class="m">6</span> <span class="m">1</span> CLK93
    2793 <span class="go"> 1  6  6   450000.0</span>
    2794 <span class="go">   17.6800     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2795 <span class="go">    4.5200     8.8700     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2796 <span class="go">   -4.6850    -0.3050     1.1700     0.0000     0.0000     0.0000     0.0000</span>
    2797 <span class="go">   -2.2250    -1.3900    -1.0250    -0.1300     0.0000     0.0000     0.0000</span>
    2798 <span class="go">    0.8750    -0.3800     0.2700    -0.1300     0.0400     0.0000     0.0000</span>
    2799 <span class="go">    1.2150     0.9050    -1.0100     0.3700    -0.1450    -0.2450     0.0000</span>
    2800 <span class="go">   -0.8200     0.4850     0.2300    -0.1750     0.3400    -0.0900    -0.0400</span>
    2801 <span class="go">    0.0000     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2802 <span class="go">    0.0000    -0.0700     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2803 <span class="go">    0.0000     0.5800    -1.4150     0.0000     0.0000     0.0000     0.0000</span>
    2804 <span class="go">    0.0000    -0.6200    -0.1500     0.2600     0.0000     0.0000     0.0000</span>
    2805 <span class="go">    0.0000     0.0700    -0.0900    -0.0550     0.1700     0.0000     0.0000</span>
    2806 <span class="go">    0.0000     0.5000     0.3050    -0.5700    -0.5250    -0.2750     0.0000</span>
    2807 <span class="go">    0.0000     0.0850    -0.4700     0.0600     0.0700     0.1600     0.0400</span>
    2808 </pre></div>
    2809 </div>
    2810 <p>The second record in this block provides four parameters:</p>
    2811 <ul class="simple">
     2418</ul>
     2419</p>
     2420
     2421<p>
     2422<b>Example for block 'VTEC' carrying ionospheric corrections</b>
     2423</p>
     2424<pre>
     2425> VTEC 2015 06 17 11 43 35.0 6 1 CLK93
     2426 1  6  6   450000.0
     2427   17.6800     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000
     2428    4.5200     8.8700     0.0000     0.0000     0.0000     0.0000     0.0000
     2429   -4.6850    -0.3050     1.1700     0.0000     0.0000     0.0000     0.0000
     2430   -2.2250    -1.3900    -1.0250    -0.1300     0.0000     0.0000     0.0000
     2431    0.8750    -0.3800     0.2700    -0.1300     0.0400     0.0000     0.0000
     2432    1.2150     0.9050    -1.0100     0.3700    -0.1450    -0.2450     0.0000
     2433   -0.8200     0.4850     0.2300    -0.1750     0.3400    -0.0900    -0.0400
     2434    0.0000     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000
     2435    0.0000    -0.0700     0.0000     0.0000     0.0000     0.0000     0.0000
     2436    0.0000     0.5800    -1.4150     0.0000     0.0000     0.0000     0.0000
     2437    0.0000    -0.6200    -0.1500     0.2600     0.0000     0.0000     0.0000
     2438    0.0000     0.0700    -0.0900    -0.0550     0.1700     0.0000     0.0000
     2439    0.0000     0.5000     0.3050    -0.5700    -0.5250    -0.2750     0.0000
     2440    0.0000     0.0850    -0.4700     0.0600     0.0700     0.1600     0.0400
     2441</pre>
     2442<p>
     2443The second record in this block provides four parameters:
     2444<ul>
    28122445<li>Layer number</li>
    28132446<li>Maximum degree of spherical harmonics</li>
    … …  
    28152448<li>Height of ionospheric layer [m]</li>
    28162449</ul>
    2817 <p>Subsequent records in this block provide the following information:</p>
    2818 <ul class="simple">
     2450Subsequent records in this block provide the following information:
     2451<ul>
    28192452<li>Spherical harmonic coefficients C and S, sorted by degree and order (0 to maximum)</li>
    28202453</ul>
    2821 </div>
    2822 </div>
    2823 <div class="section" id="directory-ascii-optional">
    2824 <h4>Directory, ASCII - optional<a class="headerlink" href="#directory-ascii-optional" title="Permalink to this headline">¶</a></h4>
    2825 <p>Specify a directory for saving Broadcast Corrections in files. If the specified directory does not exist, BNC will not create Broadcast Correction files. Default value for Broadcast Correction &#8216;Directory&#8217; is an empty option field, meaning that no Broadcast Correction files will be created.</p>
    2826 </div>
    2827 <div class="section" id="interval-mandatory-if-directory-ascii-is-set">
    2828 <h4>Interval - mandatory if &#8216;Directory, ASCII&#8217; is set<a class="headerlink" href="#interval-mandatory-if-directory-ascii-is-set" title="Permalink to this headline">¶</a></h4>
    2829 <p>Select the length of the Broadcast Correction files. The default value is &#8216;1 day&#8217;.</p>
    2830 </div>
    2831 <div class="section" id="id5">
    2832 <h4>Port - optional<a class="headerlink" href="#id5" title="Permalink to this headline">¶</a></h4>
    2833 <p>BNC can output epoch by epoch synchronized Broadcast Corrections in ASCII format on your local host (IP 127.0.0.1) through an IP &#8216;Port&#8217;. Specify an IP port number to activate this function. The default is an empty option field, meaning that no Broadcast Correction output via IP port is generated.</p>
    2834 <p>The output format is similar to the format used for saving Broadcast Corrections in a file.</p>
    2835 <p>The following is an example output for the stream from mountpoint CLK93:</p>
    2836 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> ORBIT <span class="m">2015</span> <span class="m">06</span> <span class="m">19</span> <span class="m">16</span> <span class="m">41</span> 00.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2837 <span class="go">G01  85     0.5891    -0.5124    -0.0216       -0.0001    -0.0002     0.0000</span>
    2838 <span class="go">G02  25  -150.1820    11.4676    84.5216        0.4130    -0.6932     1.0159</span>
    2839 <span class="go">G03  79    15.1999   141.9932  -156.4244        0.6782    -0.8607    -0.8211</span>
    2840 <span class="go">...</span>
    2841 <span class="go">G32  39     1.8454     0.4888    -0.3876       -0.0001    -0.0001     0.0001</span>
    2842 <span class="go">R01  79    -0.0506     1.9024    -0.0120        0.0004     0.0002    -0.0000</span>
    2843 <span class="go">R02  79     0.1623     0.9012     0.3984        0.0001     0.0001     0.0002</span>
    2844 <span class="go">R03  79     0.3247    -2.6704    -0.0240        0.0005    -0.0002     0.0002</span>
    2845 <span class="go">...</span>
    2846 <span class="go">R24  79     0.7046    -0.5088    -0.0160       -0.0000     0.0000    -0.0002</span>
    2847 <span class="gp">&gt;</span> CLOCK <span class="m">2015</span> <span class="m">06</span> <span class="m">19</span> <span class="m">16</span> <span class="m">41</span> 00.0 <span class="m">2</span> <span class="m">53</span> CLK93
    2848 <span class="go">G01  85  -116.9441     0.0000     0.0000</span>
    2849 <span class="go">G02  25  -110.4472     0.0000     0.0000</span>
    2850 <span class="go">G03  79   -96.8299     0.0000     0.0000</span>
    2851 <span class="go">...</span>
    2852 <span class="go">G32  39  -119.2757     0.0000     0.0000</span>
    2853 <span class="go">R01  79     1.5703     0.0000     0.0000</span>
    2854 <span class="go">R02  79    -1.4181     0.0000     0.0000</span>
    2855 <span class="go">R03  79     0.2072     0.0000     0.0000</span>
    2856 <span class="go">...</span>
    2857 <span class="go">R24  79     1.1292     0.0000     0.0000</span>
    2858 <span class="gp">&gt;</span> CODE_BIAS <span class="m">2015</span> <span class="m">06</span> <span class="m">19</span> <span class="m">16</span> <span class="m">41</span> 00.0 <span class="m">0</span> <span class="m">56</span> CLK93
    2859 <span class="go">E11    3   1B     1.3800   5Q     2.4800   7Q     2.5000</span>
    2860 <span class="go">E12    3   1B     0.3900   5Q     0.6900   7Q     0.5300</span>
    2861 <span class="go">E19    3   1B    -1.7800   5Q    -3.1900   7Q    -3.0700</span>
    2862 <span class="go">G01    5   1C    -3.3100   1W    -3.7500   2W    -6.1900   2X    -5.7800   5I    -5.4200</span>
    2863 <span class="go">G02    5   1C     3.6000   1W     3.9300   2W     6.4800   2X     0.0000   5I     0.0000</span>
    2864 <span class="go">G03    5   1C    -2.1600   1W    -2.6500   2W    -4.3600   2X    -4.4800   5I    -5.3400</span>
    2865 <span class="go">...</span>
    2866 <span class="go">G32    5   1C    -1.5800   1W    -1.1000   2W    -1.8200   2X     0.0000   5I     0.0000</span>
    2867 <span class="go">R01    4   1C    -2.4900   1P    -2.4900   2C    -3.1500   2P    -4.1200</span>
    2868 <span class="go">R02    4   1C     0.3900   1P     0.2100   2C     0.4000   2P     0.3400</span>
    2869 <span class="go">R03    4   1C     2.4800   1P     2.2800   2C     3.7800   2P     3.7700</span>
    2870 <span class="go">...</span>
    2871 <span class="go">R24    4   1C     2.7000   1P     2.7800   2C     3.9800   2P     4.6000</span>
    2872 <span class="gp">&gt;</span> PHASE_BIAS <span class="m">2015</span> <span class="m">06</span> <span class="m">19</span> <span class="m">16</span> <span class="m">41</span> 00.0 <span class="m">2</span> <span class="m">31</span> CLK93
    2873 <span class="go"> 0   1</span>
    2874 <span class="go">G01 309.37500000   0.00000000    3   1C     3.9922   1   2   6   2W     6.3568   1   2   6   5I     6.8726   1   2   6</span>
    2875 <span class="go">G02 263.67187500   0.00000000    3   1C    -4.0317   1   2   7   2W    -6.6295   1   2   7   5I     0.0000   1   2   7</span>
    2876 <span class="go">G03 267.89062500   0.00000000    3   1C     3.1267   1   2   4   2W     4.9126   1   2   4   5I     5.6478   1   2   4</span>
    2877 <span class="go">...</span>
    2878 <span class="go">G32 255.93750000   0.00000000    3   1C     1.3194   1   2   5   2W     2.1448   1   2   5   5I     0.0000   1   2   5</span>
    2879 <span class="gp">&gt;</span> VTEC <span class="m">2015</span> <span class="m">06</span> <span class="m">19</span> <span class="m">16</span> <span class="m">41</span> 00.0 <span class="m">6</span> <span class="m">1</span> CLK93
    2880 <span class="go"> 1  6  6   450000.0</span>
    2881 <span class="go">   16.7450     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2882 <span class="go">    4.9300     8.1600     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2883 <span class="go">   -4.4900     0.2550     1.0950     0.0000     0.0000     0.0000     0.0000</span>
    2884 <span class="go">   -2.2450    -1.9500    -0.7950    -0.4700     0.0000     0.0000     0.0000</span>
    2885 <span class="go">    1.0250    -0.9000    -0.0900     0.1050     0.1450     0.0000     0.0000</span>
    2886 <span class="go">    1.5500     0.9750    -0.8150     0.3600     0.0350    -0.0900     0.0000</span>
    2887 <span class="go">   -0.4050     0.8300     0.0800    -0.0650     0.2200     0.0150    -0.1600</span>
    2888 <span class="go">    0.0000     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2889 <span class="go">    0.0000    -0.1250     0.0000     0.0000     0.0000     0.0000     0.0000</span>
    2890 <span class="go">    0.0000     1.0050    -0.7750     0.0000     0.0000     0.0000     0.0000</span>
    2891 <span class="go">    0.0000    -0.2300     0.7150     0.7550     0.0000     0.0000     0.0000</span>
    2892 <span class="go">    0.0000    -0.4100    -0.1250     0.2400     0.2700     0.0000     0.0000</span>
    2893 <span class="go">    0.0000     0.0850    -0.3400    -0.0500    -0.2200    -0.0750     0.0000</span>
    2894 <span class="go">    0.0000     0.2000    -0.2850    -0.0150    -0.0250     0.0900     0.0650</span>
    2895 </pre></div>
    2896 </div>
    2897 <p>The source code for BNC comes with an example Perl script &#8216;test_tcpip_client.pl&#8217; that allows to read BNC&#8217;s Broadcast Corrections from the IP port for verification.</p>
    2898 <div class="figure" id="id37">
    2899 <span id="fig-17"></span><a class="reference internal image-reference" href="_images/fig_17.png"><img alt="_images/fig_17.png" src="_images/fig_17.png" style="width: 1120.0px; height: 722.0px;" /></a>
    2900 <p class="caption"><span class="caption-number">Fig. 18 </span><span class="caption-text">Example for pulling, saving and output of Broadcast Corrections using BNC</span></p>
    2901 </div>
    2902 </div>
    2903 </div>
    2904 <div class="section" id="feed-engine">
    2905 <span id="index-20"></span><h3>Feed Engine<a class="headerlink" href="#feed-engine" title="Permalink to this headline">¶</a></h3>
    2906 <p>BNC can produce synchronized or unsynchronized observations epoch by epoch from all stations and satellites to feed a real-time GNSS network engine. Observations can be streamed out through an IP port and/or saved in a file. The output is always in the same plain ASCII format and sorted per incoming stream.</p>
    2907 <p>Each epoch in the synchronized output begins with a line containing the GPS Week Number and the seconds within the GPS Week. Following lines begin with the mountpoint string of the stream which provides the observations followed by a satellite number. Specifications for satellite number, code, phase, Doppler and signal strength data follow definitions presented in the RINEX Version 3 documentation. In case of phase observations, a &#8216;Lock Time Indicator&#8217; is added. The end of an epoch is indicated by an empty line.</p>
    2908 <p>A valid &#8216;Lock Time Indicator&#8217; is only presented for observations from RTCM Version 3 streams. The parameter provides a measure of the amount of time that has elapsed during which the receiver has maintained continuous lock on that satellite signal. If a cycle slip occurs during the previous measurement cycle, the lock indicator will be reset to Zero. In case of observations from RTCM Version 2 streams, the &#8216;Lock Time Indicator&#8217; is always set to &#8216;-1&#8217;.</p>
    2909 <p><a class="reference internal" href="#tab-feed-engine"><span class="std std-numref">Table 6</span></a> describes the format of BNC&#8217;s synchronized output of GNSS observations which consists of &#8216;Epoch Records&#8217; and &#8216;Observation Records&#8217;. Each Epoch Record is followed by one or more Observation Records. The Observation Record is repeated for each satellite having been observed in the current epoch. The length of an Observation Record is given by the number of observation types for this satellite.</p>
    2910 <table border="1" class="docutils" id="id38">
    2911 <span id="tab-feed-engine"></span><caption><span class="caption-number">Table 6 </span><span class="caption-text">Contents and format of synchronized output of observations feeding a GNSS engine</span><a class="headerlink" href="#id38" title="Permalink to this table">¶</a></caption>
    2912 <colgroup>
    2913 <col width="42%" />
    2914 <col width="25%" />
    2915 <col width="32%" />
    2916 </colgroup>
    2917 <thead valign="bottom">
    2918 <tr class="row-odd"><th class="head"><strong>Identifier</strong></th>
    2919 <th class="head"><strong>Example</strong></th>
    2920 <th class="head"><strong>Format</strong></th>
    2921 </tr>
    2922 </thead>
    2923 <tbody valign="top">
    2924 <tr class="row-even"><td><em>Epoch Record</em></td>
    2925 <td>&nbsp;</td>
    2926 <td>&nbsp;</td>
    2927 </tr>
    2928 <tr class="row-odd"><td>Record Identifier</td>
    2929 <td>&gt;</td>
    2930 <td>A1</td>
    2931 </tr>
    2932 <tr class="row-even"><td>GPS Week Number</td>
    2933 <td>1850</td>
    2934 <td>1X,I4</td>
    2935 </tr>
    2936 <tr class="row-odd"><td>GPS Seconds of Week</td>
    2937 <td>120556.0000000</td>
    2938 <td>1X,F14.7</td>
    2939 </tr>
    2940 <tr class="row-even"><td><em>Observation Record</em></td>
    2941 <td>&nbsp;</td>
    2942 <td>&nbsp;</td>
    2943 </tr>
    2944 <tr class="row-odd"><td>Mountpoint</td>
    2945 <td>WTZR0</td>
    2946 <td>A</td>
    2947 </tr>
    2948 <tr class="row-even"><td>Satellite Number</td>
    2949 <td>G01</td>
    2950 <td>1X,A3</td>
    2951 </tr>
    2952 <tr class="row-odd"><td><em>Pseudo-Range Data</em></td>
    2953 <td>&nbsp;</td>
    2954 <td>&nbsp;</td>
    2955 </tr>
    2956 <tr class="row-even"><td>Observation Code</td>
    2957 <td>C1C</td>
    2958 <td>1X,A3</td>
    2959 </tr>
    2960 <tr class="row-odd"><td>Pseudo-Range Observation</td>
    2961 <td>25394034.112</td>
    2962 <td>1X,F14.3</td>
    2963 </tr>
    2964 <tr class="row-even"><td><em>Carrier Phase Data</em></td>
    2965 <td>&nbsp;</td>
    2966 <td>&nbsp;</td>
    2967 </tr>
    2968 <tr class="row-odd"><td>Observation Code</td>
    2969 <td>L1C</td>
    2970 <td>1X,A3</td>
    2971 </tr>
    2972 <tr class="row-even"><td>Carrier Phase Observation</td>
    2973 <td>133446552.870</td>
    2974 <td>1X,F14.3</td>
    2975 </tr>
    2976 <tr class="row-odd"><td>Lock Time Indicator</td>
    2977 <td>11</td>
    2978 <td>1X,I4</td>
    2979 </tr>
    2980 <tr class="row-even"><td><em>Doppler Data</em></td>
    2981 <td>&nbsp;</td>
    2982 <td>&nbsp;</td>
    2983 </tr>
    2984 <tr class="row-odd"><td>Observation Code</td>
    2985 <td>D1C</td>
    2986 <td>1X,A3</td>
    2987 </tr>
    2988 <tr class="row-even"><td>Doppler Observation</td>
    2989 <td>-87.977</td>
    2990 <td>1X,F14.3</td>
    2991 </tr>
    2992 <tr class="row-odd"><td><em>Signal Strength</em></td>
    2993 <td>&nbsp;</td>
    2994 <td>&nbsp;</td>
    2995 </tr>
    2996 <tr class="row-even"><td>Observation Code</td>
    2997 <td>S2W</td>
    2998 <td>1X,A3</td>
    2999 </tr>
    3000 <tr class="row-odd"><td>Observed Signal Strength</td>
    3001 <td>34.750</td>
    3002 <td>1X,F8.3</td>
    3003 </tr>
    3004 </tbody>
     2454</p>
     2455
     2456<p><h4>2.8.1 <a name="corrdir">Directory, ASCII - optional</h4></p>
     2457<p>
     2458Specify a directory for saving Broadcast Corrections in files. If the specified directory does not exist, BNC will not create Broadcast Correction files. Default value for Broadcast Correction 'Directory' is an empty option field, meaning that no Broadcast Correction files will be created.
     2459</p>
     2460
     2461<p><h4>2.8.2 <a name="corrint">Interval - mandatory if 'Directory, ASCII' is set</h4></p>
     2462<p>
     2463Select the length of the Broadcast Correction files. The default value is '1 day'.
     2464</p>
     2465
     2466<p><h4>2.8.3 <a name="corrport">Port - optional</h4></p>
     2467<p>
     2468BNC can output epoch by epoch synchronized Broadcast Corrections in ASCII format on your local host (IP 127.0.0.1) through an IP 'Port'. Specify an IP port number to activate this function. The default is an empty option field, meaning that no Broadcast Correction output via IP port is generated.
     2469</p>
     2470<p>
     2471The output format is similar to the format used for saving Broadcast Corrections in a file.
     2472</p>
     2473<p>
     2474The following is an example output for the stream from mountpoint CLK93:
     2475<pre>
     2476> ORBIT 2015 06 19 16 41 00.0 2 53 CLK93
     2477G01  85     0.5891    -0.5124    -0.0216       -0.0001    -0.0002     0.0000
     2478G02  25  -150.1820    11.4676    84.5216        0.4130    -0.6932     1.0159
     2479G03  79    15.1999   141.9932  -156.4244        0.6782    -0.8607    -0.8211
     2480...
     2481G32  39     1.8454     0.4888    -0.3876       -0.0001    -0.0001     0.0001
     2482R01  79    -0.0506     1.9024    -0.0120        0.0004     0.0002    -0.0000
     2483R02  79     0.1623     0.9012     0.3984        0.0001     0.0001     0.0002
     2484R03  79     0.3247    -2.6704    -0.0240        0.0005    -0.0002     0.0002
     2485...
     2486R24  79     0.7046    -0.5088    -0.0160       -0.0000     0.0000    -0.0002
     2487> CLOCK 2015 06 19 16 41 00.0 2 53 CLK93
     2488G01  85  -116.9441     0.0000     0.0000
     2489G02  25  -110.4472     0.0000     0.0000
     2490G03  79   -96.8299     0.0000     0.0000
     2491...
     2492G32  39  -119.2757     0.0000     0.0000
     2493R01  79     1.5703     0.0000     0.0000
     2494R02  79    -1.4181     0.0000     0.0000
     2495R03  79     0.2072     0.0000     0.0000
     2496...
     2497R24  79     1.1292     0.0000     0.0000
     2498> CODE_BIAS 2015 06 19 16 41 00.0 0 56 CLK93
     2499E11    3   1B     1.3800   5Q     2.4800   7Q     2.5000
     2500E12    3   1B     0.3900   5Q     0.6900   7Q     0.5300
     2501E19    3   1B    -1.7800   5Q    -3.1900   7Q    -3.0700
     2502G01    5   1C    -3.3100   1W    -3.7500   2W    -6.1900   2X    -5.7800   5I    -5.4200
     2503G02    5   1C     3.6000   1W     3.9300   2W     6.4800   2X     0.0000   5I     0.0000
     2504G03    5   1C    -2.1600   1W    -2.6500   2W    -4.3600   2X    -4.4800   5I    -5.3400
     2505...
     2506G32    5   1C    -1.5800   1W    -1.1000   2W    -1.8200   2X     0.0000   5I     0.0000
     2507R01    4   1C    -2.4900   1P    -2.4900   2C    -3.1500   2P    -4.1200
     2508R02    4   1C     0.3900   1P     0.2100   2C     0.4000   2P     0.3400
     2509R03    4   1C     2.4800   1P     2.2800   2C     3.7800   2P     3.7700
     2510...
     2511R24    4   1C     2.7000   1P     2.7800   2C     3.9800   2P     4.6000
     2512> PHASE_BIAS 2015 06 19 16 41 00.0 2 31 CLK93
     2513 0   1
     2514G01 309.37500000   0.00000000    3   1C     3.9922   1   2   6   2W     6.3568   1   2   6   5I     6.8726   1   2   6
     2515G02 263.67187500   0.00000000    3   1C    -4.0317   1   2   7   2W    -6.6295   1   2   7   5I     0.0000   1   2   7
     2516G03 267.89062500   0.00000000    3   1C     3.1267   1   2   4   2W     4.9126   1   2   4   5I     5.6478   1   2   4
     2517...
     2518G32 255.93750000   0.00000000    3   1C     1.3194   1   2   5   2W     2.1448   1   2   5   5I     0.0000   1   2   5
     2519> VTEC 2015 06 19 16 41 00.0 6 1 CLK93
     2520 1  6  6   450000.0
     2521   16.7450     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000
     2522    4.9300     8.1600     0.0000     0.0000     0.0000     0.0000     0.0000
     2523   -4.4900     0.2550     1.0950     0.0000     0.0000     0.0000     0.0000
     2524   -2.2450    -1.9500    -0.7950    -0.4700     0.0000     0.0000     0.0000
     2525    1.0250    -0.9000    -0.0900     0.1050     0.1450     0.0000     0.0000
     2526    1.5500     0.9750    -0.8150     0.3600     0.0350    -0.0900     0.0000
     2527   -0.4050     0.8300     0.0800    -0.0650     0.2200     0.0150    -0.1600
     2528    0.0000     0.0000     0.0000     0.0000     0.0000     0.0000     0.0000
     2529    0.0000    -0.1250     0.0000     0.0000     0.0000     0.0000     0.0000
     2530    0.0000     1.0050    -0.7750     0.0000     0.0000     0.0000     0.0000
     2531    0.0000    -0.2300     0.7150     0.7550     0.0000     0.0000     0.0000
     2532    0.0000    -0.4100    -0.1250     0.2400     0.2700     0.0000     0.0000
     2533    0.0000     0.0850    -0.3400    -0.0500    -0.2200    -0.0750     0.0000
     2534    0.0000     0.2000    -0.2850    -0.0150    -0.0250     0.0900     0.0650
     2535</pre>
     2536</p>
     2537<p>
     2538The source code for BNC comes with an example Perl script 'test_tcpip_client.pl' that allows to read BNC's Broadcast Corrections from the IP port for verification.
     2539</p>
     2540
     2541<p><img src="IMG/screenshot37.png"/></p>
     2542<p><u>Figure 17:</u> Example for pulling, saving and output of Broadcast Corrections using BNC</p>
     2543
     2544<p><h4>2.9 <a name="syncout">Feed Engine</h4></p>
     2545
     2546<p>
     2547BNC can produce synchronized or unsynchronized observations epoch by epoch from all stations and satellites to feed a real-time GNSS network engine. Observations can be streamed out through an IP port and/or saved in a local file. The output is always in the same plain ASCII format and sorted per incoming stream.
     2548</p>
     2549
     2550<p>
     2551Each epoch in the synchronized output begins with a line containing the GPS Week Number and the seconds within the GPS Week. Following lines begin with the mountpoint string of the stream which provides the observations followed by a satellite number. Specifications for satellite number, code, phase, Doppler and signal strength data follow definitions presented in the RINEX Version 3 documentation. In case of phase observations, a 'Lock Time Indicator' is added. The end of an epoch is indicated by an empty line.
     2552</p>
     2553
     2554<p>
     2555A valid 'Lock Time Indicator' is only presented for observations from RTCM Version 3 streams. The parameter provides a measure of the amount of time that has elapsed during which the receiver has maintained continuous lock on that satellite signal. If a cycle slip occurs during the previous measurement cycle, the lock indicator will be reset to Zero. In case of observations from RTCM Version 2 streams, the 'Lock Time Indicator' is always set to '-1'.
     2556</p>
     2557
     2558<p>
     2559The following table describes the format of BNC's synchronized output of GNSS observations which consists of 'Epoch Records' and 'Observation Records'. Each Epoch Record is followed by one or more Observation Records. The Observation Record is repeated for each satellite having been observed in the current epoch. The length of an Observation Record is given by the number of observation types for this satellite.
     2560</p>
     2561
     2562<p><u>Table 2:</u> Contents and format of synchronized output of observations feeding a GNSS engine</p>
     2563<p>
     2564<table>
     2565<tr><td></td><td><b>Example</b></td><td><b>Format</b></td></tr>
     2566
     2567<tr><td><b>Epoch Record</b></td><td></td><td></td></tr>
     2568<tr><td>Record Identifier</td><td>></td><td>A1</td></tr>
     2569<tr><td>GPS Week Number</td><td>1850</td><td>1X,I4</td></tr>
     2570<tr><td>GPS Seconds of Week</td><td>120556.0000000 &nbsp; &nbsp;</td><td>1X,F14.7</td></tr>
     2571
     2572<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
     2573<tr><td><b>Observation Record</b></td><td></td><td></td></tr>
     2574<tr><td>Mountpoint</td><td>WTZR0</td><td>A</td></tr>
     2575<tr><td>Satellite Number</td><td>G01</td><td>1X,A3</td></tr>
     2576
     2577<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
     2578
     2579<tr><td><u>Pseudo-Range Data</u></td><td></td><td></td></tr>
     2580<tr><td>Observation Code</td><td><b>C</b>1C</td><td>1X,A3</td></tr>
     2581<tr><td>Pseudo-Range Observation</td><td>25394034.112</td><td>1X,F14.3</td></tr>
     2582
     2583<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
     2584
     2585<tr><td><u>Carrier Phase Data</u></td><td></td><td></td></tr>
     2586<tr><td>Observation Code</td><td><b>L</b>1C</td><td>1X,A3</td></tr>
     2587<tr><td>Carrier Phase Observation</td><td>133446552.870</td><td>1X,F14.3</td></tr>
     2588<tr><td>Lock Time Indicator</td><td>11</td><td>1X,I4</td></tr>
     2589
     2590<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
     2591
     2592<tr><td><u>Doppler Data</u></td><td></td><td></td></tr>
     2593<tr><td>Observation Code</td><td><b>D</b>1C</td><td>1X,A3</td></tr>
     2594<tr><td>Doppler Observation</td><td>-87.977</td><td>1X,F14.3</td></tr>
     2595
     2596<tr><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
     2597
     2598<tr><td><u>Signal Strength</u></td><td></td><td></td></tr>
     2599<tr><td>Observation Code</td><td><b>S</b>2W</td><td>1X,A3</td></tr>
     2600<tr><td>Observed Signal Strength &nbsp; &nbsp;</td><td>34.750</td><td>1X,F8.3</td></tr>
     2601
    30052602</table>
    3006 <p>The following is an example for synchronized file and IP port output, which presents observations from GPS, GLONASS, Galileo, BDS (BeiDou), QZSS, and SBAS satellites as collected through streams FFMJ1, WTZR0 and CUT07:</p>
    3007 <div class="highlight-console"><div class="highlight"><pre><span class="gp">&gt;</span> <span class="m">1884</span> 206010.0000000
    3008 <span class="go">FFMJ1 G02 C1C   23286796.846 L1C  122372909.535  127 S1C   49.000 C2W   23286793.846 L2W   95355531.583  127 S2W   36.000</span>
    3009 <span class="go">...</span>
    3010 <span class="go">FFMJ1 G26 C1C   24796690.856 L1C  130307533.550  127 S1C   42.000 C2W   24796697.776 L2W  101538315.510  127 S2W   25.000</span>
    3011 <span class="go">FFMJ1 S20 C1C   38682850.302 L1C  203279786.777  127 S1C   42.000</span>
    3012 <span class="go">FFMJ1 S36 C1C   38288096.846 L1C  201205293.221  127 S1C   47.000</span>
    3013 <span class="go">FFMJ1 R03 C1C   23182737.548 L1C  124098947.838  127 S1C   48.000 C2P   23182746.288 L2P   96521352.130  127 S2P   42.000</span>
    3014 <span class="go">...</span>
    3015 <span class="go">FFMJ1 R21 C1C   22201343.772 L1C  118803851.388  127 S1C   52.000 C2P   22201348.892 L2P   92402993.884  127 S2P   44.000</span>
    3016 <span class="go">CUT07 G01 C1C   25318977.766 L1C  133052476.488  521 D1C       2533.500 S1C   33.688 C2W   25318993.668 L2W  103677584.878  521 S2W   15.625 C2X   25318991.820 L2X  103676566.850  521 S2X   35.375 C5X   25318993.461 L5X   99357161.238  521 S5X   39.812</span>
    3017 <span class="go">...</span>
    3018 <span class="go">CUT07 G27 C1C   20251005.351 L1C  106420601.969  627 D1C        250.937 S1C   50.312 C2W   20251014.512 L2W   82924447.644  627 S2W   45.125 C2X   20251014.246 L2X   82924648.644  627 S2X   53.188 C5X   20251015.480 L5X   79469461.619  627 S5X   56.375</span>
    3019 <span class="go">CUT07 R01 C1C   20312587.149 L1C  108583395.373  625 D1C      -2456.703 S1C   52.875 C1P   20312586.192 L1P  108582844.382  625 S1P   51.000 C2C   20312593.422 L2C   84452892.610  625 S2C   43.625 C2P   20312593.836 L2P   84453114.622  625 S2P   42.312</span>
    3020 <span class="go">...</span>
    3021 <span class="go">CUT07 R24 C1C   19732223.242 L1C  105517564.659  630 D1C         -7.477 S1C   47.375 C1P   19732222.609 L1P  105517564.669  630 S1P   46.375 C2C   19732227.660 L2C   82069550.193  630 S2C   38.125 C2P   19732227.316 L2P   82068477.204  630 S2P   37.375</span>
    3022 <span class="go">CUT07 E11 C1X   28843071.547 L1X  151571208.816  405 D1X      -2221.055 S1X   29.000 C7X   28843082.531 L7X  116138795.418  405 S7X   27.188 C8X   28843085.699 L8X  114662585.261  405 S8X   33.688 C5X   28843086.281 L5X  113186518.907  405 S5X   30.375</span>
    3023 <span class="go">...</span>
    3024 <span class="go">CUT07 E30 C1X   28096037.289 L1X  147645296.835  630 D1X      -2020.613 S1X   34.688 C7X   28096054.070 L7X  113131111.635  630 S7X   36.875 C8X   28096055.684 L8X  111692702.565  630 S8X   40.375 C5X   28096058.008 L5X  110254591.278  630 S5X   36.188</span>
    3025 <span class="go">CUT07 S27 C1C   40038220.843 L1C  210402303.982  616 D1C        104.688 S1C   36.125 C5I   40038226.375 L5I  157118241.003  616 S5I   40.875</span>
    3026 <span class="go">...</span>
    3027 <span class="go">CUT07 S37 C1C   37791754.594 L1C  198596881.251  704 D1C        106.605 S1C   37.875</span>
    3028 <span class="go">CUT07 J01 C1C   33076065.781 L1C  173816471.106  674 D1C        169.765 S1C   48.375 C1Z   33076063.086 L1Z  173815528.437  674 S1Z   48.625 C6L   33076065.652 L6L  141084039.422  674 S6L   52.688 C2X   33076070.523 L2X  135440679.474  674 S2X   50.500 C5X   33076076.496 L5X  129797319.733  674 S5X   54.188 C1X   33076065.492 L1X  173815529.101  674 S1X   52.375</span>
    3029 <span class="go">CUT07 C01 C2I   37725820.914 L2I  196447455.374  704 D2I         90.898 S2I   41.312 C6I   37725810.168 L6I  159630204.932  704 S6I   44.875 C7I   37725815.196 L7I  151906389.245  704 S7I   45.812</span>
    3030 <span class="go">...</span>
    3031 <span class="go">CUT07 C14 C2I   23351041.328 L2I  121594621.501  592 D2I       2422.203 S2I   45.688 C6I   23351032.926 L6I   98805869.415  592 S6I   48.500 C7I   23351041.996 L7I   94024977.673  592 S7I   45.688</span>
    3032 <span class="go">WTZR0 G02 C1C   23641481.864 L1C  124236803.604  127 S1C   47.500 C2W   23641476.604 L2W   96807881.233  127 S2W   39.250</span>
    3033 <span class="go">...</span>
    3034 <span class="go">WTZR0 G26 C1C   24681555.676 L1C  129702453.534  127 S1C   43.750 C2W   24681561.256 L2W  101066873.870  127 S2W   37.750</span>
    3035 <span class="go">WTZR0 R03 C1C   22982596.508 L1C  123027564.682  127 S1C   47.000 C2P   22982598.368 L2P   95688085.627  127 S2P   43.250</span>
    3036 <span class="go">...</span>
    3037 <span class="go">WTZR0 R21 C1C   22510252.692 L1C  120456902.811  127 S1C   47.500 C2P   22510253.132 L2P   93688698.401  127 S2P   44.000</span>
    3038 
    3039 <span class="gp">&gt;</span> <span class="m">1884</span> 206011.0000000
    3040 <span class="go">...</span>
    3041 </pre></div>
    3042 </div>
    3043 <p>The source code for BNC comes with a Perl script named &#8216;test_tcpip_client.pl&#8217; that allows to read BNC&#8217;s (synchronized or unsynchronized) ASCII observation output from the IP port and print it on standard output for verification.</p>
    3044 <p>Note that any socket connection of an application to BNC&#8217;s synchronized or unsynchronized observation ports is recorded in the &#8216;Log&#8217; tab on the bottom of the main window together with a connection counter, resulting in log records like &#8216;New client connection on sync/usync port: # 1&#8217;.</p>
    3045 <p>The following figure shows the screenshot of a BNC configuration where a number of streams is pulled from different Ntrip Broadcasters to feed a GNSS engine via IP port output.</p>
    3046 <div class="figure" id="id39">
    3047 <span id="fig-18"></span><a class="reference internal image-reference" href="_images/fig_18.png"><img alt="_images/fig_18.png" src="_images/fig_18.png" style="width: 1120.0px; height: 749.0px;" /></a>
    3048 <p class="caption"><span class="caption-number">Fig. 19 </span><span class="caption-text">Synchronized BNC output via IP port to feed a GNSS real-time engine</span></p>
    3049 </div>
    3050 <div class="section" id="id6">
    3051 <h4>Port - optional<a class="headerlink" href="#id6" title="Permalink to this headline">¶</a></h4>
    3052 <p>BNC can produce synchronized observations in ASCII format on your local host (IP 127.0.0.1) through an IP &#8216;Port&#8217;. Synchronized means that BNC collects all observation data for a specific epoch, which become available within a certain number of seconds (see &#8216;Wait for Full Obs Epoch&#8217; option). It then - epoch by epoch - outputs whatever has been received. The output comes block-wise per stream following the format specified in <a class="reference internal" href="#tab-feed-engine"><span class="std std-numref">Table 6</span></a>. Enter an IP port number here to activate this function. The default is an empty option field, meaning that no synchronized output is generated.</p>
    3053 </div>
    3054 <div class="section" id="wait-for-full-obs-epoch-mandatory-if-port-is-set">
    3055 <h4>Wait for Full Obs Epoch - mandatory if &#8216;Port&#8217; is set<a class="headerlink" href="#wait-for-full-obs-epoch-mandatory-if-port-is-set" title="Permalink to this headline">¶</a></h4>
    3056 <p>When feeding a real-time GNSS network engine waiting for synchronized observations epoch by epoch, BNC drops whatever is received later than &#8216;Wait for full obs epoch&#8217; seconds. A value of 3 to 5 seconds could be an appropriate choice for that, depending on the latency of the incoming streams and the delay acceptable for your real-time GNSS product. Default value for &#8216;Wait for full obs epoch&#8217; is 5 seconds.</p>
    3057 <p>Note that &#8216;Wait for full obs epoch&#8217; does not affect the RINEX Observation file content. Observations received later than &#8216;Wait for full obs epoch&#8217; seconds will still be included in the RINEX Observation files.</p>
    3058 </div>
    3059 <div class="section" id="sampling-mandatory-if-file-or-port-is-set">
    3060 <h4>Sampling - mandatory if &#8216;File&#8217; or &#8216;Port&#8217; is set<a class="headerlink" href="#sampling-mandatory-if-file-or-port-is-set" title="Permalink to this headline">¶</a></h4>
    3061 <p>Select a synchronized observation output sampling interval in seconds. A value of zero &#8216;0&#8217; tells BNC to send/store all received epochs. This is the default value.</p>
    3062 </div>
    3063 <div class="section" id="file-optional">
    3064 <h4>File - optional<a class="headerlink" href="#file-optional" title="Permalink to this headline">¶</a></h4>
    3065 <p>Specify the full path to a &#8216;File&#8217; where synchronized observations are saved in plain ASCII format. The default value is an empty option field, meaning that no ASCII output file is created.</p>
    3066 <p>Beware that the size of this file can rapidly increase depending on the number of incoming streams. To prevent it from becoming too large, the name of the file can be changed on-the-fly. This option is primarily meant for test and evaluation.</p>
    3067 </div>
    3068 <div class="section" id="port-unsynchronized-optional">
    3069 <h4>Port (unsynchronized) - optional<a class="headerlink" href="#port-unsynchronized-optional" title="Permalink to this headline">¶</a></h4>
    3070 <p>BNC can produce unsynchronized observations from all configured streams in ASCII format on your local host (IP 127.0.0.1) through an IP &#8216;Port&#8217;. Unsynchronized means that BNC immediately forwards any received observation to the port. Nevertheless, the output is produced block-wise per stream. Specify an IP port number here to activate this function. The default is an empty option field, meaning that no unsynchronized output is generated.</p>
    3071 <p>The following is an example for unsynchronized IP port output which presents observations from GPS and GLONASS as collected through stream WTZR0. The format for synchronized and unsynchronized output of observations is very much the same. However, unsynchronized output does not have &#8216;Epoch Records&#8217; and &#8216;Observation Records&#8217;. Instead each record contains the &#8216;GPS Week Number&#8217; and &#8216;GPS Second of Week&#8217; time tag between the mountpoint string and the satellite number, see <a class="reference internal" href="#tab-feed-engine"><span class="std std-numref">Table 6</span></a> for format details.</p>
    3072 <div class="highlight-console"><div class="highlight"><pre><span class="go">WTZR0 1884 209623.0000000 G02 C1C   22259978.112 L1C  116976955.890  127 S1C   49.250 C2W   22259974.472 L2W   91150855.991  127 S2W   44.500</span>
    3073 <span class="go">WTZR0 1884 209623.0000000 G03 C1C   24426736.058 L1C  128363272.624  127 S1C   43.500 C2W   24426741.838 L2W  100023289.335  127 S2W   39.000</span>
    3074 <span class="go">...</span>
    3075 <span class="go">WTZR0 1884 209623.0000000 G29 C1C   25275897.592 L1C  132825869.191   90 S1C   35.250 C2W   25275893.692 L2W  103500567.110    8 S2W   28.500</span>
    3076 <span class="go">WTZR0 1884 209623.0000000 G30 C1C   23670676.284 L1C  124390283.441  127 S1C   46.750 C2W   23670679.784 L2W   96927531.685  127 S2W   39.500</span>
    3077 <span class="go">WTZR0 1884 209623.0000000 R04 C1C   20758122.104 L1C  111158778.398  127 S1C   50.000 C2P   20758121.664 L2P   86456803.800  127 S2P   47.000</span>
    3078 <span class="go">WTZR0 1884 209623.0000000 R05 C1C   19430829.552 L1C  103868912.028  127 S1C   45.750 C2P   19430829.672 L2P   80786936.849  127 S2P   46.750</span>
    3079 <span class="go">...</span>
    3080 </pre></div>
    3081 </div>
    3082 </div>
    3083 </div>
    3084 <div class="section" id="serial-output">
    3085 <span id="index-21"></span><h3>Serial output<a class="headerlink" href="#serial-output" title="Permalink to this headline">¶</a></h3>
    3086 <p>You may use BNC to feed a serially connected device like a GNSS receiver. For that, an incoming stream can be forwarded to a serial port. Depending on the stream content, the receiver may use it for Differential GNSS, Precise Point Positioning or any other purpose supported by its firmware. Note that receiving a VRS stream requires the receiver sending NMEA sentences (option &#8216;NMEA&#8217; set to &#8216;Manual&#8217; or &#8216;Auto&#8217;) to the Ntrip Broadcaster. <a class="reference internal" href="#fig-19"><span class="std std-numref">Fig. 20</span></a> shows the data flow when pulling a VRS stream or a physical (non-VRS) stream.</p>
    3087 <div class="figure" id="id40">
    3088 <span id="fig-19"></span><a class="reference internal image-reference" href="_images/fig_19.png"><img alt="_images/fig_19.png" src="_images/fig_19.png" style="width: 768.0px; height: 577.0px;" /></a>
    3089 <p class="caption"><span class="caption-number">Fig. 20 </span><span class="caption-text">Flowcharts, BNC forwarding a stream to a serially connected receiver; sending NMEA sentences is mandatory for VRS streams</span></p>
    3090 </div>
    3091 <p><a class="reference internal" href="#fig-20"><span class="std std-numref">Fig. 21</span></a> shows the screenshot of an example situation where BNC pulls a VRS stream from an Ntrip Broadcaster to feed a serially connected RTK rover.</p>
    3092 <div class="figure" id="id41">
    3093 <span id="fig-20"></span><a class="reference internal image-reference" href="_images/fig_20.png"><img alt="_images/fig_20.png" src="_images/fig_20.png" style="width: 1000.0px; height: 722.0px;" /></a>
    3094 <p class="caption"><span class="caption-number">Fig. 21 </span><span class="caption-text">BNC pulling a VRS stream to feed a serially connected RTK rover</span></p>
    3095 </div>
    3096 <div class="section" id="mountpoint-optional">
    3097 <h4>Mountpoint - optional<a class="headerlink" href="#mountpoint-optional" title="Permalink to this headline">¶</a></h4>
    3098 <p>Enter a &#8216;Mountpoint&#8217; to forward its corresponding stream to a serially connected GNSS receiver. When selecting one of the serial communication options listed below, make sure that you pick those configured to the serially connected receiver.</p>
    3099 </div>
    3100 <div class="section" id="port-name-mandatory-if-mountpoint-is-set">
    3101 <h4>Port Name - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#port-name-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3102 <p>Enter the serial &#8216;Port name&#8217; selected on your host for communication with the serially connected receiver. Valid port names are summarized in <a class="reference internal" href="#tab-port-names"><span class="std std-numref">Table 7</span></a>.</p>
    3103 <table border="1" class="docutils" id="id42">
    3104 <span id="tab-port-names"></span><caption><span class="caption-number">Table 7 </span><span class="caption-text">Valid port names for serially connected receivers.</span><a class="headerlink" href="#id42" title="Permalink to this table">¶</a></caption>
    3105 <colgroup>
    3106 <col width="41%" />
    3107 <col width="59%" />
    3108 </colgroup>
    3109 <thead valign="bottom">
    3110 <tr class="row-odd"><th class="head"><strong>OS</strong></th>
    3111 <th class="head"><strong>Port Names</strong></th>
    3112 </tr>
    3113 </thead>
    3114 <tbody valign="top">
    3115 <tr class="row-even"><td>Windows</td>
    3116 <td>COM1, COM2</td>
    3117 </tr>
    3118 <tr class="row-odd"><td>Linux</td>
    3119 <td>/dev/ttyS0, /dev/ttyS1</td>
    3120 </tr>
    3121 <tr class="row-even"><td>FreeBSD</td>
    3122 <td>/dev/ttyd0, /dev/ttyd1</td>
    3123 </tr>
    3124 <tr class="row-odd"><td>Digital Unix</td>
    3125 <td>/dev/tty01, /dev/tty02</td>
    3126 </tr>
    3127 <tr class="row-even"><td>HP-UX</td>
    3128 <td>/dev/tty1p0, /dev/tty2p0</td>
    3129 </tr>
    3130 <tr class="row-odd"><td>SGI/IRIX</td>
    3131 <td>/dev/ttyf1, /dev/ttyf2</td>
    3132 </tr>
    3133 <tr class="row-even"><td>SunOS/Solaris</td>
    3134 <td>/dev/ttya, /dev/ttyb</td>
    3135 </tr>
    3136 </tbody>
    3137 </table>
    3138 <p>Note that you must plug a serial cable in the port defined here before you start BNC.</p>
    3139 </div>
    3140 <div class="section" id="baud-rate-mandatory-if-mountpoint-is-set">
    3141 <h4>Baud Rate - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#baud-rate-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3142 <p>Select a &#8216;Baud rate&#8217; for the serial output link. Note that using a high baud rate is recommended.</p>
    3143 </div>
    3144 <div class="section" id="flow-control-mandatory-if-mountpoint-is-set">
    3145 <h4>Flow Control - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#flow-control-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3146 <p>Select a &#8216;Flow control&#8217; for the serial output link. Note that your selection must equal the flow control configured to the serially connected device. Select &#8216;OFF&#8217; if you do not know better.</p>
    3147 </div>
    3148 <div class="section" id="parity-mandatory-if-mountpoint-is-set">
    3149 <h4>Parity - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#parity-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3150 <p>Select the &#8216;Parity&#8217; for the serial output link. Note that parity is often set to &#8216;NONE&#8217;.</p>
    3151 </div>
    3152 <div class="section" id="data-bits-mandatory-if-mountpoint-is-set">
    3153 <h4>Data Bits - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#data-bits-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3154 <p>Select the number of &#8216;Data bits&#8217; for the serial output link. Note that often &#8216;8&#8217; data bits are used.</p>
    3155 </div>
    3156 <div class="section" id="stop-bits-mandatory-if-mountpoint-is-set">
    3157 <h4>Stop Bits - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#stop-bits-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3158 <p>Select the number of &#8216;Stop bits&#8217; for the serial output link. Note that often &#8216;1&#8217; stop bit is used.</p>
    3159 </div>
    3160 <div class="section" id="nmea-mandatory-if-mountpoint-is-set">
    3161 <h4>NMEA - mandatory if &#8216;Mountpoint&#8217; is set<a class="headerlink" href="#nmea-mandatory-if-mountpoint-is-set" title="Permalink to this headline">¶</a></h4>
    3162 <p>The &#8216;NMEA&#8217; option supports the so-called &#8216;Virtual Reference Station&#8217; (VRS) concept which requires the receiver to send approximate position information to the Ntrip Broadcaster. Select &#8216;no&#8217; if you do not want BNC to forward or upload any NMEA sentence to the Ntrip broadcaster in support of VRS.</p>
    3163 <p>Select &#8216;Auto&#8217; to automatically forward NMEA sentences of type GGA from your serially connected receiver to the Ntrip broadcaster and/or save them in a file.</p>
    3164 <p>Select &#8216;Manual GPGGA&#8217; or &#8216;Manual GNGGA&#8217; if you want BNC to produce and upload GPGGA or GNGGA NMEA sentences to the Ntrip broadcaster because your serially connected receiver does not generate them. A Talker ID &#8216;GP&#8217; proceeding the GGA string stands for GPS solutions while a Talker ID &#8216;GN&#8217; stands for multi-constellation solutions.</p>
    3165 <p>Note that selecting &#8216;Auto&#8217; or &#8216;Manual&#8217; works only for VRS streams which show up under the &#8216;Streams&#8217; canvas on BNC&#8217;s main window with &#8216;nmea&#8217; stream attribute set to &#8216;yes&#8217;. This attribute is either extracted from the Ntrip broadcaster&#8217;s source-table or introduced by the user through editing the BNC configuration file.</p>
    3166 </div>
    3167 <div class="section" id="file-optional-if-nmea-is-set-to-auto">
    3168 <h4>File - optional if &#8216;NMEA&#8217; is set to &#8216;Auto&#8217;<a class="headerlink" href="#file-optional-if-nmea-is-set-to-auto" title="Permalink to this headline">¶</a></h4>
    3169 <p>Specify the full path to a file where NMEA sentences coming from your serially connected receiver are saved. Default is an empty option field, meaning that no NMEA sentences will be saved on disk.</p>
    3170 </div>
    3171 <div class="section" id="height-mandatory-if-nmea-is-set-to-manual">
    3172 <h4>Height - mandatory if &#8216;NMEA&#8217; is set to &#8216;Manual&#8217;<a class="headerlink" href="#height-mandatory-if-nmea-is-set-to-manual" title="Permalink to this headline">¶</a></h4>
    3173 <p>Specify an approximate &#8216;Height&#8217; above mean sea level in meters for the reference station introduced through &#8216;Mountpoint&#8217;. Together with the latitude and longitude from the Ntrip broadcaster source-table, the height information is used to build GGA sentences to be sent to the Ntrip broadcaster.</p>
    3174 <p>For adjusting latitude and longitude values of a VRS stream given in the &#8216;Streams&#8217; canvas, you can double click the latitude/longitude data fields, specify appropriate values and then hit Enter.</p>
    3175 <p>This option is only relevant when option &#8216;NMEA&#8217; is set to &#8216;Manual GPGGA&#8217; or &#8216;Manual GNGGA&#8217; respectively.</p>
    3176 </div>
    3177 <div class="section" id="sampling-mandatory-if-nmea-is-set-to-manual">
    3178 <h4>Sampling - mandatory if &#8216;NMEA&#8217; is set to &#8216;Manual&#8217;<a class="headerlink" href="#sampling-mandatory-if-nmea-is-set-to-manual" title="Permalink to this headline">¶</a></h4>
    3179 <p>Select a sampling interval in seconds for manual generation and upload of NMEA GGA sentences.</p>
    3180 <p>A sampling rate of &#8216;0&#8217; means that a GGA sentence will be sent only once to initialize the requested VRS stream. Note that some VRS systems need GGA sentences at regular intervals.</p>
    3181 </div>
    3182 </div>
    3183 <div class="section" id="outages">
    3184 <span id="index-22"></span><h3>Outages<a class="headerlink" href="#outages" title="Permalink to this headline">¶</a></h3>
    3185 <p>At any time an incoming stream might become unavailable or corrupted. In such cases, it is important that the BNC operator and/or the stream providers become aware of the situation so that measures can be taken to restore the stream. Furthermore, continuous attempts to decode a corrupted stream can generate unnecessary workload for BNC. Outages and corruptions are handled by BNC as follows:</p>
    3186 <p>Stream outages: BNC considers a connection to be broken when there are no incoming data detected for more than 20 seconds. When this occurs, BNC will try to reconnect at a decreasing rate. It will first try to reconnect with 1 second delay and again in 2 seconds if the previous attempt failed. If the attempt is still unsuccessful, it will try to reconnect within 4 seconds after the previous attempt and so on. The waiting time doubles each time with a maximum of 256 seconds.</p>
    3187 <p>Stream corruption: Not all chunks of bits transferred to BNC&#8217;s internal decoder may return valid observations. Sometimes several chunks might be needed before the next observation can be properly decoded. BNC buffers all outputs (both valid and invalid) from the decoder for a short time span (size derived from the expected &#8216;Observation rate&#8217;) to then determine whether a stream is valid or corrupted.</p>
    3188 <p>Outage and corruption events are reported in the &#8216;Log&#8217; tab. They can also be passed on as parameters to a shell script or batch file to generate an advisory note to BNC&#8217;s operator or affected stream providers. This functionality lets users utilize BNC as a real-time performance monitor and alarm system for a network of GNSS reference stations, see <a class="reference internal" href="#fig-20b"><span class="std std-numref">Fig. 22</span></a> for an example setup.</p>
    3189 <div class="figure" id="id43">
    3190 <span id="fig-20b"></span><a class="reference internal image-reference" href="_images/fig_20b.png"><img alt="_images/fig_20b.png" src="_images/fig_20b.png" style="width: 889.0px; height: 609.0px;" /></a>
    3191 <p class="caption"><span class="caption-number">Fig. 22 </span><span class="caption-text">Specifying thresholds for stream outage and recovery</span></p>
    3192 </div>
    3193 <div class="section" id="observation-rate-optional">
    3194 <h4>Observation Rate - optional<a class="headerlink" href="#observation-rate-optional" title="Permalink to this headline">¶</a></h4>
    3195 <p>BNC can collect all returns (success or failure) coming from a decoder within a certain short time span to then decide whether a stream has an outage or its content is corrupted. This procedure needs a rough a priori estimate of the expected observation rate of the incoming streams.</p>
    3196 <p>An empty option field (default) means that you do not want explicit information from BNC about stream outages and incoming streams that cannot be decoded.</p>
    3197 </div>
    3198 <div class="section" id="failure-threshold-mandatory-if-observation-rate-is-set">
    3199 <h4>Failure Threshold - mandatory if &#8216;Observation rate&#8217; is set<a class="headerlink" href="#failure-threshold-mandatory-if-observation-rate-is-set" title="Permalink to this headline">¶</a></h4>
    3200 <p>Event &#8216;Begin_Failure&#8217; will be reported if no data is received continuously for longer than the &#8216;Failure threshold&#8217; time. Similarly, event &#8216;Begin_Corrupted&#8217; will be reported when corrupted data is detected by the decoder continuously for longer than this &#8216;Failure threshold&#8217; time. The default value is set to 15 minutes and is recommended as to not inundate users with too many event reports.</p>
    3201 <p>Note that specifying a value of zero &#8216;0&#8217; for the &#8216;Failure threshold&#8217; will force BNC to report any stream failure immediately. Note also that for using this function you need to specify the &#8216;Observation rate&#8217;.</p>
    3202 </div>
    3203 <div class="section" id="recovery-threshold-mandatory-if-observation-rate-is-set">
    3204 <h4>Recovery Threshold - mandatory if &#8216;Observation rate&#8217; is set<a class="headerlink" href="#recovery-threshold-mandatory-if-observation-rate-is-set" title="Permalink to this headline">¶</a></h4>
    3205 <p>Once a &#8216;Begin_Failure&#8217; or &#8216;Begin_Corrupted&#8217; event has been reported, BNC will check when the stream again becomes available or uncorrupted. Event &#8216;End_Failure&#8217; or &#8216;End_Corrupted&#8217; will be reported as soon as valid observations are detected continuously throughout the &#8216;Recovery threshold&#8217; time span. The default value is set to 5 minutes and is recommended as to not inundate users with too many event reports.</p>
    3206 <p>Note that specifying a value of zero &#8216;0&#8217; for the &#8216;Recovery threshold&#8217; will force BNC to report any stream recovery immediately. Note also that for using this function you need to specify the &#8216;Observation rate&#8217;.</p>
    3207 </div>
    3208 <div class="section" id="script-optional-if-observation-rate-is-set">
    3209 <h4>Script - optional if &#8216;Observation rate&#8217; is set<a class="headerlink" href="#script-optional-if-observation-rate-is-set" title="Permalink to this headline">¶</a></h4>
    3210 <p>As mentioned before, BNC can trigger a shell script or a batch file to be executed when one of the described events is reported. This script can be used to email an advisory note to network operator or stream providers. To enable this feature, specify the full path to the script or batch file in the &#8216;Script&#8217; field. The affected stream&#8217;s mountpoint and type of event reported (&#8216;Begin_Outage&#8217;, &#8216;End_Outage&#8217;, &#8216;Begin_Corrupted&#8217; or &#8216;End_Corrupted&#8217;) will then be passed on to the script as command line parameters (%1 and %2 on Windows systems or $1 and $2 on Unix/Linux/Mac OS X systems) together with date and time information.</p>
    3211 <p>Leave the &#8216;Script&#8217; field empty if you do not wish to use this option. An invalid path will also disable this option.</p>
    3212 <p>Examples for command line parameter strings passed on to the advisory &#8216;Script&#8217; are:</p>
    3213 <div class="highlight-console"><div class="highlight"><pre><span class="go">FFMJ0 Begin_Outage 08-02-21 09:25:59</span>
    3214 <span class="go">FFMJ0 End_Outage 08-02-21 11:36:02 Begin was 08-02-21 09:25:59</span>
    3215 </pre></div>
    3216 </div>
    3217 <p>Sample script for Unix/Linux/Mac OS X systems:</p>
    3218 <div class="highlight-none"><div class="highlight"><pre>#!/bin/bash
    3219 sleep $((60*RANDOM/32767))
    3220 cat &gt; mail.txt &lt;&lt;EOF
    3221 Advisory Note to BNC User,
    3222 Please note the following advisory received from BNC.
    3223 Stream: $*
    3224 Regards, BNC
    3225 EOF
    3226 mail -s &quot;NABU: $1&quot; email@address &lt; mail.txt
    3227 </pre></div>
    3228 </div>
    3229 <p>Note the sleep command in this script, which causes the system to wait for a random period of up to 60 seconds before sending the email. This should avoid overloading your mail server in case of a simultaneous failure of many streams.</p>
    3230 </div>
    3231 </div>
    3232 <div class="section" id="miscellaneous">
    3233 <h3>Miscellaneous<a class="headerlink" href="#miscellaneous" title="Permalink to this headline">¶</a></h3>
    3234 <p>This section describes several miscellaneous options which can be applied to a single stream (mountpoint) or to all configured streams. <a class="reference internal" href="#fig-21"><span class="std std-numref">Fig. 23</span></a> shows RTCM message numbers and observation types contained in stream &#8216;CUT07&#8217; and the message latencies recorded every 2 seconds.</p>
    3235 <div class="figure" id="id44">
    3236 <span id="fig-21"></span><a class="reference internal image-reference" href="_images/fig_21.png"><img alt="_images/fig_21.png" src="_images/fig_21.png" style="width: 1120.0px; height: 932.0px;" /></a>
    3237 <p class="caption"><span class="caption-number">Fig. 23 </span><span class="caption-text">RTCM message numbers, latencies and observation types logged by BNC</span></p>
    3238 </div>
    3239 <div class="section" id="id7">
    3240 <h4>Mountpoint - optional<a class="headerlink" href="#id7" title="Permalink to this headline">¶</a></h4>
    3241 <p>Specify a mountpoint to apply one or several of the &#8216;Miscellaneous&#8217; options to the corresponding stream. Enter &#8216;ALL&#8217; if you want to apply these options to all configured streams. An empty option field (default) means that you do not want BNC to apply any of these options.</p>
    3242 </div>
    3243 <div class="section" id="log-latency-optional">
    3244 <h4>Log Latency - optional<a class="headerlink" href="#log-latency-optional" title="Permalink to this headline">¶</a></h4>
    3245 <p>BNC can average latencies per stream over a certain period of GPS time, the &#8216;Log latency&#8217; interval. Mean latencies are calculated from the individual latencies of one (first incoming) observation or Broadcast Correction per second. The mean latencies are then saved in BNC&#8217;s logfile. Note that computing correct latencies requires the clock of the host computer to be properly synchronized. Note further that visualized latencies from the &#8216;Latency&#8217; tab on the bottom of the main window represent individual latencies and not the mean latencies for the logfile.</p>
    3246 <div class="section" id="latency">
    3247 <span id="index-23"></span><h5>Latency<a class="headerlink" href="#latency" title="Permalink to this headline">¶</a></h5>
    3248 <p>Latency is defined in BNC by</p>
    3249 <div class="math">
    3250 \[l = t_{UTC} - t_{GPS} + t_{leap}\]</div>
    3251 <p>with latency <span class="math">\(l\)</span>, UTC time provided by BNC&#8217;s host <span class="math">\(t_{UTC}\)</span>, GPS time of currently processed epoch <span class="math">\(t_{GPS}\)</span> and Leap seconds between UTC and GPS time <span class="math">\(t_{leap}\)</span>.</p>
    3252 </div>
    3253 <div class="section" id="statistics">
    3254 <span id="index-24"></span><h5>Statistics<a class="headerlink" href="#statistics" title="Permalink to this headline">¶</a></h5>
    3255 <p>BNC counts the number of GPS seconds covered by at least one observation. It also estimates an observation rate (independent from the a priori specified &#8216;Observation rate&#8217;) from all observations received throughout the first full &#8216;Log latency&#8217; interval. Based on this rate, BNC estimates the number of data gaps when appearing in subsequent intervals.</p>
    3256 <p>Latencies of observations or corrections to Broadcast Ephemeris and statistical information can be recorded in the &#8216;Log&#8217; tab at the end of each &#8216;Log latency&#8217; interval. A typical output from a 1 hour &#8216;Log latency&#8217; interval would be:</p>
    3257 <div class="highlight-console"><div class="highlight"><pre><span class="go">08-03-17 15:59:47 BRUS0: Mean latency 1.47 sec, min 0.66, max 3.02, rms 0.35, 3585 epochs, 15 gaps</span>
    3258 </pre></div>
    3259 </div>
    3260 <p>Select a &#8216;Log latency&#8217; interval to activate this function or select the empty option field if you do not want BNC to log latencies and statistical information.</p>
    3261 </div>
    3262 </div>
    3263 <div class="section" id="scan-rtcm-optional">
    3264 <h4>Scan RTCM - optional<a class="headerlink" href="#scan-rtcm-optional" title="Permalink to this headline">¶</a></h4>
    3265 <p>When configuring a GNSS receiver for RTCM stream generation, the firmware&#8217;s setup interface may not provide details about RTCM message types and observation types. As reliable information concerning stream content should be available e.g. for Ntrip Broadcaster operators to maintain the broadcaster&#8217;s source-table, BNC allows to scan RTCM streams for incoming message types and printout some of the contained meta-data. Contained observation types are also printed because such information is required a priori for the conversion of RTCM Version 3 MSM streams to RINEX Version 3 files. The idea for this option arose from &#8216;inspectRTCM&#8217;, a comprehensive stream analyzing tool written by D. Stöcker.</p>
    3266 <p>Tick &#8216;Scan RTCM&#8217; to scan RTCM Version 2 or 3 streams and log all contained</p>
    3267 <ul class="simple">
     2603</p>
     2604
     2605<p>
     2606The following is an example for synchronized file and IP port output, which presents observations from GPS, GLONASS, Galileo, BDS (BeiDou), QZSS, and SBAS satellites as collected through streams FFMJ1, WTZR0 and CUT07: <pre>
     2607> 1884 206010.0000000
     2608FFMJ1 G02 C1C   23286796.846 L1C  122372909.535  127 S1C   49.000 C2W   23286793.846 L2W   95355531.583  127 S2W   36.000
     2609...
     2610FFMJ1 G26 C1C   24796690.856 L1C  130307533.550  127 S1C   42.000 C2W   24796697.776 L2W  101538315.510  127 S2W   25.000
     2611FFMJ1 S20 C1C   38682850.302 L1C  203279786.777  127 S1C   42.000
     2612FFMJ1 S36 C1C   38288096.846 L1C  201205293.221  127 S1C   47.000
     2613FFMJ1 R03 C1C   23182737.548 L1C  124098947.838  127 S1C   48.000 C2P   23182746.288 L2P   96521352.130  127 S2P   42.000
     2614...
     2615FFMJ1 R21 C1C   22201343.772 L1C  118803851.388  127 S1C   52.000 C2P   22201348.892 L2P   92402993.884  127 S2P   44.000
     2616CUT07 G01 C1C   25318977.766 L1C  133052476.488  521 D1C       2533.500 S1C   33.688 C2W   25318993.668 L2W  103677584.878  521 S2W   15.625 C2X   25318991.820 L2X  103676566.850  521 S2X   35.375 C5X   25318993.461 L5X   99357161.238  521 S5X   39.812
     2617...
     2618CUT07 G27 C1C   20251005.351 L1C  106420601.969  627 D1C        250.937 S1C   50.312 C2W   20251014.512 L2W   82924447.644  627 S2W   45.125 C2X   20251014.246 L2X   82924648.644  627 S2X   53.188 C5X   20251015.480 L5X   79469461.619  627 S5X   56.375
     2619CUT07 R01 C1C   20312587.149 L1C  108583395.373  625 D1C      -2456.703 S1C   52.875 C1P   20312586.192 L1P  108582844.382  625 S1P   51.000 C2C   20312593.422 L2C   84452892.610  625 S2C   43.625 C2P   20312593.836 L2P   84453114.622  625 S2P   42.312
     2620...
     2621CUT07 R24 C1C   19732223.242 L1C  105517564.659  630 D1C         -7.477 S1C   47.375 C1P   19732222.609 L1P  105517564.669  630 S1P   46.375 C2C   19732227.660 L2C   82069550.193  630 S2C   38.125 C2P   19732227.316 L2P   82068477.204  630 S2P   37.375
     2622CUT07 E11 C1X   28843071.547 L1X  151571208.816  405 D1X      -2221.055 S1X   29.000 C7X   28843082.531 L7X  116138795.418  405 S7X   27.188 C8X   28843085.699 L8X  114662585.261  405 S8X   33.688 C5X   28843086.281 L5X  113186518.907  405 S5X   30.375
     2623...
     2624CUT07 E30 C1X   28096037.289 L1X  147645296.835  630 D1X      -2020.613 S1X   34.688 C7X   28096054.070 L7X  113131111.635  630 S7X   36.875 C8X   28096055.684 L8X  111692702.565  630 S8X   40.375 C5X   28096058.008 L5X  110254591.278  630 S5X   36.188
     2625CUT07 S27 C1C   40038220.843 L1C  210402303.982  616 D1C        104.688 S1C   36.125 C5I   40038226.375 L5I  157118241.003  616 S5I   40.875
     2626...
     2627CUT07 S37 C1C   37791754.594 L1C  198596881.251  704 D1C        106.605 S1C   37.875
     2628CUT07 J01 C1C   33076065.781 L1C  173816471.106  674 D1C        169.765 S1C   48.375 C1Z   33076063.086 L1Z  173815528.437  674 S1Z   48.625 C6L   33076065.652 L6L  141084039.422  674 S6L   52.688 C2X   33076070.523 L2X  135440679.474  674 S2X   50.500 C5X   33076076.496 L5X  129797319.733  674 S5X   54.188 C1X   33076065.492 L1X  173815529.101  674 S1X   52.375
     2629CUT07 C01 C2I   37725820.914 L2I  196447455.374  704 D2I         90.898 S2I   41.312 C6I   37725810.168 L6I  159630204.932  704 S6I   44.875 C7I   37725815.196 L7I  151906389.245  704 S7I   45.812
     2630...
     2631CUT07 C14 C2I   23351041.328 L2I  121594621.501  592 D2I       2422.203 S2I   45.688 C6I   23351032.926 L6I   98805869.415  592 S6I   48.500 C7I   23351041.996 L7I   94024977.673  592 S7I   45.688
     2632WTZR0 G02 C1C   23641481.864 L1C  124236803.604  127 S1C   47.500 C2W   23641476.604 L2W   96807881.233  127 S2W   39.250
     2633...
     2634WTZR0 G26 C1C   24681555.676 L1C  129702453.534  127 S1C   43.750 C2W   24681561.256 L2W  101066873.870  127 S2W   37.750
     2635WTZR0 R03 C1C   22982596.508 L1C  123027564.682  127 S1C   47.000 C2P   22982598.368 L2P   95688085.627  127 S2P   43.250
     2636...
     2637WTZR0 R21 C1C   22510252.692 L1C  120456902.811  127 S1C   47.500 C2P   22510253.132 L2P   93688698.401  127 S2P   44.000
     2638
     2639> 1884 206011.0000000
     2640...
     2641</pre>
     2642<p>
     2643The source code for BNC comes with a Perl script named 'test_tcpip_client.pl' that allows to read BNC's (synchronized or unsynchronized) ASCII observation output from the IP port and print it on standard output for verification.
     2644</p>
     2645
     2646<p>
     2647Note that any socket connection of an application to BNC's synchronized or unsynchronized observation ports is recorded in the 'Log' tab on the bottom of the main window together with a connection counter, resulting in log records like 'New client connection on sync/usync port: # 1'.
     2648</p>
     2649
     2650<p>
     2651The following figure shows the screenshot of a BNC configuration where a number of streams is pulled from different Ntrip Broadcasters to feed a GNSS engine via IP port output.
     2652</p>
     2653<p><img src="IMG/screenshot12.png"/></p>
     2654<p><u>Figure 18:</u> Synchronized BNC output via IP port to feed a GNSS real-time engine</p>
     2655
     2656<p><h4>2.9.1 <a name="syncport">Port - optional</h4></p>
     2657<p>
     2658BNC can produce synchronized observations in ASCII format on your local host (IP 127.0.0.1) through an IP 'Port'. Synchronized means that BNC collects all observation data for a specific epoch, which become available within a certain number of seconds (see 'Wait for Full Obs Epoch' option). It then - epoch by epoch - outputs whatever has been received. The output comes block-wise per stream following the format specified in Table 2. Enter an IP port number here to activate this function. The default is an empty option field, meaning that no synchronized output is generated.</p>
     2659</p>
     2660
     2661<p><h4>2.9.2 <a name="syncwait">Wait for Full Obs Epoch - mandatory if 'Port' is set</h4></p>
     2662<p>
     2663When feeding a real-time GNSS network engine waiting for synchronized observations epoch by epoch, BNC drops whatever is received later than 'Wait for full obs epoch' seconds. A value of 3 to 5 seconds could be an appropriate choice for that, depending on the latency of the incoming streams and the delay acceptable for your real-time GNSS product. Default value for 'Wait for full obs epoch' is 5 seconds.
     2664</p>
     2665<p>
     2666Note that 'Wait for full obs epoch' does not affect the RINEX Observation file content. Observations received later than 'Wait for full obs epoch' seconds will still be included in the RINEX Observation files.
     2667</p>
     2668
     2669<p><h4>2.9.3 <a name="syncsample">Sampling - mandatory if 'File' or 'Port' is set</h4></p>
     2670<p>
     2671Select a synchronized observation output sampling interval in seconds. A value of zero '0' tells BNC to send/store all received epochs. This is the default value.
     2672</p>
     2673
     2674<p><h4>2.9.4 <a name="syncfile">File - optional</h4></p>
     2675<p>
     2676Specify the full path to a 'File' where synchronized observations are saved in plain ASCII format. The default value is an empty option field, meaning that no ASCII output file is created.
     2677</p>
     2678<p>
     2679Beware that the size of this file can rapidly increase depending on the number of incoming streams. To prevent it from becoming too large, the name of the file can be changed on-the-fly. This option is primarily meant for test and evaluation.
     2680</p>
     2681
     2682<p><h4>2.9.5 <a name="syncuport">Port (unsynchronized) - optional</h4></p>
     2683<p>
     2684BNC can produce unsynchronized observations from all configured streams in ASCII format on your local host (IP 127.0.0.1) through an IP 'Port'. Unsynchronized means that BNC immediately forwards any received observation to the port. Nevertheless, the output is produced block-wise per stream. Specify an IP port number here to activate this function. The default is an empty option field, meaning that no unsynchronized output is generated.
     2685</p>
     2686<p>
     2687The following is an example for unsynchronized IP port output which presents observations from GPS and GLONASS as collected through stream WTZR0. The format for synchronized and unsynchronized output of observations is very much the same. However, unsynchronized output does not have 'Epoch Records' and 'Observation Records'. Instead each record contains the 'GPS Week Number' and 'GPS Second of Week' time tag between the mountpoint string and the satellite number, see Table 2 for format details.
     2688</p>
     2689
     2690<pre>
     2691WTZR0 1884 209623.0000000 G02 C1C   22259978.112 L1C  116976955.890  127 S1C   49.250 C2W   22259974.472 L2W   91150855.991  127 S2W   44.500
     2692WTZR0 1884 209623.0000000 G03 C1C   24426736.058 L1C  128363272.624  127 S1C   43.500 C2W   24426741.838 L2W  100023289.335  127 S2W   39.000
     2693...
     2694WTZR0 1884 209623.0000000 G29 C1C   25275897.592 L1C  132825869.191   90 S1C   35.250 C2W   25275893.692 L2W  103500567.110    8 S2W   28.500
     2695WTZR0 1884 209623.0000000 G30 C1C   23670676.284 L1C  124390283.441  127 S1C   46.750 C2W   23670679.784 L2W   96927531.685  127 S2W   39.500
     2696WTZR0 1884 209623.0000000 R04 C1C   20758122.104 L1C  111158778.398  127 S1C   50.000 C2P   20758121.664 L2P   86456803.800  127 S2P   47.000
     2697WTZR0 1884 209623.0000000 R05 C1C   19430829.552 L1C  103868912.028  127 S1C   45.750 C2P   19430829.672 L2P   80786936.849  127 S2P   46.750
     2698...
     2699</pre>
     2700
     2701<p><h4>2.10 <a name="serial">Serial Output</h4></p>
     2702<p>
     2703You may use BNC to feed a serially connected device like a GNSS receiver. For that, an incoming stream can be forwarded to a serial port. Depending on the stream content, the receiver may use it for Differential GNSS, Precise Point Positioning or any other purpose supported by its firmware.
     2704</p>
     2705<p>
     2706Note that receiving a VRS stream requires the receiver sending NMEA sentences (option 'NMEA' set to 'Manual' or 'Auto') to the Ntrip Broadcaster. The following figure shows the data flow when pulling a VRS stream or a physical (non-VRS) stream.
     2707</p>
     2708
     2709<p><img src="IMG/screenshot35.png"/></p>
     2710<p><u>Figure 19:</u> Flowcharts, BNC forwarding a stream to a serially connected receiver; sending NMEA sentences is mandatory for VRS streams</p>
     2711
     2712<p>
     2713The following figure shows the screenshot of an example situation where BNC pulls a VRS stream from an Ntrip Broadcaster to feed a serially connected RTK rover.
     2714</p>
     2715
     2716<p><img src="IMG/screenshot11.png"/></p>
     2717<p><u>Figure 20:</u> BNC pulling a VRS stream to feed a serially connected RTK rover</p>
     2718
     2719<p><h4>2.10.1 <a name="sermount">Mountpoint - optional</h4></p>
     2720<p>
     2721Enter a 'Mountpoint' to forward its corresponding stream to a serially connected GNSS receiver.
     2722</p>
     2723<p>
     2724When selecting one of the serial communication options listed below, make sure that you pick those configured to the serially connected receiver.
     2725</p>
     2726
     2727<p><h4>2.10.2 <a name="serport">Port Name - mandatory if 'Mountpoint' is set</h4></p>
     2728<p>
     2729Enter the serial 'Port name' selected on your host for communication with the serially connected receiver. Valid port names are
     2730</p>
     2731<pre>
     2732   Windows:       COM1, COM2
     2733   Linux:         /dev/ttyS0, /dev/ttyS1
     2734   FreeBSD:       /dev/ttyd0, /dev/ttyd1
     2735   Digital Unix:  /dev/tty01, /dev/tty02
     2736   HP-UX:         /dev/tty1p0, /dev/tty2p0
     2737   SGI/IRIX:      /dev/ttyf1, /dev/ttyf2
     2738   SunOS/Solaris: /dev/ttya, /dev/ttyb
     2739</pre>
     2740<p>
     2741Note that you must plug a serial cable in the port defined here before you start BNC.
     2742</p>
     2743
     2744<p><h4>2.10.3 <a name="serbaud">Baud Rate - mandatory if 'Mountpoint' is set</h4></p>
     2745<p>
     2746Select a 'Baud rate' for the serial output link. Note that using a high baud rate is recommended.
     2747</p>
     2748
     2749<p><h4>2.10.4 <a name="serflow">Flow Control - mandatory if 'Mountpoint' is set</h4></p>
     2750<p>
     2751Select a 'Flow control' for the serial output link. Note that your selection must equal the flow control configured to the serially connected device. Select 'OFF' if you do not know better.
     2752</p>
     2753
     2754<p><h4>2.10.5 <a name="serparity">Parity - mandatory if 'Mountpoint' is set</h4></p>
     2755<p>
     2756Select the 'Parity' for the serial output link. Note that parity is often set to 'NONE'.
     2757</p>
     2758
     2759<p><h4>2.10.6 <a name="serdata">Data Bits - mandatory if 'Mountpoint' is set</h4></p>
     2760<p>
     2761Select the number of 'Data bits' for the serial output link. Note that often '8' data bits are used.
     2762</p>
     2763
     2764<p><h4>2.10.7 <a name="serstop">Stop Bits - mandatory if 'Mountpoint' is set</h4></p>
     2765<p>
     2766Select the number of 'Stop bits' for the serial output link. Note that often '1' stop bit is used.
     2767</p>
     2768
     2769<p><h4>2.10.8 <a name="serauto">NMEA - mandatory if 'Mountpoint' is set</h4></p>
     2770<p>The 'NMEA' option supports the so-called 'Virtual Reference Station' (VRS) concept which requires the receiver to send approximate position information to the Ntrip Broadcaster. Select 'no' if you do not want BNC to forward or upload any NMEA sentence to the Ntrip broadcaster in support of VRS.
     2771</p>
     2772<p>Select 'Auto' to automatically forward NMEA sentences of type GGA from your serially connected receiver to the Ntrip broadcaster and/or save them in a file.
     2773</p>
     2774<p>Select 'Manual GPGGA' or 'Manual GNGGA' if you want BNC to produce and upload GPGGA or GNGGA NMEA sentences to the Ntrip broadcaster because your serially connected receiver does not generate them. A Talker ID 'GP' proceeding the GGA string stands for GPS solutions while a Talker ID 'GN' stands for multi-constellation solutions.
     2775</p>
     2776<p>Note that selecting 'Auto' or 'Manual' works only for VRS streams which show up under the 'Streams' canvas on BNC's main window with 'nmea' stream attribute set to 'yes'. This attribute is either extracted from the Ntrip broadcaster's source-table or introduced by the user through editing the BNC configuration file.
     2777</p>
     2778
     2779<p><h4>2.10.9 <a name="serfile">File - optional if 'NMEA' is set to 'Auto'</h4></p>
     2780<p>Specify the full path to a file where NMEA sentences coming from your serially connected receiver are saved. Default is an empty option field, meaning that no NMEA sentences will be saved on disk.
     2781</p>
     2782<p><h4>2.10.10 <a name="serheight">Height - mandatory if 'NMEA' is set to 'Manual'</h4></p>
     2783<p>
     2784Specify an approximate 'Height' above mean sea level in meters for the reference station introduced through 'Mountpoint'. Together with the latitude and longitude from the Ntrip broadcaster source-table, the height information is used to build GGA sentences to be sent to the Ntrip broadcaster.
     2785</p>
     2786<p>For adjusting latitude and longitude values of a VRS stream given in the 'Streams' canvas, you can double click the latitude/longitude data fields, specify appropriate values and then hit Enter.
     2787</p>
     2788<p>This option is only relevant when option 'NMEA' is set to 'Manual GPGGA' or 'Manual GNGGA' respectively.
     2789</p>
     2790
     2791<p><h4>2.10.11 <a name="sersampl">Sampling - mandatory if 'NMEA' is set to 'Manual'</h4></p>
     2792<p>
     2793Select a sampling interval in seconds for manual generation and upload of NMEA GGA sentences.
     2794</p>
     2795<p>
     2796A sampling rate of '0' means that a GGA sentence will be sent only once to initialize the requested VRS stream. Note that some VRS systems need GGA sentences at regular intervals.
     2797</p>
     2798
     2799<p><h4>2.11 <a name="advnote">Outages</h4></p>
     2800<p>
     2801At any time an incoming stream might become unavailable or corrupted. In such cases, it is important that the BNC operator and/or the stream providers become aware of the situation so that measures can be taken to restore the stream. Furthermore, continuous attempts to decode a corrupted stream can generate unnecessary workload for BNC. Outages and corruptions are handled by BNC as follows:
     2802</p>
     2803<p>
     2804<u>Stream outages:</u> BNC considers a connection to be broken when there are no incoming data detected for more than 20 seconds. When this occurs, BNC will try to reconnect at a decreasing rate. It will first try to reconnect with 1 second delay and again in 2 seconds if the previous attempt failed. If the attempt is still unsuccessful, it will try to reconnect within 4 seconds after the previous attempt and so on. The waiting time doubles each time with a maximum of 256 seconds.
     2805</p>
     2806<p>
     2807<u>Stream corruption:</u> Not all chunks of bits transferred to BNC's internal decoder may return valid observations. Sometimes several chunks might be needed before the next observation can be properly decoded. BNC buffers all outputs (both valid and invalid) from the decoder for a short time span (size derived from the expected 'Observation rate') to then determine whether a stream is valid or corrupted.
     2808</p>
     2809<p>
     2810Outage and corruption events are reported in the 'Log' tab. They can also be passed on as parameters to a shell script or batch file to generate an advisory note to BNC's operator or affected stream providers. This functionality lets users utilize BNC as a real-time performance monitor and alarm system for a network of GNSS reference stations.
     2811</p>
     2812
     2813<p><h4>2.11.1 <a name="obsrate">Observation Rate - optional</h4></p>
     2814<p>
     2815BNC can collect all returns (success or failure) coming from a decoder within a certain short time span to then decide whether a stream has an outage or its content is corrupted. This procedure needs a rough a priori estimate of the expected observation rate of the incoming streams.</p><p>An empty option field (default) means that you do not want explicit information from BNC about stream outages and incoming streams that cannot be decoded.
     2816</p>
     2817
     2818<p><h4>2.11.2 <a name="advfail">Failure Threshold - mandatory if 'Observation rate' is set</h4></p>
     2819<p>
     2820Event 'Begin_Failure' will be reported if no data is received continuously for longer than the 'Failure threshold' time. Similarly, event 'Begin_Corrupted' will be reported when corrupted data is detected by the decoder continuously for longer than this 'Failure threshold' time. The default value is set to 15 minutes and is recommended as to not inundate users with too many event reports.
     2821</p>
     2822<p>
     2823Note that specifying a value of zero '0' for the 'Failure threshold' will force BNC to report any stream failure immediately. Note also that for using this function you need to specify the 'Observation rate'.
     2824</p>
     2825
     2826<p><h4>2.11.3 <a name="advreco">Recovery Threshold - mandatory if 'Observation rate' is set</h4></p>
     2827<p>
     2828Once a 'Begin_Failure' or 'Begin_Corrupted' event has been reported, BNC will check when the stream again becomes available or uncorrupted. Event 'End_Failure' or 'End_Corrupted' will be reported as soon as valid observations are detected continuously throughout the 'Recovery threshold' time span. The default value is set to 5 minutes and is recommended as to not inundate users with too many event reports.
     2829</p>
     2830<p>
     2831Note that specifying a value of zero '0' for the 'Recovery threshold' will force BNC to report any stream recovery immediately. Note also that for using this function you need to specify the 'Observation rate'.
     2832</p>
     2833
     2834<p><h4>2.11.4 <a name="advscript">Script - optional if 'Observation rate' is set</h4></p>
     2835<p>
     2836As mentioned before, BNC can trigger a shell script or a batch file to be executed when one of the described events is reported. This script can be used to email an advisory note to network operator or stream providers. To enable this feature, specify the full path to the script or batch file in the 'Script' field. The affected stream's mountpoint and type of event reported ('Begin_Outage', 'End_Outage', 'Begin_Corrupted' or 'End_Corrupted') will then be passed on to the script as command line parameters (%1 and %2 on Windows systems or $1 and $2 on Unix/Linux/Mac OS X systems) together with date and time information.
     2837</p>
     2838<p>
     2839Leave the 'Script' field empty if you do not wish to use this option. An invalid path will also disable this option.
     2840</p>
     2841<p>
     2842Examples for command line parameter strings passed on to the advisory 'Script' are:
     2843<pre>
     2844   FFMJ0 Begin_Outage 08-02-21 09:25:59
     2845   FFMJ0 End_Outage 08-02-21 11:36:02 Begin was 08-02-21 09:25:59
     2846</pre>
     2847</p>
     2848<p>
     2849Sample script for Unix/Linux/Mac OS X systems:
     2850</p>
     2851<pre>
     2852   #!/bin/bash
     2853   sleep $((60*RANDOM/32767))
     2854   cat &gt; mail.txt &lt;&lt;EOF
     2855   Advisory Note to BNC User,
     2856   Please note the following advisory received from BNC.
     2857   Stream: $*
     2858   Regards, BNC
     2859   EOF
     2860   mail -s &quot;NABU: $1&quot; email@address &lt; mail.txt
     2861</pre>
     2862</p>
     2863<p>
     2864Note the sleep command in this script, which causes the system to wait for a random period of up to 60 seconds before sending the email. This should avoid overloading your mail server in case of a simultaneous failure of many streams.
     2865</p>
     2866
     2867<p><h4>2.12 <a name="misc">Miscellaneous</h4></p>
     2868<p>
     2869This section describes several miscellaneous options which can be applied to a single stream (mountpoint) or to all configured streams.
     2870</p>
     2871
     2872<p>
     2873The following figure shows RTCM message numbers and observation types contained in stream 'CUT07' and the message latencies recorded every 2 seconds.
     2874</p>
     2875<p><img src="IMG/screenshot14.png"/></p>
     2876<p><u>Figure 21:</u> RTCM message numbers, latencies and observation types logged by BNC</p>
     2877
     2878
     2879<p><h4>2.12.1 <a name="miscmount">Mountpoint - optional </h4></p>
     2880<p>
     2881Specify a mountpoint to apply one or several of the 'Miscellaneous' options to the corresponding stream. Enter 'ALL' if you want to apply these options to all configured streams. An empty option field (default) means that you do not want BNC to apply any of these options.
     2882</p>
     2883
     2884<p><h4>2.12.2 <a name="miscperf">Log Latency - optional </h4></p>
     2885<p>
     2886 BNC can average latencies per stream over a certain period of GPS time, the 'Log latency' interval. Mean latencies are calculated from the individual latencies of one (first incoming) observation or Broadcast Correction per second. The mean latencies are then saved in BNC's logfile. Note that computing correct latencies requires the clock of the host computer to be properly synchronized. Note further that visualized latencies from the 'Latency' tab on the bottom of the main window represent individual latencies and not the mean latencies for the logfile.
     2887</p>
     2888<p>
     2889<u>Latency:</u> Latency is defined in BNC by the following equation:
     2890</p>
     2891<pre>
     2892    UTC time provided by BNC's host
     2893  - GPS time of currently processed epoch
     2894  + Leap seconds between UTC and GPS time
     2895  --------------
     2896  = Latency
     2897</pre>
     2898<p>
     2899<u>Statistics:</u> BNC counts the number of GPS seconds covered by at least one observation. It also estimates an observation rate (independent from the a priori specified 'Observation rate') from all observations received throughout the first full 'Log latency' interval. Based on this rate, BNC estimates the number of data gaps when appearing in subsequent intervals.
     2900</p>
     2901<p>
     2902Latencies of observations or corrections to Broadcast Ephemeris and statistical information can be recorded in the 'Log' tab at the end of each 'Log latency' interval. A typical output from a 1 hour 'Log latency' interval would be:
     2903</p>
     2904<pre>
     290508-03-17 15:59:47 BRUS0: Mean latency 1.47 sec, min 0.66, max 3.02, rms 0.35, 3585 epochs, 15 gaps
     2906</pre>
     2907<p>
     2908Select a 'Log latency' interval to activate this function or select the empty option field if you do not want BNC to log latencies and statistical information.
     2909</p>
     2910
     2911
     2912<p><h4>2.12.3 <a name="miscscan">Scan RTCM - optional</h4></p>
     2913<p>
     2914When configuring a GNSS receiver for RTCM stream generation, the firmware's setup interface may not provide details about RTCM message types and observation types. As reliable information concerning stream content should be available e.g. for Ntrip Broadcaster operators to maintain the broadcaster's source-table, BNC allows to scan RTCM streams for incoming message types and printout some of the contained meta-data. Contained observation types are also printed because such information is required a priori for the conversion of RTCM Version 3 MSM streams to RINEX Version 3 files. The idea for this option arose from 'inspectRTCM', a comprehensive stream analyzing tool written by D. St&ouml;cker.
     2915</p>
     2916<p>
     2917Tick 'Scan RTCM' to scan RTCM Version 2 or 3 streams and log all contained
     2918</p>
     2919<ul>
    32682920<li>Numbers of incoming message types</li>
    32692921<li>Antenna Reference Point (ARP) coordinates</li>
    … …  
    32722924<li>Antenna descriptor.</li>
    32732925</ul>
    3274 <p>In case of RTCM Version 3 streams the output includes</p>
    3275 <ul class="simple">
     2926In case of RTCM Version 3 streams the output includes
     2927<ul>
    32762928<li>RINEX Version 3 Observation types</li>
    32772929</ul>
    3278 <p>Note that in RTCM Version 2 message types 18 and 19 carry only the observables of one frequency. Hence it needs two type 18 and 19 messages per epoch to transport observations from dual frequency receivers.</p>
    3279 <p>Please note further that RTCM Version 3 message types 1084 for GLONASS do not contain GLONASS channel numbers. Observations from these messages can only be decoded when you include 1020 GLONASS ephemeris messages to your stream which contain the channels. You could also consider adding a second stream carrying 1087 GLONASS observation messages or 1020 GLONASS ephemeris messages as both contain the GLONASS channel numbers.</p>
    3280 <p>Logged time stamps refer to message reception time and allow understanding repetition rates. Enter &#8216;ALL&#8217; if you want to log this information from all configured streams. Beware that the size of the logfile can rapidly increase depending on the number of incoming RTCM streams.</p>
    3281 <p>This option is primarily meant for test and evaluation. Use it to figure out what exactly is produced by a specific GNSS receiver&#8217;s configuration. An empty option field (default) means that you do not want BNC to print message type numbers and antenna information carried in RTCM streams.</p>
    3282 </div>
    3283 <div class="section" id="id8">
    3284 <h4>Port - optional<a class="headerlink" href="#id8" title="Permalink to this headline">¶</a></h4>
    3285 <p>BNC can output streams related to the above specified &#8216;Mountpoint&#8217; through a TCP/IP port of your local host. Enter a port number to activate this function. The stream content remains untouched. BNC does not decode or reformat the data for this output. Be careful when keyword &#8216;ALL&#8217; is specified as &#8216;Mountpoint&#8217; for involving all incoming streams together because the affiliation of data to certain streams gets lost in the output. An empty option field (default) means that you do not want BNC to apply the TCP/IP port output option.</p>
    3286 </div>
    3287 </div>
    3288 <div class="section" id="ppp-client">
    3289 <span id="index-25"></span><h3>PPP Client<a class="headerlink" href="#ppp-client" title="Permalink to this headline">¶</a></h3>
    3290 <p>BNC can derive coordinates for rover positions following the Precise Point Positioning (PPP) approach. It uses code or code plus phase data from one or more GNSS systems in ionosphere-free linear combinations P3, L3, or P3&amp;L3. Besides pulling streams of observations from a dual frequency GNSS receiver, this</p>
    3291 <ul class="simple">
    3292 <li>Requires pulling in addition a stream carrying satellite orbit and clock corrections to Broadcast Ephemeris in the form of RTCM Version 3 &#8216;State Space Representation&#8217; (SSR) messages. Note that for BNC these Broadcast Corrections need to be referred to the satellite&#8217;s Antenna Phase Center (APC). Streams providing such messages are listed on (<a class="reference external" href="http://igs.bkg.bund.de/ntrip/orbits">http://igs.bkg.bund.de/ntrip/orbits</a>) <a class="reference internal" href="bnchelp.html#caissy2012a" id="id9">[8]</a>. Stream &#8216;CLK11&#8217; on Ntrip Broadcaster &#8216;products.igs-ip.net:2101&#8217; is an example.</li>
    3293 <li>May require pulling a stream carrying Broadcast Ephemeris available as RTCM Version 3 message types 1019, 1020, 1043, 1044, 1045, 1046 and 63 (tentative). This becomes a must only when the stream coming from the receiver does not contain Broadcast Ephemeris or provides them only at very low repetition rate. Streams providing such messages are listed on <a class="reference external" href="http://igs.bkg.bund.de/ntrip/ephemeris">http://igs.bkg.bund.de/ntrip/ephemeris</a>. Stream &#8216;RTCM3EPH&#8217; on caster &#8216;products.igs-ip.net:2101&#8217; is an example.</li>
    3294 </ul>
    3295 <p>Note that Broadcast Ephemeris parameters pass a plausibility check in BNC which allows to ignore incorrect or outdated ephemeris data when necessary, leaving a note &#8216;WRONG EPHEMERIS&#8217; or &#8216;OUTDATED EPHEMERIS&#8217; in the logfile.</p>
    3296 <p>When using the PPP option, it is important to understand which effects are corrected by BNC:</p>
    3297 <ul class="simple">
     2930</p>
     2931
     2932<p>
     2933Note that in RTCM Version 2 message types 18 and 19 carry only the observables of one frequency. Hence it needs two type 18 and 19 messages per epoch to transport observations from dual frequency receivers.
     2934</p>
     2935
     2936<p>
     2937Please note further that RTCM Version 3 message types 1084 for GLONASS do not contain GLONASS channel numbers. Observations from these messages can only be decoded when you include 1020 GLONASS ephemeris messages to your stream which contain the channels. You could also consider adding a second stream carrying 1087 GLONASS observation messages or 1020 GLONASS ephemeris messages as both contain the GLONASS channel numbers.
     2938</p>
     2939<p>
     2940
     2941<p>Logged time stamps refer to message reception time and allow understanding repetition rates. Enter 'ALL' if you want to log this information from all configured streams. Beware that the size of the logfile can rapidly increase depending on the number of incoming RTCM streams.
     2942</p>
     2943<p>This option is primarily meant for test and evaluation. Use it to figure out what exactly is produced by a specific GNSS receiver's configuration. An empty option field (default) means that you do not want BNC to print message type numbers and antenna information carried in RTCM streams.
     2944</p>
     2945
     2946
     2947<p><h4>2.12.4 <a name="miscport">Port - optional</h4></p>
     2948<p>
     2949BNC can output streams related to the above specified 'Mountpoint' through a TCP/IP port of your local host. Enter a port number to activate this function. The stream content remains untouched. BNC does not decode or reformat the data for this output.
     2950</p>
     2951<p>
     2952Be careful when keyword 'ALL' is specified as 'Mountpoint' for involving all incoming streams together because the affiliation of data to certain streams gets lost in the output.
     2953</p>
     2954<p>
     2955 An empty option field (default) means that you do not want BNC to apply the TCP/IP port output option.
     2956</p>
     2957
     2958
     2959<p><h4>2.13 <a name="pppclient">PPP Client</h4></p>
     2960<p>
     2961BNC can derive coordinates for rover positions following the Precise Point Positioning (PPP) approach. It uses code or code plus phase data from one or more GNSS systems in ionosphere-free linear combinations P3, L3, or P3&L3. Besides pulling streams of observations from a dual frequency GNSS receiver, this
     2962<ul>
     2963<li>Requires pulling in addition a stream carrying satellite orbit and clock corrections to Broadcast Ephemeris in the form of RTCM Version 3 'State Space Representation' (SSR) messages. Note that for BNC these Broadcast Corrections need to be referred to the satellite's Antenna Phase Center (APC). Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/orbits</u> (Caissy et al. 2012). Stream 'CLK11' on Ntrip Broadcaster 'products.igs-ip.net:2101' is an example.</li>
     2964<li>May require pulling a stream carrying Broadcast Ephemeris available as RTCM Version 3 message types 1019, 1020, 1043, 1044, 1045, 1046 and 63 (tentative). This becomes a must only when the stream coming from the receiver does not contain Broadcast Ephemeris or provides them only at very low repetition rate. Streams providing such messages are listed on <u>http://igs.bkg.bund.de/ntrip/ephemeris</u>. Stream 'RTCM3EPH' on caster 'products.igs-ip.net:2101' is an example.</li>
     2965</ul>
     2966Note that Broadcast Ephemeris parameters pass a plausibility check in BNC which allows to ignore incorrect or outdated ephemeris data when necessary, leaving a note 'WRONG EPHEMERIS' or 'OUTDATED EPHEMERIS' in the logfile.
     2967</p>
     2968
     2969<p>When using the PPP option, it is important to understand which effects are corrected by BNC.
     2970</p>
     2971<ul>
    32982972<li>BNC does correct for Solid Earth Tides and Phase Windup.</li>
    32992973<li>Satellite Antenna Phase Center offsets are corrected.</li>
    33002974<li>Satellite Antenna Phase Center variations are neglected because this is a small effect usually less than 2 centimeters.</li>
    3301 <li>Observations can be corrected for a Receiver Antenna Offset and Receiver Antenna Phase Center Variation. Depending on whether or not these corrections are applied, the estimated position is either that of the receiver&#8217;s Antenna Phase Center or that of the receiver&#8217;s Antenna Reference Point.</li>
     2975<li>Observations can be corrected for a Receiver Antenna Offset and Receiver Antenna Phase Center Variation. Depending on whether or not these corrections are applied, the estimated position is either that of the receiver's Antenna Phase Center or that of the receiver's Antenna Reference Point.</li>
    33022976<li>Ocean and atmospheric loading is neglected. Atmospheric loading is pretty small. Ocean loading is usually also a small effect but may reach up to about 10 centimeters for coastal stations.</li>
    33032977<li>Rotational deformation due to polar motion (Polar Tides) is not corrected because this is a small effect usually less than 2 centimeters.</li>
    33042978</ul>
    3305 <p>The provider of an orbit/clock correction stream may switch with his service at any time from a duty to a backup server installation. This shall be noted in the SSR stream through a change of the Issue Of Data (IOD SSR) parameter. The PPP option in BNC will immediately reset all ambiguities in such a situation.</p>
    3306 <p>PPP options are specified in BNC through the following four panels:</p>
    3307 <ul class="simple">
     2979</p>
     2980
     2981<p>
     2982The provider of an orbit/clock correction stream may switch with his service at any time from a duty to a backup server installation. This shall be noted in the SSR stream through a change of the Issue Of Data (IOD SSR) parameter. The PPP option in BNC will immediately reset all ambiguities in such a situation.
     2983</p>
     2984
     2985<p>
     2986PPP options are specified in BNC through the following four panels.
     2987<ul>
    33082988<li>PPP (1): Input and output, specifying real-time or post processing mode and associated data sources</li>
    33092989<li>PPP (2): Processed stations, specifying sigmas and noise of a priori coordinates and NMEA stream output</li>
    … …  
    33112991<li>PPP (4): Plots, specifying visualization through time series and track maps</li>
    33122992</ul>
    3313 <div class="section" id="ppp-1-input-and-output">
    3314 <span id="index-26"></span><h4>PPP (1): Input and Output<a class="headerlink" href="#ppp-1-input-and-output" title="Permalink to this headline">¶</a></h4>
    3315 <p>This panel provides options for specifying the input and output streams and files required by BNC for real-time or post processing PPP, see <a class="reference internal" href="#fig-22"><span class="std std-numref">Fig. 24</span></a> for an example screenshot.</p>
    3316 <div class="figure" id="id45">
    3317 <span id="fig-22"></span><a class="reference internal image-reference" href="_images/fig_22.png"><img alt="_images/fig_22.png" src="_images/fig_22.png" style="width: 1332.0px; height: 934.0px;" /></a>
    3318 <p class="caption"><span class="caption-number">Fig. 24 </span><span class="caption-text">Real-time Precise Point Positioning with BNC, PPP Panel 1</span></p>
    3319 </div>
    3320 <div class="section" id="data-source-optional">
    3321 <h5>Data Source - optional<a class="headerlink" href="#data-source-optional" title="Permalink to this headline">¶</a></h5>
    3322 <p>Choose between input from &#8216;Real-time Streams&#8217; or &#8216;RINEX Files&#8217; for PPP with BNC in real-time or post processing mode.</p>
    3323 <div class="section" id="real-time-streams">
    3324 <h6>Real-time Streams<a class="headerlink" href="#real-time-streams" title="Permalink to this headline">¶</a></h6>
    3325 <p>When choosing &#8216;Real-time Streams&#8217; BNC will do PPP solutions in real-time. This requires pulling GNSS observation streams, Broadcast Ephemeris messages and a stream containing corrections to Broadcast Ephemeris. Streams must come in RTCM Version 3 format. If you do not pull Broadcast Corrections, BNC will switch with its solution to &#8216;Single Point Positioning&#8217; (SPP) mode.</p>
    3326 </div>
    3327 <div class="section" id="rinex-files">
    3328 <h6>RINEX Files<a class="headerlink" href="#rinex-files" title="Permalink to this headline">¶</a></h6>
    3329 <p>This input mode allows to specify RINEX Observation, RINEX Navigation and Broadcast Correction files. BNC accepts RINEX Version 2 as well as RINEX Version 3 Observation or Navigation file formats. Files carrying Broadcast Corrections must have the format produced by BNC through the &#8216;Broadcast Corrections&#8217; panel. Specifying only a RINEX Observation and a RINEX Navigation file and no Broadcast Correction file leads BNC to a &#8216;Single Point Positioning&#8217; (SPP) solution.</p>
    3330 </div>
    3331 <div class="section" id="debugging">
    3332 <h6>Debugging<a class="headerlink" href="#debugging" title="Permalink to this headline">¶</a></h6>
    3333 <p>Note that for debugging purposes, BNC&#8217;s real-time PPP functionality can also be used offline. Apply the &#8216;File Mode&#8217; &#8216;Command Line&#8217; option for that to read a file containing synchronized observations, orbit and clock correctors, and Broadcast Ephemeris. Example:</p>
    3334 <div class="highlight-bat"><div class="highlight"><pre>bnc.exe --conf c:\temp\PPP.bnc --file c:\temp\RAW
    3335 </pre></div>
    3336 </div>
    3337 <p>Such a file (here: &#8216;RAW&#8217;) must be saved beforehand using BNC&#8217;s &#8216;Raw output file&#8217; option.</p>
    3338 </div>
    3339 </div>
    3340 <div class="section" id="rinex-observation-file-mandatory-if-data-source-is-set-to-rinex-files">
    3341 <h5>RINEX Observation File - mandatory if &#8216;Data source&#8217; is set to &#8216;RINEX Files&#8217;<a class="headerlink" href="#rinex-observation-file-mandatory-if-data-source-is-set-to-rinex-files" title="Permalink to this headline">¶</a></h5>
    3342 <p>Specify a RINEX Observation file. The file format can be RINEX Version 2 or RINEX Version 3.</p>
    3343 </div>
    3344 <div class="section" id="rinex-navigation-file-mandatory-if-data-source-is-set-to-rinex-files">
    3345 <h5>RINEX Navigation File - mandatory if &#8216;Data source&#8217; is set to &#8216;RINEX Files&#8217;<a class="headerlink" href="#rinex-navigation-file-mandatory-if-data-source-is-set-to-rinex-files" title="Permalink to this headline">¶</a></h5>
    3346 <p>Specify a RINEX Navigation file. The file format can be RINEX Version 2 or RINEX Version 3.</p>
    3347 </div>
    3348 <div class="section" id="corrections-stream-optional-if-data-source-is-set-to-real-time-streams">
    3349 <h5>Corrections Stream - optional if &#8216;Data source&#8217; is set to &#8216;Real-Time Streams&#8217;<a class="headerlink" href="#corrections-stream-optional-if-data-source-is-set-to-real-time-streams" title="Permalink to this headline">¶</a></h5>
    3350 <p>Specify a Broadcast &#8216;Corrections stream&#8217; from the list of selected &#8216;Streams&#8217; you are pulling if you want BNC to correct your satellite ephemeris accordingly. Note that the stream&#8217;s orbit and clock corrections must refer to the satellite Antenna Phase Center (APC). Streams providing such corrections are made available e.g. through the International GNSS Service (IGS) and listed on <a class="reference external" href="http://igs.bkg.bund.de/ntrip/orbits">http://igs.bkg.bund.de/ntrip/orbits</a>. The stream format must be RTCM Version 3 containing so-called SSR messages. Streams &#8216;IGS03&#8217; and &#8216;CLK11&#8217; supporting GPS plus GLONASS are examples. If you do not specify a &#8216;Corrections stream&#8217;, BNC will fall back from a PPP solution to a Single Point Positioning (SPP) solution.</p>
    3351 </div>
    3352 <div class="section" id="corrections-file-optional-if-data-source-is-set-to-rinex-files">
    3353 <h5>Corrections File - optional if &#8216;Data source&#8217; is set to &#8216;RINEX Files&#8217;<a class="headerlink" href="#corrections-file-optional-if-data-source-is-set-to-rinex-files" title="Permalink to this headline">¶</a></h5>
    3354 <p>Specify a Broadcast &#8216;Corrections file&#8217; as saved beforehand using BNC. The file content is basically the ASCII representation of a RTCM Version 3 Broadcast Correction (SSR) stream. If you do not specify a &#8216;Correction file&#8217;, BNC will fall back from a PPP solution to a Single Point Positioning (SPP) solution.</p>
    3355 </div>
    3356 <div class="section" id="antex-file-optional">
    3357 <h5>ANTEX File - optional<a class="headerlink" href="#antex-file-optional" title="Permalink to this headline">¶</a></h5>
    3358 <p>IGS provides a file containing absolute phase center corrections for GNSS satellite and receiver antennas in ANTEX format. Entering the full path to such an ANTEX file is required for correcting observations in PPP for Antenna Phase Center offsets and variations. Note that for applying such corrections you need to specify the receiver&#8217;s antenna name and radome in BNC&#8217;s &#8216;Coordinates file&#8217;.</p>
    3359 <p>Default value for &#8216;ANTEX file&#8217; is an empty option field, meaning that you do not want to correct observations for Antenna Phase Center offsets and variations.</p>
    3360 </div>
    3361 <div class="section" id="coordinates-file-optional">
    3362 <h5>Coordinates File - optional<a class="headerlink" href="#coordinates-file-optional" title="Permalink to this headline">¶</a></h5>
    3363 <p>Enter the full path to an ASCII file which specifies all observation streams or files from stationary or mobile receivers you possibly may want to process. Specifying a &#8216;Coordinates file&#8217; is optional. If it exists, it should contain one record per stream or file with the following parameters separated by blank characters:</p>
    3364 <ul>
    3365 <li><p class="first">Input data source, to be specified either through</p>
    3366 <ul class="simple">
    3367 <li>the &#8216;Mountpoint&#8217; of an RTCM stream (when in real-time PPP mode), or</li>
     2993</p>
     2994
     2995<p><h4>2.13.1 <a name="pppInp">PPP (1): Input and Output</h4></p>
     2996<p>
     2997This panel provides options for specifying the input and output streams and files required by BNC for real-time or post processing PPP.
     2998</p>
     2999
     3000<p><img src="IMG/screenshot03.png"/></p>
     3001<p><u>Figure 22:</u> Real-time Precise Point Positioning with BNC, PPP Panel 1</p>
     3002
     3003<p><h4>2.13.1.1 <a name="pppdatasource">Data Source - optional</h4></p>
     3004<p>
     3005Choose between input from 'Real-time Streams' or 'RINEX Files' for PPP with BNC in real-time or post processing mode.
     3006</p>
     3007
     3008<p>
     3009<u>Real-time Streams</u><br>
     3010When choosing 'Real-time Streams' BNC will do PPP solutions in real-time. This requires pulling GNSS observation streams, Broadcast Ephemeris messages and a stream containing corrections to Broadcast Ephemeris. Streams must come in RTCM Version 2 or RTCM Version 3 format.
     3011</p>
     3012<p>
     3013If you do not pull Broadcast Corrections, BNC will switch with its solution to 'Single Point Positioning' (SPP) mode.
     3014</p>
     3015
     3016<p>
     3017<u>RINEX Files</u><br>
     3018This input mode allows to specify RINEX Observation, RINEX Navigation and Broadcast Correction files. BNC accepts RINEX Version 2 as well as RINEX Version 3 Observation or Navigation file formats. Files carrying Broadcast Corrections must have the format produced by BNC through the 'Broadcast Corrections' panel.
     3019</p>
     3020<p>
     3021Specifying only a RINEX Observation and a RINEX Navigation file and no Broadcast Correction file leads BNC to a 'Single Point Positioning' (SPP) solution.
     3022<p>
     3023<u>Debugging</u><br>
     3024Note that for debugging purposes, BNC's real-time PPP functionality can also be used offline. Apply the 'File Mode' 'Command Line' option for that to read a file containing synchronized observations, orbit and clock correctors, and Broadcast Ephemeris. Example:
     3025<pre>
     3026   bnc.exe --conf c:\temp\PPP.bnc --file c:\temp\RAW
     3027</pre>
     3028Such a file (here: 'RAW') must be saved beforehand using BNC's 'Raw output file' option.
     3029</li>
     3030</ul>
     3031</p>
     3032
     3033<p><h4>2.13.1.2 <a name="ppprnxobs">RINEX Observation File - mandatory if 'Data source' is set to 'RINEX Files'</h4></p>
     3034<p>
     3035Specify a RINEX Observation file. The file format can be RINEX Version 2 or RINEX Version 3.
     3036</p>
     3037
     3038<p><h4>2.13.1.3 <a name="ppprnxnav">RINEX Navigation File - mandatory if 'Data source' is set to 'RINEX Files'</h4></p>
     3039<p>
     3040Specify a RINEX Navigation file. The file format can be RINEX Version 2 or RINEX Version 3.
     3041</p>
     3042
     3043<p><h4>2.13.1.4 <a name="pppcorrstream">Corrections Stream - optional if 'Data source' is set to 'Real-Time Streams'</h4></p>
     3044<p>
     3045Specify a Broadcast 'Corrections stream' from the list of selected 'Streams' you are pulling if you want BNC to correct your satellite ephemeris accordingly. Note that the stream's orbit and clock corrections must refer to the satellite Antenna Phase Center (APC). Streams providing such corrections are made available e.g. through the International GNSS Service (IGS) and listed on <u>http://igs.bkg.bund.de/ntrip/orbits</u>. The stream format must be RTCM Version 3 containing so-called SSR messages. Streams 'IGS03' and 'CLK11' supporting GPS plus GLONASS are examples.
     3046</p>
     3047<p>
     3048If you do not specify a 'Corrections stream', BNC will fall back from a PPP solution to a Single Point Positioning (SPP) solution.
     3049</p>
     3050
     3051<p><h4>2.13.1.5 <a name="pppcorrfile">Corrections File - optional if 'Data source' is set to 'RINEX Files'</h4></p>
     3052<p>
     3053Specify a Broadcast 'Corrections file' as saved beforehand using BNC. The file content is basically the ASCII representation of a RTCM Version 3 Broadcast Correction (SSR) stream.
     3054</p>
     3055<p>
     3056If you do not specify a 'Correction file', BNC will fall back from a PPP solution to a Single Point Positioning (SPP) solution.
     3057</p>
     3058
     3059<p><h4>2.13.1.6 <a name="pppantexfile">ANTEX File - optional</h4></p>
     3060<p>
     3061IGS provides a file containing absolute phase center corrections for GNSS satellite and receiver antennas in ANTEX format. Entering the full path to such an ANTEX file is required for correcting observations in PPP for Antenna Phase Center offsets and variations. Note that for applying such corrections you need to specify the receiver's antenna name and radome in BNC's 'Coordinates file'.
     3062</p>
     3063<p>
     3064Default value for 'ANTEX file' is an empty option field, meaning that you do not want to correct observations for Antenna Phase Center offsets and variations.
     3065</p>
     3066
     3067<p><h4>2.13.1.7 <a name="pppmarkcoor">Coordinates File - optional </h4></p>
     3068<p>
     3069Enter the full path to an ASCII file which specifies all observation streams or files from stationary or mobile receivers you possibly may want to process. Specifying a 'Coordinates file' is optional. If it exists, it should contain one record per stream or file with the following parameters separated by blank characters:
     3070</p>
     3071<p>
     3072<ul>
     3073<li>Input data source, to be specified either through
     3074<ul>
     3075<li>the 'Mountpoint' of an RTCM stream (when in real-time PPP mode), or
     3076</li>
    33683077<li>the first four characters of the RINEX observations file (when in post processing PPP mode).</li>
    33693078</ul>
    3370 <p>Having at least this first parameter in each record is mandatory.</p>
     3079Having at least this first parameter in each record is mandatory.</li><br>
     3080<li>Only for static observations from a stationary receiver:<br>Approximate a priori XYZ coordinate [m] of the station's marker; specify '0.0 0.0 0.0' if unknown or when observations come from a mobile receiver.</li><br>
     3081<li>Nort, East and Up component [m] of antenna eccentricity which is the difference between Antenna Reference Point (ARP) and a nearby marker position; when specifying the antenna eccentricity BNC will produce coordinates referring to the marker position and not referring to ARP; specify '0.0 0.0 0.0' if eccentricity is unknown or the ARP itself is understood as the marker.</li><br>
     3082<li>Receiver's antenna name as defined in your ANTEX file (see below); Observations will be corrected for the Antenna Phase Center (APC) offsets and variations, which may result in a reduction of a few centimeters at max; the specified name must consist of 20 characters; add trailing blanks if the antenna name has less than 20 characters; examples:<br><pre>
     3083&nbsp; &nbsp;'JPSREGANT_SD_E      ' (no radome)
     3084&nbsp; &nbsp;'LEIAT504        NONE' (no radome)
     3085&nbsp; &nbsp;'LEIAR25.R3      LEIT' (radome is LEIT)</pre>
     3086Leave antenna name blank if you do not want to correct observations for APC offsets and variations or if you do not know the antenna name.</li><br>
     3087<li>
     3088Receiver type following the naming convention for IGS equipment as defined in <u>https://igscb.jpl.nasa.gov/igscb/station/general/rcvr_ant.tab</u>. Specifying the receiver type is only required when saving SINEX Troposphere files. In those files it becomes part of the 'SITE/RECEIVER' specifications, see section 'SNX TRO Directory'.
    33713089</li>
    3372 <li><p class="first">Only for static observations from a stationary receiver: Approximate a priori XYZ coordinate [m] of the station&#8217;s marker; specify &#8216;0.0 0.0 0.0&#8217; if unknown or when observations come from a mobile receiver.</p>
    3373 </li>
    3374 <li><p class="first">Nort, East and Up component [m] of antenna eccentricity which is the difference between Antenna Reference Point (ARP) and a nearby marker position; when specifying the antenna eccentricity BNC will produce coordinates referring to the marker position and not referring to ARP; specify &#8216;0.0 0.0 0.0&#8217; if eccentricity is unknown or the ARP itself is understood as the marker.</p>
    3375 </li>
    3376 </ul>
    3377 <p>Receiver&#8217;s antenna name as defined in your ANTEX file (see below); Observations will be corrected for the Antenna Phase Center (APC) offsets and variations, which may result in a reduction of a few centimeters at max; the specified name must consist of 20 characters; add trailing blanks if the antenna name has less than 20 characters; examples:</p>
    3378 <div class="highlight-console"><div class="highlight"><pre><span class="go">&#39;JPSREGANT_SD_E      &#39; (no radome)</span>
    3379 <span class="go">&#39;LEIAT504        NONE&#39; (no radome)</span>
    3380 <span class="go">&#39;LEIAR25.R3      LEIT&#39; (radome is LEIT)</span>
    3381 </pre></div>
    3382 </div>
    3383 <p>Leave antenna name blank if you do not want to correct observations for APC offsets and variations or if you do not know the antenna name.
    3384 * Receiver type following the naming convention for IGS equipment as defined in <a class="reference external" href="https://igscb.jpl.nasa.gov/igscb/station/general/rcvr_ant.tab">https://igscb.jpl.nasa.gov/igscb/station/general/rcvr_ant.tab</a>. Specifying the receiver type is only required when saving SINEX Troposphere files. In those files it becomes part of the &#8216;SITE/RECEIVER&#8217; specifications, see section &#8216;SNX TRO Directory&#8217;.</p>
    3385 <p>Records in the &#8216;Coordinates&#8217; file with exclamation mark &#8216;!&#8217; in the first column or blank records will be understood as comment lines and ignored.</p>
    3386 <p>The following is the content of an example &#8216;Coordinates file&#8217;. Here each record describes the mountpoint of a stream available from the global IGS real-time reference station network. A priori coordinates are followed by North/East/Up eccentricity components of the ARP followed by the antenna name, radome and the receiver name in use.</p>
    3387 <div class="highlight-console"><div class="highlight"><pre><span class="go">!</span>
    3388 <span class="go">! Station    X[m]          Y[m]          Z[m] North[m]  EAST[m]  UP[m]  Antenna        Radom Receiver</span>
    3389 <span class="go">! -------------------------------------------------------------------------------- -------------------</span>
    3390 <span class="go">ADIS0  4913652.6612  3945922.7678   995383.4359  0.0000  0.0000  0.0010 TRM29659.00     NONE JPS LEGACY</span>
    3391 <span class="go">ALIC0 -4052052.5593  4212836.0078 -2545104.8289  0.0000  0.0000  0.0015 LEIAR25.R3      NONE LEICA GRX1200GGPRO</span>
    3392 <span class="go">BELF0  3685257.8823  -382908.8992  5174311.1067  0.0000  0.0000  0.0000 LEIAT504GG      LEIS LEICA GRX1200GGPRO</span>
    3393 <span class="go">BNDY0 -5125977.4106  2688801.2966 -2669890.4345  0.0000  0.0000  0.0000 ASH701945E_M    NONE TRIMBLE NETR5</span>
    3394 <span class="go">BRAZ0  4115014.0678 -4550641.6105 -1741443.8244  0.0000  0.0000  0.0080 LEIAR10         NONE LEICA GR25</span>
    3395 <span class="go">CTWN0  5023564.4285  1677795.7211 -3542025.8392  0.0000  0.0000  0.0000 ASH701941.B     NONE TRIMBLE NETR5</span>
    3396 <span class="go">CUT07 -2364337.4408  4870285.6055 -3360809.6280  0.0000  0.0000  0.0000 TRM59800.00     SCIS TRIMBLE NETR9</span>
    3397 <span class="go">GANP0  3929181.3480  1455236.9105  4793653.9880  0.0000  0.0000  0.3830 TRM55971.00     NONE TRIMBLE NETR9</span>
    3398 <span class="go">HLFX0  2018905.6037 -4069070.5095  4462415.4771  0.0000  0.0000  0.1000 TPSCR.G3        NONE TPS NET-G3A</span>
    3399 <span class="go">LHAZ0  -106941.9272  5549269.8041  3139215.1564  0.0000  0.0000  0.1330 ASH701941.B     NONE TPS E_GGD</span>
    3400 <span class="go">LMMF7  2993387.3587 -5399363.8649  1596748.0983  0.0000  0.0000  0.0000 TRM57971.00     NONE TRIMBLE NETR9</span>
    3401 <span class="go">MAO07 -5466067.0979 -2404333.0198  2242123.1929  0.0000  0.0000  0.0000 LEIAR25.R3      LEIT JAVAD TRE_G3TH DELTA</span>
    3402 <span class="go">NICO0  4359415.5252  2874117.1872  3650777.9614  0.0000  0.0000  0.0650 LEIAR25.R4      LEIT LEICA GR25</span>
    3403 <span class="go">NKLG7  6287385.7320  1071574.7606    39133.1088 -0.0015 -0.0025  3.0430 TRM59800.00     SCIS TRIMBLE NETR9</span>
    3404 <span class="go">NURK7  5516756.5103  3196624.9684  -215027.1315  0.0000  0.0000  0.1300 TPSCR3_GGD      NONE JAVAD TRE_G3TH DELTA</span>
    3405 <span class="go">ONSA0  3370658.3928   711877.2903  5349787.0603  0.0000  0.0000  0.9950 AOAD/M_B        OSOD JAVAD TRE_G3TH DELTA</span>
    3406 <span class="go">PDEL0  4551595.9072 -2186892.9495  3883410.9685  0.0000  0.0000  0.0000 LEIAT504GG      NONE LEICA GRX1200GGPRO</span>
    3407 <span class="go">RCMN0  5101056.6270  3829074.4206  -135016.1589  0.0000  0.0000  0.0000 LEIAT504GG      LEIS LEICA GRX1200GGPRO</span>
    3408 <span class="go">REUN0  3364098.9668  4907944.6121 -2293466.7379  0.0000  0.0000  0.0610 TRM55971.00     NONE TRIMBLE NETR9</span>
    3409 <span class="go">REYK7  2587384.0890 -1043033.5433  5716564.1301  0.0000  0.0000  0.0570 LEIAR25.R4      LEIT LEICA GR25</span>
    3410 <span class="go">RIO27  1429907.8578 -3495354.8953 -5122698.5595  0.0000  0.0000  0.0350 ASH700936C_M    SNOW JAVAD TRE_G3TH DELTA</span>
    3411 <span class="go">SMR50   927077.1096 -2195043.5597 -5896521.1344  0.0000  0.0000  0.0000 TRM41249.00     TZGD TRIMBLE NETR5</span>
    3412 <span class="go">SUWN0 -3062023.1604  4055447.8946  3841818.1684  0.0000  0.0000  1.5700 TRM29659.00     DOME TRIMBLE NETR9</span>
    3413 <span class="go">TASH7  1695944.9208  4487138.6220  4190140.7391  0.0000  0.0000  0.1206 JAV_RINGANT_G3T NONE JAVAD TRE_G3TH DELTA</span>
    3414 <span class="go">UFPR0  3763751.6731 -4365113.9039 -2724404.5331  0.0000  0.0000  0.1000 TRM55971.00     NONE TRIMBLE NETR5</span>
    3415 <span class="go">UNB30  1761287.9724 -4078238.5659  4561417.8448  0.0000  0.0000  0.3145 TRM57971.00     NONE TRIMBLE NETR9</span>
    3416 <span class="go">WIND7  5633708.8016  1732017.9297 -2433985.5795  0.0000  0.0000  0.0460 ASH700936C_M    SNOW JAVAD TRE_G3TH DELTA</span>
    3417 <span class="go">WTZR0  4075580.3797   931853.9767  4801568.2360  0.0000  0.0000  0.0710 LEIAR25.R3      LEIT LEICA GR25</span>
    3418 <span class="go">WUH27 -2267749.9761  5009154.5504  3221294.4429  0.0000  0.0000  0.1206 JAV_RINGANT_G3T NONE JAVAD TRE_G3TH DELTA</span>
    3419 <span class="go">YELL7 -1224452.8796 -2689216.1863  5633638.2832  0.0000  0.0000  0.1000 AOAD/M_T        NONE JAVAD TRE_G3TH DELTA</span>
    3420 </pre></div>
    3421 </div>
    3422 <p>Note again that the only mandatory parameters in this file are the &#8216;Station&#8217; parameters in the first column, each standing for an observation stream&#8217;s mountpoint or the 4-character station ID of a RINEX filename. The following shows further valid examples for records of a &#8216;Coordinates file&#8217;.</p>
    3423 <div class="highlight-console"><div class="highlight"><pre><span class="go">!</span>
    3424 <span class="go">! Station     X[m]         Y[m]          Z[m]    N[m]   E[m]   U[m]  Antenna        Radom Receiver</span>
    3425 <span class="go">! --------------------------------------------------------------------------------- ----------------</span>
    3426 <span class="go">WTZR0   4075580.3797  931853.9767  4801568.2360  0.000  0.000  0.071 LEIAR25.R3      LEIT LEICA GR25</span>
    3427 <span class="go">CUT07  -2364337.4408 4870285.6055 -3360809.6280  0.000  0.000  0.000 TRM59800.00     SCIS</span>
    3428 <span class="go">FFMJ1   4053455.7384  617729.8393  4869395.8214  0.000  0.000  0.045</span>
    3429 <span class="go">TITZ1   3993780.4501  450206.8969  4936136.9886</span>
    3430 <span class="go">WARN</span>
    3431 <span class="go">SASS1         0.0          0.0           0.0     0.000  0.000  0.031 TPSCR3_GGD      CONE TRIMBLE NETR5</span>
    3432 </pre></div>
    3433 </div>
    3434 <p>In this file</p>
    3435 <ul class="simple">
    3436 <li>Record &#8216;WTZR0&#8217; describes a stream from a stationary receiver with known a priori marker coordinate, antenna eccentricity, antenna and radome type and receiver type.</li>
    3437 <li>Record &#8216;CUT07&#8217; describes a stream from a stationary receiver with known a priori marker coordinate, antenna eccentricity and antenna and radome type. The receiver type is unknown.</li>
    3438 <li>Record &#8216;FFMJ1&#8217; describes a stream from a stationary receiver with known a priori marker coordinate and antenna eccentricity but unknown antenna, radome and receiver type.</li>
    3439 <li>Record &#8216;TITZ1&#8217; describes a stream coming from a stationary receiver where an a priori marker coordinate is known but antenna eccentricity, name and radome and receiver type are unknown.</li>
    3440 <li>The 4-character station ID &#8216;WARN&#8217; indicates that a RINEX observations file for post processing PPP is available for station &#8216;WARN&#8217; but an a priori marker coordinate as well as antenna eccentricity, name and radome are unknown.</li>
    3441 <li>Record &#8216;SASS1&#8217; stands for a mountpoint where the stream comes from a mobile rover receiver. Hence an a priori coordinate is unknown although antenna eccentricity, name and radome and receiver type are known.</li>
    3442 </ul>
    3443 </div>
    3444 <div class="section" id="id10">
    3445 <h5>Version 3 Filenames - optional<a class="headerlink" href="#id10" title="Permalink to this headline">¶</a></h5>
    3446 <p>Tick &#8216;Version 3 filenames&#8217; to let BNC create so-called extended filenames for PPP logfiles, NMEA files and SINEX Troposphere files to follow the RINEX Version 3 standard, see section &#8216;RINEX Filenames&#8217; for details. Default is an empty check box, meaning to create filenames following the RINEX Version 2 standard. The file content is not affected by this option. It only concerns the filename notation. <a class="reference internal" href="#tab-rinex2-filenames"><span class="std std-numref">Table 8</span></a> and <a class="reference internal" href="#tab-rinex3-filenames"><span class="std std-numref">Table 9</span></a> give filename examples for RINEX version 2 and 3, respectively.</p>
    3447 <table border="1" class="docutils" id="id46">
    3448 <span id="tab-rinex2-filenames"></span><caption><span class="caption-number">Table 8 </span><span class="caption-text">File name examples vor RINEX version 2.</span><a class="headerlink" href="#id46" title="Permalink to this table">¶</a></caption>
    3449 <colgroup>
    3450 <col width="29%" />
    3451 <col width="71%" />
    3452 </colgroup>
    3453 <thead valign="bottom">
    3454 <tr class="row-odd"><th class="head"><strong>Filename</strong></th>
    3455 <th class="head"><strong>Description</strong></th>
    3456 </tr>
    3457 </thead>
    3458 <tbody valign="top">
    3459 <tr class="row-even"><td>CUT018671.nmea</td>
    3460 <td>NMEA filename, suffix &#8216;nmea&#8217;</td>
    3461 </tr>
    3462 <tr class="row-odd"><td>CUT018671.ppp</td>
    3463 <td>PPP logfile name, suffix &#8216;ppp&#8217;</td>
    3464 </tr>
    3465 <tr class="row-even"><td>CUT018671J30.tro</td>
    3466 <td>SINEX Troposphere filename, suffix &#8216;tro&#8217;</td>
    3467 </tr>
    3468 </tbody>
     3090</ul>
     3091</p>
     3092<p>
     3093Records in the 'Coordinates' file with exclamation mark '!' in the first column or blank records will be understood as comment lines and ignored.
     3094</p>
     3095<p>
     3096The following is the content of an example 'Coordinates file'. Here each record describes the mountpoint of a stream available from the global IGS real-time reference station network. A priori coordinates are followed by North/East/Up eccentricity components of the ARP
     3097followed by the antenna name and radome in use.
     3098</p>
     3099<pre>
     3100!
     3101! Station    X[m]          Y[m]          Z[m] North[m]  EAST[m]  UP[m]  Antenna--------Radom Receiver
     3102! -----------------------------------------------------------------------------------------------------
     3103ADIS0  4913652.6612  3945922.7678   995383.4359  0.0000  0.0000  0.0010 TRM29659.00     NONE JPS LEGACY
     3104ALIC0 -4052052.5593  4212836.0078 -2545104.8289  0.0000  0.0000  0.0015 LEIAR25.R3      NONE LEICA GRX1200GGPRO
     3105BELF0  3685257.8823  -382908.8992  5174311.1067  0.0000  0.0000  0.0000 LEIAT504GG      LEIS LEICA GRX1200GGPRO
     3106BNDY0 -5125977.4106  2688801.2966 -2669890.4345  0.0000  0.0000  0.0000 ASH701945E_M    NONE TRIMBLE NETR5
     3107BRAZ0  4115014.0678 -4550641.6105 -1741443.8244  0.0000  0.0000  0.0080 LEIAR10         NONE LEICA GR25
     3108CTWN0  5023564.4285  1677795.7211 -3542025.8392  0.0000  0.0000  0.0000 ASH701941.B     NONE TRIMBLE NETR5
     3109CUT07 -2364337.4408  4870285.6055 -3360809.6280  0.0000  0.0000  0.0000 TRM59800.00     SCIS TRIMBLE NETR9
     3110GANP0  3929181.3480  1455236.9105  4793653.9880  0.0000  0.0000  0.3830 TRM55971.00     NONE TRIMBLE NETR9
     3111HLFX0  2018905.6037 -4069070.5095  4462415.4771  0.0000  0.0000  0.1000 TPSCR.G3        NONE TPS NET-G3A
     3112LHAZ0  -106941.9272  5549269.8041  3139215.1564  0.0000  0.0000  0.1330 ASH701941.B     NONE TPS E_GGD
     3113LMMF7  2993387.3587 -5399363.8649  1596748.0983  0.0000  0.0000  0.0000 TRM57971.00     NONE TRIMBLE NETR9
     3114MAO07 -5466067.0979 -2404333.0198  2242123.1929  0.0000  0.0000  0.0000 LEIAR25.R3      LEIT JAVAD TRE_G3TH DELTA
     3115NICO0  4359415.5252  2874117.1872  3650777.9614  0.0000  0.0000  0.0650 LEIAR25.R4      LEIT LEICA GR25
     3116NKLG7  6287385.7320  1071574.7606    39133.1088 -0.0015 -0.0025  3.0430 TRM59800.00     SCIS TRIMBLE NETR9
     3117NURK7  5516756.5103  3196624.9684  -215027.1315  0.0000  0.0000  0.1300 TPSCR3_GGD      NONE JAVAD TRE_G3TH DELTA
     3118ONSA0  3370658.3928   711877.2903  5349787.0603  0.0000  0.0000  0.9950 AOAD/M_B        OSOD JAVAD TRE_G3TH DELTA
     3119PDEL0  4551595.9072 -2186892.9495  3883410.9685  0.0000  0.0000  0.0000 LEIAT504GG      NONE LEICA GRX1200GGPRO
     3120RCMN0  5101056.6270  3829074.4206  -135016.1589  0.0000  0.0000  0.0000 LEIAT504GG      LEIS LEICA GRX1200GGPRO
     3121REUN0  3364098.9668  4907944.6121 -2293466.7379  0.0000  0.0000  0.0610 TRM55971.00     NONE TRIMBLE NETR9
     3122REYK7  2587384.0890 -1043033.5433  5716564.1301  0.0000  0.0000  0.0570 LEIAR25.R4      LEIT LEICA GR25
     3123RIO27  1429907.8578 -3495354.8953 -5122698.5595  0.0000  0.0000  0.0350 ASH700936C_M    SNOW JAVAD TRE_G3TH DELTA
     3124SMR50   927077.1096 -2195043.5597 -5896521.1344  0.0000  0.0000  0.0000 TRM41249.00     TZGD TRIMBLE NETR5
     3125SUWN0 -3062023.1604  4055447.8946  3841818.1684  0.0000  0.0000  1.5700 TRM29659.00     DOME TRIMBLE NETR9
     3126TASH7  1695944.9208  4487138.6220  4190140.7391  0.0000  0.0000  0.1206 JAV_RINGANT_G3T NONE JAVAD TRE_G3TH DELTA
     3127UFPR0  3763751.6731 -4365113.9039 -2724404.5331  0.0000  0.0000  0.1000 TRM55971.00     NONE TRIMBLE NETR5
     3128UNB30  1761287.9724 -4078238.5659  4561417.8448  0.0000  0.0000  0.3145 TRM57971.00     NONE TRIMBLE NETR9
     3129WIND7  5633708.8016  1732017.9297 -2433985.5795  0.0000  0.0000  0.0460 ASH700936C_M    SNOW JAVAD TRE_G3TH DELTA
     3130WTZR0  4075580.3797   931853.9767  4801568.2360  0.0000  0.0000  0.0710 LEIAR25.R3      LEIT LEICA GR25
     3131WUH27 -2267749.9761  5009154.5504  3221294.4429  0.0000  0.0000  0.1206 JAV_RINGANT_G3T NONE JAVAD TRE_G3TH DELTA
     3132YELL7 -1224452.8796 -2689216.1863  5633638.2832  0.0000  0.0000  0.1000 AOAD/M_T        NONE JAVAD TRE_G3TH DELTA
     3133</pre>
     3134<p>
     3135Note again that the only mandatory parameters in this file are the 'Station' parameters in the first column, each standing for an observation stream's mountpoint or the 4-character station ID of a RINEX filename. The following shows further valid examples for records of a 'Coordinates file'.
     3136</p>
     3137
     3138<pre>
     3139!
     3140! Station     X[m]         Y[m]          Z[m]    N[m]   E[m]   U[m]  Antenna--------Radom Receiver
     3141! --------------------------------------------------------------------------------------------------
     3142WTZR0   4075580.3797  931853.9767  4801568.2360  0.000  0.000  0.071 LEIAR25.R3      LEIT LEICA GR25
     3143CUT07  -2364337.4408 4870285.6055 -3360809.6280  0.000  0.000  0.000 TRM59800.00     SCIS
     3144FFMJ1   4053455.7384  617729.8393  4869395.8214  0.000  0.000  0.045
     3145TITZ1   3993780.4501  450206.8969  4936136.9886
     3146WARN
     3147SASS1         0.0          0.0           0.0     0.000  0.000  0.031 TPSCR3_GGD      CONE TRIMBLE NETR5
     3148</pre>
     3149
     3150<p>
     3151In this file
     3152</p>
     3153<ul>
     3154<li> Record 'WTZR0' describes a stream from a stationary receiver with known a priori marker coordinate, antenna eccentricity, antenna and radome type and receiver type.</li>
     3155<li> Record 'CUT07' describes a stream from a stationary receiver with known a priori marker coordinate, antenna eccentricity and antenna and radome type. The receiver type is unknown.</li>
     3156<li> Record 'FFMJ1' describes a stream from a stationary receiver with known a priori marker coordinate and antenna eccentricity but unknown antenna, radome and receiver type.</li>
     3157<li> Record 'TITZ1' describes a stream coming from a stationary receiver where an a priori marker coordinate is known but antenna eccentricity, name and radome and receiver type are unknown.</li>
     3158<li>The 4-character station ID 'WARN' indicates that a RINEX observations file for post processing PPP is available for station 'WARN' but an a priori marker coordinate as well as antenna eccentricity, name and radome are unknown.</li>
     3159<li>Record 'SASS1' stands for a mountpoint where the stream comes from a mobile rover receiver. Hence an a priori coordinate is unknown although antenna eccentricity, name and radome and receiver type are known.</li>
     3160</ul>
     3161</p>
     3162
     3163<p><h4>2.13.1.8 <a name="pppv3filename">Version 3 Filenames - optional</h4></p>
     3164<p>
     3165Tick 'Version 3 filenames' to let BNC create so-called extended filenames for PPP logfiles, NMEA files and SINEX Troposphere files to follow the RINEX Version 3 standard, see section 'RINEX Filenames' for details.
     3166</p>
     3167<p>
     3168Default is an empty check box, meaning to create filenames following the RINEX Version 2 standard. The file content is not affected by this option. It only concerns the filename notation.
     3169</p>
     3170<p>
     3171The following are examples for Version 2 filenames:
     3172<p>
     3173</p>
     3174<table>
     3175<tr><td>&nbsp; CUT018671.nmea</td><td>&nbsp; &nbsp; NMEA filename, suffix 'nmea'</td></tr>
     3176<tr><td>&nbsp; CUT018671.ppp</td><td>&nbsp; &nbsp; PPP logfile name, suffix 'ppp'</td></tr>
     3177<tr><td>&nbsp; CUT018671J30.tro</td><td>&nbsp; &nbsp; SINEX Troposphere filename, suffix 'tro'</td></tr>
    34693178</table>
    3470 <table border="1" class="docutils" id="id47">
    3471 <span id="tab-rinex3-filenames"></span><caption><span class="caption-number">Table 9 </span><span class="caption-text">File name examples vor RINEX version 3.</span><a class="headerlink" href="#id47" title="Permalink to this table">¶</a></caption>
    3472 <colgroup>
    3473 <col width="47%" />
    3474 <col width="53%" />
    3475 </colgroup>
    3476 <thead valign="bottom">
    3477 <tr class="row-odd"><th class="head"><strong>Filename</strong></th>
    3478 <th class="head"><strong>Description</strong></th>
    3479 </tr>
    3480 </thead>
    3481 <tbody valign="top">
    3482 <tr class="row-even"><td>CUT000AUS_U_20152920000_01D_01S.nmea</td>
    3483 <td>NMEA filename, suffix &#8216;nmea&#8217;</td>
    3484 </tr>
    3485 <tr class="row-odd"><td>CUT000AUS_U_20152920000_01D_01S.ppp</td>
    3486 <td>PPP logfile name, suffix &#8216;ppp&#8217;</td>
    3487 </tr>
    3488 <tr class="row-even"><td>CUT000AUS_U_20152920945_15M_01S.tra</td>
    3489 <td>SINEX Troposphere filename, suffix &#8216;tra&#8217;</td>
    3490 </tr>
    3491 </tbody>
     3179</p>
     3180<p>
     3181The following are examples for Version 3 filenames:<br>
     3182</p>
     3183<table>
     3184<tr><td>&nbsp; CUT000AUS_U_20152920000_01D_01S.nmea</td><td>&nbsp; &nbsp; NMEA filename, suffix 'nmea'</td></tr>
     3185<tr><td>&nbsp; CUT000AUS_U_20152920000_01D_01S.ppp</td><td>&nbsp; &nbsp; PPP logfile name, suffix 'ppp'</td></tr>
     3186<tr><td>&nbsp; CUT000AUS_U_20152920945_15M_01S.tra</td><td>&nbsp; &nbsp; SINEX Troposphere filename, suffix 'tra'</td></tr>
    34923187</table>
    3493 </div>
    3494 <div class="section" id="logfile-directory-optional">
    3495 <span id="index-27"></span><h5>Logfile Directory - optional<a class="headerlink" href="#logfile-directory-optional" title="Permalink to this headline">¶</a></h5>
    3496 <p>Essential PPP results are shown in the &#8216;Log&#8217; tab on the bottom of BNC&#8217;s main window. Depending on the processing options, the following values are presented about once per second (example):</p>
    3497 <div class="highlight-console"><div class="highlight"><pre><span class="go">...</span>
    3498 <span class="go">15-10-21 13:23:38 2015-10-21_13:23:38.000 CUT07 X = -2364337.4505 Y = 4870285.6269 Z = -3360809.6481 NEU:  -0.0046  -0.0006  +0.0306 TRP:  +2.4018  +0.1006</span>
    3499 <span class="go">15-10-21 13:23:39 2015-10-21_13:23:39.000 CUT07 X = -2364337.4468 Y = 4870285.6244 Z = -3360809.6453 NEU:  -0.0043  -0.0029  +0.0258 TRP:  +2.4018  +0.0993</span>
    3500 <span class="go">15-10-21 13:23:40 2015-10-21_13:23:40.000 CUT07 X = -2364337.4455 Y = 4870285.6215 Z = -3360809.6466 NEU:  -0.0070  -0.0027  +0.0238 TRP:  +2.4018  +0.0978</span>
    3501 <span class="go">15-10-21 13:23:41 2015-10-21_13:23:41.000 CUT07 X = -2364337.4447 Y = 4870285.6248 Z = -3360809.6445 NEU:  -0.0039  -0.0049  +0.0249 TRP:  +2.4018  +0.0962</span>
    3502 <span class="go">15-10-21 13:23:42 2015-10-21_13:23:42.000 CUT07 X = -2364337.4426 Y = 4870285.6238 Z = -3360809.6424 NEU:  -0.0031  -0.0063  +0.0223 TRP:  +2.4018  +0.0950</span>
    3503 <span class="go">15-10-21 13:23:43 2015-10-21_13:23:43.000 CUT07 X = -2364337.4453 Y = 4870285.6386 Z = -3360809.6518 NEU:  -0.0033  -0.0104  +0.0395 TRP:  +2.4018  +0.0927</span>
    3504 <span class="go">15-10-21 13:23:44 2015-10-21_13:23:44.000 CUT07 X = -2364337.4435 Y = 4870285.6354 Z = -3360809.6487 NEU:  -0.0027  -0.0106  +0.0348 TRP:  +2.4018  +0.0908</span>
    3505 <span class="go">15-10-21 13:23:45 2015-10-21_13:23:45.000 CUT07 X = -2364337.4445 Y = 4870285.6381 Z = -3360809.6532 NEU:  -0.0049  -0.0109  +0.0396 TRP:  +2.4018  +0.0884</span>
    3506 <span class="go">15-10-21 13:23:46 2015-10-21_13:23:46.000 CUT07 X = -2364337.4437 Y = 4870285.6365 Z = -3360809.6548 NEU:  -0.0073  -0.0109  +0.0389 TRP:  +2.4018  +0.0855</span>
    3507 <span class="go">15-10-21 13:23:47 2015-10-21_13:23:47.000 CUT07 X = -2364337.4498 Y = 4870285.6317 Z = -3360809.6395 NEU:  +0.0049  -0.0033  +0.0294 TRP:  +2.4018  +0.0833</span>
    3508 <span class="go">...</span>
    3509 </pre></div>
    3510 </div>
    3511 <p>Each row reports the PPP result of one epoch. It begins with a UTC time stamp (yy-mm-dd hh:mm:ss) which tells us when the result was produced. A second time stamp (yyyy-mm-dd_hh:mm:ss) describes the PPP&#8217;s epoch in &#8216;GPS Time&#8217;. It is followed by the derived XYZ position in [m], its North, East and Up displacement compared to an introduced a priori coordinate, and the estimated tropospheric delay [m] (model plus correction). If you require more information, you can specify a &#8216;Logfile directory&#8217; to save daily logfiles per station (filename suffix &#8216;ppp&#8217;) with additional processing details on disk:</p>
    3512 <div class="highlight-console"><div class="highlight"><pre><span class="go">Precise Point Positioning of Epoch 2015-10-21_13:23:47.000</span>
    3513 <span class="go">---------------------------------------------------------------</span>
    3514 <span class="go">2015-10-21_13:23:47.000 SATNUM G  9</span>
    3515 <span class="go">2015-10-21_13:23:47.000 SATNUM R  6</span>
    3516 <span class="go">2015-10-21_13:23:47.000 SATNUM E  0</span>
    3517 <span class="go">2015-10-21_13:23:47.000 SATNUM C  9</span>
    3518 <span class="go">2015-10-21_13:23:47.000 RES C01   P3    0.3201</span>
    3519 <span class="go">2015-10-21_13:23:47.000 RES C02   P3    0.3597</span>
    3520 <span class="go">2015-10-21_13:23:47.000 RES C03   P3   -0.8003</span>
    3521 <span class="go">2015-10-21_13:23:47.000 RES C04   P3    2.7684</span>
    3522 <span class="go">2015-10-21_13:23:47.000 RES C05   P3    4.9738</span>
    3523 <span class="go">2015-10-21_13:23:47.000 RES C06   P3    0.1888</span>
    3524 <span class="go">2015-10-21_13:23:47.000 RES C07   P3   -2.8624</span>
    3525 <span class="go">2015-10-21_13:23:47.000 RES C08   P3   -2.9075</span>
    3526 <span class="go">2015-10-21_13:23:47.000 RES C10   P3   -1.5682</span>
    3527 <span class="go">2015-10-21_13:23:47.000 RES G05   P3    0.3828</span>
    3528 <span class="go">2015-10-21_13:23:47.000 RES G16   P3   -3.7602</span>
    3529 <span class="go">2015-10-21_13:23:47.000 RES G18   P3    0.8424</span>
    3530 <span class="go">2015-10-21_13:23:47.000 RES G20   P3    0.4062</span>
    3531 <span class="go">2015-10-21_13:23:47.000 RES G21   P3    0.8683</span>
    3532 <span class="go">2015-10-21_13:23:47.000 RES G25   P3   -1.3367</span>
    3533 <span class="go">2015-10-21_13:23:47.000 RES G26   P3    1.4107</span>
    3534 <span class="go">2015-10-21_13:23:47.000 RES G29   P3    1.1870</span>
    3535 <span class="go">2015-10-21_13:23:47.000 RES G31   P3   -0.5605</span>
    3536 <span class="go">2015-10-21_13:23:47.000 RES R01   P3   -0.1458</span>
    3537 <span class="go">2015-10-21_13:23:47.000 RES R02   P3   -2.1184</span>
    3538 <span class="go">2015-10-21_13:23:47.000 RES R14   P3    1.8634</span>
    3539 <span class="go">2015-10-21_13:23:47.000 RES R15   P3   -1.3964</span>
    3540 <span class="go">2015-10-21_13:23:47.000 RES R18   P3    0.5517</span>
    3541 <span class="go">2015-10-21_13:23:47.000 RES R24   P3    1.5750</span>
    3542 <span class="go">2015-10-21_13:23:47.000 RES C01   L3   -0.0040</span>
    3543 <span class="go">2015-10-21_13:23:47.000 RES C02   L3    0.0070</span>
    3544 <span class="go">2015-10-21_13:23:47.000 RES C03   L3    0.0093</span>
    3545 <span class="go">2015-10-21_13:23:47.000 RES C04   L3   -0.0017</span>
    3546 <span class="go">2015-10-21_13:23:47.000 RES C05   L3   -0.0008</span>
    3547 <span class="go">2015-10-21_13:23:47.000 RES C06   L3   -0.0031</span>
    3548 <span class="go">2015-10-21_13:23:47.000 RES C07   L3   -0.0016</span>
    3549 <span class="go">2015-10-21_13:23:47.000 RES C08   L3   -0.0089</span>
    3550 <span class="go">2015-10-21_13:23:47.000 RES C10   L3    0.0051</span>
    3551 <span class="go">2015-10-21_13:23:47.000 RES G05   L3   -0.0408</span>
    3552 <span class="go">2015-10-21_13:23:47.000 RES G16   L3    0.0043</span>
    3553 <span class="go">2015-10-21_13:23:47.000 RES G18   L3    0.0017</span>
    3554 <span class="go">2015-10-21_13:23:47.000 RES G20   L3   -0.0132</span>
    3555 <span class="go">2015-10-21_13:23:47.000 RES G21   L3    0.0188</span>
    3556 <span class="go">2015-10-21_13:23:47.000 RES G25   L3   -0.0059</span>
    3557 <span class="go">2015-10-21_13:23:47.000 RES G26   L3    0.0028</span>
    3558 <span class="go">2015-10-21_13:23:47.000 RES G29   L3    0.0062</span>
    3559 <span class="go">2015-10-21_13:23:47.000 RES G31   L3    0.0012</span>
    3560 <span class="go">2015-10-21_13:23:47.000 RES R01   L3    0.0260</span>
    3561 <span class="go">2015-10-21_13:23:47.000 RES R02   L3   -0.0121</span>
    3562 <span class="go">2015-10-21_13:23:47.000 RES R14   L3    0.0055</span>
    3563 <span class="go">2015-10-21_13:23:47.000 RES R15   L3   -0.0488</span>
    3564 <span class="go">2015-10-21_13:23:47.000 RES R18   L3    0.0475</span>
    3565 <span class="go">2015-10-21_13:23:47.000 RES R24   L3    0.0103</span>
    3566 
    3567 <span class="go">2015-10-21_13:23:47.000 CLK      45386.971 +-  0.163</span>
    3568 <span class="go">2015-10-21_13:23:47.000 TRP       2.402 +0.083 +-  0.013</span>
    3569 <span class="go">2015-10-21_13:23:47.000 OFFGLO       1.766 +-  0.250</span>
    3570 <span class="go">2015-10-21_13:23:47.000 OFFGAL       0.000 +- 1000.001</span>
    3571 <span class="go">2015-10-21_13:23:47.000 OFFBDS      29.385 +-  0.218</span>
    3572 <span class="go">2015-10-21_13:23:47.000 AMB C01    239.913 +-  0.149   epo = 180</span>
    3573 <span class="go">2015-10-21_13:23:47.000 AMB C04    151.821 +-  0.149   epo = 180</span>
    3574 <span class="go">2015-10-21_13:23:47.000 AMB C05    137.814 +-  0.150   epo = 180</span>
    3575 <span class="go">2015-10-21_13:23:47.000 AMB C06   -368.848 +-  0.149   epo = 180</span>
    3576 <span class="go">2015-10-21_13:23:47.000 AMB C07   -102.508 +-  0.149   epo = 180</span>
    3577 <span class="go">2015-10-21_13:23:47.000 AMB C08   -145.358 +-  0.150   epo = 180</span>
    3578 <span class="go">2015-10-21_13:23:47.000 AMB C10    195.732 +-  0.149   epo = 180</span>
    3579 <span class="go">2015-10-21_13:23:47.000 AMB G25     58.320 +-  0.159   epo = 180</span>
    3580 <span class="go">2015-10-21_13:23:47.000 AMB G26    110.077 +-  0.159   epo = 180</span>
    3581 <span class="go">2015-10-21_13:23:47.000 AMB G29   -555.466 +-  0.159   epo = 180</span>
    3582 <span class="go">2015-10-21_13:23:47.000 AMB G31    -47.938 +-  0.159   epo = 180</span>
    3583 <span class="go">2015-10-21_13:23:47.000 AMB R01   -106.913 +-  0.193   epo = 180</span>
    3584 <span class="go">2015-10-21_13:23:47.000 AMB R02    168.316 +-  0.194   epo = 180</span>
    3585 <span class="go">2015-10-21_13:23:47.000 AMB R24    189.793 +-  0.193   epo = 180</span>
    3586 <span class="go">2015-10-21_13:23:47.000 AMB C02    -50.146 +-  0.149   epo = 175</span>
    3587 <span class="go">2015-10-21_13:23:47.000 AMB G05   -185.211 +-  0.173   epo = 175</span>
    3588 <span class="go">2015-10-21_13:23:47.000 AMB R14   -509.359 +-  0.194   epo = 175</span>
    3589 <span class="go">2015-10-21_13:23:47.000 AMB R15     65.355 +-  0.194   epo = 175</span>
    3590 <span class="go">2015-10-21_13:23:47.000 AMB R18   -105.206 +-  0.204   epo = 170</span>
    3591 <span class="go">2015-10-21_13:23:47.000 AMB G16    215.751 +-  0.160   epo = 165</span>
    3592 <span class="go">2015-10-21_13:23:47.000 AMB G18   -168.240 +-  0.159   epo = 165</span>
    3593 <span class="go">2015-10-21_13:23:47.000 AMB G20   -284.129 +-  0.159   epo = 165</span>
    3594 <span class="go">2015-10-21_13:23:47.000 AMB G21    -99.245 +-  0.159   epo = 165</span>
    3595 <span class="go">2015-10-21_13:23:47.000 AMB C03   -117.727 +-  0.149   epo = 30</span>
    3596 
    3597 <span class="go">2015-10-21_13:23:47.000 CUT07 X = -2364337.4498 +- 0.0279 Y = 4870285.6317 +- 0.0388 Z = -3360809.6395 +- 0.0313 dN = 0.0049 +- 0.0248 dE = -0.0033 +- 0.0239 dU = 0.0294 +- 0.0456</span>
    3598 </pre></div>
    3599 </div>
    3600 <p>Depending on selected processing options you find &#8216;GPS Time&#8217; stamps (yyyy-mm-dd_hh:mm:ss.sss) followed by</p>
    3601 <ul>
    3602 <li><p class="first">SATNUM: Number of satellites per GNSS,</p>
    3603 </li>
    3604 <li><p class="first">RES: Code and phase residuals for contributing GNSS systems in [m]</p>
    3605 <p>Given per satellite with cIF/lIF for ionosphere-free linear combination of code/phase observations,</p>
    3606 </li>
    3607 <li><p class="first">CLK: Receiver clock errors in [m],</p>
    3608 </li>
    3609 <li><p class="first">TRP: A priori and correction values of tropospheric zenith delay in [m],</p>
    3610 </li>
    3611 <li><p class="first">OFFGLO: Time offset between GPS time and GLONASS time in [m],</p>
    3612 </li>
    3613 <li><p class="first">OFFGAL: Time offset between GPS time and Galileo time in [m],</p>
    3614 </li>
    3615 <li><p class="first">OFFBDS: Time offset between GPS time and BDS time in [m],</p>
    3616 </li>
    3617 <li><p class="first">AMB: L3 biases, also known as &#8216;floated ambiguities&#8217;</p>
    3618 <p>Given per satellite with &#8216;nEpo&#8217; = number of epochs since last ambiguity reset,</p>
    3619 </li>
    3620 <li><p class="first">MOUNTPOINT: Here &#8216;CUT07&#8217; with XYZ position in [m] and dN/dE/dU in [m] for North, East, and Up displacements compared to a priori marker coordinates.</p>
    3621 </li>
    3622 </ul>
    3623 <p>Estimated parameters are presented together with their formal errors as derived from the implemented filter. The PPP algorithm includes outlier and cycle slip detection.</p>
    3624 <p>Default value for &#8216;Logfile directory&#8217; is an empty option field, meaning that you do not want to save daily PPP logfiles on disk. If a specified directory does not exist, BNC will not create PPP logfiles.</p>
    3625 </div>
    3626 <div class="section" id="nmea-directory-optional">
    3627 <span id="index-28"></span><h5>NMEA Directory - optional<a class="headerlink" href="#nmea-directory-optional" title="Permalink to this headline">¶</a></h5>
    3628 <p>You can specify a &#8216;NMEA directory&#8217; to save daily NMEA files with Point Positioning results recorded as NMEA sentences. Such sentences are usually generated about once per second with pairs of</p>
    3629 <ul class="simple">
    3630 <li>GPGGA sentences which mainly carry the estimated latitude, longitude, and height values, plus</li>
    3631 <li>GPRMC sentences which mainly carry date and time information.</li>
    3632 </ul>
    3633 <p>The following is an example for an NMEA output file from BNC:</p>
    3634 <div class="highlight-none"><div class="highlight"><pre>$GPRMC,112348,A,3200.233,S,11553.688,E,,,300615,,*A
     3188</p>
     3189
     3190<p><h4>2.13.1.9 <a name="ppplogfile">Logfile Directory - optional</h4></p>
     3191<p>
     3192Essential PPP results are shown in the 'Log' tab on the bottom of BNC's main window. Depending on the processing options, the following values are presented about once per second (example):
     3193<pre>
     3194...
     319515-10-21 13:23:38 2015-10-21_13:23:38.000 CUT07 X = -2364337.4505 Y = 4870285.6269 Z = -3360809.6481 NEU:  -0.0046  -0.0006  +0.0306 TRP:  +2.4018  +0.1006
     319615-10-21 13:23:39 2015-10-21_13:23:39.000 CUT07 X = -2364337.4468 Y = 4870285.6244 Z = -3360809.6453 NEU:  -0.0043  -0.0029  +0.0258 TRP:  +2.4018  +0.0993
     319715-10-21 13:23:40 2015-10-21_13:23:40.000 CUT07 X = -2364337.4455 Y = 4870285.6215 Z = -3360809.6466 NEU:  -0.0070  -0.0027  +0.0238 TRP:  +2.4018  +0.0978
     319815-10-21 13:23:41 2015-10-21_13:23:41.000 CUT07 X = -2364337.4447 Y = 4870285.6248 Z = -3360809.6445 NEU:  -0.0039  -0.0049  +0.0249 TRP:  +2.4018  +0.0962
     319915-10-21 13:23:42 2015-10-21_13:23:42.000 CUT07 X = -2364337.4426 Y = 4870285.6238 Z = -3360809.6424 NEU:  -0.0031  -0.0063  +0.0223 TRP:  +2.4018  +0.0950
     320015-10-21 13:23:43 2015-10-21_13:23:43.000 CUT07 X = -2364337.4453 Y = 4870285.6386 Z = -3360809.6518 NEU:  -0.0033  -0.0104  +0.0395 TRP:  +2.4018  +0.0927
     320115-10-21 13:23:44 2015-10-21_13:23:44.000 CUT07 X = -2364337.4435 Y = 4870285.6354 Z = -3360809.6487 NEU:  -0.0027  -0.0106  +0.0348 TRP:  +2.4018  +0.0908
     320215-10-21 13:23:45 2015-10-21_13:23:45.000 CUT07 X = -2364337.4445 Y = 4870285.6381 Z = -3360809.6532 NEU:  -0.0049  -0.0109  +0.0396 TRP:  +2.4018  +0.0884
     320315-10-21 13:23:46 2015-10-21_13:23:46.000 CUT07 X = -2364337.4437 Y = 4870285.6365 Z = -3360809.6548 NEU:  -0.0073  -0.0109  +0.0389 TRP:  +2.4018  +0.0855
     320415-10-21 13:23:47 2015-10-21_13:23:47.000 CUT07 X = -2364337.4498 Y = 4870285.6317 Z = -3360809.6395 NEU:  +0.0049  -0.0033  +0.0294 TRP:  +2.4018  +0.0833
     3205...
     3206</pre>
     3207</p>
     3208<p>
     3209Each row reports the PPP result of one epoch. It begins with a UTC time stamp (yy-mm-dd hh:mm:ss) which tells us when the result was produced. A second time stamp (yyyy-mm-dd_hh:mm:ss) describes the PPP's epoch in 'GPS Time'. It is followed by the derived XYZ position in [m], its North, East and Up displacement compared to an introduced a priori coordinate, and the estimated tropospheric delay [m] (model plus correction).
     3210</p>
     3211<p>
     3212If you require more information, you can specify a 'Logfile directory' to save daily logfiles per station (filename suffix 'ppp') with additional processing details on disk.
     3213</p>
     3214
     3215<p>
     3216<pre>
     3217Precise Point Positioning of Epoch 2015-10-21_13:23:47.000
     3218---------------------------------------------------------------
     32192015-10-21_13:23:47.000 SATNUM G  9
     32202015-10-21_13:23:47.000 SATNUM R  6
     32212015-10-21_13:23:47.000 SATNUM E  0
     32222015-10-21_13:23:47.000 SATNUM C  9
     32232015-10-21_13:23:47.000 RES C01   P3    0.3201
     32242015-10-21_13:23:47.000 RES C02   P3    0.3597
     32252015-10-21_13:23:47.000 RES C03   P3   -0.8003
     32262015-10-21_13:23:47.000 RES C04   P3    2.7684
     32272015-10-21_13:23:47.000 RES C05   P3    4.9738
     32282015-10-21_13:23:47.000 RES C06   P3    0.1888
     32292015-10-21_13:23:47.000 RES C07   P3   -2.8624
     32302015-10-21_13:23:47.000 RES C08   P3   -2.9075
     32312015-10-21_13:23:47.000 RES C10   P3   -1.5682
     32322015-10-21_13:23:47.000 RES G05   P3    0.3828
     32332015-10-21_13:23:47.000 RES G16   P3   -3.7602
     32342015-10-21_13:23:47.000 RES G18   P3    0.8424
     32352015-10-21_13:23:47.000 RES G20   P3    0.4062
     32362015-10-21_13:23:47.000 RES G21   P3    0.8683
     32372015-10-21_13:23:47.000 RES G25   P3   -1.3367
     32382015-10-21_13:23:47.000 RES G26   P3    1.4107
     32392015-10-21_13:23:47.000 RES G29   P3    1.1870
     32402015-10-21_13:23:47.000 RES G31   P3   -0.5605
     32412015-10-21_13:23:47.000 RES R01   P3   -0.1458
     32422015-10-21_13:23:47.000 RES R02   P3   -2.1184
     32432015-10-21_13:23:47.000 RES R14   P3    1.8634
     32442015-10-21_13:23:47.000 RES R15   P3   -1.3964
     32452015-10-21_13:23:47.000 RES R18   P3    0.5517
     32462015-10-21_13:23:47.000 RES R24   P3    1.5750
     32472015-10-21_13:23:47.000 RES C01   L3   -0.0040
     32482015-10-21_13:23:47.000 RES C02   L3    0.0070
     32492015-10-21_13:23:47.000 RES C03   L3    0.0093
     32502015-10-21_13:23:47.000 RES C04   L3   -0.0017
     32512015-10-21_13:23:47.000 RES C05   L3   -0.0008
     32522015-10-21_13:23:47.000 RES C06   L3   -0.0031
     32532015-10-21_13:23:47.000 RES C07   L3   -0.0016
     32542015-10-21_13:23:47.000 RES C08   L3   -0.0089
     32552015-10-21_13:23:47.000 RES C10   L3    0.0051
     32562015-10-21_13:23:47.000 RES G05   L3   -0.0408
     32572015-10-21_13:23:47.000 RES G16   L3    0.0043
     32582015-10-21_13:23:47.000 RES G18   L3    0.0017
     32592015-10-21_13:23:47.000 RES G20   L3   -0.0132
     32602015-10-21_13:23:47.000 RES G21   L3    0.0188
     32612015-10-21_13:23:47.000 RES G25   L3   -0.0059
     32622015-10-21_13:23:47.000 RES G26   L3    0.0028
     32632015-10-21_13:23:47.000 RES G29   L3    0.0062
     32642015-10-21_13:23:47.000 RES G31   L3    0.0012
     32652015-10-21_13:23:47.000 RES R01   L3    0.0260
     32662015-10-21_13:23:47.000 RES R02   L3   -0.0121
     32672015-10-21_13:23:47.000 RES R14   L3    0.0055
     32682015-10-21_13:23:47.000 RES R15   L3   -0.0488
     32692015-10-21_13:23:47.000 RES R18   L3    0.0475
     32702015-10-21_13:23:47.000 RES R24   L3    0.0103
     3271
     32722015-10-21_13:23:47.000 CLK      45386.971 +-  0.163
     32732015-10-21_13:23:47.000 TRP       2.402 +0.083 +-  0.013
     32742015-10-21_13:23:47.000 OFFGLO       1.766 +-  0.250
     32752015-10-21_13:23:47.000 OFFGAL       0.000 +- 1000.001
     32762015-10-21_13:23:47.000 OFFBDS      29.385 +-  0.218
     32772015-10-21_13:23:47.000 AMB C01    239.913 +-  0.149   epo = 180
     32782015-10-21_13:23:47.000 AMB C04    151.821 +-  0.149   epo = 180
     32792015-10-21_13:23:47.000 AMB C05    137.814 +-  0.150   epo = 180
     32802015-10-21_13:23:47.000 AMB C06   -368.848 +-  0.149   epo = 180
     32812015-10-21_13:23:47.000 AMB C07   -102.508 +-  0.149   epo = 180
     32822015-10-21_13:23:47.000 AMB C08   -145.358 +-  0.150   epo = 180
     32832015-10-21_13:23:47.000 AMB C10    195.732 +-  0.149   epo = 180
     32842015-10-21_13:23:47.000 AMB G25     58.320 +-  0.159   epo = 180
     32852015-10-21_13:23:47.000 AMB G26    110.077 +-  0.159   epo = 180
     32862015-10-21_13:23:47.000 AMB G29   -555.466 +-  0.159   epo = 180
     32872015-10-21_13:23:47.000 AMB G31    -47.938 +-  0.159   epo = 180
     32882015-10-21_13:23:47.000 AMB R01   -106.913 +-  0.193   epo = 180
     32892015-10-21_13:23:47.000 AMB R02    168.316 +-  0.194   epo = 180
     32902015-10-21_13:23:47.000 AMB R24    189.793 +-  0.193   epo = 180
     32912015-10-21_13:23:47.000 AMB C02    -50.146 +-  0.149   epo = 175
     32922015-10-21_13:23:47.000 AMB G05   -185.211 +-  0.173   epo = 175
     32932015-10-21_13:23:47.000 AMB R14   -509.359 +-  0.194   epo = 175
     32942015-10-21_13:23:47.000 AMB R15     65.355 +-  0.194   epo = 175
     32952015-10-21_13:23:47.000 AMB R18   -105.206 +-  0.204   epo = 170
     32962015-10-21_13:23:47.000 AMB G16    215.751 +-  0.160   epo = 165
     32972015-10-21_13:23:47.000 AMB G18   -168.240 +-  0.159   epo = 165
     32982015-10-21_13:23:47.000 AMB G20   -284.129 +-  0.159   epo = 165
     32992015-10-21_13:23:47.000 AMB G21    -99.245 +-  0.159   epo = 165
     33002015-10-21_13:23:47.000 AMB C03   -117.727 +-  0.149   epo = 30
     3301
     33022015-10-21_13:23:47.000 CUT07 X = -2364337.4498 +- 0.0279 Y = 4870285.6317 +- 0.0388 Z = -3360809.6395 +- 0.0313 dN = 0.0049 +- 0.0248 dE = -0.0033 +- 0.0239 dU = 0.0294 +- 0.0456
     3303</pre>
     3304<p>
     3305 Depending on selected processing options you find 'GPS Time' stamps (yyyy-mm-dd_hh:mm:ss.sss) followed by
     3306<ul>
     3307<li>SATNUM: Number of satellites per GNSS,</li>
     3308<li>RES: Code and phase residuals for contributing GNSS systems in [m]<br>Given per satellite with cIF/lIF for ionosphere-free linear combination of code/phase observations,</li>
     3309<li>CLK: Receiver clock errors in [m], </li>
     3310<li>TRP: A priori and correction values of tropospheric zenith delay in [m],
     3311<li>OFFGLO: Time offset between GPS time and GLONASS time in [m],
     3312<li>OFFGAL: Time offset between GPS time and Galileo time in [m],
     3313<li>OFFBDS: Time offset between GPS time and BDS time in [m],
     3314<li>AMB: L3 biases, also known as 'floated ambiguities'<br>Given per satellite with 'nEpo' = number of epochs since last ambiguity reset,
     3315<li>MOUNTPOINT: Here 'CUT07' with XYZ position in [m] and dN/dE/dU in [m] for North, East, and Up displacements compared to a priori marker coordinates.</li>
     3316</ul>
     3317Estimated parameters are presented together with their formal errors as derived from the implemented filter. The PPP algorithm includes outlier and cycle slip detection.
     3318</p>
     3319<p>
     3320Default value for 'Logfile directory' is an empty option field, meaning that you do not want to save daily PPP logfiles on disk. If a specified directory does not exist, BNC will not create PPP logfiles.
     3321</p>
     3322
     3323<p><h4>2.13.1.10 <a name="pppnmeafile">NMEA Directory - optional</h4></p>
     3324<p>
     3325You can specify a 'NMEA directory' to save daily NMEA files with Point Positioning results recorded as NMEA sentences. Such sentences are usually generated about once per second with pairs of
     3326</p>
     3327<p>
     3328<ul>
     3329<li> GPGGA sentences which mainly carry the estimated latitude, longitude, and height values, plus</li>
     3330<li> GPRMC sentences which mainly carry date and time information.</li>
     3331</ul>
     3332</p>
     3333The following is an example for an NMEA output file from BNC.
     3334</p>
     3335<pre>
     3336$GPRMC,112348,A,3200.233,S,11553.688,E,,,300615,,*A
    36353337$GPGGA,112348,3200.2332035,S,11553.6880127,E,1,13,1.4,23.971,M,0.0,M,,*5D
    36363338$GPRMC,112349,A,3200.233,S,11553.688,E,,,300615,,*B
    … …  
    36513353$GPGGA,112356,3200.2332035,S,11553.6880127,E,1,13,1.4,23.971,M,0.0,M,,*52
    36523354...
    3653 </pre></div>
    3654 </div>
    3655 <p>The default value for &#8216;NMEA directory&#8217; is an empty option field, meaning that BNC will not save NMEA sentences into files. If a specified directory does not exist, BNC will not create NMEA files. Note that Tomoji Takasu has written a program named RTKPLOT for visualizing NMEA sentences from IP ports or files. It is available from <a class="reference external" href="http://www.rtklib.com">http://www.rtklib.com</a> and compatible with the &#8216;NMEA Directory&#8217; and port output of BNC&#8217;s &#8216;PPP&#8217; client option.</p>
    3656 </div>
    3657 <div class="section" id="snx-tro-directory-optional">
    3658 <h5>SNX TRO Directory - optional<a class="headerlink" href="#snx-tro-directory-optional" title="Permalink to this headline">¶</a></h5>
    3659 <p>BNC estimates the tropospheric delay according to equation</p>
    3660 <div class="math">
    3661 \[T(z) = T_{apr}(z) + dT / cos(z)\]</div>
    3662 <p>where <span class="math">\(T_{apr}\)</span> is the a priori tropospheric delay derived from Saastamoinen model.</p>
    3663 <p>You can specify a &#8216;SNX TRO Directory&#8217; for saving SINEX Troposphere files on disk, see <a class="reference external" href="https://igscb.jpl.nasa.gov/igscb/data/format/sinex_tropo.txt">https://igscb.jpl.nasa.gov/igscb/data/format/sinex_tropo.txt</a> for a documentation of the file format. Note that receiver type information for these files must be provided through the coordinates file described in section &#8216;Coordinates file&#8217;. The following is an example for a troposphere file content:</p>
    3664 <div class="highlight-none"><div class="highlight"><pre> %=TRO 2.00 BKG 16:053:42824 BKG 16:053:42824 16:053:43199 P 00376 0  T
    3665  +FILE/REFERENCE
    3666   DESCRIPTION        BNC generated SINEX TRO file
    3667   OUTPUT             Total Troposphere Zenith Path Delay Product
    3668   SOFTWARE           BNC 2.12
    3669   INPUT              Ntrip streams, additional Orbit and Clock information from IGS03
    3670  -FILE/REFERENCE
     3355</pre>
     3356<p>
     3357The default value for 'NMEA directory' is an empty option field, meaning that BNC will not save NMEA sentences into files. If a specified directory does not exist, BNC will not create NMEA files.
     3358</p>
     3359
     3360<p>
     3361Note that Tomoji Takasu has written a program named RTKPLOT for visualizing NMEA sentences from IP ports or files. It is available from <u>http://www.rtklib.com</u> and compatible with the 'NMEA Directory' and port output of BNC's 'PPP' client option.
     3362</p>
     3363
     3364<p><h4>2.13.1.11 <a name="pppsnxtrofile">SNX TRO Directory - optional</h4></p>
     3365<p>
     3366BNC estimates the tropospheric delay according to equation
     3367<pre>
     3368   T(z) = T_apr(z) + dT / cos(z)
     3369</pre>
     3370where T_apr is the a priori tropospheric delay derived from Saastamoinen model.
     3371</p>
     3372
     3373<p>
     3374You can specify a 'SNX TRO Directory' for saving SINEX Troposphere files on disk, see <u>https://igscb.jpl.nasa.gov/igscb/data/format/sinex_tropo.txt</u> for a documentation of the file format. Note that receiver type information for these files must be provided through the coordinates file described in section 'Coordinates file'. The following is an example for a troposphere file content:
     3375</p>
     3376
     3377<pre>
     3378%=TRO 2.00 BKG 16:053:42824 BKG 16:053:42824 16:053:43199 P 00376 0  T
     3379+FILE/REFERENCE
     3380 DESCRIPTION        BNC generated SINEX TRO file
     3381 OUTPUT             Total Troposphere Zenith Path Delay Product
     3382 SOFTWARE           BNC 2.12
     3383 INPUT              Ntrip streams, additional Orbit and Clock information from IGS03
     3384-FILE/REFERENCE
    36713385
    36723386+SITE/ID
    3673  *CODE PT DOMES____ T _STATION DESCRIPTION__ APPROX_LON_ APPROX_LAT_ _APP_H_
    3674   CUT0  A           P AUS                    115 53 41.3 -32  0 14.0    24.0
    3675  -SITE/ID
    3676 
    3677  +SITE/RECEIVER
    3678  *SITE PT SOLN T DATA_START__ DATA_END____ DESCRIPTION_________ S/N__ FIRMWARE___
    3679   CUT0  A 0001 P 16:053:42824 16:053:43199 TRM59800.00     SCIS ----- -----------
    3680  -SITE/RECEIVER
    3681 
    3682  +SITE/ANTENNA
    3683  *SITE PT SOLN T DATA_START__ DATA_END____ DESCRIPTION_________ S/N__
    3684   CUT0  A 0001 P 16:053:42824 16:053:43199 TRM59800.00     SCIS -----
    3685  -SITE/ANTENNA
    3686 
    3687  +SITE/ECCENTRICITY
    3688  *                                             UP______ NORTH___ EAST____
    3689  *SITE PT SOLN T DATA_START__ DATA_END____ AXE ARP-&gt;BENCHMARK(M)_________
    3690   CUT0  A 0001 P 16:053:42824 16:053:43199 UNE   0.0000   0.0000   0.0000
    3691  -SITE/ECCENTRICITY
    3692 
    3693  +TROP/COORDINATES
    3694  *SITE PT SOLN T STA_X_______ STA_Y_______ STA_Z_______ SYSTEM REMARK
    3695   CUT0  A 0001 P -2364337.441  4870285.605 -3360809.628 ITRF08 BKG
    3696  -TROP/COORDINATES
    3697 
    3698  +TROP/DESCRIPTION
    3699  *KEYWORD______________________ VALUE(S)______________
    3700   SAMPLING INTERVAL                                  1
    3701   SAMPLING TROP                                      1
    3702   ELEVATION CUTOFF ANGLE                             7
    3703   TROP MAPPING FUNCTION         Saastamoinen
    3704   SOLUTION_FIELDS_1             TROTOT STDEV
    3705  -TROP/DESCRIPTION
    3706 
    3707  +TROP/SOLUTION
    3708  *SITE EPOCH_______ TROTOT STDEV
    3709   CUT0 16:053:42824    0.0   0.0
    3710   CUT0 16:053:42825 2401.7 100.0
    3711   CUT0 16:053:42826 2401.8 100.0
    3712   CUT0 16:053:42827 2401.8  99.9
    3713   CUT0 16:053:42828 2402.1  99.9
    3714  ...
    3715  ...
    3716  -TROP/SOLUTION
    3717  %=ENDTROP
    3718 </pre></div>
    3719 </div>
    3720 <p>The default value for &#8216;SNX TRO Directory&#8217; is an empty option field, meaning that BNC will not save SINEX Troposphere files. If a specified directory does not exist, BNC will not create SINEX Troposphere files.</p>
    3721 </div>
    3722 <div class="section" id="snx-tro-interval-mandatory-if-sinex-tro-directory-is-set">
    3723 <h5>SNX TRO Interval - mandatory if &#8216;SINEX TRO Directory&#8217; is set<a class="headerlink" href="#snx-tro-interval-mandatory-if-sinex-tro-directory-is-set" title="Permalink to this headline">¶</a></h5>
    3724 <p>Select the length of SINEX Troposphere files. Default &#8216;Interval&#8217; for saving SINEX Troposphere files on disk is &#8216;1 day&#8217;.</p>
    3725 </div>
    3726 <div class="section" id="snx-tro-sampling-mandatory-if-sinex-tro-directory-is-set">
    3727 <h5>SNX TRO Sampling - mandatory if &#8216;SINEX TRO Directory&#8217; is set<a class="headerlink" href="#snx-tro-sampling-mandatory-if-sinex-tro-directory-is-set" title="Permalink to this headline">¶</a></h5>
    3728 <p>Select a &#8216;Sampling&#8217; rate in seconds for saving troposphere parameters. Default &#8216;Sampling&#8217; rate is &#8216;0&#8217;, meaning that all troposphere estimates will be saved on disk.</p>
    3729 </div>
    3730 <div class="section" id="snx-tro-analysis-center-mandatory-if-sinex-tro-directory-is-set">
    3731 <h5>SNX TRO Analysis Center - Mandatory if &#8216;SINEX TRO Directory&#8217; is set<a class="headerlink" href="#snx-tro-analysis-center-mandatory-if-sinex-tro-directory-is-set" title="Permalink to this headline">¶</a></h5>
    3732 <p>Specify a 3-character abbreviation describing you as the generating Analysis Center (AC) in your SINEX troposphere files. String &#8216;BKG&#8217; is an example.</p>
    3733 </div>
    3734 <div class="section" id="snx-tro-solution-id-mandatory-if-sinex-tro-directory-is-set">
    3735 <h5>SNX TRO Solution ID - Mandatory if &#8216;SINEX TRO Directory&#8217; is set<a class="headerlink" href="#snx-tro-solution-id-mandatory-if-sinex-tro-directory-is-set" title="Permalink to this headline">¶</a></h5>
    3736 <p>Specify a 4-character solution ID to allow a distingtion between different solutions per AC. String &#8216;0001&#8217; is an example.</p>
    3737 </div>
    3738 </div>
    3739 <div class="section" id="ppp-2-processed-stations">
    3740 <span id="index-29"></span><h4>PPP (2): Processed Stations<a class="headerlink" href="#ppp-2-processed-stations" title="Permalink to this headline">¶</a></h4>
    3741 <p>This panel allows to enter parameters specific to each PPP process or thread. Individual sigmas for a priori coordinates and a noise for coordinate variations over time can be introduced. Furthermore, a sigma for model-based troposphere estimates and the corresponding noise for troposphere variations can be specified. Finally, local IP server ports can be defined for output of NMEA streams carrying PPP results.</p>
    3742 <p>BNC offers to create a table with one line per PPP process or thread to specify station-specific parameters. Hit the &#8216;Add Station&#8217; button to create the table or add a new line to it. To remove a line from the table, highlight it by clicking it and hit the &#8216;Delete Station&#8217; button. You can also remove multiple lines simultaneously by highlighting them using +Shift or +Ctrl. BNC will simultaneously produce PPP solutions for all stations listed in the &#8216;Station&#8217; column of this table, see <a class="reference internal" href="#fig-23"><span class="std std-numref">Fig. 25</span></a> for an example screenshot.</p>
    3743 <div class="figure" id="id48">
    3744 <span id="fig-23"></span><a class="reference internal image-reference" href="_images/fig_23.png"><img alt="_images/fig_23.png" src="_images/fig_23.png" style="width: 1281.0px; height: 893.0px;" /></a>
    3745 <p class="caption"><span class="caption-number">Fig. 25 </span><span class="caption-text">Precise Point Positioning with BNC, PPP Panel 2, using RTKPLOT for visualization</span></p>
    3746 </div>
    3747 <div class="section" id="station-mandatory">
    3748 <h5>Station - mandatory<a class="headerlink" href="#station-mandatory" title="Permalink to this headline">¶</a></h5>
    3749 <p>Hit the &#8216;Add Station&#8217; button, double click on the &#8216;Station&#8217; field, then specify an observation&#8217;s mountpoint from the &#8216;Streams&#8217; section or introduce the 4-character Station ID of your RINEX observation file and hit Enter. BNC will only produce PPP solutions for stations listed in this table.</p>
    3750 </div>
    3751 <div class="section" id="sigma-north-east-up-mandatory">
    3752 <h5>Sigma North/East/Up - mandatory<a class="headerlink" href="#sigma-north-east-up-mandatory" title="Permalink to this headline">¶</a></h5>
    3753 <p>Enter sigmas in meters for the initial coordinate components. A value of 100.0 (default) may be an appropriate choice. However, this value may be significantly smaller (e.g. 0.01) when starting for example from a station with a well-known position in so-called Quick-Start mode.</p>
    3754 </div>
    3755 <div class="section" id="noise-north-east-up-mandatory">
    3756 <h5>Noise North/East/Up - mandatory<a class="headerlink" href="#noise-north-east-up-mandatory" title="Permalink to this headline">¶</a></h5>
    3757 <p>Enter a white &#8216;Noise&#8217; in meters for estimated coordinate components. A value of 100.0 (default) may be appropriate when considering possible sudden movements of a rover.</p>
    3758 </div>
    3759 <div class="section" id="tropo-sigma-mandatory">
    3760 <h5>Tropo Sigma - mandatory<a class="headerlink" href="#tropo-sigma-mandatory" title="Permalink to this headline">¶</a></h5>
    3761 <p>Enter a sigma in meters for the a priori model based tropospheric delay estimation. A value of 0.1 (default) may be an appropriate choice.</p>
    3762 </div>
    3763 <div class="section" id="tropo-noise-mandatory">
    3764 <h5>Tropo Noise - mandatory<a class="headerlink" href="#tropo-noise-mandatory" title="Permalink to this headline">¶</a></h5>
    3765 <p>Enter a white &#8216;Noise&#8217; in meters per second to describe the expected variation of the tropospheric effect. Supposing 1Hz observation data, a value of 3e-6 (default) would mean that the tropospheric effect may vary for 3600 * 3e-6 = 0.01 meters per hour.</p>
    3766 </div>
    3767 <div class="section" id="nmea-port-optional">
    3768 <h5>NMEA Port - optional<a class="headerlink" href="#nmea-port-optional" title="Permalink to this headline">¶</a></h5>
    3769 <p>Specify the IP port number of a local port where Point Positioning results become available as NMEA sentences. The default value for &#8216;NMEA Port&#8217; is an empty option field, meaning that BNC does not provide NMEA sentences via IP port. Note that NMEA file output and NMEA IP port output are the same.</p>
    3770 <p>Note also that Tomoji Takasu has written a program named RTKPLOT for visualizing NMEA sentences from IP ports or files. It is available from <a class="reference external" href="http://www.rtklib.com">http://www.rtklib.com</a> and compatible with the NMEA file and port output of BNC&#8217;s &#8216;PPP&#8217; client option.</p>
    3771 <p>Furthermore, NASA&#8217;s &#8216;World Wind&#8217; software (see <a class="reference external" href="http://worldwindcentral.com/wiki/NASA_World_Wind_Download">http://worldwindcentral.com/wiki/NASA_World_Wind_Download</a>) can be used for real-time visualization of positions provided through BNC&#8217;s NMEA IP output port. You need the &#8216;GPS Tracker&#8217; plug-in available from <a class="reference external" href="http://worldwindcentral.com/wiki/GPS_Tracker">http://worldwindcentral.com/wiki/GPS_Tracker</a> for that. The &#8216;Word Wind&#8217; map resolution is not meant for showing centimeter level details.</p>
    3772 </div>
    3773 </div>
    3774 <div class="section" id="ppp-3-processing-options">
    3775 <span id="index-30"></span><h4>PPP (3): Processing Options<a class="headerlink" href="#ppp-3-processing-options" title="Permalink to this headline">¶</a></h4>
    3776 <p>BNC allows using various Point Positioning processing options depending on the capability of the involved receiver and the application in mind. You can introduce specific sigmas for code and phase observations as well as for a priori coordinates and troposphere estimates. You could also carry out your PPP solution in Quick-Start mode or enforce BNC to restart a solution if the length of an outage exceeds a certain threshold. The intention of this panel is to specify general processing options to be applied to all PPP threads in one BNC job, see <a class="reference internal" href="#fig-24"><span class="std std-numref">Fig. 26</span></a> for an example setup.</p>
    3777 <div class="figure" id="id49">
    3778 <span id="fig-24"></span><a class="reference internal image-reference" href="_images/fig_24.png"><img alt="_images/fig_24.png" src="_images/fig_24.png" style="width: 1269.0px; height: 933.0px;" /></a>
    3779 <p class="caption"><span class="caption-number">Fig. 26 </span><span class="caption-text">Precise Point Positioning with BNC, PPP Panel 3</span></p>
    3780 </div>
    3781 <div class="section" id="linear-combinations-mandatory">
    3782 <span id="index-31"></span><h5>Linear Combinations - mandatory<a class="headerlink" href="#linear-combinations-mandatory" title="Permalink to this headline">¶</a></h5>
    3783 <p>Specify on which ionosphere-free Linear Combinations (LCs) of observations you want to base ambiguity resolutions <a class="reference internal" href="bnchelp.html#mervart2008a" id="id11">[9]</a>. This implicitly defines the kind of GNSS observations you want to use. The specification is to be done per GNSS system (&#8216;GPS LCs&#8217;, &#8216;GLONASS LCs&#8217;, &#8216;Galileo LCs&#8217;, &#8216;BDS LCs&#8217;).</p>
    3784 <ul class="simple">
    3785 <li>Selecting &#8216;P3&#8217; means that you request BNC to use code data and the so-called P3 ionosphere-free linear combinations of code observations.</li>
    3786 <li>&#8216;P3&amp;L3&#8217; means that you request BNC to use both, code and phase data and the so-called P3 and L3 ionosphere-free linear combinations of code and phase observations.</li>
    3787 </ul>
    3788 <p>Note that most geodetic GPS receivers support the observation of both, code and phase data. Hence, specifying &#8216;P3&amp;L3&#8217; would be a good choice for GPS when processing data from such a receiver. If multi-GNSS data processing is your intention, make sure your receiver supports GLONASS and/or Galileo and/or BDS observations besides GPS. Note also that the Broadcast Correction stream or file, which is required for PPP, also supports all the systems you have in mind.</p>
    3789 <p>Specifying &#8216;no&#8217; means that you do not at all want BNC to use observations from the affected GNSS system.</p>
    3790 </div>
    3791 <div class="section" id="code-observations-mandatory">
    3792 <span id="index-32"></span><h5>Code Observations - mandatory<a class="headerlink" href="#code-observations-mandatory" title="Permalink to this headline">¶</a></h5>
    3793 <p>Enter a &#8216;Sigma C1&#8217; for C1 code observations in meters. The bigger the sigma you enter, the less the contribution of C1 code observations to a PPP solution based on a combination of code and phase data. &#8216;2.0&#8217; meters is likely to be an appropriate choice. Specify a maximum for residuals &#8216;Max Res C1&#8217; for C1 code observations in a PPP solution. &#8216;3.0&#8217; meters may be an appropriate choice for that. If the maximum is exceeded, contributions from the corresponding observation will be ignored in the PPP solution.</p>
    3794 </div>
    3795 <div class="section" id="phase-observations-mandatory">
    3796 <span id="index-33"></span><h5>Phase Observations - mandatory<a class="headerlink" href="#phase-observations-mandatory" title="Permalink to this headline">¶</a></h5>
    3797 <p>Enter a &#8216;Sigma L1&#8217; for L1 phase observations in meters. The bigger the sigma you enter, the less the contribution of L1 phase observations to a PPP solutions based on a combination of code and phase data. &#8216;0.01&#8217; meters is likely to be an appropriate choice. Specify a maximum for residuals &#8216;Max Res L1&#8217; for L1 phase observations in a PPP solution. &#8216;0.03&#8217; meters may be an appropriate choice for that. If the maximum is exceeded, contributions from the corresponding observation will be ignored in the PPP solution.</p>
    3798 <p>As the convergence characteristic of a PPP solution can be influenced by the ratio of sigmas for code and phase, you may like to introduce sigmas which differ from the default values:</p>
    3799 <ul class="simple">
     3387*CODE PT DOMES____ T _STATION DESCRIPTION__ APPROX_LON_ APPROX_LAT_ _APP_H_
     3388 CUT0  A           P AUS                    115 53 41.3 -32  0 14.0    24.0
     3389-SITE/ID
     3390
     3391+SITE/RECEIVER
     3392*SITE PT SOLN T DATA_START__ DATA_END____ DESCRIPTION_________ S/N__ FIRMWARE___
     3393 CUT0  A 0001 P 16:053:42824 16:053:43199 TRM59800.00     SCIS ----- -----------
     3394-SITE/RECEIVER
     3395
     3396+SITE/ANTENNA
     3397*SITE PT SOLN T DATA_START__ DATA_END____ DESCRIPTION_________ S/N__
     3398 CUT0  A 0001 P 16:053:42824 16:053:43199 TRM59800.00     SCIS -----
     3399-SITE/ANTENNA
     3400
     3401+SITE/ECCENTRICITY
     3402*                                             UP______ NORTH___ EAST____
     3403*SITE PT SOLN T DATA_START__ DATA_END____ AXE ARP->BENCHMARK(M)_________
     3404 CUT0  A 0001 P 16:053:42824 16:053:43199 UNE   0.0000   0.0000   0.0000
     3405-SITE/ECCENTRICITY
     3406
     3407+TROP/COORDINATES
     3408*SITE PT SOLN T STA_X_______ STA_Y_______ STA_Z_______ SYSTEM REMARK
     3409 CUT0  A 0001 P -2364337.441  4870285.605 -3360809.628 ITRF08 BKG
     3410-TROP/COORDINATES
     3411
     3412+TROP/DESCRIPTION
     3413*KEYWORD______________________ VALUE(S)______________
     3414 SAMPLING INTERVAL                                  1
     3415 SAMPLING TROP                                      1
     3416 ELEVATION CUTOFF ANGLE                             7
     3417 TROP MAPPING FUNCTION         Saastamoinen
     3418 SOLUTION_FIELDS_1             TROTOT STDEV
     3419-TROP/DESCRIPTION
     3420
     3421+TROP/SOLUTION
     3422*SITE EPOCH_______ TROTOT STDEV
     3423 CUT0 16:053:42824    0.0   0.0
     3424 CUT0 16:053:42825 2401.7 100.0
     3425 CUT0 16:053:42826 2401.8 100.0
     3426 CUT0 16:053:42827 2401.8  99.9
     3427 CUT0 16:053:42828 2402.1  99.9
     3428...
     3429...
     3430-TROP/SOLUTION
     3431%=ENDTROP
     3432</pre>
     3433
     3434<p>
     3435The default value for 'SNX TRO Directory' is an empty option field, meaning that BNC will not save SINEX Troposphere files. If a specified directory does not exist, BNC will not create SINEX Troposphere files.
     3436</p>
     3437
     3438<p><h4>2.13.1.11.1 <a name="pppsnxtrointr">Interval - mandatory if 'SINEX TRO Directory' is set</h4></p>
     3439<p>
     3440Select the length of SINEX Troposphere files.
     3441</p>
     3442<p>
     3443Default 'Interval' for saving SINEX Troposphere files on disk is '1 day'.
     3444</p>
     3445
     3446<p><h4>2.13.1.11.2 <a name="pppsnxtrosampl">Sampling - mandatory if 'SINEX TRO Directory' is set</h4></p>
     3447<p>
     3448Select a 'Sampling' rate in seconds for saving troposphere parameters.
     3449</p>
     3450<p>
     3451Default 'Sampling' rate is '0', meaning that all troposphere estimates will be saved on disk.
     3452</p>
     3453
     3454<p><h4>2.13.1.11.3 <a name="pppsnxAc">Analysis Center - Mandatory if 'SINEX TRO Directory' is set</h4></p>
     3455<p>
     3456Specify a 3-character abbreviation describing you as the generating Analysis Center (AC) in your SINEX troposphere files. String 'BKG' is an example.
     3457</p>
     3458
     3459<p><h4>2.13.1.11.4 <a name="pppsnxSol">Solution ID - Mandatory if 'SINEX TRO Directory' is set</h4></p>
     3460<p>
     3461Specify a 4-character solution ID to allow a distingtion between different solutions per AC. String '0001' is an example.
     3462</p>
     3463
     3464<p><h4>2.13.2 <a name="pppStation">PPP (2): Processed Stations</h4></p>
     3465
     3466<p>
     3467This panel allows to enter parameters specific to each PPP process or thread. Individual sigmas for a priori coordinates and a noise for coordinate variations over time can be introduced. Furthermore, a sigma for model-based troposphere estimates and the corresponding noise for troposphere variations can be specified. Finally, local IP server ports can be defined for output of NMEA streams carrying PPP results.
     3468</p>
     3469<p>
     3470BNC offers to create a table with one line per PPP process or thread to specify station-specific parameters. Hit the 'Add Station' button to create the table or add a new line to it. To remove a line from the table, highlight it by clicking it and hit the 'Delete Station' button. You can also remove multiple lines simultaneously by highlighting them using +Shift or +Ctrl.</p>
     3471</p>
     3472<p>
     3473BNC will simultaneously produce PPP solutions for all stations listed in the 'Station' column of this table.
     3474</p>
     3475
     3476<p><img src="IMG/screenshot17.png"/></p>
     3477<p><u>Figure 23:</u> Precise Point Positioning with BNC, PPP Panel 2, using RTKPLOT for visualization</p>
     3478
     3479<p><h4>2.13.2.1 <a name="pppsite">Station - mandatory</h4></p>
     3480<p>
     3481Hit the 'Add Station' button, double click on the 'Station' field, then specify an observation's mountpoint from the 'Streams' section or introduce the 4-character Station ID of your RINEX observation file and hit Enter. BNC will only produce PPP solutions for stations listed in this table.
     3482</p>
     3483
     3484<p><h4>2.13.2.2 <a name="pppnehsigma">Sigma North/East/Up - mandatory</h4></p>
     3485<p>
     3486Enter sigmas in meters for the initial coordinate components. A value of 100.0 (default) may be an appropriate choice. However, this value may be significantly smaller (e.g. 0.01) when starting for example from a station with a well-known position in so-called Quick-Start mode.
     3487</p>
     3488
     3489<p><h4>2.13.2.3 <a name="pppnehnoise">Noise North/East/Up - mandatory</h4></p>
     3490<p>
     3491Enter a white 'Noise' in meters for estimated coordinate components. A value of 100.0 (default) may be appropriate when considering possible sudden movements of a rover.
     3492</p>
     3493
     3494<p><h4>2.13.2.4 <a name="ppptropsigma">Tropo Sigma - mandatory</h4></p>
     3495<p>
     3496Enter a sigma in meters for the a priori model based tropospheric delay estimation. A value of 0.1 (default) may be an appropriate choice.
     3497</p>
     3498
     3499<p><h4>2.13.2.5 <a name="ppptropnoise">Tropo Noise - mandatory</h4></p>
     3500<p>
     3501Enter a white 'Noise' in meters per second to describe the expected variation of the tropospheric effect. Supposing 1Hz observation data, a value of 3e-6 (default) would mean that the tropospheric effect may vary for 3600 * 3e-6 = 0.01 meters per hour.
     3502</p>
     3503
     3504<p><h4>2.13.2.6 <a name="pppnmeaport">NMEA Port - optional</h4></p>
     3505Specify the IP port number of a local port where Point Positioning results become available as NMEA sentences. The default value for 'NMEA Port' is an empty option field, meaning that BNC does not provide NMEA sentences via IP port. Note that NMEA file output and NMEA IP port output are the same.
     3506</p>
     3507<p>
     3508Note also that Tomoji Takasu has written a program named RTKPLOT for visualizing NMEA sentences from IP ports or files. It is available from <u>http://www.rtklib.com</u> and compatible with the NMEA file and port output of BNC's 'PPP' client option.
     3509</p>
     3510<p>
     3511Furthermore, NASA's 'World Wind' software (see <u>http://worldwindcentral.com/wiki/NASA_World_Wind_Download</u>) can be used for real-time visualization of positions provided through BNC's NMEA IP output port. You need the 'GPS Tracker' plug-in available from <u>http://worldwindcentral.com/wiki/GPS_Tracker</u> for that. The 'Word Wind' map resolution is not meant for showing centimeter level details.
     3512</p>
     3513
     3514<p><h4>2.13.3 <a name="pppOptions">PPP (3): Processing Options</h4></p>
     3515<p>BNC allows using various Point Positioning processing options depending on the capability of the involved receiver and the application in mind. You can introduce specific sigmas for code and phase observations as well as for a priori coordinates and troposphere estimates. You could also carry out your PPP solution in Quick-Start mode or enforce BNC to restart a solution if the length of an outage exceeds a certain threshold.
     3516</p>
     3517<p>
     3518The intention of this panel is to specify general processing options to be applied to all PPP threads in one BNC job.
     3519</p>
     3520
     3521<p><img src="IMG/screenshot18.png"/></p>
     3522<p><u>Figure 24:</u> Precise Point Positioning with BNC, PPP Panel 3</p>
     3523
     3524<p><h4>2.13.3.1 <a name="ppplinecombi">Linear Combinations - mandatory</h4></p>
     3525<p>
     3526<p>
     3527Specify on which ionosphere-free Linear Combinations (LCs) of observations you want to base ambiguity resolutions (Mervart et al. 2008). This implicitly defines the kind of GNSS observations you want to use. The specification is to be done per GNSS system ('GPS LCs', 'GLONASS LCs', 'Galileo LCs', 'BDS LCs').
     3528</p>
     3529<p>
     3530<ul>
     3531<li>Selecting 'P3' means that you request BNC to use code data and the so-called P3 ionosphere-free linear combinations of code observations.</li>
     3532<li>'L3' means that you request BNC to use phase data and the so-called L3 ionosphere-free linear combinations of phase observations.</li>
     3533<li>'P3&L3' means that you request BNC to use both, code and phase data and the so-called P3 and L3 ionosphere-free linear combinations of code and phase observations.
     3534</li>
     3535</ul>
     3536</p>
     3537<p>Note that most geodetic GPS receivers support the observation of both, code and phase data. Hence, specifying 'P3&L3' would be a good choice for GPS when processing data from such a receiver. If multi-GNSS data processing is your intention, make sure your receiver supports GLONASS and/or Galileo and/or BDS observations besides GPS. Note also that the Broadcast Correction stream or file, which is required for PPP, also supports all the systems you have in mind.
     3538</p>
     3539<p>Specifying 'no' means that you do not at all want BNC to use observations from the affected GNSS system.
     3540</p>
     3541
     3542<p><h4>2.13.3.2 <a name="pppcodeobs">Code Observations - mandatory</h4></p>
     3543</p>
     3544Enter a 'Sigma C1' for C1 code observations in meters. The bigger the sigma you enter, the less the contribution of C1 code observations to a PPP solution based on a combination of code and phase data. '2.0' meters is likely to be an appropriate choice.
     3545</p>
     3546<p>
     3547Specify a maximum for residuals 'Max Res C1' for C1 code observations in a PPP solution. '3.0' meters may be an appropriate choice for that. If the maximum is exceeded, contributions from the corresponding observation will be ignored in the PPP solution.
     3548</p>
     3549
     3550
     3551<p><h4>2.13.3.3 <a name="pppphaseobs">Phase Observations - mandatory</h4></p>
     3552<p>
     3553Enter a 'Sigma L1' for L1 phase observations in meters. The bigger the sigma you enter, the less the contribution of L1 phase observations to a PPP solutions based on a combination of code and phase data. '0.01' meters is likely to be an appropriate choice.
     3554</p>
     3555<p>
     3556Specify a maximum for residuals 'Max Res L1' for L1 phase observations in a PPP solution. '0.03' meters may be an appropriate choice for that. If the maximum is exceeded, contributions from the corresponding observation will be ignored in the PPP solution.
     3557</p>
     3558
     3559<p>
     3560As the convergence characteristic of a PPP solution can be influenced by the ratio of sigmas for code and phase, you may like to introduce sigmas which differ from the default values.
     3561<ul>
    38003562<li>Introducing a smaller sigma (higher accuracy) for code observations or a bigger sigma for phase observations leads to better results shortly after program start. However, it may take more time until you finally get the best possible solution.</li>
    38013563<li>Introducing a bigger sigma (lower accuracy) for code observations or a smaller sigma for phase observations may lead to less accurate results shortly after program start and thus a prolonged period of convergence but could provide better positions in the long run.</li>
    38023564</ul>
    3803 </div>
    3804 <div class="section" id="elevation-dependent-weighting-mandatory">
    3805 <span id="index-34"></span><h5>Elevation Dependent Weighting - mandatory<a class="headerlink" href="#elevation-dependent-weighting-mandatory" title="Permalink to this headline">¶</a></h5>
    3806 <p>BNC allows elevation dependent weighting when processing GNSS observations. A weight function</p>
    3807 <div class="math">
    3808 \[P = cos^2 * z\]</div>
    3809 <p>with <span class="math">\(z\)</span> being the zenith distance to the involved satellite can be applied instead of the simple weight function &#8216;P = 1&#8217; independent from satellite elevation angles:</p>
    3810 <ul class="simple">
    3811 <li>Tick &#8216;Ele Wgt Code&#8217; if you want Elevation Dependent Weighting for code observations.</li>
    3812 <li>Tick &#8216;Ele Wgt Phase&#8217; if you want Elevation Dependent Weighting for phase observations.</li>
    3813 </ul>
    3814 <p>Default is using the plain weight function &#8216;P = 1&#8217; for code and phase observations.</p>
    3815 </div>
    3816 <div class="section" id="minimum-number-of-observations-mandatory">
    3817 <h5>Minimum Number of Observations - mandatory<a class="headerlink" href="#minimum-number-of-observations-mandatory" title="Permalink to this headline">¶</a></h5>
    3818 <p>Select the minimum number of observations you want to use per epoch. The minimum for parameter &#8216;Min # of Obs&#8217; is 4. This is also the default.</p>
    3819 </div>
    3820 <div class="section" id="minimum-elevation-mandatory">
    3821 <h5>Minimum Elevation - mandatory<a class="headerlink" href="#minimum-elevation-mandatory" title="Permalink to this headline">¶</a></h5>
    3822 <p>Select a minimum for satellite elevation angles. Selecting &#8216;10 deg&#8217; for option &#8216;Min Elevation&#8217; may be an appropriate choice. Default is &#8216;0 deg&#8217;, meaning that any observation will be used regardless of the involved satellite elevation angle.</p>
    3823 </div>
    3824 <div class="section" id="wait-for-clock-corrections-optional">
    3825 <span id="index-35"></span><h5>Wait for Clock Corrections - optional<a class="headerlink" href="#wait-for-clock-corrections-optional" title="Permalink to this headline">¶</a></h5>
    3826 <p>Specifying &#8216;no&#8217; for option &#8216;Wait for clock corr.&#8217; means that BNC processes each epoch of data immediately after arrival using satellite clock corrections available at that time. A non-zero value means that epochs of data are buffered and the processing of each epoch is postponed until satellite clock corrections not older than &#8216;Wait for clock corr.&#8217; seconds are available. Specifying a value of half the update rate of the clock corrections (e.g. 5 sec) may be appropriate. Note that this causes an additional delay of the PPP solutions in the amount of half of the update rate.</p>
    3827 <p>Using observations in sync with the corrections can avoid a possible high frequency noise of PPP solutions. Such noise could result from processing observations regardless of how late after a clock correction they were received. Note that applying the &#8216;Wait for clock corr.&#8217; option significantly reduces the PPP computation effort for BNC.</p>
    3828 <p>Default is an empty option field, meaning that you want BNC to process observations immediately after their arrival through applying the latest received clock correction.</p>
    3829 </div>
    3830 <div class="section" id="seeding-optional-if-a-priori-coordinates-specified-in-coordinates-file">
    3831 <h5>Seeding - optional if a priori coordinates specified in &#8216;Coordinates file&#8217;<a class="headerlink" href="#seeding-optional-if-a-priori-coordinates-specified-in-coordinates-file" title="Permalink to this headline">¶</a></h5>
    3832 <p>Enter the length of a startup period in seconds for which you want to fix the PPP solution to a known position, see option &#8216;Coordinates file&#8217;. Constraining a priori coordinates is done in BNC through setting their white &#8216;Noise&#8217; temporarily to zero.</p>
    3833 <p>This so-called Quick-Start option allows the PPP solutions to rapidly converge after startup. It requires that the antenna remains unmoved on the known position throughout the defined period. A value of &#8216;60&#8217; seconds is likely to be an appropriate choice for &#8216;Seeding&#8217;. Default is an empty option field, meaning that you do not want BNC to start in Quick-Start mode.</p>
    3834 <p>You may need to create your own reference coordinate beforehand through running BNC for an hour in normal mode before applying the &#8216;Seeding&#8217; option. Do not forget to introduce realistic North/East/Up sigmas under panel &#8216;PPP (2)&#8217; corresponding to the coordinate&#8217;s precision.</p>
    3835 <p>&#8216;Seeding&#8217; has also a function for bridging gaps in PPP solutions from failures caused e.g. by longer lasting outages. Should the time span between two consecutive solutions exceed the limit of 60 seconds (maximum solution gap, hard-wired), the algorithm fixes the latest derived coordinate for a period of &#8216;Seeding&#8217; seconds. This option avoids time-consuming reconvergences and makes especially sense for stationary operated receivers where convergence can be enforced because a good approximation for the receiver position is known.</p>
    3836 <p><a class="reference internal" href="#fig-25"><span class="std std-numref">Fig. 27</span></a> provides the screenshot of an example PPP session with BNC showing the beginning of a time series plot when seeding is set to 30 seconds..</p>
    3837 <div class="figure" id="id50">
    3838 <span id="fig-25"></span><a class="reference internal image-reference" href="_images/fig_25.png"><img alt="_images/fig_25.png" src="_images/fig_25.png" style="width: 1260.0px; height: 740.0px;" /></a>
    3839 <p class="caption"><span class="caption-number">Fig. 27 </span><span class="caption-text">Precise Point Positioning with BNC in &#8216;Quick-Start&#8217; mode, PPP Panel 4</span></p>
    3840 </div>
    3841 </div>
    3842 </div>
    3843 <div class="section" id="ppp-4-plots">
    3844 <span id="index-36"></span><h4>PPP (4): Plots<a class="headerlink" href="#ppp-4-plots" title="Permalink to this headline">¶</a></h4>
    3845 <p>This panel presents options for visualizing PPP results as a time series plot or as a track map with PPP tracks on top of OSM or Google maps.</p>
    3846 <div class="section" id="ppp-plot-optional">
    3847 <h5>PPP Plot - optional<a class="headerlink" href="#ppp-plot-optional" title="Permalink to this headline">¶</a></h5>
    3848 <p>PPP time series of North (red), East (green) and Up (blue) displacements will be plotted under the &#8216;PPP Plot&#8217; tab when a &#8216;Mountpoint&#8217; is specified. Values will be referred to an XYZ reference coordinate (if specified, see &#8216;Coordinates file&#8217;). The sliding PPP time series window will cover the period of the latest 5 minutes. Note that a PPP dicplacements time series makes only sense for a stationary operated receiver.</p>
    3849 </div>
    3850 <div class="section" id="audio-response-optional">
    3851 <h5>Audio Response - optional<a class="headerlink" href="#audio-response-optional" title="Permalink to this headline">¶</a></h5>
    3852 <p>For natural hazard prediction and monitoring landslides, it may be appropriate to generate audio alerts. For that you can specify an &#8216;Audio response&#8217; threshold in meters. A beep is produced by BNC whenever a horizontal PPP coordinate component differs by more than the threshold value from the specified marker coordinate. Default is an empty option field, meaning that you do not want BNC to produce acoustic warnings.</p>
    3853 </div>
    3854 <div class="section" id="track-map-optional">
    3855 <h5>Track Map - optional<a class="headerlink" href="#track-map-optional" title="Permalink to this headline">¶</a></h5>
    3856 <p>You may like to track your rover position using Google Maps or OpenStreetMap as a background map. Track maps (example <a class="reference internal" href="#fig-26"><span class="std std-numref">Fig. 28</span></a>) can be produced with BNC in &#8216;Real-time Streams&#8217; mode or in &#8216;RINEX Files&#8217; post processing mode with data coming from files.</p>
    3857 <div class="figure" id="id51">
    3858 <span id="fig-26"></span><a class="reference internal image-reference" href="_images/fig_26.png"><img alt="_images/fig_26.png" src="_images/fig_26.png" style="width: 999.0px; height: 743.0px;" /></a>
    3859 <p class="caption"><span class="caption-number">Fig. 28 </span><span class="caption-text">Track of positions from BNC with Google Maps in background</span></p>
    3860 </div>
    3861 </div>
    3862 <div class="section" id="google-osm-mandatory-before-pushing-open-map">
    3863 <h5>Google/OSM - mandatory before pushing &#8216;Open Map&#8217;<a class="headerlink" href="#google-osm-mandatory-before-pushing-open-map" title="Permalink to this headline">¶</a></h5>
    3864 <p>Select either &#8216;Google&#8217; or &#8216;OSM&#8217; as the background map for your rover positions <a class="reference internal" href="#fig-27"><span class="std std-numref">(Fig. 29)</span></a>.</p>
    3865 <div class="figure" id="id52">
    3866 <span id="fig-27"></span><a class="reference internal image-reference" href="_images/fig_27.png"><img alt="_images/fig_27.png" src="_images/fig_27.png" style="width: 999.0px; height: 513.0px;" /></a>
    3867 <p class="caption"><span class="caption-number">Fig. 29 </span><span class="caption-text">Example for background map from Google Maps and OpenStreetMap (OSM)</span></p>
    3868 </div>
    3869 </div>
    3870 <div class="section" id="dot-properties-mandatory-before-pushing-open-map">
    3871 <h5>Dot-properties - mandatory before pushing &#8216;Open Map&#8217;<a class="headerlink" href="#dot-properties-mandatory-before-pushing-open-map" title="Permalink to this headline">¶</a></h5>
    3872 <p>PPP tracks are presented on maps through plotting one colored dot per observation epoch.</p>
    3873 </div>
    3874 <div class="section" id="size-mandatory-before-pushing-open-map">
    3875 <h5>Size - mandatory before pushing &#8216;Open Map&#8217;<a class="headerlink" href="#size-mandatory-before-pushing-open-map" title="Permalink to this headline">¶</a></h5>
    3876 <p>Specify the size of dots showing the rover position. A dot size of &#8216;3&#8217; may be appropriate. The maximum possible dot size is &#8216;10&#8217;. An empty option field or a size of &#8216;0&#8217; would mean that you do not want BNC to show the rover&#8217;s track on the map.</p>
    3877 </div>
    3878 <div class="section" id="color-mandatory-before-pushing-open-map">
    3879 <h5>Color - mandatory before pushing &#8216;Open Map&#8217;<a class="headerlink" href="#color-mandatory-before-pushing-open-map" title="Permalink to this headline">¶</a></h5>
    3880 <p>Select the color of dots showing the rover track.</p>
    3881 </div>
    3882 <div class="section" id="post-processing-speed-mandatory-before-pushing-open-map">
    3883 <h5>Post Processing Speed - mandatory before pushing &#8216;Open Map&#8217;<a class="headerlink" href="#post-processing-speed-mandatory-before-pushing-open-map" title="Permalink to this headline">¶</a></h5>
    3884 <p>With BNC in PPP &#8216;RINEX File&#8217; post processing mode, you can specify the speed of computations as appropriate for visualization. Note that you can adjust &#8216;Post-processing speed&#8217; on-the-fly while BNC is already processing your observations.</p>
    3885 </div>
    3886 </div>
    3887 </div>
    3888 <div class="section" id="combine-corrections">
    3889 <span id="index-37"></span><h3>Combine Corrections<a class="headerlink" href="#combine-corrections" title="Permalink to this headline">¶</a></h3>
    3890 <p>BNC allows processing several orbit and clock correction streams in real-time to produce, encode, upload and save a combination of Broadcast Corrections from various providers. All corrections must refer to satellite Antenna Phase Centers (APC). It is so far only the satellite clock corrections which are combined by BNC while orbit corrections in the combination product as well as product update rates are just taken over from one of the incoming Broadcast Correction streams. Combining only clock corrections using a fixed orbit reference imposes the potential to introduce some analysis inconsistencies. We may therefore eventually consider improvements on this approach. The clock combination can be based either on a plain &#8216;Single-Epoch&#8217; or on a Kalman &#8216;Filter&#8217; approach.</p>
    3891 <p>In the Kalman Filter approach, satellite clocks estimated by individual Analyses Centers (ACs) are used as pseudo observations within the adjustment process. Each observation is modeled as a linear function (actually a simple sum) of three estimated parameters: AC specific offset, satellite specific offset common to all ACs, and the actual satellite clock correction, which represents the result of the combination. These three parameter types differ in their statistical properties. The satellite clock offsets are assumed to be static parameters while AC specific and satellite specific offsets are stochastic parameters affected by white noise.</p>
    3892 <p>The solution is regularized by a set of minimal constraints. In case of a change of the &#8216;SSR Provider ID&#8217;, &#8216;SSR Solution ID&#8217;, or &#8216;IOD SSR&#8217; (see section &#8216;Upload Corrections&#8217;), the satellite clock offsets belonging to the corresponding analysis center are reset in the adjustment.</p>
    3893 <p>Removing the AC-dependent biases as well as possible is a major issue with clock combinations. Since they vary in time, it can be tricky to do this. Otherwise, there will be artificial jumps in the combined clock stream if one or more AC contributions drop out for certain epochs. Here the Kalman Filter approach is expected to do better than the Single-Epoch approach.</p>
    3894 <p>In view of IGS real-time products, the &#8216;Combine Corrections&#8217; functionality has been integrated in BNC <a class="reference internal" href="bnchelp.html#mervart2011a" id="id12">[10]</a> because:</p>
    3895 <ul class="simple">
     3565</p>
     3566
     3567<p><h4>2.13.3.4 <a name="pppeleweight">Elevation Dependent Weighting - mandatory</h4></p>
     3568<p>
     3569BNC allows elevation dependent weighting when processing GNSS observations. A weight function
     3570</p>
     3571
     3572<p>&nbsp; &nbsp; &nbsp; P = cos&sup2; * z</p>
     3573
     3574<p>
     3575with 'z' being the zenith distance to the involved satellite can be applied instead of the simple weight function 'P = 1' independent from satellite elevation angles.
     3576</p>
     3577<ul>
     3578<li>Tick 'Ele Wgt Code' if you want Elevation Dependent Weighting for code observations.</li>
     3579<li>Tick 'Ele Wgt Phase' if you want Elevation Dependent Weighting for phase observations.</li>
     3580</ul>
     3581<p>
     3582Default is using the plain weight function 'P = 1' for code and phase observations.
     3583</p>
     3584
     3585<p><h4>2.13.3.5 <a name="pppminobs">Minimum Number of Observations - mandatory</h4></p>
     3586<p>
     3587Select the minimum number of observations you want to use per epoch. The minimum for parameter 'Min # of Obs' is 4. This is also the default.
     3588</p>
     3589
     3590<p><h4>2.13.3.6 <a name="pppmineleva">Minimum Elevation - mandatory</h4></p>
     3591<p>
     3592Select a minimum for satellite elevation angles. Selecting '10 deg' for option 'Min Elevation' may be an appropriate choice.
     3593</p>
     3594<p>
     3595Default is '0 deg', meaning that any observation will be used regardless of the involved satellite elevation angle.
     3596</p>
     3597
     3598<p><h4>2.13.3.7 <a name="pppwaitclockcorr">Wait for Clock Corrections - optional</h4></p>
     3599<p>
     3600Specifying 'no' for option 'Wait for clock corr.' means that BNC processes each epoch of data immediately after its arrival using satellite clock corrections available at that time. A non-zero value means that epochs of data are buffered and the processing of each epoch is postponed until satellite clock corrections not older than 'Wait for clock corr.' seconds are available. Specifying a value of half the update rate of the clock corrections (e.g. 5 sec) may be appropriate. Note that this causes an additional delay of the PPP solutions in the amount of half of the update rate.
     3601</p>
     3602<p>
     3603Using observations in sync with the corrections can avoid a possible high frequency noise of PPP solutions. Such noise could result from processing observations regardless of how late after a clock correction they were received. Note that applying the 'Wait for clock corr.' option significantly reduces the PPP computation effort for BNC.
     3604</p>
     3605<p>
     3606Default is an empty option field, meaning that you want BNC to process observations immediately after their arrival through applying the latest received clock correction.
     3607</p>
     3608
     3609<p><h4>2.13.3.8 <a name="pppseeding">Seeding - optional if a priori coordinates specified in 'Coordinates file'</h4></p>
     3610<p>
     3611Enter the length of a startup period in seconds for which you want to fix the PPP solution to a known position, see option 'Coordinates file'. Constraining a priori coordinates is done in BNC through setting their white 'Noise' temporarily to zero.
     3612</p>
     3613<p>
     3614This so-called <u>Quick-Start</u> option allows the PPP solutions to rapidly converge after startup. It requires that the antenna remains unmoved on the known position throughout the defined period. A value of '60' seconds is likely to be an appropriate choice for 'Seeding'. Default is an empty option field, meaning that you do not want BNC to start in Quick-Start mode.
     3615<p>
     3616You may need to create your own reference coordinate beforehand through running BNC for an hour in normal mode before applying the 'Seeding' option. Do not forget to introduce realistic North/East/Up sigmas under panel 'PPP (2)' corresponding to the coordinate's precision.
     3617</p>
     3618
     3619<p>
     3620'Seeding' has also a function for <u>bridging gaps</u> in PPP solutions from failures caused e.g. by longer lasting outages. Should the time span between two consecutive solutions exceed the limit of 60 seconds (maximum solution gap, hard-wired), the algorithm fixes the latest derived coordinate for a period of 'Seeding' seconds. This option avoids time-consuming reconvergences and makes especially sense for stationary operated receivers where convergence can be enforced because a good approximation for the receiver position is known. 
     3621</p>
     3622
     3623<p>
     3624The following figure provides the screenshot of an example PPP session with BNC.
     3625</p>
     3626
     3627<p><img src="IMG/screenshot22.png"/></p>
     3628<p><u>Figure 25:</u> Precise Point Positioning with BNC in 'Quick-Start' mode, PPP Panel 4</p>
     3629
     3630<p><h4>2.13.4 <a name="pppPlots">PPP (4): Plots</h4></p>
     3631<p>
     3632This panel presents options for visualizing PPP results as a time series plot or as a track map with PPP tracks on top of OSM or Google maps.
     3633</p>
     3634
     3635<p><h4>2.13.4.1 <a name="ppptimeseries">PPP Plot - optional</h4></p>
     3636<p>
     3637PPP time series of North (red), East (green) and Up (blue) displacements will be plotted under the 'PPP Plot' tab when a 'Mountpoint' is specified. Values will be referred to an XYZ reference coordinate (if specified, see 'Coordinates file'). The sliding PPP time series window will cover the period of the latest 5 minutes.
     3638</p>
     3639<p>
     3640Note that a PPP dicplacements time series makes only sense for a stationary operated receiver.
     3641</p>
     3642
     3643<p><h4>2.13.4.2 <a name="pppaudioresp">Audio Response - optional</h4></p>
     3644<p>
     3645For natural hazard prediction and monitoring landslides, it may be appropriate to generate audio alerts. For that you can specify an 'Audio response' threshold in meters. A beep is produced by BNC whenever a horizontal PPP coordinate component differs by more than the threshold value from the specified marker coordinate.
     3646</p>
     3647<p>
     3648Default is an empty option field, meaning that you do not want BNC to produce acoustic warnings.
     3649</p>
     3650
     3651<p><h4>2.13.4.3 <a name="ppptrackmap">Track Map - optional</h4></p>
     3652<p>
     3653You may like to track your rover position using Google Maps or OpenStreetMap as a background map. Track maps can be produced with BNC in 'Real-time Streams' mode or in 'RINEX Files' post processing mode with data coming from files.
     3654</p>
     3655<p>
     3656Even when in 'RINEX Files' post processing mode, you should not forget to go online with your host and specify a proxy under the 'Network' panel if that is operated in front of BNC.
     3657</p>
     3658<p>
     3659The 'Open Map' button opens a window showing a map according to the selected 'Google/OSM' option.
     3660</p>
     3661
     3662<p><img src="IMG/screenshot32.png"/></p>
     3663<p><u>Figure 26:</u> Track of positions from BNC with Google Maps in background</p>
     3664
     3665<p><h4>2.13.4.3.1 <a name="pppmaptype">Google/OSM - mandatory before pushing 'Open Map'</h4></p>
     3666<p>
     3667Select either 'Google' or 'OSM' as the background map for your rover positions.
     3668</p>
     3669
     3670<p><img src="IMG/screenshot41.png"/></p>
     3671<p><u>Figure 27:</u> Example for background map from Google Maps and OpenStreetMap (OSM)</p>
     3672
     3673<p><h4>2.13.4.4 <a name="pppdotprop">Dot-properties - mandatory before pushing 'Open Map'</h4></p>
     3674<p>
     3675PPP tracks are presented on maps through plotting one colored dot per observation epoch.
     3676</p>
     3677
     3678<p><h4>2.13.4.4.1 <a name="pppdotsize">Size - mandatory before pushing 'Open Map'</h4></p>
     3679<p>
     3680Specify the size of dots showing the rover position. A dot size of '3' may be appropriate. The maximum possible dot size is '10'. An empty option field or a size of '0' would mean that you do not want BNC to show the rover's track on the map.
     3681</p>
     3682
     3683<p><h4>2.13.4.4.2 <a name="pppdotcolor">Color - mandatory before pushing 'Open Map'</h4></p>
     3684<p>
     3685Select the color of dots showing the rover track.
     3686</p>
     3687
     3688<p><h4>2.13.4.5 <a name="pppspeed">Post Processing Speed - mandatory before pushing 'Open Map'</h4></p>
     3689<p>
     3690With BNC in PPP 'RINEX File' post processing mode, you can specify the speed of computations as appropriate for visualization. Note that you can adjust 'Post-processing speed' on-the-fly while BNC is already processing your observations.
     3691</p>
     3692
     3693<p><h4>2.14 <a name="combi">Combine Corrections</h4></p>
     3694<p>
     3695BNC allows processing several orbit and clock correction streams in real-time to produce, encode, upload and save a combination of Broadcast Corrections from various providers. All corrections must refer to satellite Antenna Phase Centers (APC). It is so far only the satellite clock corrections which are combined by BNC while orbit corrections in the combination product as well as product update rates are just taken over from one of the incoming Broadcast Correction streams. Combining only clock corrections using a fixed orbit reference imposes the potential to introduce some analysis inconsistencies. We may therefore eventually consider improvements on this approach. The clock combination can be based either on a plain 'Single-Epoch' or on a Kalman 'Filter' approach.
     3696</p>
     3697<p>
     3698In the Kalman Filter approach, satellite clocks estimated by individual Analyses Centers (ACs) are used as pseudo observations within the adjustment process. Each observation is modeled as a linear function (actually a simple sum) of three estimated parameters: AC specific offset, satellite specific offset common to all ACs, and the actual satellite clock correction, which represents the result of the combination. These three parameter types differ in their statistical properties. The satellite clock offsets are assumed to be static parameters while AC specific and satellite specific offsets are stochastic parameters affected by white noise.
     3699</p>
     3700<p>
     3701The solution is regularized by a set of minimal constraints. In case of a change of the 'SSR Provider ID', 'SSR Solution ID', or 'IOD SSR' (see section 'Upload Corrections'), the satellite clock offsets belonging to the corresponding analysis center are reset in the adjustment.
     3702</p>
     3703<p>
     3704Removing the AC-dependent biases as well as possible is a major issue with clock combinations. Since they vary in time, it can be tricky to do this. Otherwise, there will be artificial jumps in the combined clock stream if one or more AC contributions drop out for certain epochs. Here the Kalman Filter approach is expected to do better than the Single-Epoch approach.
     3705</p>
     3706<p>
     3707In view of IGS real-time products, the 'Combine Corrections' functionality has been integrated in BNC (Weber and Mervart 2010) because
     3708<ul>
    38963709<li>The software with its Graphic User Interface and range of supported Operating Systems represents a perfect platform to process many Broadcast Correction streams in parallel;</li>
    38973710<li>Outages of single AC product streams can be mitigated through merging several incoming streams into a combined product;</li>
    … …  
    39033716<li>It provides the means to output SP3 and Clock RINEX files containing precise orbit and clock information for further processing using other tools than BNC.</li>
    39043717</ul>
    3905 <p>Note that the combination process requires real-time access to Broadcast Ephemeris. Therefore, in addition to the orbit and clock correction streams BNC must pull a stream carrying Broadcast Ephemeris in the form of RTCM Version 3 messages. Stream &#8216;RTCM3EPH&#8217; on caster products.igs-ip.net is an example for that. Note further that BNC will ignore incorrect or outdated Broadcast Ephemeris data when necessary, leaving a note &#8216;WRONG EPHEMERIS&#8217; or &#8216;OUTDATED EPHEMERIS&#8217; in the logfile.</p>
    3906 <p>A combination is carried out following a specified sampling interval. BNC waits for incoming Broadcast Corrections for the period of one such interval. Corrections received later than that will be ignored. If incoming streams have different rates, only epochs that correspond to the sampling interval are used.</p>
    3907 <p>With respect to IGS, it is important to understand that a major effect in the combination of GNSS orbit and clock correction streams is the selection of ACs to include. It is likely that a combination product could be improved in accuracy by using only the best two or three ACs. However, with only a few ACs to depend on, the reliability of the combination product could suffer and the risk of total failures increases. So there is an important tradeoff here that must be considered when selecting streams for a combination. The major strength of a combination product is its reliability and stable median performance which can be much better than that of any single AC product.</p>
    3908 <p>This comment applies in situations where we have a limited number of solutions to combine and their quality varies significantly. The situation may be different when the total number of ACs is larger and the range of AC variation is smaller. In that case, a standard full combination is probably the best.</p>
    3909 <p>The following recursive algorithm is used to detect orbit outliers in the Kalman Filter combination when Broadcast Corrections are provided by several ACs:</p>
    3910 <ol class="arabic simple">
    3911 <li>We do not produce a combination for a certain satellite if only one AC provides corrections for it.</li>
    3912 <li>A mean satellite position is calculated as the average of positions from all ACs.</li>
    3913 <li>For each AC and satellite, the 3D distance between individual and mean satellite position is calculated.</li>
    3914 <li>We find the greatest difference between AC specific and mean satellite positions.</li>
    3915 <li>If that is less than a threshold, the conclusion is that we do not have an outlier and can proceed to the next epoch.</li>
    3916 <li>If that is greater than a threshold, then corrections of the affiliated AC are ignored for the affected epoch and the outlier detection restarts with 1.</li>
     3718</p>
     3719<p>
     3720Note that the combination process requires real-time access to Broadcast Ephemeris. Therefore, in addition to the orbit and clock correction streams BNC must pull a stream carrying Broadcast Ephemeris in the form of RTCM Version 3 messages. Stream 'RTCM3EPH' on caster <u>products.igs-ip.net</u> is an example for that. Note further that BNC will ignore incorrect or outdated Broadcast Ephemeris data when necessary, leaving a note 'WRONG EPHEMERIS' or 'OUTDATED EPHEMERIS' in the logfile.
     3721</p>
     3722
     3723<p>
     3724A combination is carried out following a specified sampling interval. BNC waits for incoming Broadcast Corrections for the period of one such interval. Corrections received later than that will be ignored. If incoming streams have different rates, only epochs that correspond to the sampling interval are used.
     3725</p>
     3726
     3727<p>
     3728With respect to IGS, it is important to understand that a major effect in the combination of GNSS orbit and clock correction streams is the selection of ACs to include. It is likely that a combination product could be improved in accuracy by using only the best two or three ACs. However, with only a few ACs to depend on, the reliability of the combination product could suffer and the risk of total failures increases. So there is an important tradeoff here that must be considered when selecting streams for a combination. The major strength of a combination product is its reliability and stable median performance which can be much better than that of any single AC product.
     3729</p>
     3730<p>
     3731This comment applies in situations where we have a limited number of solutions to combine and their quality varies significantly. The situation may be different when the total number of ACs is larger and the range of AC variation is smaller. In that case, a standard full combination is probably the best.
     3732</p>
     3733<p>
     3734The following recursive algorithm is used to detect orbit outliers in the Kalman Filter combination when Broadcast Corrections are provided by several ACs:
     3735<br>
     3736Step 1: We do not produce a combination for a certain satellite if only one AC provides corrections for it.
     3737<br>
     3738Step 2: A mean satellite position is calculated as the average of positions from all ACs.
     3739<br>
     3740Step 3: For each AC and satellite, the 3D distance between individual and mean satellite position is calculated.
     3741<br>
     3742Step 4: We find the greatest difference between AC specific and mean satellite positions.
     3743<br>
     3744Step 5: If that is less than a threshold, the conclusion is that we do not have an outlier and can proceed to the next epoch.
     3745<br>
     3746Step 6: If that is greater than a threshold, then corrections of the affiliated AC are ignored for the affected epoch and the outlier detection restarts with step 1.
     3747</p>
     3748<p>
     3749The following screenshot shows an example setup of BNC when combining Broadcast Correction streams CLK11, CLK21, CLK91, and CLK80.
     3750</p>
     3751
     3752<p><img src="IMG/screenshot20.png"/></p>
     3753<p><u>Figure 28:</u> BNC combining Broadcast Correction streams</p>
     3754<p></p>
     3755<p>
     3756Note that BNC can produce an internal PPP solution from combined Broadcast Corrections. For that you have to specify the keyword 'INTERNAL' as 'Corrections stream' in the PPP (1) panel. The following example combines correction streams IGS01 and IGS02 and simultaneously carries out a PPP solution with observations from stream FFMJ1 to allow monitoring the quality of the combination product in the space domain.
     3757</p>
     3758<p><img src="IMG/screenshot23.png"/></p>
     3759<p><u>Figure 29:</u> 'INTERNAL' PPP with BNC using a combination of Broadcast Corrections</p>
     3760
     3761<p><h4>2.14.1 <a name="combimounttab">Combine Corrections Table - optional</h4></p>
     3762<p>
     3763Hit the 'Add Row' button, double click on the 'Mountpoint' field, enter a Broadcast Correction mountpoint from the 'Streams' section and hit Enter. Then double click on the 'AC Name' field to enter your choice of an abbreviation for the Analysis Center (AC) providing the Antenna Phase Center (APC) related correction stream. Finally, double click on the 'Weight' field to enter a weight to be applied to this stream in the combination.
     3764</p>
     3765<p>
     3766The sequence of entries in the 'Combine Corrections' table is not of importance. Note that the orbit information in the final combination stream is just copied from one of the incoming streams. The stream used for providing the orbits may vary over time: if the orbit-providing stream has an outage then BNC switches to the next remaining stream for getting hold of the orbit information.</p>
     3767<p>
     3768It is possible to specify only one Broadcast Ephemeris correction stream in the 'Combine Corrections' table. Instead of combining corrections from several sources, BNC will then merge the single corrections stream with Broadcast Ephemeris to allow saving results in SP3 and/or Clock RINEX format when specified accordingly under the 'Upload Corrections' panel. Note that in such a BNC application you must not pull more than one Broadcast Ephemeris correction stream even if a second stream would provide the same corrections from a backup caster.
     3769</p>
     3770<p>
     3771Default is an empty 'Combine Corrections' table, meaning that you do not want BNC to combine orbit and clock correction streams.
     3772</p>
     3773
     3774<p><h4>2.14.1.1 <a name="combiadd">Add Row, Delete - optional</h4></p>
     3775<p>
     3776Hit 'Add Row' button to add another row to the 'Combine Corrections' table or hit the 'Delete' button to delete the highlighted row(s).
     3777</p>
     3778
     3779<p><h4>2.14.1.2 <a name="combimethod">Method - mandatory if 'Combine Corrections' table is populated</h4></p>
     3780<p>
     3781Select a clock combination method. Available options are Kalman 'Filter' and 'Single-Epoch. It is suggested to use the Kalman Filter approach in case the combined stream of Broadcast Corrections is intended for Precise Point Positioning.
     3782</p>
     3783
     3784<p><h4>2.14.1.3 <a name="combimax">Maximal Residuum - mandatory if 'Combine Corrections' table is populated</h4></p>
     3785
     3786<p>BNC combines all incoming clocks according to specified weights. Individual clock estimates that differ by more than 'Maximal Residuum' meters from the average of all clocks will be ignored.<p>
     3787</p>It is suggested to specify a value of about 0.2 m for the Kalman Filter combination approach and a value of about 3.0 meters for the Single-Epoch combination approach.</p>
     3788<p>Default is a 'Maximal Residuum' of 999.0 meters.</p>
     3789
     3790<p><h4>2.14.1.4 <a name="combismpl">Sampling - mandatory if 'Combine Corrections' table is populated</h4></p>
     3791<p>Specify a combination sampling interval. Orbit and clock corrections will be produced following that interval. A value of 10 sec may be an appropriate choice.</p>
     3792
     3793<p><h4>2.14.1.5 <a name="combiGLO">Use GLONASS - optional</h4></p>
     3794<p>
     3795You may tick the 'Use GLONASS' option in case you want to produce a GPS plus GLONASS combination and both systems are supported by the Broadcast Correction streams participating in the combination.
     3796</p>
     3797
     3798<p><h4>2.15 <a name="upclk">Upload Corrections</h4></p>
     3799<p>
     3800BNC can upload streams carrying orbit and clock corrections to Broadcast Ephemeris in radial, along-track and out-of-plane components if they are<ol type=a>
     3801<li>
     3802either generated by BNC as a combination of several individual Broadcast Correction streams coming from an number of real-time Analysis Centers (ACs), see section 'Combine Corrections',</li>
     3803<li>
     3804or generated by BNC while the program receives an ASCII stream of precise satellite orbits and clocks via IP port from a connected real-time GNSS engine. Such a stream would be expected in a plain ASCII format and the associated 'decoder' string would have to be 'RTNET', see format description below. </li>
    39173805</ol>
    3918 <p>The screenshot in <a class="reference internal" href="#fig-28"><span class="std std-numref">Fig. 30</span></a> shows an example setup of BNC when combining Broadcast Correction streams CLK11, CLK21, CLK91, and CLK80.</p>
    3919 <div class="figure" id="id53">
    3920 <span id="fig-28"></span><a class="reference internal image-reference" href="_images/fig_28.png"><img alt="_images/fig_28.png" src="_images/fig_28.png" style="width: 1120.0px; height: 843.0px;" /></a>
    3921 <p class="caption"><span class="caption-number">Fig. 30 </span><span class="caption-text">BNC combining Broadcast Correction streams</span></p>
    3922 </div>
    3923 <p>Note that BNC can produce an internal PPP solution from combined Broadcast Corrections. For that you have to specify the keyword &#8216;INTERNAL&#8217; as &#8216;Corrections stream&#8217; in the PPP (1) panel. The example in <a class="reference internal" href="#fig-29"><span class="std std-numref">Fig. 31</span></a> combines correction streams IGS01 and IGS02 and simultaneously carries out a PPP solution with observations from stream FFMJ1 to allow monitoring the quality of the combination product in the space domain.</p>
    3924 <div class="figure" id="id54">
    3925 <span id="fig-29"></span><a class="reference internal image-reference" href="_images/fig_29.png"><img alt="_images/fig_29.png" src="_images/fig_29.png" style="width: 1000.0px; height: 900.0px;" /></a>
    3926 <p class="caption"><span class="caption-number">Fig. 31 </span><span class="caption-text">&#8216;INTERNAL&#8217; PPP with BNC using a combination of Broadcast Corrections</span></p>
    3927 </div>
    3928 <div class="section" id="combine-corrections-table-optional">
    3929 <h4>Combine Corrections Table - optional<a class="headerlink" href="#combine-corrections-table-optional" title="Permalink to this headline">¶</a></h4>
    3930 <p>Hit the &#8216;Add Row&#8217; button, double click on the &#8216;Mountpoint&#8217; field, enter a Broadcast Correction mountpoint from the &#8216;Streams&#8217; section and hit Enter. Then double click on the &#8216;AC Name&#8217; field to enter your choice of an abbreviation for the Analysis Center (AC) providing the Antenna Phase Center (APC) related correction stream. Finally, double click on the &#8216;Weight&#8217; field to enter a weight to be applied to this stream in the combination.</p>
    3931 <p>The sequence of entries in the &#8216;Combine Corrections&#8217; table is not of importance. Note that the orbit information in the final combination stream is just copied from one of the incoming streams. The stream used for providing the orbits may vary over time: if the orbit-providing stream has an outage then BNC switches to the next remaining stream for getting hold of the orbit information.</p>
    3932 <p>It is possible to specify only one Broadcast Ephemeris correction stream in the &#8216;Combine Corrections&#8217; table. Instead of combining corrections from several sources, BNC will then merge the single corrections stream with Broadcast Ephemeris to allow saving results in SP3 and/or Clock RINEX format when specified accordingly under the &#8216;Upload Corrections&#8217; panel. Note that in such a BNC application you must not pull more than one Broadcast Ephemeris correction stream even if a second stream would provide the same corrections from a backup caster.</p>
    3933 <p>Default is an empty &#8216;Combine Corrections&#8217; table, meaning that you do not want BNC to combine orbit and clock correction streams.</p>
    3934 </div>
    3935 <div class="section" id="add-row-delete-optional">
    3936 <h4>Add Row, Delete - optional<a class="headerlink" href="#add-row-delete-optional" title="Permalink to this headline">¶</a></h4>
    3937 <p>Hit &#8216;Add Row&#8217; button to add another row to the &#8216;Combine Corrections&#8217; table or hit the &#8216;Delete&#8217; button to delete the highlighted row(s).</p>
    3938 </div>
    3939 <div class="section" id="method-mandatory-if-combine-corrections-table-is-populated">
    3940 <h4>Method - mandatory if &#8216;Combine Corrections&#8217; table is populated<a class="headerlink" href="#method-mandatory-if-combine-corrections-table-is-populated" title="Permalink to this headline">¶</a></h4>
    3941 <p>Select a clock combination method. Available options are Kalman &#8216;Filter&#8217; and &#8216;Single-Epoch. It is suggested to use the Kalman Filter approach in case the combined stream of Broadcast Corrections is intended for Precise Point Positioning.</p>
    3942 </div>
    3943 <div class="section" id="maximal-residuum-mandatory-if-combine-corrections-table-is-populated">
    3944 <h4>Maximal Residuum - mandatory if &#8216;Combine Corrections&#8217; table is populated<a class="headerlink" href="#maximal-residuum-mandatory-if-combine-corrections-table-is-populated" title="Permalink to this headline">¶</a></h4>
    3945 <p>BNC combines all incoming clocks according to specified weights. Individual clock estimates that differ by more than &#8216;Maximal Residuum&#8217; meters from the average of all clocks will be ignored. It is suggested to specify a value of about 0.2 m for the Kalman Filter combination approach and a value of about 3.0 meters for the Single-Epoch combination approach. Default is a &#8216;Maximal Residuum&#8217; of 999.0 meters.</p>
    3946 </div>
    3947 <div class="section" id="sampling-mandatory-if-combine-corrections-table-is-populated">
    3948 <h4>Sampling - mandatory if &#8216;Combine Corrections&#8217; table is populated<a class="headerlink" href="#sampling-mandatory-if-combine-corrections-table-is-populated" title="Permalink to this headline">¶</a></h4>
    3949 <p>Specify a combination sampling interval. Orbit and clock corrections will be produced following that interval. A value of 10 sec may be an appropriate choice.</p>
    3950 </div>
    3951 <div class="section" id="use-glonass-optional">
    3952 <h4>Use GLONASS - optional<a class="headerlink" href="#use-glonass-optional" title="Permalink to this headline">¶</a></h4>
    3953 <p>You may tick the &#8216;Use GLONASS&#8217; option in case you want to produce a GPS plus GLONASS combination and both systems are supported by the Broadcast Correction streams participating in the combination.</p>
    3954 </div>
    3955 </div>
    3956 <div class="section" id="upload-corrections">
    3957 <span id="index-38"></span><h3>Upload Corrections<a class="headerlink" href="#upload-corrections" title="Permalink to this headline">¶</a></h3>
    3958 <p>BNC can upload streams carrying orbit and clock corrections to Broadcast Ephemeris in radial, along-track and out-of-plane components if they are:</p>
    3959 <ol class="arabic simple">
    3960 <li>either generated by BNC as a combination of several individual Broadcast Correction streams coming from an number of real-time Analysis Centers (ACs), see section &#8216;Combine Corrections&#8217;,</li>
    3961 <li>or generated by BNC while the program receives an ASCII stream of precise satellite orbits and clocks via IP port from a connected real-time GNSS engine. Such a stream would be expected in a plain ASCII format and the associated &#8216;decoder&#8217; string would have to be &#8216;RTNET&#8217;, see format description below.</li>
    3962 </ol>
    3963 <p>The procedure taken by BNC to generate the orbit and clock corrections to Broadcast Ephemeris and upload them to an Ntrip Broadcaster is as follow:</p>
    3964 <ul class="simple">
     3806The procedure taken by BNC to generate the orbit and clock corrections to Broadcast Ephemeris and upload them to an Ntrip Broadcaster is as follow:
     3807<ul>
    39653808<li>Continuously receive up-to-date Broadcast Ephemeris carrying approximate orbits and clocks for all satellites. Read new Broadcast Ephemeris immediately whenever they become available. This information may come via a stream of RTCM messages generated from another BNC instance.</li>
    39663809</ul>
    3967 <p>Then, epoch by epoch:</p>
    3968 <ul class="simple">
    3969 <li>Continuously receive the best available orbit and clock estimates for all satellites in XYZ Earth-Centered-Earth-Fixed IGS08 reference system. Receive them every epoch in plain ASCII format as provided by a real-time GNSS engine such as RTNET or generate them following a combination approach.</li>
    3970 <li>Calculate XYZ coordinates from Broadcast Ephemeris orbits.</li>
    3971 <li>Calculate differences dX,dY,dZ between Broadcast Ephemeris and IGS08 orbits.</li>
    3972 <li>Transform these differences into radial, along-track and out-of-plane corrections to Broadcast Ephemeris orbits.</li>
    3973 <li>Calculate corrections to Broadcast Ephemeris clocks as differences between Broadcast Ephemeris clocks and IGS08 clocks.</li>
    3974 <li>Encode Broadcast Ephemeris orbit and clock corrections in RTCM Version 3 format.</li>
    3975 <li>Upload Broadcast Correction stream to Ntrip Broadcaster.</li>
    3976 </ul>
    3977 <p>The orbit and clock corrections to Broadcast Ephemeris are usually referred to the latest set of broadcast messages, which are generally also received in real-time by a GNSS rover. However, the use of the latest broadcast message is delayed for a period of 60 seconds, measured from the time of complete reception of ephemeris and clock parameters, in order to accommodate rover applications to obtain the same set of broadcast orbital and clock parameters. This procedure is recommended in the RTCM SSR standard. Because the stream delivery process may put a significant load on the communication link between BNC and the real-time GNSS engine, it is recommended to run both programs on the same host. However, doing so is not compulsory.</p>
    3978 <p>The usual handling of BNC when uploading a stream with Broadcast Corrections is that you first specify Broadcast Ephemeris and Broadcast Correction streams. You then specify an Ntrip Broadcaster for stream upload before you start the program.</p>
    3979 <p id="index-39"><strong>&#8216;RTNET&#8217; Stream Format</strong></p>
    3980 <p>When uploading an SSR stream generated according to 2. then BNC requires precise GNSS orbits and clocks in the IGS Earth-Centered-Earth-Fixed (ECEF) reference system and in a specific ASCII format named &#8216;RTNET&#8217; because the data may come from a real-time engine such as RTNET. The sampling interval for data transmission should not exceed 15 sec. Note that otherwise tools involved in IP streaming such as Ntrip Broadcasters or Ntrip Clients may respond with a timeout.</p>
    3981 <p>Below you find an example for the &#8216;RTNET&#8217; ASCII format coming from a real-time GNSS engine. Each epoch begins with an asterisk character followed by the time as year, month, day of month, hour, minute and second. Subsequent records can provide</p>
    3982 <div class="highlight-none"><div class="highlight"><pre>* 2015 6 11 15 10 40.000000
    3983 </pre></div>
    3984 </div>
    3985 <p>Subsequent records can provide</p>
    3986 <ul class="simple">
    3987 <li>Satellite specific parameters</li>
    3988 </ul>
    3989 <p>A set of parameters can be defined for each satellite as follows:</p>
    3990 <div class="highlight-console"><div class="highlight"><pre><span class="go">&lt;SatelliteID&gt; &lt;key&gt; &lt;numValues&gt; &lt;value1 value2 ...&gt;</span>
    3991 <span class="go">              &lt;key&gt; &lt;numValues&gt; &lt;value1 value2 ...&gt; ...</span>
    3992 </pre></div>
    3993 </div>
    3994 <p>The satellite specific keys and values currently specified for that in BNC are listed in <a class="reference internal" href="#tab-sat-spec-parameter-keys"><span class="std std-numref">Table 10</span></a>.</p>
    3995 <table border="1" class="docutils" id="id55">
    3996 <span id="tab-sat-spec-parameter-keys"></span><caption><span class="caption-number">Table 10 </span><span class="caption-text">Keys for satellite specific parameters used in BNC.</span><a class="headerlink" href="#id55" title="Permalink to this table">¶</a></caption>
    3997 <colgroup>
    3998 <col width="4%" />
    3999 <col width="96%" />
    4000 </colgroup>
    4001 <thead valign="bottom">
    4002 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    4003 <th class="head"><strong>Values</strong></th>
    4004 </tr>
    4005 </thead>
    4006 <tbody valign="top">
    4007 <tr class="row-even"><td>APC</td>
    4008 <td>Satellite Antenna Phase Center coordinates in meters</td>
    4009 </tr>
    4010 <tr class="row-odd"><td>Clk</td>
    4011 <td>Satellite clock correction in meters, relativistic correction applied like in broadcast clocks</td>
    4012 </tr>
    4013 <tr class="row-even"><td>Vel</td>
    4014 <td>Satellite velocity in meters per second</td>
    4015 </tr>
    4016 <tr class="row-odd"><td>CoM</td>
    4017 <td>Satellite Center of Mass coordinates in meters</td>
    4018 </tr>
    4019 <tr class="row-even"><td>CodeBias</td>
    4020 <td>Satellite Code Biases in meters with two characters for frequency and tracking mode per bias as defined in RINEX 3 and preceded by total number of biases</td>
    4021 </tr>
    4022 <tr class="row-odd"><td>YawAngle</td>
    4023 <td>Satellite Yaw Angle in radian, restricted to be in [0, 2π] which shall be used for the computation of phase wind-up correction</td>
    4024 </tr>
    4025 <tr class="row-even"><td>YawRate</td>
    4026 <td>Satellite Yaw Rate in radian per second which is the rate of Yaw Angle</td>
    4027 </tr>
    4028 <tr class="row-odd"><td>PhaseBias</td>
    4029 <td>Satellite Phase Biases in meters with two characters for frequency and tracking mode per bias as defined in RINEX 3, preceded by total number of biases and followed by Signal Integer Indicator, Signals Wilde-Lane Integer Indicator as well as Signal Discontinuity Counter</td>
    4030 </tr>
    4031 </tbody>
     3810Then, epoch by epoch:
     3811<ul>
     3812<li>Continuously receive the best available orbit and clock estimates for all satellites in XYZ Earth-Centered-Earth-Fixed IGS08 reference system. Receive them every epoch in plain ASCII format as provided by a real-time GNSS engine such as RTNET or generate them following a combination approach. </li>
     3813<li>Calculate XYZ coordinates from Broadcast Ephemeris orbits. </li>
     3814<li>Calculate differences dX,dY,dZ between Broadcast Ephemeris and IGS08 orbits. </li>
     3815<li>Transform these differences into radial, along-track and out-of-plane corrections to Broadcast Ephemeris orbits. </li>
     3816<li>Calculate corrections to Broadcast Ephemeris clocks as differences between Broadcast Ephemeris clocks and IGS08 clocks. </li>
     3817<li>Encode Broadcast Ephemeris orbit and clock corrections in RTCM Version 3 format. </li>
     3818<li>Upload Broadcast Correction stream to Ntrip Broadcaster. </li>
     3819</ul>
     3820<p>
     3821The orbit and clock corrections to Broadcast Ephemeris are usually referred to the latest set of broadcast messages, which are generally also received in real-time by a GNSS rover. However, the use of the latest broadcast message is delayed for a period of 60 seconds, measured from the time of complete reception of ephemeris and clock parameters, in order to accommodate rover applications to obtain the same set of broadcast orbital and clock parameters. This procedure is recommended in the RTCM SSR standard.
     3822</p>
     3823</p>
     3824Because the stream delivery process may put a significant load on the communication link between BNC and the real-time GNSS engine, it is recommended to run both programs on the same host. However, doing so is not compulsory.
     3825</p>
     3826<p>
     3827The usual handling of BNC when uploading a stream with Broadcast Corrections is that you first specify Broadcast Ephemeris and Broadcast Correction streams. You then specify an Ntrip Broadcaster for stream upload before you start the program.
     3828</p>
     3829<p>
     3830<u>'RTNET' Stream Format</u><br>
     3831When uploading an SSR stream generated according to (b) then BNC requires precise GNSS orbits and clocks in the IGS Earth-Centered-Earth-Fixed (ECEF) reference system and in a specific ASCII format named 'RTNET' because the data may come from a real-time engine such as RTNET. The sampling interval for data transmission should not exceed 15 sec. Note that otherwise tools involved in IP streaming such as Ntrip Broadcasters or Ntrip Clients may respond with a timeout.
     3832</p>
     3833<p>
     3834Below you find an example for the 'RTNET' ASCII format coming from a real-time GNSS engine. Each epoch begins with an asterisk character followed by the time as year, month, day of month, hour, minute and second. Subsequent records can provide
     3835</p>
     3836<p>
     3837<ul>
     3838<li>Satellite specific parameters </li>
     3839</ul>
     3840</p>
     3841<p>
     3842A set of parameters can be defined for each satellite as follows:
     3843<pre>
     3844&lt;SatelliteID&gt; &lt;key&gt; &lt;numValues&gt; &lt;value1 value2 ...&gt;
     3845              &lt;key&gt; &lt;numValues&gt; &lt;value1 value2 ...&gt; ... &nbsp;
     3846</pre>
     3847The following satellite specific keys and values are currently specified for that in BNC:<br><br>
     3848<table>
     3849<tr><td><i>Key&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</i></td><td><i>Values</i></td></tr>
     3850<tr><td>APC</td><td>Satellite Antenna Phase Center coordinates in meters</td></tr>
     3851<tr><td>Clk</td><td>Satellite clock correction in meters, relativistic correction applied like in broadcast clocks</td></tr>
     3852<tr><td>Vel</td><td>Satellite velocity in meters per second</td></tr>
     3853<tr><td>CoM</td><td>Satellite Center of Mass coordinates in meters</td></tr>
     3854<tr><td>CodeBias</td><td>Satellite Code Biases in meters with two characters for frequency and tracking mode per bias as defined in RINEX 3 and preceded by total number of biases</td></tr>
     3855<tr><td>YawAngle</td><td>Satellite Yaw Angle in radian, restricted to be in [0, 2&#960] which shall be used for the computation of phase wind-up correction</td></tr>
     3856<tr><td>YawRate</td><td>Satellite Yaw Rate in radian per second which is the rate of Yaw Angle</td></tr>
     3857<tr><td>PhaseBias</td><td>Satellite Phase Biases in meters with two characters for frequency and tracking mode per bias as defined in RINEX 3, preceded by total number of biases and followed by Signal Integer Indicator, Signals Wilde-Lane Integer Indicator as well as Signal Discontinuity Counter</td></tr>
    40323858</table>
    4033 <ul class="simple">
    4034 <li>Non-satellite specific parameters</li>
    4035 </ul>
    4036 <p>The following syntax will be used:</p>
    4037 <div class="highlight-console"><div class="highlight"><pre><span class="go">&lt;key&gt; &lt;value1 value2 ...&gt;</span>
    4038 </pre></div>
    4039 </div>
    4040 <p>The non-satellite specific keys and values currently specified in BNC are listed in <a class="reference internal" href="#tab-non-sat-spec-parameter-keys"><span class="std std-numref">Table 11</span></a>.</p>
    4041 <table border="1" class="docutils" id="id56">
    4042 <span id="tab-non-sat-spec-parameter-keys"></span><caption><span class="caption-number">Table 11 </span><span class="caption-text">Keys for non-satellite specific parameters used in BNC.</span><a class="headerlink" href="#id56" title="Permalink to this table">¶</a></caption>
    4043 <colgroup>
    4044 <col width="11%" />
    4045 <col width="89%" />
    4046 </colgroup>
    4047 <thead valign="bottom">
    4048 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    4049 <th class="head"><strong>Values</strong></th>
    4050 </tr>
    4051 </thead>
    4052 <tbody valign="top">
    4053 <tr class="row-even"><td>IND</td>
    4054 <td>Phase bias information followed by Dispersive Bias Consistency Indicator and MW Consistency Indicator</td>
    4055 </tr>
    4056 <tr class="row-odd"><td>VTEC</td>
    4057 <td>Vertical TEC information followed by Update Interval and Number of Ionospheric Layers</td>
    4058 </tr>
    4059 </tbody>
     3859<p>
     3860<ul>
     3861<li> Non-satellite specific parameters
     3862</ul>
     3863</p>
     3864<p>
     3865The following syntax will be used:
     3866</p>
     3867<pre>
     3868&lt;key&gt; &lt;value1 value2 ...&gt;
     3869&nbsp;
     3870</pre>
     3871<p>
     3872</ul>
     3873The following non-satellite specific keys and values are currently specified in BNC:<br><br>
     3874<table>
     3875<tr><td><i>Key&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</i></td><td><i>Values</i></td></tr>
     3876<tr><td>IND</td><td>Stands for phase bias information and is followed by Dispersive Bias Consistency Indicator and MW Consistency Indicator</td></tr>
     3877<tr><td>VTEC</td><td>Stands for Vertical TEC information and is followed by Update Interval and Number of Ionospheric Layers</td></tr>
    40603878</table>
    4061 <p>If key VTEC is specified, a data set for each layer contains within its first line the Layers Number, followed by Maximum Degree, Maximum Order and Layer Height. After that, Cosine and Sinus Spherical Harmonic Coefficients will follow, one block each.</p>
    4062 <p>Because each keyword is associated to a certain number of values, an &#8216;old&#8217; BNC could be operated with an incoming &#8216;new&#8217; RTNET stream containing so far unknown keys - they would just be skipped in BNC.</p>
    4063 <p>Example for &#8216;RTNET&#8217; stream content and format:</p>
    4064 <div class="highlight-console"><div class="highlight"><pre><span class="go">* 2015 6 11 15 10 40.000000</span>
    4065 <span class="go">VTEC 0 1 0 6 6 450000.0 20.4660 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.3590 9.6580 0.0000 0.0000 0.0000 0.0000 0.0000 -6.3610 -0.1210 1.1050 0.0000 0.0000 0.0000 0.0000 -2.7140 -1.8200 -0.9920 -0.6430 0.0000 0.0000 0.0000 1.9140 -0.5180 0.2530 0.0870 -0.0110 0.0000 0.0000 2.2950 1.0510 -0.9540 0.6220 -0.0720 -0.0810 0.0000 -0.9760 0.7570 0.2320 -0.2520 0.1970 -0.0680 -0.0280 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2720 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 1.1100 -1.0170 0.0000 0.0000 0.0000 0.0000 0.0000 -1.1500 0.5440 0.9890 0.0000 0.0000 0.0000 0.0000 -0.3770 -0.1990 0.2670 -0.0470 0.0000 0.0000 0.0000 0.6550 -0.0130 -0.2310 -0.4810 -0.3510 0.0000 0.0000 0.2360 -0.0710 0.0280 0.1900 -0.0810 0.0710</span>
    4066 <span class="go">IND 0 1</span>
    4067 <span class="go">G01 APC 3   -14442611.532   -13311059.070   -18020998.395 Clk 1   -1426.920500 Vel 3  2274.647600   -28.980300 -1787.861900 CoM 3   -14442612.572   -13311059.518   -18020999.539 CodeBias 6 1W -3.760000 1C -3.320000 2W -6.200000 2X -5.780000 1H -3.350000 5I -5.430000 YawAngle 1 -0.315600 YawRate 1 0.0 PhaseBias 3 1C  3.9473 1 2 4 2W  6.3143 1 2 4 5I 6.7895 1 2 4</span>
    4068 <span class="go">G02 APC 3    -8859103.160    14801278.856    20456920.800 Clk 1  171219.083500 Vel 3 -2532.296700  -161.275800 -1042.884100 CoM 3    -8859103.418    14801279.287    20456921.395 CodeBias 6 1W  3.930000 1C  3.610000 2W  6.480000 2X  0.000000 1H  3.580000 5I  0.000000 YawAngle 1 -0.693500 YawRate 1 0.0 PhaseBias 2 1C -4.0902 1 2 4 2W -6.7045 1 2 4</span>
    4069 <span class="go">G03 APC 3   -13788295.679   -22525098.353     2644811.508 Clk 1  104212.074300 Vel 3   102.263400  -429.953400 -3150.231900 CoM 3   -13788296.829   -22525099.534     2644811.518 CodeBias 6 1W -2.650000 1C -2.160000 2W -4.360000 2X -4.480000 1H -2.070000 5I -5.340000 YawAngle 1 -0.428800 YawRate 1 0.0 PhaseBias 3 1C  2.9024 1 2 2 2W  4.6124 1 2 2 5I 5.3694 1 2 2</span>
    4070 <span class="go">...</span>
    4071 <span class="go">R01 APC 3    -6783489.153   -23668850.753     6699094.457 Clk 1 - 45875.658100 Vel 3  -267.103000  -885.983700 -3403.253200 CoM 3    -6783489.307   -23668853.173     6699095.274 CodeBias 4 1P -2.496400 1C -2.490700 2P -4.126600 2C -3.156200</span>
    4072 <span class="go">R02 APC 3   -11292959.022   -10047039.425    20577343.288 Clk 1   41215.750900 Vel 3  -476.369400 -2768.936600 -1620.000600 CoM 3   -11292959.672   -10047040.710    20577345.344 CodeBias 4 1P  0.211200 1C  0.391300 2P  0.349100 2C  0.406300</span>
    4073 <span class="go">R03 APC 3    -9226469.614     9363128.850    21908853.313 Clk 1   13090.322800 Vel 3  -369.088600 -2964.934500  1111.041000 CoM 3    -9226470.226     9363129.442    21908855.791 CodeBias 4 1P  2.283800 1C  2.483800 2P  3.775300 2C  3.785500</span>
    4074 <span class="go">...</span>
    4075 <span class="go">E11 APC 3     2965877.898    17754418.441    23503540.946 Clk 1   33955.329000 Vel 3 -1923.398100  1361.709200  -784.555800 CoM 3     2965878.082    17754418.669    23503541.507 CodeBias 3 1B  1.382100 5Q  2.478400 7Q  2.503300</span>
    4076 <span class="go">E12 APC 3   -14807433.144    21753389.581    13577231.476 Clk 1 -389652.211900 Vel 3 -1082.464300   825.868400 -2503.982200 CoM 3   -14807433.366    21753389.966    13577231.926 CodeBias 3 1B  0.386600 5Q  0.693300 7Q  0.534700</span>
    4077 <span class="go">E19 APC 3   -15922225.351     8097517.292    23611910.403 Clk 1   -2551.650800 Vel 3  -183.377800 -2359.143700   684.105100 CoM 3   -15922225.569     8097517.329    23611910.995 CodeBias 3 1B -1.777000 5Q -3.186600 7Q -3.069100</span>
    4078 <span class="go">...</span>
    4079 <span class="go">EOE</span>
    4080 </pre></div>
    4081 </div>
    4082 <p>Note that the end of an epoch in the incoming stream is indicated by an ASCII string &#8216;EOE&#8217; (for End Of Epoch).</p>
    4083 <p>When using clocks from Broadcast Ephemeris (with or without applied corrections) or clocks from SP3 files, it may be important to understand that they are not corrected for the conventional periodic relativistic effect. Chapter 10 of the IERS Conventions 2003 mentions that the conventional periodic relativistic correction to the satellite clock (to be added to the broadcast clock) is computed as</p>
    4084 <div class="math">
    4085 \[dt =  -2 (R * V) / c^2\]</div>
    4086 <p>where <span class="math">\(R * V\)</span> is the scalar product of the satellite position and velocity and <span class="math">\(c\)</span> is the speed of light. This can also be found in the GPS Interface Specification, IS-GPS-200, Revision D, 7 March 2006.</p>
    4087 <div class="section" id="add-delete-row-optional">
    4088 <h4>Add, Delete Row - optional<a class="headerlink" href="#add-delete-row-optional" title="Permalink to this headline">¶</a></h4>
    4089 <p>Hit &#8216;Add Row&#8217; button to add a row to the stream &#8216;Upload Table&#8217; or hit the &#8216;Delete&#8217; button to delete the highlighted row(s). Having an empty &#8216;Upload Table&#8217; is default and means that you do not want BNC to upload orbit and clock correction streams to any Ntrip Broadcaster.</p>
    4090 </div>
    4091 <div class="section" id="host-port-mountpoint-password-optional">
    4092 <h4>Host, Port, Mountpoint, Password - optional<a class="headerlink" href="#host-port-mountpoint-password-optional" title="Permalink to this headline">¶</a></h4>
    4093 <p>Specify the domain name or IP number of an Ntrip Broadcaster for uploading the stream. Furthermore, specify the caster&#8217;s listening IP port, an upload mountpoint and an upload password. Note that Ntrip Broadcasters are often configured to provide access through more than one port, usually ports 80 and 2101. If you experience communication problems on port 80, you should try to use the alternative port(s).</p>
    4094 <p>BNC uploads a stream to the Ntrip Broadcaster by referring to a dedicated mountpoint that has been set by its operator. Specify the mountpoint based on the details you received for your stream from the operator. It is often a 4-character ID (capital letters) plus an integer number.</p>
    4095 <p>The stream upload may be protected through an upload &#8216;Password&#8217;. Enter the password you received from the Ntrip Broadcaster operator along with the mountpoint(s).</p>
    4096 <p>If &#8216;Host&#8217;, &#8216;Port&#8217;, &#8216;Mountpoint&#8217; and &#8216;Password&#8217; are set, the stream will be encoded in RTCM&#8217;s &#8216;State Space Representation&#8217; (SSR) messages and uploaded to the specified broadcaster following the Ntrip Version 1 transport protocol.</p>
    4097 </div>
    4098 <div class="section" id="system-mandatory-if-host-is-set">
    4099 <span id="index-40"></span><h4>System - mandatory if &#8216;Host&#8217; is set<a class="headerlink" href="#system-mandatory-if-host-is-set" title="Permalink to this headline">¶</a></h4>
    4100 <p>BNC allows configuring several Broadcast Correction streams for upload so that they refer to different reference systems and different Ntrip Broadcasters. You may use this functionality for parallel support of a backup Ntrip Broadcaster or for simultaneous support of various regional reference systems. Available options for transforming orbit and clock corrections to specific target reference systems are:</p>
    4101 <ul class="simple">
     3879<br>
     3880If key VTEC is specified, a data set for each layer contains within its first line the Layers Number, followed by Maximum Degree, Maximum Order and Layer Height. After that, Cosine and Sinus Spherical Harmonic Coefficients will follow, one block each.
     3881</p>
     3882<p>
     3883Because each keyword is associated to a certain number of values, an 'old' BNC could be operated with an incoming 'new' RTNET stream containing so far unknown keys - they would just be skipped in BNC.
     3884</p>
     3885<p>
     3886Example for 'RTNET' stream content and format:
     3887</p>
     3888<p>
     3889<pre>
     3890* 2015 6 11 15 10 40.000000
     3891VTEC 0 1 0 6 6 450000.0 20.4660 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 5.3590 9.6580 0.0000 0.0000 0.0000 0.0000 0.0000 -6.3610 -0.1210 1.1050 0.0000 0.0000 0.0000 0.0000 -2.7140 -1.8200 -0.9920 -0.6430 0.0000 0.0000 0.0000 1.9140 -0.5180 0.2530 0.0870 -0.0110 0.0000 0.0000 2.2950 1.0510 -0.9540 0.6220 -0.0720 -0.0810 0.0000 -0.9760 0.7570 0.2320 -0.2520 0.1970 -0.0680 -0.0280 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.2720 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 1.1100 -1.0170 0.0000 0.0000 0.0000 0.0000 0.0000 -1.1500 0.5440 0.9890 0.0000 0.0000 0.0000 0.0000 -0.3770 -0.1990 0.2670 -0.0470 0.0000 0.0000 0.0000 0.6550 -0.0130 -0.2310 -0.4810 -0.3510 0.0000 0.0000 0.2360 -0.0710 0.0280 0.1900 -0.0810 0.0710
     3892IND 0 1
     3893G01 APC 3   -14442611.532   -13311059.070   -18020998.395 Clk 1   -1426.920500 Vel 3  2274.647600   -28.980300 -1787.861900 CoM 3   -14442612.572   -13311059.518   -18020999.539 CodeBias 6 1W -3.760000 1C -3.320000 2W -6.200000 2X -5.780000 1H -3.350000 5I -5.430000 YawAngle 1 -0.315600 YawRate 1 0.0 PhaseBias 3 1C  3.9473 1 2 4 2W  6.3143 1 2 4 5I 6.7895 1 2 4
     3894G02 APC 3    -8859103.160    14801278.856    20456920.800 Clk 1  171219.083500 Vel 3 -2532.296700  -161.275800 -1042.884100 CoM 3    -8859103.418    14801279.287    20456921.395 CodeBias 6 1W  3.930000 1C  3.610000 2W  6.480000 2X  0.000000 1H  3.580000 5I  0.000000 YawAngle 1 -0.693500 YawRate 1 0.0 PhaseBias 2 1C -4.0902 1 2 4 2W -6.7045 1 2 4
     3895G03 APC 3   -13788295.679   -22525098.353     2644811.508 Clk 1  104212.074300 Vel 3   102.263400  -429.953400 -3150.231900 CoM 3   -13788296.829   -22525099.534     2644811.518 CodeBias 6 1W -2.650000 1C -2.160000 2W -4.360000 2X -4.480000 1H -2.070000 5I -5.340000 YawAngle 1 -0.428800 YawRate 1 0.0 PhaseBias 3 1C  2.9024 1 2 2 2W  4.6124 1 2 2 5I 5.3694 1 2 2
     3896..
     3897R01 APC 3    -6783489.153   -23668850.753     6699094.457 Clk 1 - 45875.658100 Vel 3  -267.103000  -885.983700 -3403.253200 CoM 3    -6783489.307   -23668853.173     6699095.274 CodeBias 4 1P -2.496400 1C -2.490700 2P -4.126600 2C -3.156200
     3898R02 APC 3   -11292959.022   -10047039.425    20577343.288 Clk 1   41215.750900 Vel 3  -476.369400 -2768.936600 -1620.000600 CoM 3   -11292959.672   -10047040.710    20577345.344 CodeBias 4 1P  0.211200 1C  0.391300 2P  0.349100 2C  0.406300
     3899R03 APC 3    -9226469.614     9363128.850    21908853.313 Clk 1   13090.322800 Vel 3  -369.088600 -2964.934500  1111.041000 CoM 3    -9226470.226     9363129.442    21908855.791 CodeBias 4 1P  2.283800 1C  2.483800 2P  3.775300 2C  3.785500
     3900..
     3901E11 APC 3     2965877.898    17754418.441    23503540.946 Clk 1   33955.329000 Vel 3 -1923.398100  1361.709200  -784.555800 CoM 3     2965878.082    17754418.669    23503541.507 CodeBias 3 1B  1.382100 5Q  2.478400 7Q  2.503300
     3902E12 APC 3   -14807433.144    21753389.581    13577231.476 Clk 1 -389652.211900 Vel 3 -1082.464300   825.868400 -2503.982200 CoM 3   -14807433.366    21753389.966    13577231.926 CodeBias 3 1B  0.386600 5Q  0.693300 7Q  0.534700
     3903E19 APC 3   -15922225.351     8097517.292    23611910.403 Clk 1   -2551.650800 Vel 3  -183.377800 -2359.143700   684.105100 CoM 3   -15922225.569     8097517.329    23611910.995 CodeBias 3 1B -1.777000 5Q -3.186600 7Q -3.069100
     3904..
     3905EOE
     3906</pre>
     3907</p>
     3908<p>
     3909Note that the end of an epoch in the incoming stream is indicated by an ASCII string 'EOE' (for End Of Epoch).
     3910</p>
     3911<p>
     3912When using clocks from Broadcast Ephemeris (with or without applied corrections) or clocks from SP3 files, it may be important to understand that they are not corrected for the conventional periodic relativistic effect. Chapter 10 of the IERS Conventions 2003 mentions that the conventional periodic relativistic correction to the satellite clock (to be added to the broadcast clock) is computed as
     3913<pre>
     3914 &nbsp; &nbsp; dt =  -2 (R * V) / c<sup>2</sup>
     3915</pre>
     3916where R * V is the scalar product of the satellite position and velocity and c is the speed of light. This can also be found in the GPS Interface Specification, IS-GPS-200, Revision D, 7 March 2006.
     3917</p>
     3918
     3919<p><h4>2.15.1 <a name="upadd">Add, Delete Row - optional</h4></p>
     3920<p>Hit 'Add Row' button to add a row to the stream 'Upload Table' or hit the 'Delete' button to delete the highlighted row(s).
     3921</p>
     3922<p>
     3923Having an empty 'Upload Table' is default and means that you do not want BNC to upload orbit and clock correction streams to any Ntrip Broadcaster.
     3924</p>
     3925
     3926<p><h4>2.15.2 <a name="uphost">Host, Port, Mountpoint, Password - optional</h4></p>
     3927
     3928<p>Specify the domain name or IP number of an Ntrip Broadcaster for uploading the stream. Furthermore, specify the caster's listening IP port, an upload mountpoint and an upload password. Note that Ntrip Broadcasters are often configured to provide access through more than one port, usually ports 80 and 2101. If you experience communication problems on port 80, you should try to use the alternative port(s).
     3929</p>
     3930<p>
     3931BNC uploads a stream to the Ntrip Broadcaster by referring to a dedicated mountpoint that has been set by its operator. Specify the mountpoint based on the details you received for your stream from the operator. It is often a 4-character ID (capital letters) plus an integer number.</p>
     3932<p>The stream upload may be protected through an upload 'Password'. Enter the password you received from the Ntrip Broadcaster operator along with the mountpoint(s).</p>
     3933<p>
     3934If 'Host', 'Port', 'Mountpoint' and 'Password' are set, the stream will be encoded in RTCM's 'State Space Representation' (SSR) messages and uploaded to the specified broadcaster following the Ntrip Version 1 transport protocol.
     3935</p>
     3936
     3937<p><h4>2.15.3 <a name="upsystem">System - mandatory if 'Host' is set</h4></p>
     3938<p>
     3939BNC allows configuring several Broadcast Correction streams for upload so that they refer to different reference systems and different Ntrip Broadcasters. You may use this functionality for parallel support of a backup Ntrip Broadcaster or for simultaneous support of various regional reference systems. Available options for transforming orbit and clock corrections to specific target reference systems are
     3940<p>
     3941<ul>
    41023942<li>IGS08 which stands for the GNSS-based IGS realization of the International Terrestrial Reference Frame 2008 (ITRF2008), and</li>
    41033943<li>ETRF2000 which stands for the European Terrestrial Reference Frame 2000 adopted by EUREF, and</li>
    … …  
    41073947<li>SIRGAS95 which stands for the Geodetic Datum adopted e.g. for Venezuela, and</li>
    41083948<li>DREF91 which stands for the Geodetic Datum adopted for Germany, and</li>
    4109 <li>&#8216;Custom&#8217; which allows a transformation of Broadcast Corrections from the IGS08 system to any other system through specifying up to 14 Helmert Transformation Parameters.</li>
    4110 </ul>
    4111 <p>Because a mathematically strict transformation to a regional reference system is not possible on the BNC server side when a scale factor is involved, the program follows an approximate solution. While orbits are transformed in full accordance with given equations, a transformed clock is derived through applying correction term</p>
    4112 <div class="math">
    4113 \[dC = (s - 1) / s * \rho / c\]</div>
    4114 <p>where <span class="math">\(s\)</span> is the transformation scale, <span class="math">\(c\)</span> is the speed of light, and <span class="math">\(ρ\)</span> is the topocentric distance between an (approximate) center of the transformation&#8217;s validity area and the satellite.</p>
    4115 <p>From a theoretical point of view, this kind of approximation leads to inconsistencies between orbits and clocks and is therefore not allowed <a class="reference internal" href="bnchelp.html#huisman2012a" id="id13">[11]</a>. However, it has been proved that resulting errors in Precise Point Positioning are on millimeter level for horizontal components and below one centimeter for height components. The Australian GDA94 transformation with its comparatively large scale parameter is an exception in this as discrepancies may reach up there to two centimeters.</p>
    4116 <p>IGS08: As the orbits and clocks coming from real-time GNSS engine are expected to be in the IGS08 system, no transformation is carried out if this option is selected.</p>
    4117 <p>ETRF2000: The formulas for the transformation &#8216;ITRF2008-&gt;ETRF2000&#8217; are taken from &#8216;Claude Boucher and Zuheir Altamimi 2008: Specifications for reference frame fixing in the analysis of EUREF GPS campaign&#8217;, see <a class="reference external" href="http://etrs89.ensg.ign.fr/memo-V8.pdf">http://etrs89.ensg.ign.fr/memo-V8.pdf</a>. The following 14 Helmert Transformation Parameters were introduced:</p>
    4118 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To:  0.0521 m</span>
    4119 <span class="go">Translation in Y at epoch To:  0.0493 m</span>
    4120 <span class="go">Translation in Z at epoch To: -0.0585 m</span>
    4121 <span class="go">Translation rate in X:  0.0001 m/y</span>
    4122 <span class="go">Translation rate in Y:  0.0001 m/y</span>
    4123 <span class="go">Translation rate in Z: -0.0018 m/y</span>
    4124 <span class="go">Rotation in X at epoch To:  0.891 mas</span>
    4125 <span class="go">Rotation in Y at epoch To:  5.390 mas</span>
    4126 <span class="go">Rotation in Z at epoch To: -8.712 mas</span>
    4127 <span class="go">Rotation rate in X:  0.081 mas/y</span>
    4128 <span class="go">Rotation rate in Y:  0.490 mas/y</span>
    4129 <span class="go">Rotation rate in Z: -0.792 mas/y</span>
    4130 <span class="go">Scale at epoch To : 0.00000000134</span>
    4131 <span class="go">Scale rate: 0.00000000008 /y</span>
    4132 <span class="go">To: 2000.0</span>
    4133 </pre></div>
    4134 </div>
    4135 <p>NAD83: Formulas for the transformation &#8216;ITRF2008-&gt;NAD83&#8217; are taken from <a class="reference internal" href="bnchelp.html#pearson2013a" id="id14">[12]</a>:</p>
    4136 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To:  0.99343 m</span>
    4137 <span class="go">Translation in Y at epoch To: -1.90331 m</span>
    4138 <span class="go">Translation in Z at epoch To: -0.52655 m</span>
    4139 <span class="go">Translation rate in X:  0.00079 m/y</span>
    4140 <span class="go">Translation rate in Y: -0.00060 m/y</span>
    4141 <span class="go">Translation rate in Z: -0.00134 m/y</span>
    4142 <span class="go">Rotation in X at epoch To: -25.91467 mas</span>
    4143 <span class="go">Rotation in Y at epoch To:  -9.42645 mas</span>
    4144 <span class="go">Rotation in Z at epoch To: -11.59935 mas</span>
    4145 <span class="go">Rotation rate in X: -0.06667 mas/y</span>
    4146 <span class="go">Rotation rate in Y:  0.75744 mas/y</span>
    4147 <span class="go">Rotation rate in Z:  0.05133 mas/y</span>
    4148 <span class="go">Scale at epoch To : 0.00000000171504</span>
    4149 <span class="go">Scale rate: -0.00000000010201 /y</span>
    4150 <span class="go">To: 1997.0</span>
    4151 </pre></div>
    4152 </div>
    4153 <p>GDA94: The formulas for the transformation &#8216;ITRF2008-&gt;GDA94&#8217; are taken from <a class="reference internal" href="bnchelp.html#dawson2010a" id="id15">[13]</a>:</p>
    4154 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To: -0.08468 m</span>
    4155 <span class="go">Translation in Y at epoch To: -0.01942 m</span>
    4156 <span class="go">Translation in Z at epoch To:  0.03201 m</span>
    4157 <span class="go">Translation rate in X:  0.00142 m/y</span>
    4158 <span class="go">Translation rate in Y:  0.00134 m/y</span>
    4159 <span class="go">Translation rate in Z:  0.00090 m/y</span>
    4160 <span class="go">Rotation in X at epoch To:  0.4254 mas</span>
    4161 <span class="go">Rotation in Y at epoch To: -2.2578 mas</span>
    4162 <span class="go">Rotation in Z at epoch To: -2.4015 mas</span>
    4163 <span class="go">Rotation rate in X: -1.5461 mas/y</span>
    4164 <span class="go">Rotation rate in Y: -1.1820 mas/y</span>
    4165 <span class="go">Rotation rate in Z: -1.1551 mas/y</span>
    4166 <span class="go">Scale at epoch To : 0.000000009710</span>
    4167 <span class="go">Scale rate: 0.000000000109 /y</span>
    4168 <span class="go">To: 1994.0</span>
    4169 </pre></div>
    4170 </div>
    4171 <p>SIRGAS2000: The formulas for the transformation &#8216;ITRF2008-&gt;SIRGAS2000&#8217; were provided by <a class="reference internal" href="bnchelp.html#ibge-dgc2016a" id="id16">[14]</a>:</p>
    4172 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To:  0.0020 m</span>
    4173 <span class="go">Translation in Y at epoch To:  0.0041 m</span>
    4174 <span class="go">Translation in Z at epoch To:  0.0039 m</span>
    4175 <span class="go">Translation rate in X:  0.0000 m/y</span>
    4176 <span class="go">Translation rate in Y:  0.0000 m/y</span>
    4177 <span class="go">Translation rate in Z:  0.0000 m/y</span>
    4178 <span class="go">Rotation in X at epoch To:  0.170 mas</span>
    4179 <span class="go">Rotation in Y at epoch To: -0.030 mas</span>
    4180 <span class="go">Rotation in Z at epoch To:  0.070 mas</span>
    4181 <span class="go">Rotation rate in X:  0.000 mas/y</span>
    4182 <span class="go">Rotation rate in Y:  0.000 mas/y</span>
    4183 <span class="go">Rotation rate in Z:  0.000 mas/y</span>
    4184 <span class="go">Scale at epoch To : -0.000000001000</span>
    4185 <span class="go">Scale rate: 0.000000000000 /y</span>
    4186 <span class="go">To: 0000.0</span>
    4187 </pre></div>
    4188 </div>
    4189 <p>SIRGAS95: The formulas for the transformation &#8216;ITRF2005-&gt;SIRGAS95&#8217; were provided by <a class="reference internal" href="bnchelp.html#acuha2016a" id="id17">[15]</a> , parameters based on values from <a class="reference internal" href="bnchelp.html#sirgas2009a" id="id18">[16]</a>, Table 4.1:</p>
    4190 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To:  0.0077 m</span>
    4191 <span class="go">Translation in Y at epoch To:  0.0058 m</span>
    4192 <span class="go">Translation in Z at epoch To: -0.0138 m</span>
    4193 <span class="go">Translation rate in X:  0.0000 m/y</span>
    4194 <span class="go">Translation rate in Y:  0.0000 m/y</span>
    4195 <span class="go">Translation rate in Z:  0.0000 m/y</span>
    4196 <span class="go">Rotation in X at epoch To:  0.000 mas</span>
    4197 <span class="go">Rotation in Y at epoch To:  0.000 mas</span>
    4198 <span class="go">Rotation in Z at epoch To: -0.003 mas</span>
    4199 <span class="go">Rotation rate in X:  0.000 mas/y</span>
    4200 <span class="go">Rotation rate in Y:  0.000 mas/y</span>
    4201 <span class="go">Rotation rate in Z:  0.000 mas/y</span>
    4202 <span class="go">Scale at epoch To : 0.00000000157</span>
    4203 <span class="go">Scale rate: -0.000000000000 /y</span>
    4204 <span class="go">To: 1995.4</span>
    4205 </pre></div>
    4206 </div>
    4207 <p>DREF91 14 Helmert transformation parameters have been introduced <a class="reference internal" href="bnchelp.html#franke2008a" id="id19">[17]</a>:</p>
    4208 <div class="highlight-console"><div class="highlight"><pre><span class="go">Translation in X at epoch To: -0.0118 m</span>
    4209 <span class="go">Translation in Y at epoch To:  0.1432 m</span>
    4210 <span class="go">Translation in Z at epoch To: -0.1117 m</span>
    4211 <span class="go">Translation rate in X:  0.0001 m/y</span>
    4212 <span class="go">Translation rate in Y:  0.0001 m/y</span>
    4213 <span class="go">Translation rate in Z: -0.0018 m/y</span>
    4214 <span class="go">Rotation in X at epoch To:   3.291 mas</span>
    4215 <span class="go">Rotation in Y at epoch To:   6.190 mas</span>
    4216 <span class="go">Rotation in Z at epoch To: -11.012 mas</span>
    4217 <span class="go">Rotation rate in X:  0.081 mas/y</span>
    4218 <span class="go">Rotation rate in Y:  0.490 mas/y</span>
    4219 <span class="go">Rotation rate in Z: -0.792 mas/y</span>
    4220 <span class="go">Scale at epoch To : 0.00000001224</span>
    4221 <span class="go">Scale rate: 0.00000000008 /y</span>
    4222 <span class="go">To: 2000.0</span>
    4223 </pre></div>
    4224 </div>
    4225 <p>Custom: Feel free to specify your own 14 Helmert Transformation parameters for transformations from IGS08/ITRF2008 into your own target system (see <a class="reference internal" href="#fig-30"><span class="std std-numref">Fig. 32</span></a>).</p>
    4226 <div class="figure" id="id57">
    4227 <span id="fig-30"></span><a class="reference internal image-reference" href="_images/fig_30.png"><img alt="_images/fig_30.png" src="_images/fig_30.png" style="width: 355.2px; height: 184.79999999999998px;" /></a>
    4228 <p class="caption"><span class="caption-number">Fig. 32 </span><span class="caption-text">Setting BNC&#8217;s Custom Transformation Parameters window, example for &#8216;ITRF2008-&gt;GDA94&#8217;</span></p>
    4229 </div>
    4230 </div>
    4231 <div class="section" id="center-of-mass-optional">
    4232 <h4>Center of Mass - optional<a class="headerlink" href="#center-of-mass-optional" title="Permalink to this headline">¶</a></h4>
    4233 <p>BNC allows to either refer Broadcast Corrections to the satellite&#8217;s Center of Mass (CoM) or to the satellite&#8217;s Antenna Phase Center (APC). By default, corrections refer to APC. Tick &#8216;Center of Mass&#8217; to refer uploaded corrections to CoM.</p>
    4234 </div>
    4235 <div class="section" id="sp3-file-optional">
    4236 <h4>SP3 File - optional<a class="headerlink" href="#sp3-file-optional" title="Permalink to this headline">¶</a></h4>
    4237 <p>Specify a path for saving the generated orbit corrections as SP3 orbit files. If the specified directory does not exist, BNC will not create SP3 orbit files. The following is a path example for a Linux system:</p>
    4238 <div class="highlight-console"><div class="highlight"><pre><span class="go">/home/user/BNC${GPSWD}.sp3</span>
    4239 </pre></div>
    4240 </div>
    4241 <p>Note that &#8216;${GPSWD}&#8217; produces the GPS Week and Day number in the filename. Default is an empty option field, meaning that you do not want BNC to save the uploaded stream content in daily SP3 files.</p>
    4242 <p>As a SP3 file content should be referred to the satellites&#8217; Center of Mass (CoM) while Broadcast Corrections are referred to the satellites&#8217; APC, an offset has to be applied which is available from an IGS ANTEX file (see option &#8216;ANTEX File&#8217; below). Hence, you should specify the &#8216;ANTEX File&#8217; path there if you want to save the stream content in SP3 format. If you do not specify an &#8216;ANTEX File&#8217; path, the SP3 file content will be referred to the satellites APCs.</p>
    4243 <p>The filenames for the daily SP3 files follow the convention for SP3 filenames. The first three characters of each filename are set to &#8216;BNC&#8217;. Note that clocks in the SP3 orbit files are not corrected for the conventional periodic relativistic effect.</p>
    4244 <p>In case the &#8216;Combine Corrections&#8217; table contains only one Broadcast Correction stream, BNC will merge that stream with Broadcast Ephemeris to save results in files specified here through SP3 and/or Clock RINEX file path. In such a case you have to define only the SP3 and Clock RINEX file path and no further option in the &#8216;Upload Corrections&#8217; table.</p>
    4245 <p>Note that BNC outputs a complete list of SP3 &#8216;Epoch Header Records&#8217;, even if no &#8216;Position and Clock Records&#8217; are available for certain epochs because of stream outages. Note further that the &#8216;Number of Epochs&#8217; in the first SP3 header record may not be correct because that number is not available when the file is created. Depending on your processing software (e.g. Bernese GNSS Software, BSW) it could therefore be necessary to correct an incorrect &#8216;Number of Epochs&#8217; in the file before you use it in post processing.</p>
    4246 </div>
    4247 <div class="section" id="rnx-file-optional">
    4248 <h4>RNX File - optional<a class="headerlink" href="#rnx-file-optional" title="Permalink to this headline">¶</a></h4>
    4249 <p>The clock corrections generated by BNC for upload can be logged in Clock RINEX format. The file naming follows the RINEX convention.</p>
    4250 <p>Specify a path for saving the generated clock corrections as Clock RINEX files. If the specified directory does not exist, BNC will not create Clock RINEX files. The following is a path example for a Linux system:</p>
    4251 <div class="highlight-console"><div class="highlight"><pre><span class="go">/home/user/BNC${GPSWD}.clk</span>
    4252 </pre></div>
    4253 </div>
    4254 <p>Note that &#8216;${GPSWD}&#8217; produces the GPS Week and Day number in the filename. Note further that clocks in the Clock RINEX files are not corrected for the conventional periodic relativistic effect.</p>
    4255 </div>
    4256 <div class="section" id="pid-sid-iod-optional">
    4257 <h4>PID, SID, IOD - optional<a class="headerlink" href="#pid-sid-iod-optional" title="Permalink to this headline">¶</a></h4>
    4258 <p>When applying Broadcast Ephemeris corrections in a PPP algorithm or in a combination of several correction streams, it is important for the client software to receive information on the continuity of discontinuity of the stream contents. Here you can specify three ID&#8217;s to describe the contents of your Broadcast Ephemeris correction stream when it is uploaded.</p>
    4259 <ul class="simple">
    4260 <li>A &#8216;SSR Provider ID&#8217; is issued by RTCM SC-104 on request to identify a SSR service (see e.g. url{<a class="reference external" href="http://software.rtcm-ntrip.org/wiki/SSRProvider">http://software.rtcm-ntrip.org/wiki/SSRProvider</a>}). This ID is globally unique. Values vary in the range of 0-65535. Values in the range of 0-255 are reserved for experimental services.</li>
    4261 <li>A provider may generate several Broadcast Ephemeris correction streams with different contents. The &#8216;SSR Solution ID&#8217; indicates different SSR services of one SSR provider. Values vary in the range of 0-15.</li>
    4262 <li>A change of the &#8216;IOD SSR&#8217; is used to indicate a change in the SSR generating configuration which may be relevant for the rover. Values vary in the range of 0-15.</li>
    4263 </ul>
    4264 </div>
    4265 <div class="section" id="interval-mandatory-if-upload-table-entries-specified">
    4266 <h4>Interval - mandatory if &#8216;Upload Table&#8217; entries specified<a class="headerlink" href="#interval-mandatory-if-upload-table-entries-specified" title="Permalink to this headline">¶</a></h4>
    4267 <p>Select the length of Clock RINEX files and SP3 Orbit files. The default value is 1 day.</p>
    4268 </div>
    4269 <div class="section" id="sampling">
    4270 <h4>Sampling<a class="headerlink" href="#sampling" title="Permalink to this headline">¶</a></h4>
    4271 <p>BNC requires an orbit corrections sampling interval for the stream to be uploaded and sampling intervals for SP3 and Clock RINEX files. The outgoing stream&#8217;s clock correction sampling interval follows that of incoming corrections and is therefore nothing to be specified here.</p>
    4272 <div class="section" id="orbits-orb-mandatory-if-upload-table-entries-specified">
    4273 <h5>Orbits (Orb) - mandatory if &#8216;Upload Table&#8217; entries specified<a class="headerlink" href="#orbits-orb-mandatory-if-upload-table-entries-specified" title="Permalink to this headline">¶</a></h5>
    4274 <p>Select the stream&#8217;s orbit correction sampling interval in seconds. A value of 60 sec may be appropriate. A value of zero &#8216;0&#8217; tells BNC to upload all orbit correction samples coming in from the real-time GNSS engine along with the clock correction samples to produce combined orbit and clock corrections to Broadcast Ephemeris (1060 for GPS, 1066 for GLONASS).</p>
    4275 <p>Configuration examples:</p>
    4276 <p>Let us suppose a real-time network engine supporting BNC every 5 sec with GPS Broadcast Corrections for orbits, clocks and code biases in &#8216;RTNET&#8217; stream format:</p>
    4277 <p>With &#8216;Sampling Orb&#8217; set to &#8216;0&#8217; BNC will produce</p>
    4278 <ul class="simple">
     3949<li>'Custom' which allows a transformation of Broadcast Corrections from the IGS08 system to any other system through specifying up to 14 Helmert Transformation Parameters.</li>
     3950</ul>
     3951</p>
     3952
     3953<p>
     3954Because a mathematically strict transformation to a regional reference system is not possible on the BNC server side when a scale factor is involved, the program follows an approximate solution. While <u>orbits</u> are transformed in full accordance with given equations, a transformed <u>clock</u> is derived through applying correction term
     3955</p>
     3956<pre>
     3957   dC = (s - 1) / s * &rho; / c
     3958</pre>
     3959<p>
     3960where s is the transformation scale, c is the speed of light, and &rho; are the topocentric distance between an (approximate) center of the transformation's validity area and the satellite.
     3961</p>
     3962<p>
     3963From a theoretical point of view, this kind of approximation leads to inconsistencies between orbits and clocks and is therefore not allowed (Huisman et al. 2012). However, it has been proved that resulting errors in Precise Point Positioning are on millimeter level for horizontal components and below one centimeter for height components. The Australian GDA94 transformation with its comparatively large scale parameter is an exception in this as discrepancies may reach up there to two centimeters.
     3964</p>
     3965
     3966<p>
     3967<u>IGS08:</u> As the orbits and clocks coming from real-time GNSS engine are expected to be in the IGS08 system, no transformation is carried out if this option is selected.
     3968</p>
     3969
     3970<p>
     3971<u>ETRF2000:</u> The formulas for the transformation 'ITRF2008-&gt;ETRF2000' are taken from 'Claude Boucher and Zuheir Altamimi 2008: Specifications for reference frame fixing in the analysis of EUREF GPS campaign', see <u>http://etrs89.ensg.ign.fr/memo-V8.pdf</u>. The following 14 Helmert Transformation Parameters were introduced:
     3972</p>
     3973<p>
     3974<pre>
     3975Translation in X at epoch To:  0.0521 m
     3976Translation in Y at epoch To:  0.0493 m
     3977Translation in Z at epoch To: -0.0585 m
     3978Translation rate in X:  0.0001 m/y
     3979Translation rate in Y:  0.0001 m/y
     3980Translation rate in Z: -0.0018 m/y
     3981Rotation in X at epoch To:  0.891 mas
     3982Rotation in Y at epoch To:  5.390 mas
     3983Rotation in Z at epoch To: -8.712 mas
     3984Rotation rate in X:  0.081 mas/y
     3985Rotation rate in Y:  0.490 mas/y
     3986Rotation rate in Z: -0.792 mas/y
     3987Scale at epoch To : 0.00000000134
     3988Scale rate: 0.00000000008 /y
     3989To: 2000.0
     3990</pre>
     3991</p>
     3992
     3993<p>
     3994<u>NAD83:</u> Formulas for the transformation 'ITRF2008-&gt;NAD83' are taken from 'Chris Pearson, Richard Snay 2013: Introducing HTDP 3.1 to transform coordinates across time and spatial reference frames', GPS Solutions, January 2013, Volume 17, Issue 1, pp 1-15.
     3995</p>
     3996<p>
     3997<pre>
     3998Translation in X at epoch To:  0.99343 m
     3999Translation in Y at epoch To: -1.90331 m
     4000Translation in Z at epoch To: -0.52655 m
     4001Translation rate in X:  0.00079 m/y
     4002Translation rate in Y: -0.00060 m/y
     4003Translation rate in Z: -0.00134 m/y
     4004Rotation in X at epoch To: -25.91467 mas
     4005Rotation in Y at epoch To:  -9.42645 mas
     4006Rotation in Z at epoch To: -11.59935 mas
     4007Rotation rate in X: -0.06667 mas/y
     4008Rotation rate in Y:  0.75744 mas/y
     4009Rotation rate in Z:  0.05133 mas/y
     4010Scale at epoch To : 0.00000000171504
     4011Scale rate: -0.00000000010201 /y
     4012To: 1997.0
     4013</pre>
     4014</p>
     4015
     4016<p>
     4017<u>GDA94:</u> The formulas for the transformation 'ITRF2008-&gt;GDA94' are taken from 'John Dawson, Alex Woods 2010: ITRF to GDA94 coordinate transformations', Journal of Applied Geodesy, 4 (2010), 189-199, de Gruyter 2010. DOI 10.1515/JAG.2010.019'.
     4018</p>
     4019<p>
     4020<pre>
     4021Translation in X at epoch To: -0.08468 m
     4022Translation in Y at epoch To: -0.01942 m
     4023Translation in Z at epoch To:  0.03201 m
     4024Translation rate in X:  0.00142 m/y
     4025Translation rate in Y:  0.00134 m/y
     4026Translation rate in Z:  0.00090 m/y
     4027Rotation in X at epoch To:  0.4254 mas
     4028Rotation in Y at epoch To: -2.2578 mas
     4029Rotation in Z at epoch To: -2.4015 mas
     4030Rotation rate in X: -1.5461 mas/y
     4031Rotation rate in Y: -1.1820 mas/y
     4032Rotation rate in Z: -1.1551 mas/y
     4033Scale at epoch To : 0.000000009710
     4034Scale rate: 0.000000000109 /y
     4035To: 1994.0
     4036</pre>
     4037</p>
     4038
     4039<p>
     4040<u>SIRGAS2000:</u> The formulas for the transformation 'ITRF2008-&gt;SIRGAS2000' were provided via personal communication from CGED-Coordenacao de Geodesia, IBGE/DGC - Diretoria de Geociencias, Brazil.</u>.
     4041</p>
     4042<p>
     4043<pre>
     4044Translation in X at epoch To:  0.0020 m
     4045Translation in Y at epoch To:  0.0041 m
     4046Translation in Z at epoch To:  0.0039 m
     4047Translation rate in X:  0.0000 m/y
     4048Translation rate in Y:  0.0000 m/y
     4049Translation rate in Z:  0.0000 m/y
     4050Rotation in X at epoch To:  0.170 mas
     4051Rotation in Y at epoch To: -0.030 mas
     4052Rotation in Z at epoch To:  0.070 mas
     4053Rotation rate in X:  0.000 mas/y
     4054Rotation rate in Y:  0.000 mas/y
     4055Rotation rate in Z:  0.000 mas/y
     4056Scale at epoch To : -0.000000001000
     4057Scale rate: 0.000000000000 /y
     4058To: 0000.0
     4059</pre>
     4060</p>
     4061
     4062<p>
     4063<u>SIRGAS95:</u> The formulas for the transformation 'ITRF2005-&gt;SIRGAS95' were provided via personal communication from Gustavo Acuha, Laboratorio de Geodesia Fisica y Satelital at Zulia University (LGFS-LUZ), parameters based on values from Table 4.1 of "Terrestrial Reference Frames (April 10, 2009), Chapter 4" in http://tai.bipm.org/iers/convupdt/convupdt_c4.html.</u>.
     4064</p>
     4065<p>
     4066<pre>
     4067Translation in X at epoch To:  0.0077 m
     4068Translation in Y at epoch To:  0.0058 m
     4069Translation in Z at epoch To: -0.0138 m
     4070Translation rate in X:  0.0000 m/y
     4071Translation rate in Y:  0.0000 m/y
     4072Translation rate in Z:  0.0000 m/y
     4073Rotation in X at epoch To:  0.000 mas
     4074Rotation in Y at epoch To:  0.000 mas
     4075Rotation in Z at epoch To: -0.003 mas
     4076Rotation rate in X:  0.000 mas/y
     4077Rotation rate in Y:  0.000 mas/y
     4078Rotation rate in Z:  0.000 mas/y
     4079Scale at epoch To : 0.00000000157
     4080Scale rate: -0.000000000000 /y
     4081To: 1995.4
     4082</pre>
     4083</p>
     4084
     4085<p>
     4086<u>DREF91:</u> 'Referenzkoordinaten fuer SAPOS, Empfehlungen der Projektgruppe SAPOS-Koordinatenmonitoring 2008', Personal communication with Peter Franke, BKG, Germany. The following 14 Helmert Transformation Parameters were introduced:
     4087</p>
     4088<p>
     4089<pre>
     4090Translation in X at epoch To: -0.0118 m
     4091Translation in Y at epoch To:  0.1432 m
     4092Translation in Z at epoch To: -0.1117 m
     4093Translation rate in X:  0.0001 m/y
     4094Translation rate in Y:  0.0001 m/y
     4095Translation rate in Z: -0.0018 m/y
     4096Rotation in X at epoch To:   3.291 mas
     4097Rotation in Y at epoch To:   6.190 mas
     4098Rotation in Z at epoch To: -11.012 mas
     4099Rotation rate in X:  0.081 mas/y
     4100Rotation rate in Y:  0.490 mas/y
     4101Rotation rate in Z: -0.792 mas/y
     4102Scale at epoch To : 0.00000001224
     4103Scale rate: 0.00000000008 /y
     4104To: 2000.0
     4105</pre>
     4106</p>
     4107
     4108<p>
     4109<u>Custom:</u> Feel free to specify your own 14 Helmert Transformation parameters for transformations from IGS08/ITRF2008 into your own target system.
     4110</p>
     4111
     4112<p><img src="IMG/screenshot38.png"/></p>
     4113<p><u>Figure 30:</u> Setting BNC's Custom Transformation Parameters window, example for 'ITRF2008->GDA94'</p>
     4114
     4115<p><h4>2.15.4 <a name="upcom">Center of Mass - optional</h4></p>
     4116<p>
     4117BNC allows to either refer Broadcast Corrections to the satellite's Center of Mass (CoM) or to the satellite's Antenna Phase Center (APC). By default, corrections refer to APC. Tick 'Center of Mass' to refer uploaded corrections to CoM.
     4118</p>
     4119
     4120<p><h4>2.15.5 <a name="upsp3">SP3 File - optional</h4></p>
     4121<p>Specify a path for saving the generated orbit corrections as SP3 orbit files. If the specified directory does not exist, BNC will not create SP3 orbit files. The following is a path example for a Linux system:
     4122
     4123<pre>
     4124   /home/user/BNC${GPSWD}.sp3
     4125</pre>
     4126
     4127Note that '${GPSWD}' produces the GPS Week and Day number in the filename.</p>
     4128<p>
     4129Default is an empty option field, meaning that you do not want BNC to save the uploaded stream content in daily SP3 files.
     4130</p>
     4131<p>
     4132As a SP3 file content should be referred to the satellites' Center of Mass (CoM) while Broadcast Corrections are referred to the satellites' APC, an offset has to be applied which is available from an IGS ANTEX file (see option 'ANTEX File' below). Hence, you should specify the 'ANTEX File' path there if you want to save the stream content in SP3 format. If you do not specify an 'ANTEX File' path, the SP3 file content will be referred to the satellites APCs.
     4133</p>
     4134<p>
     4135The filenames for the daily SP3 files follow the convention for SP3 filenames. The first three characters of each filename are set to 'BNC'. Note that clocks in the SP3 orbit files are not corrected for the conventional periodic relativistic effect.
     4136</p>
     4137<p>
     4138In case the 'Combine Corrections' table contains only one Broadcast Correction stream, BNC will merge that stream with Broadcast Ephemeris to save results in files specified here through SP3 and/or Clock RINEX file path. In such a case you have to define only the SP3 and Clock RINEX file path and no further option in the 'Upload Corrections' table.
     4139</p>
     4140
     4141<p>
     4142Note that BNC outputs a complete list of SP3 'Epoch Header Records', even if no 'Position and Clock Records' are available for certain epochs because of stream outages. Note further that the 'Number of Epochs' in the first SP3 header record may not be correct because that number is not available when the file is created. Depending on your processing software (e.g. Bernese GNSS Software, BSW) it could therefore be necessary to correct an incorrect 'Number of Epochs' in the file before you use it in post processing.
     4143</p>
     4144
     4145<p><h4>2.15.6 <a name="uprinex">RNX File - optional</h4></p>
     4146<p>
     4147The clock corrections generated by BNC for upload can be logged in Clock RINEX format. The file naming follows the RINEX convention.
     4148</p>
     4149<p>
     4150Specify a path for saving the generated clock corrections as Clock RINEX files. If the specified directory does not exist, BNC will not create Clock RINEX files. The following is a path example for a Linux system:
     4151<pre>
     4152   /home/user/BNC${GPSWD}.clk
     4153</pre>
     4154Note that '${GPSWD}' produces the GPS Week and Day number in the filename.
     4155</p>
     4156<p>
     4157Note further that clocks in the Clock RINEX files are not corrected for the conventional periodic relativistic effect.
     4158</p>
     4159
     4160<p><h4>2.15.7 <a name="pidsidiod">PID, SID, IOD - optional</h4></p>
     4161<p>
     4162When applying Broadcast Ephemeris corrections in a PPP algorithm or in a combination of several correction streams, it is important for the client software to receive information on the continuity of discontinuity of the stream contents. Here you can specify three ID's to describe the contents of your Broadcast Ephemeris correction stream when it is uploaded.
     4163<ul>
     4164<li>A 'SSR Provider ID' is issued by RTCM SC-104 on request to identify a SSR service (see e.g. <u>http://software.rtcm-ntrip.org/wiki/SSRProvider</u>). This ID is globally unique. Values vary in the range of 0-65535. Values in the range of 0-255 are reserved for experimental services.</li>
     4165<li>A provider may generate several Broadcast Ephemeris correction streams with different contents. The 'SSR Solution ID' indicates different SSR services of one SSR provider. Values vary in the range of 0-15.</li>
     4166<li>A change of the 'IOD SSR' is used to indicate a change in the SSR generating configuration which may be relevant for the rover. Values vary in the range of 0-15.</li>
     4167</ul>
     4168</p>
     4169
     4170<p><h4>2.15.8 <a name="upinter">Interval - mandatory if 'Upload Table' entries specified</h4></p>
     4171<p>
     4172Select the length of Clock RINEX files and SP3 Orbit files. The default value is 1 day.
     4173</p>
     4174
     4175<p><h4>2.15.9 <a name="upclksmpl">Sampling</h4></p>
     4176<p>BNC requires an orbit corrections sampling interval for the stream to be uploaded and sampling intervals for SP3 and Clock RINEX files. The outgoing stream's clock correction sampling interval follows that of incoming corrections and is therefore nothing to be specified here.</p>
     4177
     4178<p><h4>2.15.9.1 <a name="upclkorb">Orbits (Orb) - mandatory if 'Upload Table' entries specified</h4></p>
     4179<p>Select the stream's orbit correction sampling interval in seconds. A value of 60 sec may be appropriate.</p>
     4180<p> A value of zero '0' tells BNC to upload all orbit correction samples coming in from the real-time GNSS engine along with the clock correction samples to produce combined orbit and clock corrections to Broadcast Ephemeris (1060 for GPS, 1066 for GLONASS).
     4181</p>
     4182<p>
     4183Configuration examples:
     4184</p>
     4185Let us suppose a real-time network engine supporting BNC every <u>5 sec</u> with GPS Broadcast Corrections for orbits, clocks and code biases in 'RTNET' stream format.
     4186<ul>
     4187<li>With 'Sampling Orb' set to '0'  BNC will produce</li>
     4188<ul>
    42794189<li>Every 5 sec a 1059 message for GPS code biases,</li>
    42804190<li>Every 5 sec a 1060 message for combined orbit and clock corrections to GPS Broadcast Ephemeris.</li>
    42814191</ul>
    4282 <p>With &#8216;Sampling Orb&#8217; set to &#8216;5&#8217; BNC will produce</p>
    4283 <ul class="simple">
     4192<br>
     4193<li>With 'Sampling Orb' set to '5' BNC will produce</li>
     4194<ul>
    42844195<li>Every 5 sec a 1057 message for GPS orbit corrections to Broadcast Ephemeris,</li>
    42854196<li>Every 5 sec a 1058 message for GPS clock corrections to Broadcast Ephemeris,</li>
    42864197<li>Every 5 sec a 1059 message for GPS code biases.</li>
    42874198</ul>
    4288 <p>With &#8216;Sampling Orb&#8217; set to &#8216;10&#8217; BNC will produce</p>
    4289 <ul class="simple">
     4199<br>
     4200<li>With 'Sampling Orb' set to '10' BNC will produce</li>
     4201<ul>
    42904202<li>Every 10 sec a 1057 message for GPS orbit corrections to Broadcast Ephemeris,</li>
    42914203<li>Every 5 sec a 1058 message for GPS clock corrections to Broadcast Ephemeris,</li>
    42924204<li>Every 5 sec a 1059 message for GPS code biases.</li>
    42934205</ul>
    4294 <p>Note that only when specifying a value of zero &#8216;0&#8217; (default) for &#8216;Sampling Orb&#8217;, BNC produces combined orbit and clock correction messages.</p>
    4295 </div>
    4296 <div class="section" id="sp3-mandatory-if-sp3-file-is-specified">
    4297 <h5>SP3 - mandatory if &#8216;SP3 File&#8217; is specified<a class="headerlink" href="#sp3-mandatory-if-sp3-file-is-specified" title="Permalink to this headline">¶</a></h5>
    4298 <p>Select the SP3 orbit file sampling interval in minutes. A value of 15 min may be appropriate. A value of zero &#8216;0&#8217; tells BNC to store all available samples into SP3 orbit files.</p>
    4299 </div>
    4300 <div class="section" id="rinex-rnx-mandatory-if-rnx-file-is-specified">
    4301 <h5>RINEX (RNX) - mandatory if &#8216;RNX File&#8217; is specified<a class="headerlink" href="#rinex-rnx-mandatory-if-rnx-file-is-specified" title="Permalink to this headline">¶</a></h5>
    4302 <p>Select the Clock RINEX file sampling interval in seconds. A value of 10 sec may be appropriate. A value of zero &#8216;0&#8217; tells BNC to store all available samples into Clock RINEX files.</p>
    4303 </div>
    4304 </div>
    4305 <div class="section" id="custom-trafo-optional-if-upload-table-entries-specified">
    4306 <h4>Custom Trafo - optional if &#8216;Upload Table&#8217; entries specified<a class="headerlink" href="#custom-trafo-optional-if-upload-table-entries-specified" title="Permalink to this headline">¶</a></h4>
    4307 <p>Hit &#8216;Custom Trafo&#8217; to specify your own 14 parameter Helmert Transformation instead of selecting a predefined transformation through &#8216;System&#8217; button.</p>
    4308 </div>
    4309 <div class="section" id="antex-file-mandatory-if-sp3-file-is-specified">
    4310 <h4>ANTEX File - mandatory if &#8216;SP3 File&#8217; is specified<a class="headerlink" href="#antex-file-mandatory-if-sp3-file-is-specified" title="Permalink to this headline">¶</a></h4>
    4311 <p>IGS provides a file containing absolute phase center variations for GNSS satellite and receiver antennas in ANTEX format. Entering the full path to such an ANTEX file is required here for referring the SP3 file content to the satellite&#8217;s Center of Mass (CoM). If you do not specify an ANTEX file, the SP3 file will contain orbit information which is referred to Antenna Phase Center (APC) instead of CoM.</p>
    4312 <p>The screenshot in <a class="reference internal" href="#fig-31"><span class="std std-numref">Fig. 33</span></a> shows the encoding and uploading of a stream of precise orbits and clocks coming from a real-time network engine in &#8216;RTNET&#8217; ASCII format. The stream is uploaded to Ntrip Broadcaster &#8216;products.igs-ip.net&#8217;. It is referred to APC and IGS08. Uploaded data are locally saved in SP3 and Clock RINEX format. The SSR Provider ID is set to 3. The SSR Solution ID and the Issue of Data SSR are set to 1. Required Broadcast Ephemeris are received via stream &#8216;RTCM3EPH&#8217;.</p>
    4313 <div class="figure" id="id58">
    4314 <span id="fig-31"></span><a class="reference internal image-reference" href="_images/fig_31.png"><img alt="_images/fig_31.png" src="_images/fig_31.png" style="width: 1117.0px; height: 754.0px;" /></a>
    4315 <p class="caption"><span class="caption-number">Fig. 33 </span><span class="caption-text">BNC producing Broadcast Corrections from incoming precise orbits and clocks and uploading them to an Ntrip Broadcaster</span></p>
    4316 </div>
    4317 <p>The screenshot in <a class="reference internal" href="#fig-32"><span class="std std-numref">Fig. 34</span></a> shows the encoding and uploading of several Broadcast Ephemeris correction streams combined from streams CLK11, CLK21, CLK80, and CLK91. Combined streams are uploaded to different Ntrip Broadcasters and referred to different reference systems. One of the uploaded streams is locally saved in SP3 and Clock RINEX format. Different SSR Provider IDs, SSR Solution IDs and Issue of Data IDs are specified. Required Broadcast Ephemeris are received via stream &#8216;RTCM3EPH&#8217;.</p>
    4318 <div class="figure" id="id59">
    4319 <span id="fig-32"></span><a class="reference internal image-reference" href="_images/fig_32.png"><img alt="_images/fig_32.png" src="_images/fig_32.png" style="width: 1126.0px; height: 834.0px;" /></a>
    4320 <p class="caption"><span class="caption-number">Fig. 34 </span><span class="caption-text">BNC uploading a combined Broadcast Correction stream</span></p>
    4321 </div>
    4322 </div>
    4323 </div>
    4324 <div class="section" id="upload-ephemeris">
    4325 <span id="index-41"></span><h3>Upload Ephemeris<a class="headerlink" href="#upload-ephemeris" title="Permalink to this headline">¶</a></h3>
    4326 <p>BNC can generate streams carrying only Broadcast Ephemeris in RTCM Version 3 format and upload them to an Ntrip Broadcaster (Fig. 35). This can be done for individual satellite systems or for all satellite systems,  specifying the parameter ‘System’ for each stream. Note that Broadcast Ephemeris received in real-time have a system specific period of validity in BNC which is defined in accordance with the update rates of the navigation messages.</p>
    4327 <ul class="simple">
     4206</ul>
     4207<br>
     4208Note that only when specifying a value of zero '0' (default) for 'Sampling Orb', BNC produces <u>combined</u> orbit and clock correction messages.
     4209<p><h4>2.15.9.2 <a name="upclksp3">SP3 - mandatory if 'SP3 File' is specified</h4></p>
     4210<p>Select the SP3 orbit file sampling interval in minutes. A value of 15 min may be appropriate. A value of zero '0' tells BNC to store all available samples into SP3 orbit files.</p>
     4211
     4212<p><h4>2.15.9.3 <a name="upclkrnx">RINEX (RNX) - mandatory if 'RNX File' is specified</h4></p>
     4213<p>Select the Clock RINEX file sampling interval in seconds. A value of 10 sec may be appropriate. A value of zero '0' tells BNC to store all available samples into Clock RINEX files.</p>
     4214
     4215<p><h4>2.15.10 <a name="upcustom">Custom Trafo - optional if 'Upload Table' entries specified</h4></p>
     4216<p>Hit 'Custom Trafo' to specify your own 14 parameter Helmert Transformation instead of selecting a predefined transformation through 'System' button.</p>
     4217
     4218<p><h4>2.15.11 <a name="upantex">ANTEX File - mandatory if 'SP3 File' is specified</h4></p>
     4219<p>
     4220IGS provides a file containing absolute phase center variations for GNSS satellite and receiver antennas in ANTEX format. Entering the full path to such an ANTEX file is required here for referring the SP3 file content to the satellite's Center of Mass (CoM). If you do not specify an ANTEX file, the SP3 file will contain orbit information which is referred to Antenna Phase Center (APC) instead of CoM.
     4221</p>
     4222<p>
     4223The following screenshot shows the encoding and uploading of a stream of precise orbits and clocks coming from a real-time network engine in 'RTNET' ASCII format. The stream is uploaded to Ntrip Broadcaster 'products.igs-ip.net'. It is referred to APC and IGS08. Uploaded data are locally saved in SP3 and Clock RINEX format. The SSR Provider ID is set to 3. The SSR Solution ID and the Issue of Data SSR are set to 1. Required Broadcast Ephemeris are received via stream 'RTCM3EPH'.
     4224</p>
     4225<p><img src="IMG/screenshot26.png"/></p>
     4226<p><u>Figure 31:</u> BNC producing Broadcast Corrections from incoming precise orbits and clocks and uploading them to an Ntrip Broadcaster</p>
     4227<p>
     4228The following screenshot shows the encoding and uploading of several Broadcast Ephemeris correction streams combined from streams CLK11, CLK21, CLK80, and CLK91. Combined streams are uploaded to different Ntrip Broadcasters and referred to different reference systems. One of the uploaded streams is locally saved in SP3 and Clock RINEX format. Different SSR Provider IDs, SSR Solution IDs and Issue of Data IDs are specified. Required Broadcast Ephemeris are received via stream 'RTCM3EPH'.
     4229</p>
     4230<p><img src="IMG/screenshot21.png"/></p>
     4231<p><u>Figure 32:</u> BNC uploading a combined Broadcast Correction stream</p>
     4232<p></p>
     4233
     4234<p><h4>2.16 <a name="upeph">Upload Ephemeris</h4></p>
     4235<p>
     4236BNC can generate a stream carrying only Broadcast Ephemeris in RTCM Version 3 format and upload it to an Ntrip Broadcaster.
     4237</p>
     4238
     4239<p>
     4240Note that Broadcast Ephemeris received in real-time have a system specific period of validity in BNC which is defined in accordance with the update rates of the navigation messages.
     4241<ul>
    43284242<li>GPS ephemeris will be interpreted as outdated and ignored when older than 4 hours.</li>
    43294243<li>GLONASS ephemeris will be interpreted as outdated and ignored when older than 1 hour.</li>
    … …  
    43334247<li>QZSS ephemeris will be interpreted as outdated and ignored when older than 4 hours.</li>
    43344248</ul>
    4335 <p>A note &#8216;OUTDATED EPHEMERIS&#8217; will be given in the logfile and the data will be disregarded when necessary. Furthermore, received Broadcast Ephemeris parameters pass through a plausibility check in BNC which allows to ignore incorrect ephemeris data when necessary, leaving a note &#8216;WRONG EPHEMERIS&#8217; in the logfile.</p>
    4336 <div class="section" id="host-port-optional">
    4337 <h4>Host &amp; Port - optional<a class="headerlink" href="#host-port-optional" title="Permalink to this headline">¶</a></h4>
    4338 <p>Specify the &#8216;Host&#8217; IP number or URL of an Ntrip Broadcaster to upload the stream. An empty option field means that you do not want to upload Broadcast Ephemeris. Enter the Ntrip Broadcaster&#8217;s IP &#8216;Port&#8217; number for stream upload. Note that Ntrip Broadcasters are often configured to provide access through more than one port, usually ports 80 and 2101. If you experience communication problems on port 80, you should try to use the alternative port(s).</p>
    4339 </div>
    4340 <div class="section" id="mountpoint-password-mandatory-if-host-is-set">
    4341 <h4>Mountpoint &amp; Password - mandatory if &#8216;Host&#8217; is set<a class="headerlink" href="#mountpoint-password-mandatory-if-host-is-set" title="Permalink to this headline">¶</a></h4>
    4342 <p>BNC uploads a stream to the Ntrip Broadcaster by referring it to a dedicated mountpoint that has been set by its operator. Specify the mountpoint based on the details you received for your stream from the operator. It is often a 4-character ID (capital letters) plus an integer number. The stream upload follows Ntrip Version 1 and may be protected through an upload &#8216;Password&#8217;. Enter the password you received from the Ntrip Broadcaster operator along with the mountpoint.</p>
    4343 </div>
    4344 <div class="section" id="sampling-mandatory-if-host-is-set">
    4345 <h4>Sampling - mandatory if &#8216;Host&#8217; is set<a class="headerlink" href="#sampling-mandatory-if-host-is-set" title="Permalink to this headline">¶</a></h4>
    4346 <p>Select the Broadcast Ephemeris repetition interval in seconds. Default is &#8216;5&#8217;, meaning that a complete set of Broadcast Ephemeris is uploaded every 5 seconds.</p>
    4347 <div class="figure" id="id60">
    4348 <span id="fig-33"></span><a class="reference internal image-reference" href="_images/fig_33.png"><img alt="_images/fig_33.png" src="_images/fig_33.png" style="width: 1000.0px; height: 722.0px;" /></a>
    4349 <p class="caption"><span class="caption-number">Fig. 35 </span><span class="caption-text">BNC producing a Broadcast Ephemeris stream from navigation messages of globally distributed RTCM streams and uploading them in RTCM Version 3 format to an Ntrip Broadcaster</span></p>
    4350 </div>
    4351 </div>
    4352 </div>
    4353 <div class="section" id="streams-canvas">
    4354 <span id="index-42"></span><h3>Streams Canvas<a class="headerlink" href="#streams-canvas" title="Permalink to this headline">¶</a></h3>
    4355 <p>Each stream on an Ntrip Broadcaster (and consequently on BNC) is defined using a unique source ID called mountpoint. An Ntrip Client like BNC accesses the desired stream by referring to its mountpoint. Information about streams and their mountpoints is available through the source-table maintained by the Ntrip Broadcaster. Streams selected for retrieval are listed under the &#8216;Streams&#8217; canvas on BNC&#8217;s main window. The list provides the following information either extracted from source-table(s) produced by the Ntrip Broadcasters or introduced by BNC&#8217;s user (<a class="reference internal" href="#tab-stream-canvas-keys"><span class="std std-numref">Table 12</span></a>).</p>
    4356 <table border="1" class="docutils" id="id61">
    4357 <span id="tab-stream-canvas-keys"></span><span id="index-43"></span><caption><span class="caption-number">Table 12 </span><span class="caption-text">Source table information listed in BNCs Stream Canvas.</span><a class="headerlink" href="#id61" title="Permalink to this table">¶</a></caption>
    4358 <colgroup>
    4359 <col width="11%" />
    4360 <col width="89%" />
    4361 </colgroup>
    4362 <thead valign="bottom">
    4363 <tr class="row-odd"><th class="head"><strong>Keyword</strong></th>
    4364 <th class="head"><strong>Meaning</strong></th>
    4365 </tr>
    4366 </thead>
    4367 <tbody valign="top">
    4368 <tr class="row-even"><td>resource loader</td>
    4369 <td>Ntrip Broadcaster URL and port, or
    4370 TCP/IP host and port, or
    4371 UDP port, or
    4372 Serial input port specification.</td>
    4373 </tr>
    4374 <tr class="row-odd"><td>mountpoint</td>
    4375 <td>Mountpoint introduced by Ntrip Broadcaster, or
    4376 Mountpoint introduced by BNC&#8217;s user.</td>
    4377 </tr>
    4378 <tr class="row-even"><td>decoder</td>
    4379 <td>Name of decoder used to handle the incoming stream content according to its format; editable.</td>
    4380 </tr>
    4381 <tr class="row-odd"><td>lat</td>
    4382 <td>Approximate latitude of reference station, in degrees, north; editable if &#8216;nmea&#8217; = &#8216;yes&#8217;.</td>
    4383 </tr>
    4384 <tr class="row-even"><td>long</td>
    4385 <td>Approximate longitude of reference station, in degrees, east; editable if &#8216;nmea&#8217; = &#8216;yes&#8217;.</td>
    4386 </tr>
    4387 <tr class="row-odd"><td>nmea</td>
    4388 <td>Indicates whether or not streaming needs to be initiated by BNC through sending NMEA-GGA message carrying position coordinates in &#8216;lat&#8217; and &#8216;long&#8217;.</td>
    4389 </tr>
    4390 <tr class="row-even"><td>ntrip</td>
    4391 <td>Selected Ntrip transport protocol version (1, 2, 2s, R, or U), or
    4392 &#8216;N&#8217; for TCP/IP streams without Ntrip, or
    4393 &#8216;UN&#8217; for UDP streams without Ntrip, or
    4394 &#8216;S&#8217; for serial input streams without Ntrip.</td>
    4395 </tr>
    4396 <tr class="row-odd"><td>bytes</td>
    4397 <td>Number of bytes received.</td>
    4398 </tr>
    4399 </tbody>
     4249A note 'OUTDATED EPHEMERIS' will be given in the logfile and the data will be disregarded when necessary.
     4250</p>
     4251<p>
     4252Furthermore, received Broadcast Ephemeris parameters pass through a plausibility check in BNC which allows to ignore incorrect ephemeris data when necessary, leaving a note 'WRONG EPHEMERIS' in the logfile.
     4253</p>
     4254
     4255<p><h4>2.16.1 <a name="brdcserver">Host &amp; Port - optional</h4></p>
     4256<p>
     4257Specify the 'Host' IP number or URL of an Ntrip Broadcaster to upload the stream. An empty option field means that you do not want to upload Broadcast Ephemeris.
     4258</p>
     4259<p>
     4260Enter the Ntrip Broadcaster's IP 'Port' number for stream upload. Note that Ntrip Broadcasters are often configured to provide access through more than one port, usually ports 80 and 2101. If you experience communication problems on port 80, you should try to use the alternative port(s).
     4261</p>
     4262
     4263<p><h4>2.16.2 <a name="brdcmount">Mountpoint &amp; Password - mandatory if 'Host' is set</h4></p>
     4264<p>
     4265BNC uploads a stream to the Ntrip Broadcaster by referring it to a dedicated mountpoint that has been set by its operator. Specify the mountpoint based on the details you received for your stream from the operator. It is often a 4-character ID (capital letters) plus an integer number.</p>
     4266<p>The stream upload follows Ntrip Version 1 and may be protected through an upload 'Password'. Enter the password you received from the Ntrip Broadcaster operator along with the mountpoint.</p>
     4267</p>
     4268
     4269<p><h4>2.16.3 <a name="brdcsmpl">Sampling - mandatory if 'Host' is set</h4></p>
     4270Select the Broadcast Ephemeris repetition interval in seconds. Default is '5', meaning that a complete set of Broadcast Ephemeris is uploaded every 5 seconds.
     4271</p>
     4272
     4273<p><img src="IMG/screenshot28.png"/></p>
     4274<p><u>Figure 33:</u> BNC producing a Broadcast Ephemeris stream from navigation messages of globally distributed RTCM streams and uploading them in RTCM Version 3 format to an Ntrip Broadcaster</p>
     4275
     4276<p><h4>2.17 <a name="streams">Streams Canvas</h4></p>
     4277<p>
     4278Each stream on an Ntrip Broadcaster (and consequently on BNC) is defined using a unique source ID called mountpoint. An Ntrip Client like BNC accesses the desired stream by referring to its mountpoint. Information about streams and their mountpoints is available through the source-table maintained by the Ntrip Broadcaster.
     4279</p>
     4280
     4281<p>
     4282Streams selected for retrieval are listed under the 'Streams' canvas on BNC's main window. The list provides the following information either extracted from source-table(s) produced by the Ntrip Broadcasters or introduced by BNC's user:
     4283</p>
     4284<p>
     4285<table>
     4286<tr><td>'resource loader'&nbsp; </td><td>Ntrip Broadcaster URL and port, or<br>TCP/IP host and port, or<br>UDP port, or<br>Serial input port specification.</td></tr>
     4287<tr><td>'mountpoint' &nbsp;</td><td>Mountpoint introduced by Ntrip Broadcaster, or<br>Mountpoint introduced by BNC's user.</td></tr>
     4288<tr><td>'decoder' &nbsp;</td><td>Name of decoder used to handle the incoming stream content according to its format; editable.</td></tr>
     4289<tr><td>'lat' &nbsp;</td><td>Approximate latitude of reference station, in degrees, north; editable if 'nmea' = 'yes'.</td></tr>
     4290<tr><td>'long' &nbsp;</td><td>Approximate longitude of reference station, in degrees, east; editable if 'nmea' = 'yes'.</td></tr>
     4291<tr><td>'nmea' &nbsp;</td><td>Indicates whether or not streaming needs to be initiated by BNC through sending NMEA-GGA message carrying position coordinates in 'lat' and 'long'.</td></tr>
     4292<tr><td>'ntrip' &nbsp;</td><td>Selected Ntrip transport protocol version (1, 2, 2s, R, or U), or<br>'N' for TCP/IP streams without Ntrip, or<br>'UN' for UDP streams without Ntrip, or<br>'S' for serial input streams without Ntrip.</td></tr>
     4293<tr><td>'bytes' &nbsp;</td><td>Number of bytes received.
    44004294</table>
    4401 <div class="section" id="edit-streams">
    4402 <h4>Edit Streams<a class="headerlink" href="#edit-streams" title="Permalink to this headline">¶</a></h4>
    4403 <p>BNC automatically allocates one of its internal decoders to a stream based on the stream&#8217;s &#8216;format&#8217; and &#8216;format-details&#8217; as given in the source-table. However, there might be cases where you need to override the automatic selection due to an incorrect source-table for example. BNC allows users to manually select the required decoder by editing the decoder string. Double click on the &#8216;decoder&#8217; field, enter your preferred decoder and then hit Enter. Accepted decoder strings are &#8216;RTCM_2.x&#8217;, &#8216;RTCM_3.x&#8217; and &#8216;RTNET&#8217;.</p>
    4404 <p>In case you need to log the raw data as it is, BNC allows users to by-pass its decoders and directly save the input in daily logfiles. To do this, specify the decoder string as &#8216;ZERO&#8217;. The generated filenames are created from the characters of the streams mountpoints plus two-digit numbers each for year, month, and day. Example: Setting the &#8216;decoder&#8217; string for mountpoint WTZZ0 to &#8216;ZERO&#8217; and running BNC on March 29, 2007 would save raw data in a file named WTZZ0_070329.</p>
    4405 <p>BNC can also retrieve streams from virtual reference stations (VRS). To initiate these streams, an approximate rover position needs to be sent in NMEA format to the Ntrip Broadcaster. In return, a user-specific data stream is generated, typically by Network RTK software. VRS streams are indicated by a &#8216;yes&#8217; in the source-table as well as in the &#8216;nmea&#8217; column on the &#8216;Streams&#8217; canvas in BNC&#8217;s main window. They are customized exactly to the latitude and longitude transmitted to the Ntrip Broadcaster via NMEA GGA sentences.</p>
    4406 <p>If NMEA GGA sentences are not coming from a serially connected GNSS rover, BNC simulates them from the default latitude and longitude of the source-table as shown in the &#8216;lat&#8217; and &#8216;long&#8217; columns on the &#8216;Streams&#8217; canvas. However, in many cases you would probably want to change these defaults according to your requirement. Double-click on &#8216;lat&#8217; and &#8216;long&#8217; fields, enter the values you wish to send and then hit Enter. The format is in positive north latitude degrees (e.g. for northern hemisphere: 52.436, for southern hemisphere: -24.567) and eastern longitude degrees (example: 358.872 or -1.128). Only streams with a &#8216;yes&#8217; in their &#8216;nmea&#8217; column can be edited. The position should preferably be a point within the VRS service area of the network. RINEX files generated from these streams will contain an additional COMMENT line in the header beginning with &#8216;NMEA&#8217; showing the &#8216;lat&#8217; and &#8216;long&#8217; used.</p>
    4407 <p>Note that when running BNC in a Local Area Network (LAN), NMEA strings may be blocked by a proxy server, firewall or virus scanner when not using the Ntrip Version 2 transport protocol.</p>
    4408 </div>
    4409 <div class="section" id="delete-streams">
    4410 <h4>Delete Streams<a class="headerlink" href="#delete-streams" title="Permalink to this headline">¶</a></h4>
    4411 <p>To remove a stream from the &#8216;Streams&#8217; canvas in the main window, highlight it by clicking on it and hit the &#8216;Delete Stream&#8217; button. You can also remove multiple streams simultaneously by highlighting them using +Shift or +Ctrl.</p>
    4412 </div>
    4413 <div class="section" id="reconfigure-stream-selection-on-the-fly">
    4414 <h4>Reconfigure Stream Selection On-the-fly<a class="headerlink" href="#reconfigure-stream-selection-on-the-fly" title="Permalink to this headline">¶</a></h4>
    4415 <p>The streams selection can be changed on-the-fly without interrupting uninvolved threads in the running BNC process.</p>
    4416 <p>Window mode: Hit &#8216;Reread &amp; Save Configuration&#8217; while BNC is in window mode and already processing data to let changes of your stream selection immediately become effective.</p>
    4417 <p>No window mode: When operating BNC online in &#8216;no window&#8217; mode (command line option -nw), you force BNC to reread its &#8216;mountPoints&#8217; configuration option from disk at pre-defined intervals. Select &#8216;1 min&#8217;, &#8216;1 hour&#8217;, or &#8216;1 day&#8217; as &#8216;Reread configuration&#8217; option to reread the &#8216;mountPoints&#8217; option every full minute, hour, or day. This lets a &#8216;mountPoints&#8217; option edited in between in the configuration file become effective without terminating uninvolved threads. See section &#8216;Configuration Examples&#8217; for configuration file examples and section &#8216;Reread Configuration&#8217; for a list of other on-the-fly changeable options.</p>
    4418 </div>
    4419 </div>
    4420 <div class="section" id="logging-canvas">
    4421 <span id="index-44"></span><h3>Logging Canvas<a class="headerlink" href="#logging-canvas" title="Permalink to this headline">¶</a></h3>
    4422 <p>The &#8216;Logging Canvas&#8217; above the bottom menu bar on the main window labeled &#8216;Log&#8217;, &#8216;Throughput&#8217;, &#8216;Latency&#8217;, and &#8216;PPP Plot&#8217; provides control of BNC&#8217;s activities. Tabs are available for continuously showing logfile content, for a plot controlling the bandwidth consumption, a plot showing stream latencies, and for time series plots of PPP results.</p>
    4423 <div class="section" id="log">
    4424 <h4>Log<a class="headerlink" href="#log" title="Permalink to this headline">¶</a></h4>
    4425 <p>Records of BNC&#8217;s activities are shown in the &#8216;Log&#8217; tab. They can be saved into a file when a valid path is specified in the &#8216;Logfile (full path)&#8217; field.</p>
    4426 </div>
    4427 <div class="section" id="throughput">
    4428 <h4>Throughput<a class="headerlink" href="#throughput" title="Permalink to this headline">¶</a></h4>
    4429 <p>The bandwidth consumption per stream is shown in the &#8216;Throughput&#8217; tab in bits per second (bps) or kilobits per second (kbps). <a class="reference internal" href="#fig-34"><span class="std std-numref">Fig. 36</span></a> shows an example for the bandwidth consumption of incoming streams.</p>
    4430 <div class="figure" id="id62">
    4431 <span id="fig-34"></span><a class="reference internal image-reference" href="_images/fig_34.png"><img alt="_images/fig_34.png" src="_images/fig_34.png" style="width: 783.0px; height: 177.0px;" /></a>
    4432 <p class="caption"><span class="caption-number">Fig. 36 </span><span class="caption-text">Bandwidth consumption of RTCM streams received by BNC</span></p>
    4433 </div>
    4434 </div>
    4435 <div class="section" id="id20">
    4436 <h4>Latency<a class="headerlink" href="#id20" title="Permalink to this headline">¶</a></h4>
    4437 <p>The latency of observations in each incoming stream is shown in the &#8216;Latency&#8217; tab in milliseconds or seconds. Streams not carrying observations (e.g. those providing only Broadcast Ephemeris messages) or having an outage are not considered here and shown in red color. Note that the calculation of correct latencies requires the clock of the host computer to be properly synchronized. <a class="reference internal" href="#fig-35"><span class="std std-numref">Fig. 37</span></a> shows an example for the latency of incoming streams.</p>
    4438 <div class="figure" id="id63">
    4439 <span id="fig-35"></span><a class="reference internal image-reference" href="_images/fig_35.png"><img alt="_images/fig_35.png" src="_images/fig_35.png" style="width: 782.0px; height: 177.0px;" /></a>
    4440 <p class="caption"><span class="caption-number">Fig. 37 </span><span class="caption-text">Latency of RTCM streams received by BNC</span></p>
    4441 </div>
    4442 </div>
    4443 <div class="section" id="ppp-plot">
    4444 <h4>PPP Plot<a class="headerlink" href="#ppp-plot" title="Permalink to this headline">¶</a></h4>
    4445 <p>Precise Point Positioning time series of North (red), East (green) and Up (blue) coordinate components are shown in the &#8216;PPP Plot&#8217; tab when a &#8216;Mountpoint&#8217; option is defined under PPP (4). Values are referred to a priori reference coordinates. The time as given in format [hh:mm] refers to GPS Time. The sliding PPP time series window covers a period of 5 minutes. Note that it may take up to 30 seconds or more until the first PPP solutions becomes available. <a class="reference internal" href="#fig-36"><span class="std std-numref">Fig. 38</span></a> shows the screenshot of a PPP time series plot of North, East and Up coordinate displacements.</p>
    4446 <div class="figure" id="id64">
    4447 <span id="fig-36"></span><a class="reference internal image-reference" href="_images/fig_36.png"><img alt="_images/fig_36.png" src="_images/fig_36.png" style="width: 784.0px; height: 305.0px;" /></a>
    4448 <p class="caption"><span class="caption-number">Fig. 38 </span><span class="caption-text">Example for time series plot of displacements produced by BNC</span></p>
    4449 </div>
    4450 </div>
    4451 </div>
    4452 <div class="section" id="bottom-menu-bar">
    4453 <h3>Bottom Menu Bar<a class="headerlink" href="#bottom-menu-bar" title="Permalink to this headline">¶</a></h3>
    4454 <p>The bottom menu bar allows to add or delete streams to or from BNC&#8217;s configuration and to start or stop it. It also provides access to BNC&#8217;s online help function. The &#8216;Add Stream&#8217; button opens a window that allows users to select one of several input communication links, see <a class="reference internal" href="#fig-37"><span class="std std-numref">Fig. 39</span></a>.</p>
    4455 <div class="figure" id="id65">
    4456 <span id="fig-37"></span><a class="reference internal image-reference" href="_images/fig_37.png"><img alt="_images/fig_37.png" src="_images/fig_37.png" style="width: 427.0px; height: 115.0px;" /></a>
    4457 <p class="caption"><span class="caption-number">Fig. 39 </span><span class="caption-text">Steam input communication links accepted by BNC</span></p>
    4458 </div>
    4459 <div class="section" id="add-stream">
    4460 <h4>Add Stream<a class="headerlink" href="#add-stream" title="Permalink to this headline">¶</a></h4>
    4461 <p>Button &#8216;Add Stream&#8217; allows you to pull streams either from an Ntrip Broadcaster or from a TCP/IP port, UPD port, or serial port.</p>
    4462 </div>
    4463 <div class="section" id="add-delete-stream-coming-from-caster">
    4464 <h4>Add/Delete Stream - Coming from Caster<a class="headerlink" href="#add-delete-stream-coming-from-caster" title="Permalink to this headline">¶</a></h4>
    4465 <p>Button &#8216;Add Stream&#8217; &gt; &#8216;Coming from Caster&#8217; opens a window that allows users to select data streams from an Ntrip Broadcaster according to their mountpoints and show a distribution map of offered streams.</p>
    4466 <p>Button ‘Delete Stream’ allows you to delete streams previously selected for retrieval as listed under the ‘Streams’ canvas on BNC’s main window.</p>
    4467 <div class="section" id="caster-host-and-port-mandatory">
    4468 <h5>Caster Host and Port - mandatory<a class="headerlink" href="#caster-host-and-port-mandatory" title="Permalink to this headline">¶</a></h5>
    4469 <p>Enter the Ntrip Broadcaster host IP and port number. Note that EUREF and IGS operate Ntrip Broadcasters at <a class="reference external" href="http://www.euref-ip.net/home">http://www.euref-ip.net/home</a>, <a class="reference external" href="http://www.igs-ip.net/home">http://www.igs-ip.net/home</a>, <a class="reference external" href="http://products.igs-ip.net/home">http://products.igs-ip.net/home</a> and <a class="reference external" href="http://mgex.igs-ip.net/home">http://mgex.igs-ip.net/home</a>.</p>
    4470 </div>
    4471 <div class="section" id="casters-table-optional">
    4472 <h5>Casters Table - optional<a class="headerlink" href="#casters-table-optional" title="Permalink to this headline">¶</a></h5>
    4473 <p>It may be that you are not sure about your Ntrip Broadcaster&#8217;s host and port number or you are interested in other broadcaster installations operated elsewhere. Hit &#8216;Show&#8217; for a table of known broadcasters maintained at www.rtcm-ntrip.org/home. A window opens which allows selecting a broadcaster for stream retrieval, see <a class="reference internal" href="#fig-38"><span class="std std-numref">Fig. 40</span></a>.</p>
    4474 <div class="figure" id="id66">
    4475 <span id="fig-38"></span><a class="reference internal image-reference" href="_images/fig_38.png"><img alt="_images/fig_38.png" src="_images/fig_38.png" style="width: 1123.0px; height: 710.0px;" /></a>
    4476 <p class="caption"><span class="caption-number">Fig. 40 </span><span class="caption-text">BNC&#8217;s &#8216;Select Broadcaster&#8217; table</span></p>
    4477 </div>
    4478 </div>
    4479 <div class="section" id="user-and-password-mandatory-for-protected-streams">
    4480 <h5>User and Password - mandatory for protected streams<a class="headerlink" href="#user-and-password-mandatory-for-protected-streams" title="Permalink to this headline">¶</a></h5>
    4481 <p>Streams on Ntrip Broadcasters may be protected. Enter a valid &#8216;User&#8217; ID and &#8216;Password&#8217; for access to protected streams. Accounts are usually provided per Ntrip Broadcaster through a registration procedure. Register through <a class="reference external" href="http://register.rtcm-ntrip.org">http://register.rtcm-ntrip.org</a> for access to protected streams from EUREF and IGS.</p>
    4482 </div>
    4483 <div class="section" id="get-table">
    4484 <h5>Get Table<a class="headerlink" href="#get-table" title="Permalink to this headline">¶</a></h5>
    4485 <p>Use the &#8216;Get Table&#8217; button to download the source-table from the Ntrip Broadcaster. Pay attention to data fields &#8216;format&#8217; and &#8216;format-details&#8217;. Keep in mind that BNC can only decode and convert streams that come in RTCM Version 2, RTCM Version 3, or RTNET format. For access to observations, Broadcast Ephemeris and Broadcast Corrections in RTCM format, streams must contain a selection of appropriate message types as listed in the Annex, cf. data field &#8216;format-details&#8217; for available message types and their repetition rates in brackets. Note that in order to produce RINEX Navigation files, RTCM Version 3 streams containing message types 1019 (GPS) and 1020 (GLONASS) and 1043 (SBAS) and 1044 (QZSS) and 1045, 1046 (Galileo) and 63 (BDS/BeiDou, tentative message number) are required. Select your streams line by line, use +Shift and +Ctrl when necessary. <a class="reference internal" href="#fig-39"><span class="std std-numref">Fig. 41</span></a> provides an example source-table.</p>
    4486 <p>The content of data field &#8216;nmea&#8217; tells you whether a stream retrieval needs to be initiated by BNC through sending an NMEA-GGA message carrying approximate position coordinates (Virtual Reference Station, VRS).</p>
    4487 <p>Hit &#8216;OK&#8217; to return to the main window. If you wish, you can click on &#8216;Add Stream&#8217; and repeat the process of retrieving streams from different casters.</p>
    4488 <div class="figure" id="id67">
    4489 <span id="fig-39"></span><a class="reference internal image-reference" href="_images/fig_39.png"><img alt="_images/fig_39.png" src="_images/fig_39.png" style="width: 1064.0px; height: 434.0px;" /></a>
    4490 <p class="caption"><span class="caption-number">Fig. 41 </span><span class="caption-text">Broadcaster source-table shown by BNC</span></p>
    4491 </div>
    4492 </div>
    4493 <div class="section" id="ntrip-version-mandatory">
    4494 <h5>Ntrip Version - mandatory<a class="headerlink" href="#ntrip-version-mandatory" title="Permalink to this headline">¶</a></h5>
    4495 <p>Some limitations and deficiencies of the Ntrip Version 1 stream transport protocol are solved in Ntrip Version 2. Improvements mainly concern a full HTTP compatibility in view of requirements coming from proxy servers. Version 2 is backwards compatible to Version 1. Options implemented in BNC are summarized in <a class="reference internal" href="#tab-ntrip-options"><span class="std std-numref">Table 13</span></a>.</p>
    4496 <table border="1" class="docutils" id="id68">
    4497 <span id="tab-ntrip-options"></span><span id="index-45"></span><caption><span class="caption-number">Table 13 </span><span class="caption-text">Ntrip options implemented in BNC.</span><a class="headerlink" href="#id68" title="Permalink to this table">¶</a></caption>
    4498 <colgroup>
    4499 <col width="30%" />
    4500 <col width="70%" />
    4501 </colgroup>
    4502 <thead valign="bottom">
    4503 <tr class="row-odd"><th class="head"><strong>Option</strong></th>
    4504 <th class="head"><strong>Meaning</strong></th>
    4505 </tr>
    4506 </thead>
    4507 <tbody valign="top">
    4508 <tr class="row-even"><td>1</td>
    4509 <td>Ntrip Version 1, TCP/IP</td>
    4510 </tr>
    4511 <tr class="row-odd"><td>2</td>
    4512 <td>Ntrip Version 2 in TCP/IP mode</td>
    4513 </tr>
    4514 <tr class="row-even"><td>2s</td>
    4515 <td>Ntrip Version 2 in TCP/IP mode via SSL</td>
    4516 </tr>
    4517 <tr class="row-odd"><td>R</td>
    4518 <td>Ntrip Version 2 in RTSP/RTP mode</td>
    4519 </tr>
    4520 <tr class="row-even"><td>U</td>
    4521 <td>Ntrip Version 2 in UDP mode</td>
    4522 </tr>
    4523 </tbody>
     4295</p>
     4296
     4297<p><h4>2.17.1 <a name="streamedit">Edit Streams</h4></p>
     4298<ul>
     4299<li>
     4300BNC automatically allocates one of its internal decoders to a stream based on the stream's 'format' and 'format-details' as given in the source-table. However, there might be cases where you need to override the automatic selection due to an incorrect source-table for example. BNC allows users to manually select the required decoder by editing the decoder string. Double click on the 'decoder' field, enter your preferred decoder and then hit Enter. Accepted decoder strings are 'RTCM_2.x', 'RTCM_3.x' and 'RTNET'.
     4301</li>
     4302<li>
     4303In case you need to log the raw data as it is, BNC allows users to by-pass its decoders and directly save the input in daily logfiles. To do this, specify the decoder string as 'ZERO'. The generated filenames are created from the characters of the streams mountpoints plus two-digit numbers each for year, month, and day. Example: Setting the 'decoder' string for mountpoint WTZZ0 to 'ZERO' and running BNC on March 29, 2007 would save raw data in a file named WTZZ0_070329.
     4304</li>
     4305<li>
     4306BNC can also retrieve streams from virtual reference stations (VRS). To initiate these streams, an approximate rover position needs to be sent in NMEA format to the Ntrip Broadcaster. In return, a user-specific data stream is generated, typically by Network RTK software. VRS streams are indicated by a 'yes' in the source-table as well as in the 'nmea' column on the 'Streams' canvas in BNC's main window. They are customized exactly to the latitude and longitude transmitted to the Ntrip Broadcaster via NMEA GGA sentences.
     4307<br>If NMEA GGA sentences are not coming from a serially connected GNSS rover, BNC simulates them from the default latitude and longitude of the source-table as shown in the 'lat' and 'long' columns on the 'Streams' canvas. However, in many cases you would probably want to change these defaults according to your requirement. Double-click on 'lat' and 'long' fields, enter the values you wish to send and then hit Enter. The format is in positive north latitude degrees (e.g. for northern hemisphere: 52.436, for southern hemisphere: -24.567) and eastern longitude degrees (example: 358.872 or -1.128). Only streams with a 'yes' in their 'nmea' column can be edited. The position should preferably be a point within the VRS service area of the network. RINEX files generated from these streams will contain an additional COMMENT line in the header beginning with 'NMEA' showing the 'lat' and 'long' used.
     4308<br>Note that when running BNC in a Local Area Network (LAN), NMEA strings may be blocked by a proxy server, firewall or virus scanner when not using the Ntrip Version 2 transport protocol.
     4309</li>
     4310</ul>
     4311
     4312<p><h4>2.17.2 <a name="streamdelete">Delete Stream</h4></p>
     4313<p>
     4314To remove a stream from the 'Streams' canvas in the main window, highlight it by clicking on it and hit the 'Delete Stream' button. You can also remove multiple streams simultaneously by highlighting them using +Shift or +Ctrl.</p>
     4315
     4316<p><h4>2.17.3 <a name="streamconf">Reconfigure Stream Selection On-the-fly</h4></p>
     4317<p>
     4318The streams selection can be changed on-the-fly without interrupting uninvolved threads in the running BNC process.
     4319</p>
     4320<p>
     4321<u>Window mode:</u> Hit 'Reread &amp; Save Configuration' while BNC is in window mode and already processing data to let changes of your stream selection immediately become effective.
     4322<p>
     4323<u>No window mode:</u> When operating BNC online in 'no window' mode (command line option -nw), you force BNC to reread its 'mountPoints' configuration option from disk at pre-defined intervals. Select '1 min', '1 hour', or '1 day' as 'Reread configuration' option to reread the 'mountPoints' option every full minute, hour, or day. This lets a 'mountPoints' option edited in between in the configuration file become effective without terminating uninvolved threads. See section 'Configuration Examples' for configuration file examples and section 'Reread Configuration' for a list of other on-the-fly changeable options.
     4324</p>
     4325
     4326<p><h4>2.18 <a name="logs">Logging Canvas</h4></p>
     4327<p>
     4328The 'Logging Canvas' above the bottom menu bar on the main window labeled 'Log', 'Throughput', 'Latency', and 'PPP Plot' provides control of BNC's activities. Tabs are available for continuously showing logfile content, for a plot controlling the bandwidth consumption, a plot showing stream latencies, and for time series plots of PPP results.
     4329</p>
     4330<p><h4>2.18.1 <a name="logfile">Log</h4></p>
     4331<p>
     4332Records of BNC's activities are shown in the 'Log' tab. They can be saved into a file when a valid path is specified in the 'Logfile (full path)' field.
     4333</p>
     4334
     4335<p><h4>2.18.2 <a name="throughput">Throughput</h4></p>
     4336<p>
     4337The bandwidth consumption per stream is shown in the 'Throughput' tab in bits per second (bps) or kilobits per second (kbps). The following figure shows an example for the bandwidth consumption of incoming streams.
     4338</p>
     4339
     4340<p><img src="IMG/screenshot08.png"/></p>
     4341<p><u>Figure 34:</u> Bandwidth consumption of RTCM streams received by BNC</p>
     4342
     4343<p><h4>2.18.3 <a name="latency">Latency</h4></p>
     4344<p>
     4345The latency of observations in each incoming stream is shown in the 'Latency' tab in milliseconds or seconds. Streams not carrying observations (e.g. those providing only Broadcast Ephemeris messages) or having an outage are not considered here and shown in red color. Note that the calculation of correct latencies requires the clock of the host computer to be properly synchronized. The next figure shows an example for the latency of incoming streams.
     4346</p>
     4347
     4348<p><img src="IMG/screenshot07.png"/></p>
     4349<p><u>Figure 35:</u> Latency of RTCM streams received by BNC</p>
     4350
     4351<p><h4>2.18.4 <a name="ppptab">PPP Plot</h4></p>
     4352<p>
     4353Precise Point Positioning time series of North (red), East (green) and Up (blue) coordinate components are shown in the 'PPP Plot' tab when a 'Mountpoint' option is defined under PPP (4). Values are referred to a priori reference coordinates. The time as given in format [hh:mm] refers to GPS Time. The sliding PPP time series window covers a period of 5 minutes. Note that it may take up to 30 seconds or more until the first PPP solutions becomes available. The following figure shows the screenshot of a PPP time series plot of North, East and Up coordinate displacements.
     4354</p>
     4355
     4356<p><img src="IMG/screenshot13.png"/></p>
     4357<p><u>Figure 36:</u> Example for time series plot of displacements produced by BNC</p>
     4358
     4359<p><h4>2.19 <a name="bottom">Bottom Menu Bar</h4></p>
     4360<p>
     4361The bottom menu bar allows to add or delete streams to or from BNC's configuration and to start or stop it. It also provides access to BNC's online help function. The 'Add Stream' button opens a window that allows users to select one of several input communication links, see figure below.
     4362</p>
     4363
     4364<p><img src="IMG/screenshot06.png"/></p>
     4365<p><u>Figure 37:</u> Steam input communication links accepted by BNC</p>
     4366
     4367<p><h4>2.19.1 <a name="streamadd">Add Stream</h4></p>
     4368<p>
     4369Button 'Add Stream' allows you to pull streams either from an Ntrip Broadcaster or from a TCP/IP port, UPD port, or serial port.
     4370</p>
     4371
     4372<p><h4>2.19.1.1 <a name="streamcaster">Add Stream - Coming from Caster</h4></p>
     4373
     4374<p>
     4375Button 'Add Stream' &gt; 'Coming from Caster' opens a window that allows users to select data streams from an Ntrip Broadcaster according to their mountpoints and show a distribution map of offered streams.
     4376</p>
     4377
     4378<p><h4>2.19.1.1.1 <a name="streamhost">Caster Host and Port - mandatory</h4></p>
     4379<p>
     4380Enter the Ntrip Broadcaster host IP and port number. Note that EUREF and IGS operate Ntrip Broadcasters at <u>http://www.euref-ip.net/home</u>, <u>http://www.igs-ip.net/home</u>, <u>http://products.igs-ip.net/home</u> and <u>http://mgex.igs-ip.net/home</u>.
     4381</p>
     4382
     4383<p><h4>2.19.1.1.2 <a name="streamtable">Casters Table - optional</h4></p>
     4384<p>
     4385It may be that you are not sure about your Ntrip Broadcaster's host and port number or you are interested in other broadcaster installations operated elsewhere. Hit 'Show' for a table of known broadcasters maintained at <u>www.rtcm-ntrip.org/home</u>. A window opens which allows selecting a broadcaster for stream retrieval, see figure below.
     4386</p>
     4387</p>
     4388<p><img src="IMG/screenshot04.png"/></p>
     4389
     4390<p><u>Figure 38:</u> BNC's 'Select Broadcaster' table</p>
     4391
     4392<p><h4>2.19.1.1.3 <a name="streamuser">User and Password - mandatory for protected streams</h4></p>
     4393<p>
     4394Streams on Ntrip Broadcasters may be protected. Enter a valid 'User' ID and 'Password' for access to protected streams. Accounts are usually provided per Ntrip Broadcaster through a registration procedure. Register through <u>http://register.rtcm-ntrip.org</u> for access to protected streams from EUREF and IGS.
     4395</p>
     4396
     4397<p><h4>2.19.1.1.4 <a name="gettable">Get Table</h4></p>
     4398<p>
     4399Use the 'Get Table' button to download the source-table from the Ntrip Broadcaster. Pay attention to data fields 'format' and 'format-details'. Keep in mind that BNC can only decode and convert streams that come in RTCM Version 2, RTCM Version 3, or RTNET format. For access to observations, Broadcast Ephemeris and Broadcast Corrections in RTCM format, streams must contain a selection of appropriate message types as listed in the Annex, cf. data field 'format-details' for available message types and their repetition rates in brackets. Note that in order to produce RINEX Navigation files, RTCM Version 3 streams containing message types 1019 (GPS) and 1020 (GLONASS) and 1043 (SBAS) and 1044 (QZSS) and 1045, 1046 (Galileo) and 63 (BDS/BeiDou, tentative message number) are required. Select your streams line by line, use +Shift and +Ctrl when necessary. The figure below provides an example source-table.
     4400</p>
     4401<p>
     4402The content of data field 'nmea' tells you whether a stream retrieval needs to be initiated by BNC through sending an NMEA-GGA message carrying approximate position coordinates (Virtual Reference Station, VRS).
     4403</p>
     4404<p>
     4405Hit 'OK' to return to the main window. If you wish, you can click on 'Add Stream' and repeat the process of retrieving streams from different casters.
     4406</p>
     4407<p><img src="IMG/screenshot05.png"/></p>
     4408<p><u>Figure 39:</u> Broadcaster source-table shown by BNC</p>
     4409
     4410<p><h4>2.19.1.1.5 <a name="ntripv">Ntrip Version - mandatory</h4></p>
     4411<p>
     4412Some limitations and deficiencies of the Ntrip Version 1 stream transport protocol are solved in Ntrip Version 2. Improvements mainly concern a full HTTP compatibility in view of requirements coming from proxy servers. Version 2 is backwards compatible to Version 1. Options implemented in BNC are:
     4413</p>
     4414
     4415<p>
     4416<table>
     4417<tr></tr>
     4418<tr><td><b>Option &nbsp;  &nbsp; </b></td><td><b>Meaning</b></td></tr>
     4419<tr><td>&nbsp; &nbsp; 1</td><td>Ntrip Version 1, TCP/IP</td></tr>
     4420<tr><td>&nbsp; &nbsp; 2</td><td>Ntrip Version 2 in TCP/IP mode</td></tr>
     4421<tr><td>&nbsp; &nbsp; 2s</td><td>Ntrip Version 2 in TCP/IP mode via SSL</td></tr>
     4422<tr><td>&nbsp; &nbsp; R</td><td>Ntrip Version 2 in RTSP/RTP mode</td></tr>
     4423<tr><td>&nbsp; &nbsp; U</td><td>Ntrip Version 2 in UDP mode</td></tr>
    45244424</table>
    4525 <p>If Ntrip Version 2 is supported by the broadcaster:</p>
    4526 <ul class="simple">
    4527 <li>Try using option &#8216;2&#8217; if your streams are otherwise blocked by a proxy server operated in front of BNC.</li>
    4528 <li>When using Ntrip Version 2 via SSL (option &#8216;2s&#8217;) you need to specify the appropriate &#8216;Caster port&#8217; for that. It is usually port number 443. Clarify &#8216;SSL&#8217; options offered in panel &#8216;Network&#8217;.</li>
    4529 <li>Option &#8216;R&#8217; or &#8216;U&#8217; may be selected if latency is more important than completeness for your application. Note that the latency reduction is likely to be in the order of 0.5 sec or less. Note further that options &#8216;R&#8217; (RTSP/RTP mode) and &#8216;U&#8217; (UDP mode) are not accepted by proxy servers and a mobile Internet Service Provider may not support it.</li>
    4530 </ul>
    4531 <p>Select option &#8216;1&#8217; if you are not sure whether the broadcaster supports Ntrip Version 2.</p>
    4532 </div>
    4533 <div class="section" id="map-optional">
    4534 <h5>Map - optional<a class="headerlink" href="#map-optional" title="Permalink to this headline">¶</a></h5>
    4535 <p>Button &#8216;Map&#8217; opens a window to show a distribution map of the caster&#8217;s streams <a class="reference internal" href="#fig-40"><span class="std std-numref">(Fig. 42)</span></a>. You may like to zoom in or out using the mouse. Left button: draw a rectangle to zoom, right button: zoom out, middle button: zoom back.</p>
    4536 <div class="figure" id="id69">
    4537 <span id="fig-40"></span><a class="reference internal image-reference" href="_images/fig_40.png"><img alt="_images/fig_40.png" src="_images/fig_40.png" style="width: 808.0px; height: 737.0px;" /></a>
    4538 <p class="caption"><span class="caption-number">Fig. 42 </span><span class="caption-text">Stream distribution map shown by BNC as derived from Ntrip Broadcaster source-table</span></p>
    4539 </div>
    4540 </div>
    4541 </div>
    4542 <div class="section" id="add-stream-coming-from-tcp-ip-port">
    4543 <h4>Add Stream - Coming from TCP/IP Port<a class="headerlink" href="#add-stream-coming-from-tcp-ip-port" title="Permalink to this headline">¶</a></h4>
    4544 <p>Button &#8216;Add Stream&#8217; &gt; &#8216;Coming from TCP/IP Port&#8217; allows to retrieve streams via TCP directly from an IP address without using the Ntrip transport protocol. For that you:</p>
    4545 <ul class="simple">
     4425</p>
     4426
     4427<p>
     4428If Ntrip Version 2 is supported by the broadcaster:
     4429</p>
     4430<ul>
     4431<li>Try using option '2' if your streams are otherwise blocked by a proxy server operated in front of BNC.</li>
     4432<li>When using Ntrip Version 2 via SSL (option '2s') you need to specify the appropriate 'Caster port' for that. It is usually port number 443. Clarify 'SSL' options offered in panel 'Network'.</li>
     4433<li>Option 'R' or 'U' may be selected if latency is more important than completeness for your application. Note that the latency reduction is likely to be in the order of 0.5 sec or less. Note further that options 'R' (RTSP/RTP mode) and 'U' (UDP mode) are not accepted by proxy servers and a mobile Internet Service Provider may not support it.</li>
     4434</ul>
     4435<p>
     4436Select option '1' if you are not sure whether the broadcaster supports Ntrip Version 2.</li>
     4437</p>
     4438
     4439<p><h4>2.19.1.1.6 <a name="castermap">Map - optional</h4></p>
     4440<p>
     4441Button 'Map' opens a window to show a distribution map of the caster's streams. You may like to zoom in or out using the mouse. Left button: draw a rectangle to zoom, right button: zoom out, middle button: zoom back.
     4442</p>
     4443
     4444<p><img src="IMG/screenshot24.png"/></p>
     4445<p><u>Figure 40:</u> Stream distribution map shown by BNC as derived from Ntrip Broadcaster source-table</p>
     4446
     4447<p><h4>2.19.1.2 <a name="streamip">Add Stream - Coming from TCP/IP Port</h4></p>
     4448<p>
     4449Button 'Add Stream' &gt; 'Coming from TCP/IP Port' allows to retrieve streams via TCP directly from an IP address without using the Ntrip transport protocol. For that you:
     4450<ul>
    45464451<li>Enter the IP address of the stream providing host.</li>
    45474452<li>Enter the IP port number of the stream providing host.</li>
    45484453<li>Specify a mountpoint. Recommended is a 4-character station ID. Example: FFMJ</li>
    4549 <li>Specify the stream format. Available options are &#8216;RTCM_2&#8217;, &#8216;RTCM_3&#8217;, &#8216;RTNET&#8217;, and &#8216;ZERO&#8217;.</li>
     4454<li>Specify the stream format. Available options are 'RTCM_2', 'RTCM_3', 'RTNET', and 'ZERO'.</li>
    45504455<li>Enter the approximate latitude of the stream providing rover in degrees. Example: 45.32.</li>
    45514456<li>Enter the approximate longitude of the stream providing rover in degrees. Example: -15.20.</li>
    45524457</ul>
    4553 <p>Streams directly received from a TCP/IP port show up with an &#8216;N&#8217; for &#8216;No Ntrip&#8217; in the &#8216;Streams&#8217; canvas on BNC&#8217;s main window. Latitude and longitude are to be entered just for informal reasons. Note that this option works only if no proxy server is involved in the communication link.</p>
    4554 </div>
    4555 <div class="section" id="add-stream-coming-from-udp-port">
    4556 <h4>Add Stream - Coming from UDP Port<a class="headerlink" href="#add-stream-coming-from-udp-port" title="Permalink to this headline">¶</a></h4>
    4557 <p>Button &#8216;Add Stream&#8217; &gt; &#8216;Coming from UDP Port&#8217; allows to pick up streams arriving directly at one of the local host&#8217;s UDP ports without using the Ntrip transport protocol. For that you:</p>
    4558 <ul class="simple">
     4458</p>
     4459<p>
     4460Streams directly received from a TCP/IP port show up with an 'N' for 'No Ntrip' in the 'Streams' canvas on BNC's main window. Latitude and longitude are to be entered just for informal reasons.
     4461<p>
     4462</p>
     4463Note that this option works only if no proxy server is involved in the communication link.
     4464</p>
     4465
     4466<p><h4>2.19.1.3 <a name="streamudp">Add Stream - Coming from UDP Port</h4></p>
     4467<p>
     4468Button 'Add Stream' &gt; 'Coming from UDP Port' allows to pick up streams arriving directly at one of the local host's UDP ports without using the Ntrip transport protocol. For that you:
     4469<ul>
    45594470<li>Enter the local port number where the UDP stream arrives.</li>
    45604471<li>Specify a mountpoint. Recommended is a 4-character station ID. Example: FFMJ</li>
    4561 <li>Specify the stream format. Available options are &#8216;RTCM_2&#8217;, &#8216;RTCM_3&#8217;, &#8216;RTNET&#8217;, and &#8216;ZERO&#8217;.</li>
     4472<li>Specify the stream format. Available options are 'RTCM_2', 'RTCM_3', 'RTNET', and 'ZERO'.</li>
    45624473<li>Enter the approximate latitude of the stream providing rover in degrees. Example: 45.32.</li>
    45634474<li>Enter the approximate longitude of the stream providing rover in degrees. Example: -15.20.</li>
    45644475</ul>
    4565 <p>Streams directly received at a UDP port show up with a &#8216;UN&#8217; for &#8216;UDP, No Ntrip&#8217; in the &#8216;Streams&#8217; canvas section on BNC&#8217;s main window. Latitude and longitude are to be entered just for informal reasons.</p>
    4566 </div>
    4567 <div class="section" id="add-stream-coming-from-serial-port">
    4568 <h4>Add Stream - Coming from Serial Port<a class="headerlink" href="#add-stream-coming-from-serial-port" title="Permalink to this headline">¶</a></h4>
    4569 <p>Button &#8216;Add Stream&#8217; &gt; &#8216;Coming from Serial Port&#8217; allows to retrieve streams from a GNSS receiver via serial port without using the Ntrip transport protocol. For that you:</p>
    4570 <ul class="simple">
     4476</p>
     4477<p>
     4478Streams directly received at a UDP port show up with a 'UN' for 'UDP, No Ntrip' in the 'Streams' canvas section on BNC's main window. Latitude and longitude are to be entered just for informal reasons.
     4479<p>
     4480
     4481<p><h4>2.19.1.4 <a name="streamser">Add Stream - Coming from Serial Port</h4></p>
     4482<p>
     4483Button 'Add Stream' &gt; 'Coming from Serial Port' allows to retrieve streams from a GNSS receiver via serial port without using the Ntrip transport protocol. For that you:
     4484<ul>
    45714485<li>Specify a mountpoint. Recommended is a 4-character station ID. Example: FFMJ</li>
    4572 <li>Specify the stream format. Available options are &#8216;RTCM_2&#8217;, &#8216;RTCM_3&#8217;, &#8216;RTNET&#8217;, and &#8216;ZERO&#8217;.</li>
     4486<li>Specify the stream format. Available options are 'RTCM_2', 'RTCM_3', 'RTNET', and 'ZERO'.</li>
    45734487<li>Enter the approximate latitude of the stream providing receiver in degrees. Example: 45.32.</li>
    45744488<li>Enter the approximate longitude of the stream providing receiver in degrees. Example: -15.20.</li>
    4575 <li>Enter the serial &#8216;Port name&#8217; selected on your host for communication with the receiver. Valid port names are listed in <a class="reference internal" href="#tab-serial-port-names"><span class="std std-numref">Table 14</span></a>.</li>
    4576 <li>Select a &#8216;Baud rate&#8217; for the serial input. Note that using a high baud rate is recommended.</li>
    4577 <li>Select the number of &#8216;Data bits&#8217; for the serial input. Note that often &#8216;8&#8217; data bits are used.</li>
    4578 <li>Select the &#8216;Parity&#8217; for the serial input. Note that parity is often set to &#8216;NONE&#8217;.</li>
    4579 <li>Select the number of &#8216;Stop bits&#8217; for the serial input. Note that often &#8216;1&#8217; stop bit is used.</li>
    4580 <li>Select a &#8216;Flow control&#8217; for the serial link. Select &#8216;OFF&#8217; if you do not know better.</li>
    4581 </ul>
    4582 <p>When selecting one of the serial communication options listed above, make sure that you pick those configured to the serially connected GNSS receiver. Streams received from a serially connected GNSS receiver show up with an &#8216;S&#8217; (for Serial Port, no Ntrip) in the &#8216;Streams&#8217; canvas section on BNC&#8217;s main window. Latitude and longitude are to be entered just for informal reasons.</p>
    4583 <table border="1" class="docutils" id="id70">
    4584 <span id="tab-serial-port-names"></span><caption><span class="caption-number">Table 14 </span><span class="caption-text">Valid port names in BNC.</span><a class="headerlink" href="#id70" title="Permalink to this table">¶</a></caption>
    4585 <colgroup>
    4586 <col width="37%" />
    4587 <col width="63%" />
    4588 </colgroup>
    4589 <thead valign="bottom">
    4590 <tr class="row-odd"><th class="head"><strong>OS</strong></th>
    4591 <th class="head"><strong>Valid port names</strong></th>
    4592 </tr>
    4593 </thead>
    4594 <tbody valign="top">
    4595 <tr class="row-even"><td>Windows</td>
    4596 <td>COM1, COM2</td>
    4597 </tr>
    4598 <tr class="row-odd"><td>Linux</td>
    4599 <td>/dev/ttyS0, /dev/ttyS1</td>
    4600 </tr>
    4601 <tr class="row-even"><td>FreeBSD</td>
    4602 <td>/dev/ttyd0, /dev/ttyd1</td>
    4603 </tr>
    4604 <tr class="row-odd"><td>Digital Unix</td>
    4605 <td>/dev/tty01, /dev/tty02</td>
    4606 </tr>
    4607 <tr class="row-even"><td>HP-UX</td>
    4608 <td>/dev/tty1p0, /dev/tty2p0</td>
    4609 </tr>
    4610 <tr class="row-odd"><td>SGI/IRIX</td>
    4611 <td>/dev/ttyf1, /dev/ttyf2</td>
    4612 </tr>
    4613 <tr class="row-even"><td>SunOS/Solaris</td>
    4614 <td>/dev/ttya, /dev/ttyb</td>
    4615 </tr>
    4616 </tbody>
    4617 </table>
    4618 <p><a class="reference internal" href="#fig-41"><span class="std std-numref">Fig. 43</span></a> shows a BNC example setup for pulling a stream via serial port on a Windows operating system.</p>
    4619 <div class="figure" id="id71">
    4620 <span id="fig-41"></span><a class="reference internal image-reference" href="_images/fig_41.png"><img alt="_images/fig_41.png" src="_images/fig_41.png" style="width: 408.0px; height: 209.0px;" /></a>
    4621 <p class="caption"><span class="caption-number">Fig. 43 </span><span class="caption-text">BNC configuration for pulling a stream via serial port</span></p>
    4622 </div>
    4623 </div>
    4624 <div class="section" id="map">
    4625 <h4>Map<a class="headerlink" href="#map" title="Permalink to this headline">¶</a></h4>
    4626 <p>Button &#8216;Map&#8217; opens a window to show a distribution map of the streams selected for retrieval as listed under the &#8216;Streams&#8217; canvas. You may like to zoom in or out using the mouse. Left button: draw a rectangle to zoom, right button: zoom out, middle button: zoom back.</p>
    4627 </div>
    4628 <div class="section" id="start-stop">
    4629 <h4>Start/Stop<a class="headerlink" href="#start-stop" title="Permalink to this headline">¶</a></h4>
    4630 <p>Hit &#8216;Start&#8217; to start retrieving, decoding or converting GNSS data streams in real-time. Note that &#8216;Start&#8217; generally forces BNC to begin with fresh RINEX files which might overwrite existing files when necessary unless option &#8216;Append files&#8217; is ticked.</p>
    4631 <p>Hit the &#8216;Stop&#8217; button in order to stop BNC.</p>
    4632 </div>
    4633 <div class="section" id="help-shift-f1">
    4634 <h4>Help? = Shift+F1<a class="headerlink" href="#help-shift-f1" title="Permalink to this headline">¶</a></h4>
    4635 <p>BNC comes with a &#8216;What&#8217;s This&#8217; help system providing information about its functionality and usage. Short descriptions are available for any widget and program option. Focus to the relevant object and press Shift+F1 to request help information. A help text appears immediately; it disappears as soon as the user does something else. The dialogs on some operating systems may provide a &#8216;?&#8217; button that users can click; click the relevant widget to pop up the help text.</p>
    4636 </div>
    4637 </div>
    4638 <div class="section" id="command-line-options">
    4639 <span id="index-46"></span><h3>Command Line Options<a class="headerlink" href="#command-line-options" title="Permalink to this headline">¶</a></h3>
    4640 <p>Command line options are available to run BNC in &#8216;no window&#8217; mode or let it read previously recorded input offline from one or several files for debugging or post processing purposes. It is also possible to introduce a specific configuration filename instead of using the default filename &#8216;BNC.bnc&#8217;. The self-explaining content of the configuration file can easily be edited. In addition to reading processing options from the involved configuration file, BNC can optionally read any configuration option from command line. Running BNC with command line option &#8216;help&#8217;</p>
    4641 <div class="highlight-console"><div class="highlight"><pre><span class="go">bnc --help (MS Windows: bnc.exe --help | more)</span>
    4642 </pre></div>
    4643 </div>
    4644 <p>provides a list of all available command line options.</p>
    4645 <div class="section" id="id21">
    4646 <h4>Version - optional<a class="headerlink" href="#id21" title="Permalink to this headline">¶</a></h4>
    4647 <p>Command line option <code class="docutils literal"><span class="pre">--version</span></code> lets BNC print its version number.</p>
    4648 <div class="highlight-console"><div class="highlight"><pre><span class="go">bnc --version (MS Windows: bnc.exe --version | more)</span>
    4649 </pre></div>
    4650 </div>
    4651 </div>
    4652 <div class="section" id="display-optional">
    4653 <h4>Display - optional<a class="headerlink" href="#display-optional" title="Permalink to this headline">¶</a></h4>
    4654 <p>On systems which support graphics, command line option <code class="docutils literal"><span class="pre">--display</span></code> forces BNC to present the BNC window on the specified display.</p>
    4655 <div class="highlight-console"><div class="highlight"><pre><span class="go">bnc.exe --display localhost:10.0</span>
    4656 </pre></div>
    4657 </div>
    4658 </div>
    4659 <div class="section" id="no-window-mode-optional">
    4660 <h4>No Window Mode - optional<a class="headerlink" href="#no-window-mode-optional" title="Permalink to this headline">¶</a></h4>
    4661 <p>Apart from its regular windows mode, BNC can be started on all systems as a batch job with command line option &#8216;-nw&#8217;. BNC will then run in &#8216;no window&#8217; mode, using processing options from its configuration file on disk. Terminate BNC using Windows Task Manager when running it in &#8216;no window&#8217; mode on Windows systems.</p>
    4662 <div class="highlight-console"><div class="highlight"><pre><span class="go">bnc.exe --nw</span>
    4663 </pre></div>
    4664 </div>
    4665 <p>It is obvious that BNC requires graphics support when started in interactive mode. However, note that graphics support is also required when producing plots in batch mode (option <code class="docutils literal"><span class="pre">-nw</span></code>). Windows and Mac OS X systems always support graphics. For producing plots in batch mode on Linux systems you must make sure that at least a virtual X-Server such as &#8216;Xvfb&#8217; is installed and the <code class="docutils literal"><span class="pre">-display</span></code> option is used. The following is an example shell script to execute BNC in batch mode for producing QC plots from RINEX files. It could be used via <code class="docutils literal"><span class="pre">crontab</span></code>:</p>
    4666 <div class="highlight-none"><div class="highlight"><pre>#!/bin/bash
    4667 # Save string localhost
    4668 echo &quot;localhost&quot; &gt; /home/user/hosts
    4669 
    4670 # Start virtual X-Server, save process ID
    4671 /usr/bin/Xvfb :29 -auth /home/user/hosts -screen 0 1280x1024x8 &amp;
    4672 psID=`echo $!`
    4673 
    4674 # Run BNC application with defined display variable
    4675 /home/user/BNC/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile ons12090.12o --key reqcNavFile brdc2090.12p --key reqcOutLogFile multi.txt --key reqcPlotDir /home/user --display localhost:29 --nw
    4676 
    4677 # BNC done, kill X-server process
    4678 kill $psID
    4679 </pre></div>
    4680 </div>
    4681 </div>
    4682 <div class="section" id="file-mode-optional">
    4683 <h4>File Mode - optional<a class="headerlink" href="#file-mode-optional" title="Permalink to this headline">¶</a></h4>
    4684 <p>Although BNC is primarily a real-time online tool, for debugging purposes it can be run offline to read data from a file previously saved through option &#8216;Raw output file&#8217; (Record &amp; Replay functionality). Enter the following command line option for that</p>
    4685 <div class="highlight-console"><div class="highlight"><pre><span class="go">--file &lt;inputFileName&gt;</span>
    4686 </pre></div>
    4687 </div>
    4688 <p>and specify the full path to an input file containing previously saved data, e.g.</p>
    4689 <div class="highlight-console"><div class="highlight"><pre><span class="go">./bnc --file /home/user/raw.output_110301</span>
    4690 </pre></div>
    4691 </div>
    4692 <p>Note that when running BNC offline, it will use options for file saving, interval, sampling, PPP etc. from its configuration file. Note further that option <code class="docutils literal"><span class="pre">--file</span></code> forces BNC to apply the &#8216;-nw&#8217; option for running in &#8216;no window&#8217; mode.</p>
    4693 </div>
    4694 <div class="section" id="configuration-file-optional">
    4695 <h4>Configuration File - optional<a class="headerlink" href="#configuration-file-optional" title="Permalink to this headline">¶</a></h4>
    4696 <p>The default configuration filename is <code class="docutils literal"><span class="pre">BNC.bnc</span></code>. You may change this name at startup time using command line option <code class="docutils literal"><span class="pre">--conf</span> <span class="pre">&lt;confFileName&gt;</span></code>. This allows running several BNC jobs in parallel on the same host using different sets of configuration options. &#8216;confFileName&#8217; stands either for the full path to a configuration file or just for a filename. If you introduce only a filename, the corresponding file will be saved in the current working directory from where BNC is started, e.g.</p>
    4697 <div class="highlight-console"><div class="highlight"><pre><span class="go">./bnc --conf MyConfig.bnc</span>
    4698 </pre></div>
    4699 </div>
    4700 <p>This leads to a BNC job using configuration file &#8216;MyConfig.bnc&#8217;. The configuration file will be saved in the current working directory.</p>
    4701 </div>
    4702 <div class="section" id="configuration-options-optional">
    4703 <h4>Configuration Options - optional<a class="headerlink" href="#configuration-options-optional" title="Permalink to this headline">¶</a></h4>
    4704 <p>BNC applies options from the configuration file but allows updating every one of them on the command line while the content of the configuration file remains unchanged. Note the following syntax for Command Line Interface (CLI) options:</p>
    4705 <div class="highlight-console"><div class="highlight"><pre><span class="go">--key &lt;keyName&gt; &lt;keyValue&gt;</span>
    4706 </pre></div>
    4707 </div>
    4708 <p>Parameter &lt;keyName&gt; stands for the key name of an option contained in the configuration file and &lt;keyValue&gt; stands for the value you want to assign to it. The following is a syntax example for a complete command line:</p>
    4709 <div class="highlight-console"><div class="highlight"><pre><span class="go">bnc --nw --conf &lt;confFileName&gt; --key &lt;keyName1&gt; &lt;keyValue1&gt; --key &lt;keyName2&gt; &lt;keyValue2&gt; ...</span>
    4710 </pre></div>
    4711 </div>
    4712 <p>Configuration options which are part of the configuration files PPP section must be prefixed by &#8216;PPP/&#8217;. As an example, option &#8216;minObs&#8217; from the PPP section of the BNC configuration file would be specified as &#8216;PPP/minObs&#8217; on a command line.</p>
    4713 <p>Values for configuration options can be introduced via command line exactly as they show up in the configuration file. However, any value containing one or more blank characters must be enclosed by quotation marks when specified on command line.</p>
    4714 <p id="bibtex-bibliography-chapter5-0"><table class="docutils citation" frame="void" id="rupprecht2000a" rules="none">
    4715 <colgroup><col class="label" /><col /></colgroup>
    4716 <tbody valign="top">
    4717 <tr><td class="label">[1]</td><td>W&nbsp;Rupprecht. DGPS-IP. 2000. URL: <a class="reference external" href="http://www.wsrcc.com/wolfgang/gps/dgps-ip.html">http://www.wsrcc.com/wolfgang/gps/dgps-ip.html</a>.</td></tr>
    4718 </tbody>
    4719 </table>
    4720 <table class="docutils citation" frame="void" id="weber2004a" rules="none">
    4721 <colgroup><col class="label" /><col /></colgroup>
    4722 <tbody valign="top">
    4723 <tr><td class="label">[2]</td><td>G&nbsp;Weber and M&nbsp;Honkala. The future is talking Ntrip. Newsletter, Trimble GmbH Raunheim, Germany, 2004.</td></tr>
    4724 </tbody>
    4725 </table>
    4726 <table class="docutils citation" frame="void" id="weber2005a" rules="none">
    4727 <colgroup><col class="label" /><col /></colgroup>
    4728 <tbody valign="top">
    4729 <tr><td class="label">[3]</td><td>G&nbsp;Weber, D&nbsp;Dettmering, and H&nbsp;Gebhard. Networked Transport of RTCM via Internet Protocol (NTRIP). In F&nbsp;Sanso, editor, <em>A Window on the Future, Proceedings of the IAG General Assembly, Sapporo, Japan, 2003</em>, volume 128, 60–64. Springer, 2005.</td></tr>
    4730 </tbody>
    4731 </table>
    4732 <table class="docutils citation" frame="void" id="weber2005b" rules="none">
    4733 <colgroup><col class="label" /><col /></colgroup>
    4734 <tbody valign="top">
    4735 <tr><td class="label">[4]</td><td>G&nbsp;Weber, D&nbsp;Dettmering, H&nbsp;Gebhard, and R&nbsp;Kalafus. Networked Transport of RTCM via Internet Protocol (Ntrip) ... IP-Streaming for Real-Time GNSS Applications. In <em>Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), September 13 - 16, 2005, Long Beach Convention Center, Long Beach, CA, USA</em>. 2005.</td></tr>
    4736 </tbody>
    4737 </table>
    4738 <table class="docutils citation" frame="void" id="rtcm-sc104-2011a" rules="none">
    4739 <colgroup><col class="label" /><col /></colgroup>
    4740 <tbody valign="top">
    4741 <tr><td class="label">[5]</td><td>RTCM-SC104. Amendment 1 to RTCM Standard 10410.1 Networked Transport of RTCM via Internet Protocol (Ntrip) - Version 2.0. RTCM Papter 139-2011-SC104-STD, 2011. <a class="reference external" href="http://dx.doi.org/10.1007/s10291-012-0255-y">doi:10.1007/s10291-012-0255-y</a>.</td></tr>
    4742 </tbody>
    4743 </table>
    4744 <table class="docutils citation" frame="void" id="weber2009a" rules="none">
    4745 <colgroup><col class="label" /><col /></colgroup>
    4746 <tbody valign="top">
    4747 <tr><td class="label">[6]</td><td>G&nbsp;Weber and L&nbsp;Mervart. The BKG Ntrip Client (BNC). In <em>Report on EUREF Symposium 2007 in London</em>, volume 42 of Mitteilungen des Bundesamtes fuer Kartographie und Geodaesie. Frankfurt am Main, 2009.</td></tr>
    4748 </tbody>
    4749 </table>
    4750 <table class="docutils citation" frame="void" id="estey1999a" rules="none">
    4751 <colgroup><col class="label" /><col /></colgroup>
    4752 <tbody valign="top">
    4753 <tr><td class="label"><a class="fn-backref" href="#id3">[7]</a></td><td>L&nbsp;H Estey and C&nbsp;M Meertens. TEQC: The Multi-Purpose Toolkit for GPS/GLONASS Data. <em>GPS Solutions</em>, 3(1):42–49, 1999. <a class="reference external" href="http://dx.doi.org/10.1007/PL00012778">doi:10.1007/PL00012778</a>.</td></tr>
    4754 </tbody>
    4755 </table>
    4756 <table class="docutils citation" frame="void" id="caissy2012a" rules="none">
    4757 <colgroup><col class="label" /><col /></colgroup>
    4758 <tbody valign="top">
    4759 <tr><td class="label"><a class="fn-backref" href="#id9">[8]</a></td><td>M&nbsp;Caissy, L&nbsp;Agrotis, G&nbsp;Weber, M&nbsp;Hernandez-Pajares, and U.&nbsp;Hugentobler. Coming Soon: The International GNSS Real-Time Service. <em>GPS World</em>, 23(6):52–58, 2012.</td></tr>
    4760 </tbody>
    4761 </table>
    4762 <table class="docutils citation" frame="void" id="mervart2008a" rules="none">
    4763 <colgroup><col class="label" /><col /></colgroup>
    4764 <tbody valign="top">
    4765 <tr><td class="label"><a class="fn-backref" href="#id11">[9]</a></td><td>L&nbsp;Mervart, Z&nbsp;Lukes, C&nbsp;Rocken, and T&nbsp;Iwabuchi. Precise Point Positioning With Ambiguity Resolution in Real-Time. In <em>Proceedings of the 21st International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2008), September 16-19, 2008, Savannah International Convention Center, Savannah, GA, USA</em>, 397–405. 2008.</td></tr>
    4766 </tbody>
    4767 </table>
    4768 <table class="docutils citation" frame="void" id="mervart2011a" rules="none">
    4769 <colgroup><col class="label" /><col /></colgroup>
    4770 <tbody valign="top">
    4771 <tr><td class="label"><a class="fn-backref" href="#id12">[10]</a></td><td>L&nbsp;Mervart and G&nbsp;Weber. Real-time Combination of GNSS Orbit and Clock Correction Streams Using a Kalman Filter Approach. In <em>Proceedings of the 24th International Technical Meeting of The Satellite Division of the Institute of Navigation (ION GNSS 2011), September 20 - 23, 2011, Oregon Convention Center, Portland, Oregon, Portland, OR , USA</em>. 2011.</td></tr>
    4772 </tbody>
    4773 </table>
    4774 <table class="docutils citation" frame="void" id="huisman2012a" rules="none">
    4775 <colgroup><col class="label" /><col /></colgroup>
    4776 <tbody valign="top">
    4777 <tr><td class="label"><a class="fn-backref" href="#id13">[11]</a></td><td>L&nbsp;Huisman, P&nbsp;Teunissen, and C&nbsp;Hu. GNSS Precise Point Positioning in Regional Reference Frames Using Real-time Broadcast Corrections. <em>Journal of Applied Geodesy</em>, 6(1):15–23, 2012. <a class="reference external" href="http://dx.doi.org/10.1515/jag-2011-0006">doi:10.1515/jag-2011-0006</a>.</td></tr>
    4778 </tbody>
    4779 </table>
    4780 <table class="docutils citation" frame="void" id="pearson2013a" rules="none">
    4781 <colgroup><col class="label" /><col /></colgroup>
    4782 <tbody valign="top">
    4783 <tr><td class="label"><a class="fn-backref" href="#id14">[12]</a></td><td>C&nbsp;Pearson and R&nbsp;Snay. Introducing HTDP 3.1 to transform coordinates across time and spatial reference frames. <em>GPS Solutions</em>, 17(1):1–15, 2013.</td></tr>
    4784 </tbody>
    4785 </table>
    4786 <table class="docutils citation" frame="void" id="dawson2010a" rules="none">
    4787 <colgroup><col class="label" /><col /></colgroup>
    4788 <tbody valign="top">
    4789 <tr><td class="label"><a class="fn-backref" href="#id15">[13]</a></td><td>J&nbsp;Dawson and A.&nbsp;Woods. ITRF to GDA94 coordinate transformations. <em>Journal of Applied Geodesy</em>, 4:189–199, 2010. <a class="reference external" href="http://dx.doi.org/10.1515/JAG.2010.019">doi:10.1515/JAG.2010.019</a>.</td></tr>
    4790 </tbody>
    4791 </table>
    4792 <table class="docutils citation" frame="void" id="ibge-dgc2016a" rules="none">
    4793 <colgroup><col class="label" /><col /></colgroup>
    4794 <tbody valign="top">
    4795 <tr><td class="label"><a class="fn-backref" href="#id16">[14]</a></td><td>IBGE/DGC, Diretoria de Geociencias Brazil, CGED-Coordenacao de Geodesia. Transformation ITRF2008 to SIRGAS2000. personal communication from CGED-Coordenacao de Geodesia, 2016.</td></tr>
    4796 </tbody>
    4797 </table>
    4798 <table class="docutils citation" frame="void" id="acuha2016a" rules="none">
    4799 <colgroup><col class="label" /><col /></colgroup>
    4800 <tbody valign="top">
    4801 <tr><td class="label"><a class="fn-backref" href="#id17">[15]</a></td><td>G&nbsp;Acuha. Transformation parameters ITRF2005 to SIRGAS95. personal communication. Laboratorio de Geodesia Fisica y Satelital at Zulia University (LGFS-LUZ).</td></tr>
    4802 </tbody>
    4803 </table>
    4804 <table class="docutils citation" frame="void" id="sirgas2009a" rules="none">
    4805 <colgroup><col class="label" /><col /></colgroup>
    4806 <tbody valign="top">
    4807 <tr><td class="label"><a class="fn-backref" href="#id18">[16]</a></td><td>Sirgas. Terrestrial Reference Frames. 2009. URL: <a class="reference external" href="http://tai.bipm.org/iers/convupdt/convupdt_c4.html">http://tai.bipm.org/iers/convupdt/convupdt_c4.html</a>.</td></tr>
    4808 </tbody>
    4809 </table>
    4810 <table class="docutils citation" frame="void" id="franke2008a" rules="none">
    4811 <colgroup><col class="label" /><col /></colgroup>
    4812 <tbody valign="top">
    4813 <tr><td class="label"><a class="fn-backref" href="#id19">[17]</a></td><td>P&nbsp;Franke. Referenzkoordinaten für SAPOS, Empfehlungen der Projektgruppe SAPOS-Koordinatenmonitoring 2008. personal communication, 2008.</td></tr>
    4814 </tbody>
    4815 </table>
    4816 <table class="docutils citation" frame="void" id="weber2007a" rules="none">
    4817 <colgroup><col class="label" /><col /></colgroup>
    4818 <tbody valign="top">
    4819 <tr><td class="label">[18]</td><td>G&nbsp;Weber, L&nbsp;Mervart, Z&nbsp;Lukes, C&nbsp;Rocken, and J&nbsp;Dousa. Real-time Clock and Orbit Corrections for Improved Point Positioning via NTRIP. In <em>Proceedings of the 20th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2007), September 25 - 28, 2007, Fort Worth Convention Center, Fort Worth, TX, USA</em>. 2007.</td></tr>
    4820 </tbody>
    4821 </table>
    4822 </p>
    4823 </div>
    4824 </div>
    4825 </div>
    4826 <span id="document-annex"></span><span class="target" id="index-0"></span><div class="section" id="annex">
    4827 <h2>Annex<a class="headerlink" href="#annex" title="Permalink to this headline">¶</a></h2>
    4828 <div class="section" id="revision-history">
    4829 <span id="index-1"></span><h3>Revision History<a class="headerlink" href="#revision-history" title="Permalink to this headline">¶</a></h3>
    4830 <table border="1" class="docutils">
    4831 <colgroup>
    4832 <col width="5%" />
    4833 <col width="8%" />
    4834 <col width="87%" />
    4835 </colgroup>
    4836 <tbody valign="top">
    4837 <tr class="row-odd"><td>Dec 2006</td>
    4838 <td>Version 1.0b</td>
     4489<li>Enter the serial 'Port name' selected on your host for communication with the receiver. Valid port names are
     4490<pre>
     4491Windows:       COM1, COM2
     4492Linux:         /dev/ttyS0, /dev/ttyS1
     4493FreeBSD:       /dev/ttyd0, /dev/ttyd1
     4494Digital Unix:  /dev/tty01, /dev/tty02
     4495HP-UX:         /dev/tty1p0, /dev/tty2p0
     4496SGI/IRIX:      /dev/ttyf1, /dev/ttyf2
     4497SunOS/Solaris: /dev/ttya, /dev/ttyb
     4498</pre>
     4499</li>
     4500<li>Select a 'Baud rate' for the serial input. Note that using a high baud rate is recommended.</li>
     4501<li>Select the number of 'Data bits' for the serial input. Note that often '8' data bits are used.</li>
     4502<li>Select the 'Parity' for the serial input. Note that parity is often set to 'NONE'.</li>
     4503<li>Select the number of 'Stop bits' for the serial input. Note that often '1' stop bit is used.</li>
     4504<li>Select a 'Flow control' for the serial link. Select 'OFF' if you do not know better.</li>
     4505</ul>
     4506</p>
     4507<p>
     4508When selecting one of the serial communication options listed above, make sure that you pick those configured to the serially connected GNSS receiver.
     4509</p>
     4510
     4511<p>
     4512Streams received from a serially connected GNSS receiver show up with an 'S' (for <u>S</u>erial Port, no Ntrip) in the 'Streams' canvas section on BNC's main window. Latitude and longitude are to be entered just for informal reasons.
     4513<p>
     4514
     4515<p>
     4516The following figure shows a BNC example setup for pulling a stream via serial port on a Windows operating system.
     4517</p>
     4518<p><img src="IMG/screenshot15.png"/></p>
     4519<p><u>Figure 41:</u> BNC configuration for pulling a stream via serial port</p>
     4520
     4521<p><h4>2.19.2 <a name="streamsdelete">Delete Stream</h4></p>
     4522<p>
     4523Button 'Delete Stream' allows you to delete streams previously selected for retrieval as listed under the 'Streams' canvas on BNC's main window.
     4524</p>
     4525
     4526<p><h4>2.19.3 <a name="streamsmap">Map</h4></p>
     4527<p>
     4528Button 'Map' opens a window to show a distribution map of the streams selected for retrieval as listed under the 'Streams' canvas. You may like to zoom in or out using the mouse. Left button: draw a rectangle to zoom, right button: zoom out, middle button: zoom back.
     4529</p>
     4530
     4531<p><h4>2.19.4 <a name="start">Start</h4></p>
     4532<p>
     4533Hit 'Start' to start retrieving, decoding or converting GNSS data streams in real-time. Note that 'Start' generally forces BNC to begin with fresh RINEX files which might overwrite existing files when necessary unless option 'Append files' is ticked.
     4534</p>
     4535
     4536<p><h4>2.19.5 <a name="stop">Stop</h4></p>
     4537<p>
     4538Hit the 'Stop' button in order to stop BNC.
     4539</p>
     4540
     4541<p><h4>2.19.6 <a name="contexthelp">Help? = Shift+F1</h4></p>
     4542<p>
     4543BNC comes with a <i>What's This</i> help system providing information about its functionality and usage. Short descriptions are available for any widget and program option. Focus to the relevant object and press Shift+F1 to request help information. A help text appears immediately; it disappears as soon as the user does something else. The dialogs on some operating systems may provide a '?' button that users can click; click the relevant widget to pop up the help text.
     4544</p>
     4545
     4546<p><h4>2.20 <a name="cmd">Command Line Options</h4></p>
     4547<p>
     4548Command line options are available to run BNC in 'no window' mode or let it read previously recorded input offline from one or several files for debugging or post processing purposes. It is also possible to introduce a specific configuration filename instead of using the default filename 'BNC.bnc'. The self-explaining content of the configuration file can easily be edited.
     4549</p>
     4550<p>
     4551In addition to reading processing options from the involved configuration file, BNC can optionally read any configuration option from command line. Running BNC with command line option 'help'
     4552</p>
     4553<p>
     4554Example:<br><br>
     4555&nbsp; &nbsp; &nbsp; bnc --help (MS Windows: bnc.exe --help | more)
     4556</p>
     4557<p>
     4558provides a list of all available command line options.
     4559</p>
     4560
     4561<p><h4>2.20.1 <a name="cmdVersion">Version - optional</h4></p>
     4562<p>
     4563Command line option '--version' lets BNC print its version number.
     4564</p>
     4565<p>
     4566Example:<br><br>
     4567&nbsp; &nbsp; &nbsp; bnc --version (MS Windows: bnc.exe --version | more)
     4568</p>
     4569
     4570<p><h4>2.20.2 <a name="cmdDisplay">Display - optional</h4></p>
     4571<p>
     4572On systems which support graphics, command line option '--display' forces BNC to present the BNC window on the specified display.
     4573</p>
     4574<p>
     4575Example:<br><br>
     4576&nbsp; &nbsp; &nbsp; bnc.exe --display localhost:10.0
     4577</p>
     4578
     4579<p><h4>2.20.3 <a name="nw">No Window Mode - optional</h4></p>
     4580<p>
     4581Apart from its regular windows mode, BNC can be started on all systems as a batch job with command line option '-nw'. BNC will then run in 'no window' mode, using processing options from its configuration file on disk. Terminate BNC using Windows Task Manager when running it in 'no window' mode on Windows systems.
     4582</p>
     4583<p>
     4584Example:<br><br>
     4585&nbsp; &nbsp; &nbsp; bnc.exe --nw
     4586</p>
     4587<p>
     4588It is obvious that BNC requires graphics support when started in interactive
     4589mode. However, note that graphics support is also required when producing plots in
     4590batch mode (option -nw). Windows and Mac OS X systems always support graphics. For
     4591producing plots in batch mode on Linux systems you must make sure that at
     4592least a virtual X-Server such as 'Xvfb' is installed and the '-display' option
     4593is used. The following is an example shell script to execute BNC in batch mode
     4594for producing QC plots from RINEX files. It could be used via 'crontab':
     4595</p>
     4596<pre>
     4597   #!/bin/bash
     4598
     4599   # Save string localhost
     4600   echo "localhost" > /home/user/hosts
     4601
     4602   # Start virtual X-Server, save process ID
     4603   /usr/bin/Xvfb :29 -auth /home/user/hosts -screen 0 1280x1024x8 &
     4604   psID=`echo $!`
     4605
     4606   # Run BNC application with defined display variable
     4607   /home/user/BNC/bnc --conf /dev/null --key reqcAction Analyze --key reqcObsFile ons12090.12o --key reqcNavFile brdc2090.12p --key reqcOutLogFile multi.txt --key reqcPlotDir /home/user --display localhost:29 --nw
     4608
     4609   # BNC done, kill X-server process
     4610   kill $psID
     4611</pre>
     4612
     4613<p><h4>2.20.4 <a name="post">File Mode - optional</h4></p>
     4614<p>
     4615Although BNC is primarily a real-time online tool, for debugging purposes it can be run offline to read data from a file previously saved through option 'Raw output file' (Record &amp; Replay functionality). Enter the following command line option for that
     4616</p>
     4617<p>
     4618&nbsp; &nbsp; &nbsp; --file &lt;<u>inputFileName</u>&gt;
     4619</p>
     4620
     4621and specify the full path to an input file containing previously saved data. Example:<br><br>
     4622&nbsp; &nbsp; &nbsp; ./bnc --file /home/user/raw.output_110301
     4623</p>
     4624<p>
     4625Note that when running BNC offline, it will use options for file saving, interval, sampling, PPP etc. from its configuration file.
     4626</p>
     4627<p>Note further that option '--file' forces BNC to apply the '-nw' option for running in 'no window' mode.
     4628</p>
     4629
     4630<p><h4>2.20.5 <a name="conffile">Configuration File - optional</h4></p>
     4631The default configuration filename is 'BNC.bnc'. You may change this name at startup time using command line option '--conf &lt;<u>confFileName</u>&gt;'. This allows running several BNC jobs in parallel on the same host using different sets of configuration options. <u>confFileName</u> stands either for the full path to a configuration file or just for a filename. If you introduce only a filename, the corresponding file will be saved in the current working directory from where BNC is started.
     4632</p>
     4633<p>
     4634Example:<br><br>
     4635&nbsp; &nbsp; &nbsp; ./bnc --conf MyConfig.bnc
     4636</p>
     4637<p>
     4638This leads to a BNC job using configuration file 'MyConfig.bnc'. The configuration file will be saved in the current working directory.
     4639</p>
     4640
     4641<p><h4>2.20.6 <a name="confopt">Configuration Options - optional</h4></p>
     4642<p>
     4643BNC applies options from the configuration file but allows updating every one of them on the command line while the content of the configuration file remains unchanged. Note the following syntax for Command Line Interface (CLI) options:
     4644</p>
     4645<p>
     4646&nbsp; &nbsp; &nbsp; --key &lt;keyName&gt; &lt;keyValue&gt;
     4647</p>
     4648<p>
     4649Parameter &lt;keyName&gt; stands for the key name of an option contained in the configuration file and &lt;keyValue&gt; stands for the value you want to assign to it. The following is a syntax example for a complete command line:
     4650</p>
     4651<p>
     4652&nbsp; &nbsp; &nbsp; bnc --nw --conf &lt;confFileName&gt --key &lt;keyName1&gt; &lt;keyValue1&gt; --key &lt;keyName2&gt; &lt;keyValue2&gt; ...
     4653</p>
     4654<p>
     4655Configuration options which are part of the configuration files PPP section must be prefixed by 'PPP/'. As an example, option 'minObs' from the PPP section of the BNC configuration file would be specified as 'PPP/minObs' on a command line.
     4656</p>
     4657<p>
     4658Values for configuration options can be introduced via command line exactly as they show up in the configuration file. However, any value containing one or more blank characters must be enclosed by quotation marks when specified on command line.
     4659</p>
     4660
     4661<p><h3>3. <a name="annex">Annex</h3></p>
     4662
     4663<p><h4>3.1 <a name=history>Revision History</h3></p>
     4664<table>
     4665<tr></tr>
     4666
     4667<tr>
     4668<td>Dec 2006 &nbsp;</td><td>Version 1.0b &nbsp;</td>
    48394669<td>[Add] First Beta Binaries published based on Qt 4.2.3.</td>
    48404670</tr>
    4841 <tr class="row-even"><td>Jan 2007</td>
    4842 <td>Version 1.1b</td>
    4843 <td>[Add] Observables C2, S1, and S2</td>
     4671
     4672<tr>
     4673<td>Jan 2007 &nbsp;</td><td>Version 1.1b &nbsp;</td>
     4674<td>[Add] Observables C2, S1, and S2<br>[Add] Virtual reference station access<br>[Bug] RTCM2 decoder time tag fixed<br>[Mod] Small letters for public RINEX skeleton files<br>[Add] Online help through Shift+F1</td>
    48444675</tr>
    4845 <tr class="row-odd"><td></td>
    4846 <td>&nbsp;</td>
    4847 <td>[Add] Virtual reference station access</td>
     4676
     4677<tr>
     4678<td>Apr 2007 &nbsp;</td><td>Version 1.2b &nbsp;</td>
     4679<td>[Bug] Output only through IP port<br>[Bug] Method 'reconnecting' now thread-save<br> [Add] ZERO decoder added<br> [Mod] Download public RINEX skeletons once per day<br> [Mod] Upgrade to Qt Version 4.2.3<br> [Mod] Replace 'system' call for RINEX script by 'QProcess'<br> [Add] HTTP Host directive for skeleton file download<br> [Add] Percent encoding for user IDs and passwords<br> [Bug] Exit execution of calling thread for RTCM3 streams<br> [Bug] Signal-slot mechanism for threads</td>
    48484680</tr>
    4849 <tr class="row-even"><td></td>
    4850 <td>&nbsp;</td>
    4851 <td>[Bug] RTCM2 decoder time tag fixed</td>
    4852 </tr>
    4853 <tr class="row-odd"><td></td>
    4854 <td>&nbsp;</td>
    4855 <td>[Mod] Small letters for public RINEX skeleton files</td>
    4856 </tr>
    4857 <tr class="row-even"><td></td>
    4858 <td>&nbsp;</td>
    4859 <td>[Add] Online help through Shift+F1</td>
    4860 </tr>
    4861 <tr class="row-odd"><td>Apr 2007</td>
    4862 <td>Version 1.2b</td>
    4863 <td>[Bug] Output only through IP port</td>
    4864 </tr>
    4865 <tr class="row-even"><td></td>
    4866 <td>&nbsp;</td>
    4867 <td>[Bug] Method &#8216;reconnecting&#8217; now thread-save</td>
    4868 </tr>
    4869 <tr class="row-odd"><td></td>
    4870 <td>&nbsp;</td>
    4871 <td>[Add] ZERO decoder added</td>
    4872 </tr>
    4873 <tr class="row-even"><td></td>
    4874 <td>&nbsp;</td>
    4875 <td>[Mod] Download public RINEX skeletons once per day</td>
    4876 </tr>
    4877 <tr class="row-odd"><td></td>
    4878 <td>&nbsp;</td>
    4879 <td>[Mod] Upgrade to Qt Version 4.2.3</td>
    4880 </tr>
    4881 <tr class="row-even"><td></td>
    4882 <td>&nbsp;</td>
    4883 <td>[Mod] Replace &#8216;system&#8217; call for RINEX script by &#8216;QProcess&#8217;</td>
    4884 </tr>
    4885 <tr class="row-odd"><td></td>
    4886 <td>&nbsp;</td>
    4887 <td>[Add] HTTP Host directive for skeleton file download</td>
    4888 </tr>
    4889 <tr class="row-even"><td></td>
    4890 <td>&nbsp;</td>
    4891 <td>[Add] Percent encoding for user IDs and passwords</td>
    4892 </tr>
    4893 <tr class="row-odd"><td></td>
    4894 <td>&nbsp;</td>
    4895 <td>[Bug] Exit execution of calling thread for RTCM3 streams</td>
    4896 </tr>
    4897 <tr class="row-even"><td></td>
    4898 <td>&nbsp;</td>
    4899 <td>[Bug] Signal-slot mechanism for threads</td>
    4900 </tr>
    4901 <tr class="row-odd"><td>May 2007</td>
    4902 <td>Version 1.3</td>
     4681
     4682<tr>
     4683<td>May 2007 &nbsp;</td><td>Version 1.3 &nbsp;</td>
    49034684<td>[Add] Source code published.</td>
    49044685</tr>
    4905 <tr class="row-even"><td>Jul 2007</td>
    4906 <td>Version 1.4</td>
    4907 <td>[Bug] Skip messages from proxy server</td>
     4686
     4687<tr>
     4688<td>Jul 2007 &nbsp;</td><td>Version 1.4 &nbsp;</td>
     4689<td>[Bug] Skip messages from proxy server<br> [Bug] Call RINEX script through 'nohup'</td>
    49084690</tr>
    4909 <tr class="row-odd"><td></td>
    4910 <td>&nbsp;</td>
    4911 <td>[Bug] Call RINEX script through &#8216;nohup&#8217;</td>
     4691
     4692<tr>
     4693<td>Apr 2008 &nbsp;</td><td>Version 1.5 &nbsp;</td>
     4694<td>[Add] Handle ephemeris from RTCM Version 3 streams<br> [Add] Upgrade to Qt Version 4.3.2<br> [Add] Optional RINEX v3 output<br> [Add] SBAS support<br> [Bug] RINEX skeleton download following stream outage<br> [Add] Handle ephemeris from RTIGS streams<br> [Add] Monitor stream failure/recovery and latency<br> [Mod] Redesign of main window<br> [Bug] Freezing of About window on Mac OS X<br> [Bug] Fixed problem with PRN 32 in RTCM v2 decoder<br> [Bug] Fix for Trimble 4000SSI receivers in RTCM v2 decoder<br> [Mod] Major revision of input buffer in RTCM v2 decoder</td>
    49124695</tr>
    4913 <tr class="row-even"><td>Apr 2008</td>
    4914 <td>Version 1.5</td>
    4915 <td>[Add] Handle ephemeris from RTCM Version 3 streams</td>
     4696
     4697<tr>
     4698<td>Dec 2008 &nbsp;</td><td>Version 1.6 &nbsp;</td>
     4699<td>[Mod] Fill blank columns in RINEX v3 with 0.000<br> [Add] RTCM v3 decoder for orbit and clock corrections<br>[Add] Check RTCM v3 streams for incoming message types<br> [Add] Decode RTCM v2 message types 3, 20, 21, and 22<br> [Add] Loss of lock and lock time indicator<br> [Bug] Rounding error in RTCM v3 decoder concerning GLONASS height<br> [Mod] Accept GLONASS in RTCM v3 when transmitted first<br> [Add] Leap second 1 January 2009<br> [Add] Offline mode, read data from file<br> [Add] Output antenna descriptor, coordinates and eccentricities from RTCM v3<br> [Add] Reconfiguration on-the-fly<br> [Mod] Binary output of synchronized observations<br> [Add] Binary output of unsynchronized observations<br> [Bug] Fixed problem with joined RTCM v3 blocks</td>
    49164700</tr>
    4917 <tr class="row-odd"><td></td>
    4918 <td>&nbsp;</td>
    4919 <td>[Add] Upgrade to Qt Version 4.3.2</td>
    4920 </tr>
    4921 <tr class="row-even"><td></td>
    4922 <td>&nbsp;</td>
    4923 <td>[Add] Optional RINEX v3 output</td>
    4924 </tr>
    4925 <tr class="row-odd"><td></td>
    4926 <td>&nbsp;</td>
    4927 <td>[Add] SBAS support</td>
    4928 </tr>
    4929 <tr class="row-even"><td></td>
    4930 <td>&nbsp;</td>
    4931 <td>[Bug] RINEX skeleton download following stream outage</td>
    4932 </tr>
    4933 <tr class="row-odd"><td></td>
    4934 <td>&nbsp;</td>
    4935 <td>[Add] Handle ephemeris from RTIGS streams</td>
    4936 </tr>
    4937 <tr class="row-even"><td></td>
    4938 <td>&nbsp;</td>
    4939 <td>[Add] Monitor stream failure/recovery and latency</td>
    4940 </tr>
    4941 <tr class="row-odd"><td></td>
    4942 <td>&nbsp;</td>
    4943 <td>[Mod] Redesign of main window</td>
    4944 </tr>
    4945 <tr class="row-even"><td></td>
    4946 <td>&nbsp;</td>
    4947 <td>[Bug] Freezing of About window on Mac OS X</td>
    4948 </tr>
    4949 <tr class="row-odd"><td></td>
    4950 <td>&nbsp;</td>
    4951 <td>[Bug] Fixed problem with PRN 32 in RTCM v2 decoder</td>
    4952 </tr>
    4953 <tr class="row-even"><td></td>
    4954 <td>&nbsp;</td>
    4955 <td>[Bug] Fix for Trimble 4000SSI receivers in RTCM v2 decoder</td>
    4956 </tr>
    4957 <tr class="row-odd"><td></td>
    4958 <td>&nbsp;</td>
    4959 <td>[Mod] Major revision of input buffer in RTCM v2 decoder</td>
    4960 </tr>
    4961 <tr class="row-even"><td>Dec 2008</td>
    4962 <td>Version 1.6</td>
    4963 <td>[Mod] Fill blank columns in RINEX v3 with 0.000</td>
    4964 </tr>
    4965 <tr class="row-odd"><td></td>
    4966 <td>&nbsp;</td>
    4967 <td>[Add] RTCM v3 decoder for orbit and clock corrections</td>
    4968 </tr>
    4969 <tr class="row-even"><td></td>
    4970 <td>&nbsp;</td>
    4971 <td>[Add] Check RTCM v3 streams for incoming message types</td>
    4972 </tr>
    4973 <tr class="row-odd"><td></td>
    4974 <td>&nbsp;</td>
    4975 <td>[Add] Decode RTCM v2 message types 3, 20, 21, and 22</td>
    4976 </tr>
    4977 <tr class="row-even"><td></td>
    4978 <td>&nbsp;</td>
    4979 <td>[Add] Loss of lock and lock time indicator</td>
    4980 </tr>
    4981 <tr class="row-odd"><td></td>
    4982 <td>&nbsp;</td>
    4983 <td>[Bug] Rounding error in RTCM v3 decoder concerning GLONASS height</td>
    4984 </tr>
    4985 <tr class="row-even"><td></td>
    4986 <td>&nbsp;</td>
    4987 <td>[Mod] Accept GLONASS in RTCM v3 when transmitted first</td>
    4988 </tr>
    4989 <tr class="row-odd"><td></td>
    4990 <td>&nbsp;</td>
    4991 <td>[Add] Leap second 1 January 2009</td>
    4992 </tr>
    4993 <tr class="row-even"><td></td>
    4994 <td>&nbsp;</td>
    4995 <td>[Add] Offline mode, read data from file</td>
    4996 </tr>
    4997 <tr class="row-odd"><td></td>
    4998 <td>&nbsp;</td>
    4999 <td>[Add] Output antenna descriptor, coordinates and eccentricities from RTCM v3</td>
    5000 </tr>
    5001 <tr class="row-even"><td></td>
    5002 <td>&nbsp;</td>
    5003 <td>[Add] Reconfiguration on-the-fly</td>
    5004 </tr>
    5005 <tr class="row-odd"><td></td>
    5006 <td>&nbsp;</td>
    5007 <td>[Mod] Binary output of synchronized observations</td>
    5008 </tr>
    5009 <tr class="row-even"><td></td>
    5010 <td>&nbsp;</td>
    5011 <td>[Add] Binary output of unsynchronized observations</td>
    5012 </tr>
    5013 <tr class="row-odd"><td></td>
    5014 <td>&nbsp;</td>
    5015 <td>[Bug] Fixed problem with joined RTCM v3 blocks</td>
    5016 </tr>
    5017 <tr class="row-even"><td>Dec 2008</td>
    5018 <td>Version 1.6.1</td>
     4701
     4702<tr>
     4703<td>Dec 2008 &nbsp;</td><td>Version 1.6.1 &nbsp;</td>
    50194704<td>[Mod] HTTP GET when no proxy in front</td>
    50204705</tr>
    5021 <tr class="row-odd"><td>Nov 2009</td>
    5022 <td>Version 1.7</td>
    5023 <td>[Bug] RINEX Navigation file format</td>
     4706
     4707<tr>
     4708<td>Nov 2009 &nbsp;</td><td>Version 1.7 &nbsp;</td>
     4709<td>[Bug] RINEX Navigation file format<br> [Add] Upgrade to Qt Version 4.5.2<br> [Add] Support of Ntrip v2<br> [Add] Rover support via serial port<br> [Add] Show broadcaster table from www.rtcm-ntrip.org<br> [Add] Enable/disable panel widgets<br> [Add] User defined configuration filename<br> [Mod] Switch to configuration files in ini-Format<br> [Add] Daily logfile rotation<br> [Add] Read from TCP/IP port, by-pass Ntrip transport protocol<br> [Add] Save NMEA sentences coming from rover<br> [Add] Auto start<br> [Add] Drag and drop ini files<br> [Add] Read from serial port, by-pass Ntrip transport protocol<br> [Mod] Update of SSR messages following RTCM 091-2009-SC104-542<br> [Add] Read from UPD port, by-pass Ntrip transport protocol<br> [Mod] Output format of Broadcast Corrections<br> [Add] Throughput plot<br> [Add] Latency plot</td>
    50244710</tr>
    5025 <tr class="row-even"><td></td>
    5026 <td>&nbsp;</td>
    5027 <td>[Add] Upgrade to Qt Version 4.5.2</td>
    5028 </tr>
    5029 <tr class="row-odd"><td></td>
    5030 <td>&nbsp;</td>
    5031 <td>[Add] Support of Ntrip v2</td>
    5032 </tr>
    5033 <tr class="row-even"><td></td>
    5034 <td>&nbsp;</td>
    5035 <td>[Add] Rover support via serial port</td>
    5036 </tr>
    5037 <tr class="row-odd"><td></td>
    5038 <td>&nbsp;</td>
    5039 <td>[Add] Show broadcaster table from www.rtcm-ntrip.org</td>
    5040 </tr>
    5041 <tr class="row-even"><td></td>
    5042 <td>&nbsp;</td>
    5043 <td>[Add] Enable/disable panel widgets</td>
    5044 </tr>
    5045 <tr class="row-odd"><td></td>
    5046 <td>&nbsp;</td>
    5047 <td>[Add] User defined configuration filename</td>
    5048 </tr>
    5049 <tr class="row-even"><td></td>
    5050 <td>&nbsp;</td>
    5051 <td>[Mod] Switch to configuration files in ini-Format</td>
    5052 </tr>
    5053 <tr class="row-odd"><td></td>
    5054 <td>&nbsp;</td>
    5055 <td>[Add] Daily logfile rotation</td>
    5056 </tr>
    5057 <tr class="row-even"><td></td>
    5058 <td>&nbsp;</td>
    5059 <td>[Add] Read from TCP/IP port, by-pass Ntrip transport protocol</td>
    5060 </tr>
    5061 <tr class="row-odd"><td></td>
    5062 <td>&nbsp;</td>
    5063 <td>[Add] Save NMEA sentences coming from rover</td>
    5064 </tr>
    5065 <tr class="row-even"><td></td>
    5066 <td>&nbsp;</td>
    5067 <td>[Add] Auto start</td>
    5068 </tr>
    5069 <tr class="row-odd"><td></td>
    5070 <td>&nbsp;</td>
    5071 <td>[Add] Drag and drop ini files</td>
    5072 </tr>
    5073 <tr class="row-even"><td></td>
    5074 <td>&nbsp;</td>
    5075 <td>[Add] Read from serial port, by-pass Ntrip transport protocol</td>
    5076 </tr>
    5077 <tr class="row-odd"><td></td>
    5078 <td>&nbsp;</td>
    5079 <td>[Mod] Update of SSR messages following RTCM 091-2009-SC104-542</td>
    5080 </tr>
    5081 <tr class="row-even"><td></td>
    5082 <td>&nbsp;</td>
    5083 <td>[Add] Read from UPD port, by-pass Ntrip transport protocol</td>
    5084 </tr>
    5085 <tr class="row-odd"><td></td>
    5086 <td>&nbsp;</td>
    5087 <td>[Mod] Output format of Broadcast Corrections</td>
    5088 </tr>
    5089 <tr class="row-even"><td></td>
    5090 <td>&nbsp;</td>
    5091 <td>[Add] Throughput plot</td>
    5092 </tr>
    5093 <tr class="row-odd"><td></td>
    5094 <td>&nbsp;</td>
    5095 <td>[Add] Latency plot</td>
    5096 </tr>
    5097 <tr class="row-even"><td>Nov 2009</td>
    5098 <td>Version 1.8</td>
     4711
     4712<tr>
     4713<td>Nov 2009 &nbsp;</td><td>Version 1.8 &nbsp;</td>
    50994714<td>[Mod] On-the-fly reconfiguration of latency and throughput plots</td>
    51004715</tr>
    5101 <tr class="row-odd"><td>Feb 2010</td>
    5102 <td>Version 2.0</td>
    5103 <td>[Mod] Change sign of Broadcast Corrections</td>
     4716
     4717<tr>
     4718<td>Feb 2010 &nbsp;</td><td>Version 2.0 &nbsp;</td>
     4719<td>[Mod] Change sign of Broadcast Corrections<br> [Add] Real-time PPP option</td>
    51044720</tr>
    5105 <tr class="row-even"><td></td>
    5106 <td>&nbsp;</td>
    5107 <td>[Add] Real-time PPP option</td>
     4721
     4722<tr>
     4723<td>Jun 2010 &nbsp;</td><td>Version 2.1 &nbsp;</td>
     4724<td>[Bug] SSR GLONASS message generation<br> [Add] PPP in post processing mode<br> [Mod] Update of SSR messages following draft dated 2010-04-12<br> [Mod] Generating error message when observation epoch is wrong</td>
    51084725</tr>
    5109 <tr class="row-odd"><td>Jun 2010</td>
    5110 <td>Version 2.1</td>
    5111 <td>[Bug] SSR GLONASS message generation</td>
    5112 </tr>
    5113 <tr class="row-even"><td></td>
    5114 <td>&nbsp;</td>
    5115 <td>[Add] PPP in post processing mode</td>
    5116 </tr>
    5117 <tr class="row-odd"><td></td>
    5118 <td>&nbsp;</td>
    5119 <td>[Mod] Update of SSR messages following draft dated 2010-04-12</td>
    5120 </tr>
    5121 <tr class="row-even"><td></td>
    5122 <td>&nbsp;</td>
    5123 <td>[Mod] Generating error message when observation epoch is wrong</td>
    5124 </tr>
    5125 <tr class="row-odd"><td>Jul 2010</td>
    5126 <td>Version 2.2</td>
     4726
     4727<tr>
     4728<td>Jul 2010 &nbsp;</td><td>Version 2.2 &nbsp;</td>
    51274729<td>[Bug] GLONASS ephemeris time</td>
    51284730</tr>
    5129 <tr class="row-even"><td>Aug 2010</td>
    5130 <td>Version 2.3</td>
    5131 <td>[Mod] Internal format for saving raw streams</td>
     4731
     4732<tr>
     4733<td>Aug 2010 &nbsp;</td><td>Version 2.3 &nbsp;</td>
     4734<td>[Mod] Internal format for saving raw streams<br> [Bug] Outlier detection in GLONASS ambiguity resolution<br> [Mod] Format of PPP logs in logfile<br> [Bug] Complete acceleration terms for GLONASS ephemeris<br> [Bug] Handling ephemeris IOD's in PPP mode</td>
    51324735</tr>
    5133 <tr class="row-odd"><td></td>
    5134 <td>&nbsp;</td>
    5135 <td>[Bug] Outlier detection in GLONASS ambiguity resolution</td>
     4736
     4737<tr>
     4738<td>Dec 2010 &nbsp;</td><td>Version 2.4 &nbsp;</td>
     4739<td>[Add] Output of averaged positions when in PPP mode<br> [Mod] Use always the latest received set of Broadcast Ephemeris<br> [Add] QuickStart PPP option<br> [Mod] Improvement of data sharing efficiency among different threads<br> [Mod] Design of PPP panel section<br> [Add] Sigmas for observations and parameters<br> [Add] Stream distribution map<br> [Bug] GPS Ephemeris in RINEX v3 format</td>
    51364740</tr>
    5137 <tr class="row-even"><td></td>
    5138 <td>&nbsp;</td>
    5139 <td>[Mod] Format of PPP logs in logfile</td>
     4741
     4742<tr>
     4743<td>Feb 2011 &nbsp;</td><td>Version 2.5 &nbsp;</td>
     4744<td>[Add] PPP option for sync of clock observations and corrections<br> [Add] Drafted RTCM v3 Galileo ephemeris messages 1045<br> [Add] Drafted RTCM v3 Multiple Signal Messages<br> [Add] Optional specification of sigmas for coordinates and troposphere in PPP<br> [Add] Include Galileo in SPP<br> [Add] Include Galileo observations in output via IP port<br> [Add] Include Galileo observations in output via RINEX v3 files<br> [Mod] Interface format for feeding a real-time engine with observations<br> [Add] Correct observations for Antenna Phase Center offsets<br> [Add] Combine orbit/clock correction streams<br> [Add] Specify corrections mountpoint in PPP panel</td>
    51404745</tr>
    5141 <tr class="row-odd"><td></td>
    5142 <td>&nbsp;</td>
    5143 <td>[Bug] Complete acceleration terms for GLONASS ephemeris</td>
     4746
     4747<tr>
     4748<td>Apr 2011 &nbsp;</td><td>Version 2.6 &nbsp;</td>
     4749<td>[Add] Complete integration of BNS in BNC<br> [Add] SP3 and Clock RINEX output<br> [Add] PPP in post processing Mode<br> [Add] Some RINEX editing & QC functionality<br> [Add] Threshold for orbit outliers in combination solution<br> [Add] Real-time engine becomes orbit/clock server instead of client<br> [Mod] 'EOE' added to orbit/clock stream from engine<br> [Add] Correction for antenna eccentricities<br> [Add] Quick start mode for PPP<br> [Mod] Design of format for feeding engine changed to follow RINEX v3<br> [Mod] Implementation of SSR message encoding modified according to standard<br> [Add] SSL/TLS Support of Ntrip Version 2<br> [Mod] Switch to Qt version 4.7.3<br> [Add] RINEX editing, concatenation and quality check<br> [Add] Reading all configuration options from command line<br> [Mod] RTCM v3 Galileo Broadcast Ephemeris message 1045<br> [Mod] Change default configuration file suffix from 'ini' to 'bnc'<br> [Add] Specific rates for orbits and clocks in streams and SP3/RNX files</td>
    51444750</tr>
    5145 <tr class="row-even"><td></td>
    5146 <td>&nbsp;</td>
    5147 <td>[Bug] Handling ephemeris IOD&#8217;s in PPP mode</td>
     4751
     4752<tr>
     4753<td>May 2012 &nbsp;</td><td>Version 2.6 &nbsp;</td>
     4754<td>[Add] Version 2.6 published</td>
    51484755</tr>
    5149 <tr class="row-odd"><td>Dec 2010</td>
    5150 <td>Version 2.4</td>
    5151 <td>[Add] Output of averaged positions when in PPP mode</td>
     4756
     4757<tr>
     4758<td>Sep 2012 &nbsp;</td><td>Version 2.7 &nbsp;</td>
     4759<td>[Bug] Bug in L5 decoding fixed<br> [Bug] Bug in on-the-fly configuration fixed<br> [Add] Clock RINEX file header extended<br> [Add] Decoding/converting BeiDou and QZSS added<br> [Add] Work on RINEX v2 and v3 quality check started<br> [Mod] Source code completely re-arranged<br> [Add] QWT and QWTPOLAR graphics libraries added<br> [Add] RINEX QC through multipath analysis sky plot<br> [Add] RINEX QC through signal-to-noise ratio sky plot<br> [Add] RINEX QC through satellite availability plot<br> [Add] RINEX QC through satellite elevation plot<br> [Add RINEX QC through PDOP plot<br> [Bug] Short periodic outages in PPP time series when 'Sync Corr' set to zero<br> |Add] Log observation types contained in RTCM Version 3 MSM streams<br> [Add] Reading RINEX v3 observation type header records from RINEX skeleton files<br> [Add] Logfile for RINEX file editing and concatenation<br>[Add] Save PNG plot files on disk<br> [Mod] Plot stream distribution map from Ntrip Broadcaster source-table<br> [Add] Plot stream distribution map from selected sources<br> [Add] Version 2.7 published</td>
    51524760</tr>
    5153 <tr class="row-even"><td></td>
    5154 <td>&nbsp;</td>
    5155 <td>[Mod] Use always the latest received set of Broadcast Ephemeris</td>
     4761
     4762<tr>
     4763<td>Mar 2013 &nbsp;</td><td>Version 2.8 &nbsp;</td>
     4764<td>[Mod] Started work on new version in Sep 2012<br> [Bug] Epoch special event flag in RINEX concatenation<br> [Bug] Limit RINEX v2 records length to 80 characters<br> [Bug] SSR message update interval indicator<br> [Bug] Fixed SSR stream encoding and upload<br> [Add] Concatenate RINEX v3 navigation files containing Galileo ephemeris<br> [Mod] Plausibility check of GLONASS ephemeris<br> [Add] Correcting clocks for scale factor involved in transformation<br> [Mod] Orbit/clock interpolation in SSR stream encoding and upload to caster<br> [Add] Version 2.8 published</td>
    51564765</tr>
    5157 <tr class="row-odd"><td></td>
    5158 <td>&nbsp;</td>
    5159 <td>[Add] QuickStart PPP option</td>
     4766
     4767<tr>
     4768<td>Jul 2013 &nbsp;</td><td>Version 2.9 &nbsp;</td>
     4769<td>[Add] Started work on new version in Mar 2013<br>[Bug] SSR stream upload buffering disabled<br>[Mod] Format for feeding a connected GNSS engine<br>[Mod] RTNET format for receiving data from a connected GNSS engine<br>[Add] Include Galileo in SPP<br>[Add] RINEX QC multipath an SNR sky plots for GLONASS and Galileo<br>[Add] Bias estimation for GLONASS clocks in PPP<br>[Add] Trace positions on GM or OSM maps<br>[Add] Version 2.9 published</td>
    51604770</tr>
    5161 <tr class="row-even"><td></td>
    5162 <td>&nbsp;</td>
    5163 <td>[Mod] Improvement of data sharing efficiency among different threads</td>
     4771
     4772<tr>
     4773<td>Dec 2013 &nbsp;</td><td>Version 2.10 &nbsp;</td>
     4774<td>[Add] Started work on new version in Aug 2013<br>[Bug] Clock RINEX und SP3 file generation on Windows systems<br>[Bug] Broadcast Ephemeris generation<br>[Add] Transformation ITRF2008 to NAD83 and DREF91<br>[Add] CodeBias added to RTNET stream format<br>[Bug] GPS L2 in 'Feed Engine' output<br>[Mod] Made C1 in BeiDou default observation type instead of C2<br>[Add] Feed engine output sorted per stream<br>[Add] Feed engine output filename change on-the-fly<br>[Add] 'Append files' option for RINEX observation files<br>[Mod] Broadcast Correction ASCII file output for message 1058 &amp; 1064 modified<br>[Bug] GPS L2 phase data in RINEX2<br>[Bug] GLONASS frequency numbers<br>[Add] RTCM v3 Galileo Broadcast Ephemeris message 1046<br>[Add] Reset ambiguities in PPP when orbit/clock correction IDs change<br>[Add] Satellite clock offsets are reset in adjustment for combination when orbit/clock correction IDs change<br>[Add] Version 2.10 published</td>
    51644775</tr>
    5165 <tr class="row-odd"><td></td>
    5166 <td>&nbsp;</td>
    5167 <td>[Mod] Design of PPP panel section</td>
     4776
     4777<tr>
     4778<td>Sep 2014 &nbsp;</td><td>Version 2.11 &nbsp;</td>
     4779<td>[Add] Started work on new version in Dec 2013<br>[Mod] SIRGAS transformation parameters adjusted<br>[Mod] ANTEX file updated<br>[Mod] RTCM SSR messages updated<br>[Bug] GLONASS code biases<br>[Mod] Maximum number of GNSS observations increased<br>[Mod] Loss of lock handling changed<br>[Add] Raw stream output through TCP/IP port<br>[Add] Version 2.11.0 published</td>
    51684780</tr>
    5169 <tr class="row-even"><td></td>
    5170 <td>&nbsp;</td>
    5171 <td>[Add] Sigmas for observations and parameters</td>
     4781
     4782<tr>
     4783<td>Mar 2016 &nbsp;</td><td>Version 2.12 &nbsp;</td><td>
     4784[Add] Started work on new version in Sep 2014<br>
     4785[Mod] RINEX file concatenation<br>
     4786[Add] Observation code selection in RINEX file editing<br>
     4787[Mod] Routine handling of data input and output in RINEX format re-written<br>
     4788[Mod] QC routines re-written with the goal of handling all signal types<br>
     4789[Add] Machine-readable output of RINEX QC<br>
     4790[Add] PPP client functionality for parallel processing of an arbitrary number of stations in separate threads<br>
     4791[Bug] Receiver antenna PCO in ionosphere-free PPP mode<br>
     4792[Add] NMEA output for any station processed in PPP mode<br>
     4793[Add] PPP processing of any number of linear combinations of GNSS measurements selected by user<br>
     4794[Add] Encoding/Decoding RTCM SSR I messages for Galileo, BDS, SBAS and QZSS<br>
     4795[Add] Encoding/Decoding RTCM SSR phase bias messages<br>
     4796[Add] Encoding/Decoding RTCM SSR ionospheric model messages, single-layer model for total electron content<br>
     4797[Add] RTCM SSR I messages for Galileo, BDS, SBAS and QZSS support from RTNET interface<br>
     4798[Add] RTCM SSR II messages (phase biases and SSR ionospheric model) support from RTNET interface<br>
     4799[Add] Computataion of VTEC and STEC from SSR ionospheric model messages for usage in PPP mode<br>
     4800[Add] Handle old-fashioned SNR values in RINEX<br>
     4801[Mod] SNR and MP visualization depending on RINEX observation attribute<br>
     4802[Bug] Saastamoinen tropospheric correction for very high elevation receivers<br>
     4803[Add] Comparison of SP3 files<br>
     4804[Add] Encoding/Decoding of RTCM v3 proposal for Galileo Broadcast Ephemeris message 1046<br>
     4805[Add] Encoding/Decoding of RTCM v3 QZSS Broadcast Ephemeris message 1044<br>
     4806[Add] Encoding/Decoding of RTCM v3 SBAS Broadcast Ephemeris message 1043<br>
     4807[Add] Encoding/Decoding of RTCM v3 BDS Broadcast Ephemeris message 63<br>
     4808[Add] RINEX v3 support of Galileo, BDS, SBAS and QZSS Broadcast Ephemerides<br>
     4809[Add] Consideration of the aspect that Galileo NAV message can be providet for the same epoch but with different flags (I/NAV, F/NAV, DVS)<br>
     4810[Bug] VRS support in sending NMEA in Auto/Manual mode to Ntrip Broadcaster<br>
     4811[Add] Forwarding NMEA GNGGA to Ntrip Broadcaster<br>
     4812[Bug] Stream failure/recovery reports<br>
     4813[Add] Compute IODs for BDS and SBAS from CRC over broadcast ephemeris and clock parameters<br>
     4814[Mod] PPP default options<br>
     4815[Add] Example configuration for SP3 file comparison<br>
     4816[Add] Choose between code and phase observations when in PPP SSR I mode<br>
     4817[Bug] Reset time series plot when restarting PPP in post processing mode<br>
     4818[Add] Broadcast ephemeris check regarding allowed age of data sets<br>
     4819[Add] Code bias usage for PPP SSR I mode<br>
     4820[Add] Code bias, phase bias and VTEC usage in extended PPP mode<br>
     4821[Mod] Consideration of the full antenna PCO vector in all PPP modes<br>
     4822[Add] Allow GPS-only and GLONASS-only RINEX v2 Navigation files<br>
     4823[Mod] SSR clock correction converted to seconds to be consistent with broadcast values<br>
     4824[Add] Support Galileo I/NAV broadcast ephemeris<br>
     4825[Add] Extended RINEX v3 filenames<br>
     4826[Add] Stream's country added to configuration string 'mountPoints'<br>
     4827[Add] destinction of GEO/MEO satellites during BDS velocity derermination <br>
     4828[Bug] Velocity determination for geostationary BDS satellites<br>
     4829[Add] Set TOE from BDS week and second<br>
     4830[Add] Use BDS observations and ephemerides in PPP SSR I mode<br>
     4831[Add] Considering that yaw angle restricted to -180 to +180 deg<br>
     4832[Mod] Read local RINEX skeleton files<br>
     4833[Add] Update interval for VTEC in RTNET stream format<br>
     4834[Bug] SBAS IODN<br>
     4835[Bug] Galileo week number<br>
     4836[Add] Phase shift records in RINEX v3 headers<br>
     4837[Add] Output GLONASS slot numbers from scanning stream content<br>
     4838[Add] Decoder interface for PPP SSR I+II messages for Galileo/QZSS/SBAS/BDS<br>
     4839[Mod] Renaming BDS first frequency from '1' to '2'<br>
     4840[Add] RINEX QC, receiver/antenna information editable<br>
     4841[Add] Support of new RINEX header lines regarding phase shifts, GLONAQSS slots and GLONASS biases during file merging<br>
     4842[Add] Switch to port 443 for skeleton file download from https website<br>
     4843[Mod] Default observation types for RINEX v3 files<br>
     4844[Bug] RTCM v2 decoder<br>
     4845[Add] SINEX Troposphere file output<br>
     4846[Add] Comments with respect to RINEX v3 to RINEX v2 observation file conversion
     4847[Add] String for Operating System in logfile output<br>
     4848[Add] Full integration of 'rtcm3torinex'<br>
     4849[Add] Extended command line help<br>
     4850[Add] Version 2.12.0 published<br>
     4851
     4852</td>
    51724853</tr>
    5173 <tr class="row-odd"><td></td>
    5174 <td>&nbsp;</td>
    5175 <td>[Add] Stream distribution map</td>
    5176 </tr>
    5177 <tr class="row-even"><td></td>
    5178 <td>&nbsp;</td>
    5179 <td>[Bug] GPS Ephemeris in RINEX v3 format</td>
    5180 </tr>
    5181 <tr class="row-odd"><td>Feb 2011</td>
    5182 <td>Version 2.5</td>
    5183 <td>[Add] PPP option for sync of clock observations and corrections</td>
    5184 </tr>
    5185 <tr class="row-even"><td></td>
    5186 <td>&nbsp;</td>
    5187 <td>[Add] Drafted RTCM v3 Galileo ephemeris messages 1045</td>
    5188 </tr>
    5189 <tr class="row-odd"><td></td>
    5190 <td>&nbsp;</td>
    5191 <td>[Add] Drafted RTCM v3 Multiple Signal Messages</td>
    5192 </tr>
    5193 <tr class="row-even"><td></td>
    5194 <td>&nbsp;</td>
    5195 <td>[Add] Optional specification of sigmas for coordinates and troposphere in PPP</td>
    5196 </tr>
    5197 <tr class="row-odd"><td></td>
    5198 <td>&nbsp;</td>
    5199 <td>[Add] Include Galileo in SPP</td>
    5200 </tr>
    5201 <tr class="row-even"><td></td>
    5202 <td>&nbsp;</td>
    5203 <td>[Add] Include Galileo observations in output via IP port</td>
    5204 </tr>
    5205 <tr class="row-odd"><td></td>
    5206 <td>&nbsp;</td>
    5207 <td>[Add] Include Galileo observations in output via RINEX v3 files</td>
    5208 </tr>
    5209 <tr class="row-even"><td></td>
    5210 <td>&nbsp;</td>
    5211 <td>[Mod] Interface format for feeding a real-time engine with observations</td>
    5212 </tr>
    5213 <tr class="row-odd"><td></td>
    5214 <td>&nbsp;</td>
    5215 <td>[Add] Correct observations for Antenna Phase Center offsets</td>
    5216 </tr>
    5217 <tr class="row-even"><td></td>
    5218 <td>&nbsp;</td>
    5219 <td>[Add] Combine orbit/clock correction streams</td>
    5220 </tr>
    5221 <tr class="row-odd"><td></td>
    5222 <td>&nbsp;</td>
    5223 <td>[Add] Specify corrections mountpoint in PPP panel</td>
    5224 </tr>
    5225 <tr class="row-even"><td>Apr 2011</td>
    5226 <td>Version 2.6</td>
    5227 <td>[Add] Complete integration of BNS in BNC</td>
    5228 </tr>
    5229 <tr class="row-odd"><td></td>
    5230 <td>&nbsp;</td>
    5231 <td>[Add] SP3 and Clock RINEX output</td>
    5232 </tr>
    5233 <tr class="row-even"><td></td>
    5234 <td>&nbsp;</td>
    5235 <td>[Add] PPP in post processing Mode</td>
    5236 </tr>
    5237 <tr class="row-odd"><td></td>
    5238 <td>&nbsp;</td>
    5239 <td>[Add] Some RINEX editing &amp; QC functionality</td>
    5240 </tr>
    5241 <tr class="row-even"><td></td>
    5242 <td>&nbsp;</td>
    5243 <td>[Add] Threshold for orbit outliers in combination solution</td>
    5244 </tr>
    5245 <tr class="row-odd"><td></td>
    5246 <td>&nbsp;</td>
    5247 <td>[Add] Real-time engine becomes orbit/clock server instead of client</td>
    5248 </tr>
    5249 <tr class="row-even"><td></td>
    5250 <td>&nbsp;</td>
    5251 <td>[Mod] &#8216;EOE&#8217; added to orbit/clock stream from engine</td>
    5252 </tr>
    5253 <tr class="row-odd"><td></td>
    5254 <td>&nbsp;</td>
    5255 <td>[Add] Correction for antenna eccentricities</td>
    5256 </tr>
    5257 <tr class="row-even"><td></td>
    5258 <td>&nbsp;</td>
    5259 <td>[Add] Quick start mode for PPP</td>
    5260 </tr>
    5261 <tr class="row-odd"><td></td>
    5262 <td>&nbsp;</td>
    5263 <td>[Mod] Design of format for feeding engine changed to follow RINEX v3</td>
    5264 </tr>
    5265 <tr class="row-even"><td></td>
    5266 <td>&nbsp;</td>
    5267 <td>[Mod] Implementation of SSR message encoding modified according to standard</td>
    5268 </tr>
    5269 <tr class="row-odd"><td></td>
    5270 <td>&nbsp;</td>
    5271 <td>[Add] SSL/TLS Support of Ntrip Version 2</td>
    5272 </tr>
    5273 <tr class="row-even"><td></td>
    5274 <td>&nbsp;</td>
    5275 <td>[Mod] Switch to Qt version 4.7.3</td>
    5276 </tr>
    5277 <tr class="row-odd"><td></td>
    5278 <td>&nbsp;</td>
    5279 <td>[Add] RINEX editing, concatenation and quality check</td>
    5280 </tr>
    5281 <tr class="row-even"><td></td>
    5282 <td>&nbsp;</td>
    5283 <td>[Add] Reading all configuration options from command line</td>
    5284 </tr>
    5285 <tr class="row-odd"><td></td>
    5286 <td>&nbsp;</td>
    5287 <td>[Mod] RTCM v3 Galileo Broadcast Ephemeris message 1045</td>
    5288 </tr>
    5289 <tr class="row-even"><td></td>
    5290 <td>&nbsp;</td>
    5291 <td>[Mod] Change default configuration file suffix from &#8216;ini&#8217; to &#8216;bnc&#8217;</td>
    5292 </tr>
    5293 <tr class="row-odd"><td></td>
    5294 <td>&nbsp;</td>
    5295 <td>[Add] Specific rates for orbits and clocks in streams and SP3/RNX files</td>
    5296 </tr>
    5297 <tr class="row-even"><td></td>
    5298 <td>&nbsp;</td>
    5299 <td>[Add] Version 2.6 published, May 2012</td>
    5300 </tr>
    5301 <tr class="row-odd"><td>Sep 2012</td>
    5302 <td>Version 2.7</td>
    5303 <td>[Bug] Bug in L5 decoding fixed</td>
    5304 </tr>
    5305 <tr class="row-even"><td></td>
    5306 <td>&nbsp;</td>
    5307 <td>[Bug] Bug in on-the-fly configuration fixed</td>
    5308 </tr>
    5309 <tr class="row-odd"><td></td>
    5310 <td>&nbsp;</td>
    5311 <td>[Add] Clock RINEX file header extended</td>
    5312 </tr>
    5313 <tr class="row-even"><td></td>
    5314 <td>&nbsp;</td>
    5315 <td>[Add] Decoding/converting BeiDou and QZSS added</td>
    5316 </tr>
    5317 <tr class="row-odd"><td></td>
    5318 <td>&nbsp;</td>
    5319 <td>[Add] Work on RINEX v2 and v3 quality check started</td>
    5320 </tr>
    5321 <tr class="row-even"><td></td>
    5322 <td>&nbsp;</td>
    5323 <td>[Mod] Source code completely re-arranged</td>
    5324 </tr>
    5325 <tr class="row-odd"><td></td>
    5326 <td>&nbsp;</td>
    5327 <td>[Add] QWT and QWTPOLAR graphics libraries added</td>
    5328 </tr>
    5329 <tr class="row-even"><td></td>
    5330 <td>&nbsp;</td>
    5331 <td>[Add] RINEX QC through multipath analysis sky plot</td>
    5332 </tr>
    5333 <tr class="row-odd"><td></td>
    5334 <td>&nbsp;</td>
    5335 <td>[Add] RINEX QC through signal-to-noise ratio sky plot</td>
    5336 </tr>
    5337 <tr class="row-even"><td></td>
    5338 <td>&nbsp;</td>
    5339 <td>[Add] RINEX QC through satellite availability plot</td>
    5340 </tr>
    5341 <tr class="row-odd"><td></td>
    5342 <td>&nbsp;</td>
    5343 <td>[Add] RINEX QC through satellite elevation plot</td>
    5344 </tr>
    5345 <tr class="row-even"><td></td>
    5346 <td>&nbsp;</td>
    5347 <td>[Add] RINEX QC through PDOP plot</td>
    5348 </tr>
    5349 <tr class="row-odd"><td></td>
    5350 <td>&nbsp;</td>
    5351 <td>[Bug] Short periodic outages in PPP time series when &#8216;Sync Corr&#8217; set to zero</td>
    5352 </tr>
    5353 <tr class="row-even"><td></td>
    5354 <td>&nbsp;</td>
    5355 <td><a href="#id1"><span class="problematic" id="id2">|</span></a>Add] Log observation types contained in RTCM Version 3 MSM streams</td>
    5356 </tr>
    5357 <tr class="row-odd"><td></td>
    5358 <td>&nbsp;</td>
    5359 <td>[Add] Reading RINEX v3 observation type header records from RINEX skeleton</td>
    5360 </tr>
    5361 <tr class="row-even"><td></td>
    5362 <td>&nbsp;</td>
    5363 <td>[Add] Logfile for RINEX file editing and concatenation</td>
    5364 </tr>
    5365 <tr class="row-odd"><td></td>
    5366 <td>&nbsp;</td>
    5367 <td>[Add] Save PNG plot files on disk</td>
    5368 </tr>
    5369 <tr class="row-even"><td></td>
    5370 <td>&nbsp;</td>
    5371 <td>[Mod] Plot stream distribution map from Ntrip Broadcaster source-table</td>
    5372 </tr>
    5373 <tr class="row-odd"><td></td>
    5374 <td>&nbsp;</td>
    5375 <td>[Add] Plot stream distribution map from selected sources</td>
    5376 </tr>
    5377 <tr class="row-even"><td></td>
    5378 <td>&nbsp;</td>
    5379 <td>[Add] Version 2.7 published</td>
    5380 </tr>
    5381 <tr class="row-odd"><td>Sep 2012</td>
    5382 <td>Version 2.8</td>
    5383 <td>[Mod] Started work on new version in Sep 2012</td>
    5384 </tr>
    5385 <tr class="row-even"><td></td>
    5386 <td>&nbsp;</td>
    5387 <td>[Bug] Epoch special event flag in RINEX concatenation</td>
    5388 </tr>
    5389 <tr class="row-odd"><td></td>
    5390 <td>&nbsp;</td>
    5391 <td>[Bug] Limit RINEX v2 records length to 80 characters</td>
    5392 </tr>
    5393 <tr class="row-even"><td></td>
    5394 <td>&nbsp;</td>
    5395 <td>[Bug] SSR message update interval indicator</td>
    5396 </tr>
    5397 <tr class="row-odd"><td></td>
    5398 <td>&nbsp;</td>
    5399 <td>[Bug] Fixed SSR stream encoding and upload</td>
    5400 </tr>
    5401 <tr class="row-even"><td></td>
    5402 <td>&nbsp;</td>
    5403 <td>[Add] Concatenate RINEX v3 navigation files containing Galileo ephemeris</td>
    5404 </tr>
    5405 <tr class="row-odd"><td></td>
    5406 <td>&nbsp;</td>
    5407 <td>[Mod] Plausibility check of GLONASS ephemeris</td>
    5408 </tr>
    5409 <tr class="row-even"><td></td>
    5410 <td>&nbsp;</td>
    5411 <td>[Add] Correcting clocks for scale factor involved in transformation</td>
    5412 </tr>
    5413 <tr class="row-odd"><td></td>
    5414 <td>&nbsp;</td>
    5415 <td>[Mod] Orbit/clock interpolation in SSR stream encoding and upload to caster</td>
    5416 </tr>
    5417 <tr class="row-even"><td></td>
    5418 <td>&nbsp;</td>
    5419 <td>[Add] Version 2.8 published, Mar 2013</td>
    5420 </tr>
    5421 <tr class="row-odd"><td>Mar 2013</td>
    5422 <td>Version 2.9</td>
    5423 <td>[Add] Started work on new version in Mar 2013</td>
    5424 </tr>
    5425 <tr class="row-even"><td></td>
    5426 <td>&nbsp;</td>
    5427 <td>[Bug] SSR stream upload buffering disabled</td>
    5428 </tr>
    5429 <tr class="row-odd"><td></td>
    5430 <td>&nbsp;</td>
    5431 <td>[Mod] Format for feeding a connected GNSS engine</td>
    5432 </tr>
    5433 <tr class="row-even"><td></td>
    5434 <td>&nbsp;</td>
    5435 <td>[Mod] RTNET format for receiving data from a connected GNSS engine</td>
    5436 </tr>
    5437 <tr class="row-odd"><td></td>
    5438 <td>&nbsp;</td>
    5439 <td>[Add] Include Galileo in SPP</td>
    5440 </tr>
    5441 <tr class="row-even"><td></td>
    5442 <td>&nbsp;</td>
    5443 <td>[Add] RINEX QC multipath an SNR sky plots for GLONASS and Galileo</td>
    5444 </tr>
    5445 <tr class="row-odd"><td></td>
    5446 <td>&nbsp;</td>
    5447 <td>[Add] Bias estimation for GLONASS clocks in PPP</td>
    5448 </tr>
    5449 <tr class="row-even"><td></td>
    5450 <td>&nbsp;</td>
    5451 <td>[Add] Trace positions on GM or OSM maps</td>
    5452 </tr>
    5453 <tr class="row-odd"><td></td>
    5454 <td>&nbsp;</td>
    5455 <td>[Add] Version 2.9 published, Jul 2013</td>
    5456 </tr>
    5457 <tr class="row-even"><td>Aug 2013</td>
    5458 <td>Version 2.10</td>
    5459 <td>[Add] Started work on new version in Aug 2013</td>
    5460 </tr>
    5461 <tr class="row-odd"><td></td>
    5462 <td>&nbsp;</td>
    5463 <td>[Bug] Clock RINEX und SP3 file generation on Windows systems</td>
    5464 </tr>
    5465 <tr class="row-even"><td></td>
    5466 <td>&nbsp;</td>
    5467 <td>[Bug] Broadcast Ephemeris generation</td>
    5468 </tr>
    5469 <tr class="row-odd"><td></td>
    5470 <td>&nbsp;</td>
    5471 <td>[Add] Transformation ITRF2008 to NAD83 and DREF91</td>
    5472 </tr>
    5473 <tr class="row-even"><td></td>
    5474 <td>&nbsp;</td>
    5475 <td>[Add] CodeBias added to RTNET stream format</td>
    5476 </tr>
    5477 <tr class="row-odd"><td></td>
    5478 <td>&nbsp;</td>
    5479 <td>[Bug] GPS L2 in &#8216;Feed Engine&#8217; output</td>
    5480 </tr>
    5481 <tr class="row-even"><td></td>
    5482 <td>&nbsp;</td>
    5483 <td>[Mod] Made C1 in BeiDou default observation type instead of C2</td>
    5484 </tr>
    5485 <tr class="row-odd"><td></td>
    5486 <td>&nbsp;</td>
    5487 <td>[Add] Feed engine output sorted per stream</td>
    5488 </tr>
    5489 <tr class="row-even"><td></td>
    5490 <td>&nbsp;</td>
    5491 <td>[Add] Feed engine output filename change on-the-fly</td>
    5492 </tr>
    5493 <tr class="row-odd"><td></td>
    5494 <td>&nbsp;</td>
    5495 <td>[Add] &#8216;Append files&#8217; option for RINEX observation files</td>
    5496 </tr>
    5497 <tr class="row-even"><td></td>
    5498 <td>&nbsp;</td>
    5499 <td>[Mod] Broadcast Correction ASCII file output for message 1058 &amp; 1064 modified</td>
    5500 </tr>
    5501 <tr class="row-odd"><td></td>
    5502 <td>&nbsp;</td>
    5503 <td>[Bug] GPS L2 phase data in RINEX2</td>
    5504 </tr>
    5505 <tr class="row-even"><td></td>
    5506 <td>&nbsp;</td>
    5507 <td>[Bug] GLONASS frequency numbers</td>
    5508 </tr>
    5509 <tr class="row-odd"><td></td>
    5510 <td>&nbsp;</td>
    5511 <td>[Add] RTCM v3 Galileo Broadcast Ephemeris message 1046</td>
    5512 </tr>
    5513 <tr class="row-even"><td></td>
    5514 <td>&nbsp;</td>
    5515 <td>[Add] Reset ambiguities in PPP when orbit/clock correction IDs change</td>
    5516 </tr>
    5517 <tr class="row-odd"><td></td>
    5518 <td>&nbsp;</td>
    5519 <td>[Add] Satellite clock offsets are reset in adjustment for combination when orbit/clock correction IDs change</td>
    5520 </tr>
    5521 <tr class="row-even"><td></td>
    5522 <td>&nbsp;</td>
    5523 <td>[Add] Version 2.10 published in Dec 2013</td>
    5524 </tr>
    5525 <tr class="row-odd"><td>Dec 2013</td>
    5526 <td>Version 2.11</td>
    5527 <td>[Add] Started work on new version in Dec 2013</td>
    5528 </tr>
    5529 <tr class="row-even"><td></td>
    5530 <td>&nbsp;</td>
    5531 <td>[Mod] SIRGAS transformation parameters adjusted</td>
    5532 </tr>
    5533 <tr class="row-odd"><td></td>
    5534 <td>&nbsp;</td>
    5535 <td>[Mod] ANTEX file updated</td>
    5536 </tr>
    5537 <tr class="row-even"><td></td>
    5538 <td>&nbsp;</td>
    5539 <td>[Mod] RTCM SSR messages updated</td>
    5540 </tr>
    5541 <tr class="row-odd"><td></td>
    5542 <td>&nbsp;</td>
    5543 <td>[Bug] GLONASS code biases</td>
    5544 </tr>
    5545 <tr class="row-even"><td></td>
    5546 <td>&nbsp;</td>
    5547 <td>[Mod] Maximum number of GNSS observations increased</td>
    5548 </tr>
    5549 <tr class="row-odd"><td></td>
    5550 <td>&nbsp;</td>
    5551 <td>[Mod] Loss of lock handling changed</td>
    5552 </tr>
    5553 <tr class="row-even"><td></td>
    5554 <td>&nbsp;</td>
    5555 <td>[Add] Raw stream output through TCP/IP port</td>
    5556 </tr>
    5557 <tr class="row-odd"><td></td>
    5558 <td>&nbsp;</td>
    5559 <td>[Add] Version 2.11.0 published in Sep 2014</td>
    5560 </tr>
    5561 <tr class="row-even"><td>Sep 2014</td>
    5562 <td>Version 2.12</td>
    5563 <td>[Add] Started work on new version in Sep 2014</td>
    5564 </tr>
    5565 <tr class="row-odd"><td></td>
    5566 <td>&nbsp;</td>
    5567 <td>[Mod] RINEX file concatenation</td>
    5568 </tr>
    5569 <tr class="row-even"><td></td>
    5570 <td>&nbsp;</td>
    5571 <td>[Add] Observation code selection in RINEX file editing</td>
    5572 </tr>
    5573 <tr class="row-odd"><td></td>
    5574 <td>&nbsp;</td>
    5575 <td>[Mod] Routine handling of data input and output in RINEX format re-written</td>
    5576 </tr>
    5577 <tr class="row-even"><td></td>
    5578 <td>&nbsp;</td>
    5579 <td>[Mod] QC routines re-written with the goal of handling all signal types</td>
    5580 </tr>
    5581 <tr class="row-odd"><td></td>
    5582 <td>&nbsp;</td>
    5583 <td>[Add] Machine-readable output of RINEX QC</td>
    5584 </tr>
    5585 <tr class="row-even"><td></td>
    5586 <td>&nbsp;</td>
    5587 <td>[Add] PPP client functionality for parallel processing of an arbitrary number of stations in separate threads</td>
    5588 </tr>
    5589 <tr class="row-odd"><td></td>
    5590 <td>&nbsp;</td>
    5591 <td>[Bug] Receiver antenna PCO in ionosphere-free PPP mode</td>
    5592 </tr>
    5593 <tr class="row-even"><td></td>
    5594 <td>&nbsp;</td>
    5595 <td>[Add] NMEA output for any station processed in PPP mode</td>
    5596 </tr>
    5597 <tr class="row-odd"><td></td>
    5598 <td>&nbsp;</td>
    5599 <td>[Add] PPP processing of any number of linear combinations of GNSS measurements selected by user</td>
    5600 </tr>
    5601 <tr class="row-even"><td></td>
    5602 <td>&nbsp;</td>
    5603 <td>[Add] Encoding/Decoding RTCM SSR I messages for Galileo, BDS, SBAS and QZSS</td>
    5604 </tr>
    5605 <tr class="row-odd"><td></td>
    5606 <td>&nbsp;</td>
    5607 <td>[Add] Encoding/Decoding RTCM SSR phase bias messages</td>
    5608 </tr>
    5609 <tr class="row-even"><td></td>
    5610 <td>&nbsp;</td>
    5611 <td>[Add] Encoding/Decoding RTCM SSR ionospheric model messages, single-layer model for total electron content</td>
    5612 </tr>
    5613 <tr class="row-odd"><td></td>
    5614 <td>&nbsp;</td>
    5615 <td>[Add] RTCM SSR I messages for Galileo, BDS, SBAS and QZSS support from RTNET interface</td>
    5616 </tr>
    5617 <tr class="row-even"><td></td>
    5618 <td>&nbsp;</td>
    5619 <td>[Add] RTCM SSR II messages (phase biases and SSR ionospheric model) support from RTNET interface</td>
    5620 </tr>
    5621 <tr class="row-odd"><td></td>
    5622 <td>&nbsp;</td>
    5623 <td>[Add] Computation of VTEC and STEC from SSR ionospheric model messages for usage in PPP mode</td>
    5624 </tr>
    5625 <tr class="row-even"><td></td>
    5626 <td>&nbsp;</td>
    5627 <td>[Add] Handle old-fashioned SNR values in RINEX</td>
    5628 </tr>
    5629 <tr class="row-odd"><td></td>
    5630 <td>&nbsp;</td>
    5631 <td>[Mod] SNR and MP visualization depending on RINEX observation attribute</td>
    5632 </tr>
    5633 <tr class="row-even"><td></td>
    5634 <td>&nbsp;</td>
    5635 <td>[Bug] Saastamoinen tropospheric correction for very high elevation receivers</td>
    5636 </tr>
    5637 <tr class="row-odd"><td></td>
    5638 <td>&nbsp;</td>
    5639 <td>[Add] Comparison of SP3 files</td>
    5640 </tr>
    5641 <tr class="row-even"><td></td>
    5642 <td>&nbsp;</td>
    5643 <td>[Add] Encoding/Decoding of RTCM v3 proposal for Galileo Broadcast Ephemeris message 1046</td>
    5644 </tr>
    5645 <tr class="row-odd"><td></td>
    5646 <td>&nbsp;</td>
    5647 <td>[Add] Encoding/Decoding of RTCM v3 QZSS Broadcast Ephemeris message 1044</td>
    5648 </tr>
    5649 <tr class="row-even"><td></td>
    5650 <td>&nbsp;</td>
    5651 <td>[Add] Encoding/Decoding of RTCM v3 SBAS Broadcast Ephemeris message 1043</td>
    5652 </tr>
    5653 <tr class="row-odd"><td></td>
    5654 <td>&nbsp;</td>
    5655 <td>[Add] Encoding/Decoding of RTCM v3 BDS Broadcast Ephemeris message 63</td>
    5656 </tr>
    5657 <tr class="row-even"><td></td>
    5658 <td>&nbsp;</td>
    5659 <td>[Add] RINEX v3 support of Galileo, BDS, SBAS and QZSS Broadcast Ephemerides</td>
    5660 </tr>
    5661 <tr class="row-odd"><td></td>
    5662 <td>&nbsp;</td>
    5663 <td>[Add] Consideration of the aspect that Galileo NAV message can be provided for the same epoch but with different flags (I/NAV, F/NAV, DVS)</td>
    5664 </tr>
    5665 <tr class="row-even"><td></td>
    5666 <td>&nbsp;</td>
    5667 <td>[Bug] VRS support in sending NMEA in Auto/Manual mode to Ntrip Broadcaster</td>
    5668 </tr>
    5669 <tr class="row-odd"><td></td>
    5670 <td>&nbsp;</td>
    5671 <td>[Add] Forwarding NMEA GNGGA to Ntrip Broadcaster</td>
    5672 </tr>
    5673 <tr class="row-even"><td></td>
    5674 <td>&nbsp;</td>
    5675 <td>[Bug] Stream failure/recovery reports</td>
    5676 </tr>
    5677 <tr class="row-odd"><td></td>
    5678 <td>&nbsp;</td>
    5679 <td>[Add] Compute IODs for BDS and SBAS from CRC over Broadcast Ephemeris and clock parameters</td>
    5680 </tr>
    5681 <tr class="row-even"><td></td>
    5682 <td>&nbsp;</td>
    5683 <td>[Mod] PPP default options</td>
    5684 </tr>
    5685 <tr class="row-odd"><td></td>
    5686 <td>&nbsp;</td>
    5687 <td>[Add] Example configuration for SP3 file comparison</td>
    5688 </tr>
    5689 <tr class="row-even"><td></td>
    5690 <td>&nbsp;</td>
    5691 <td>[Add] Choose between code and phase observations when in PPP SSR I mode</td>
    5692 </tr>
    5693 <tr class="row-odd"><td></td>
    5694 <td>&nbsp;</td>
    5695 <td>[Bug] Reset time series plot when restarting PPP in post processing mode</td>
    5696 </tr>
    5697 <tr class="row-even"><td></td>
    5698 <td>&nbsp;</td>
    5699 <td>[Add] Broadcast ephemeris check regarding allowed age of data sets</td>
    5700 </tr>
    5701 <tr class="row-odd"><td></td>
    5702 <td>&nbsp;</td>
    5703 <td>[Add] Code bias usage for PPP SSR I mode</td>
    5704 </tr>
    5705 <tr class="row-even"><td></td>
    5706 <td>&nbsp;</td>
    5707 <td>[Add] Code bias, phase bias and VTEC usage in extended PPP mode</td>
    5708 </tr>
    5709 <tr class="row-odd"><td></td>
    5710 <td>&nbsp;</td>
    5711 <td>[Mod] Consideration of the full antenna PCO vector in all PPP modes</td>
    5712 </tr>
    5713 <tr class="row-even"><td></td>
    5714 <td>&nbsp;</td>
    5715 <td>[Add] Allow GPS-only and GLONASS-only RINEX v2 Navigation files</td>
    5716 </tr>
    5717 <tr class="row-odd"><td></td>
    5718 <td>&nbsp;</td>
    5719 <td>[Mod] SSR clock correction converted to seconds to be consistent with broadcast values</td>
    5720 </tr>
    5721 <tr class="row-even"><td></td>
    5722 <td>&nbsp;</td>
    5723 <td>[Add] Support Galileo I/NAV Broadcast Ephemeris</td>
    5724 </tr>
    5725 <tr class="row-odd"><td></td>
    5726 <td>&nbsp;</td>
    5727 <td>[Add] Extended RINEX v3 filenames</td>
    5728 </tr>
    5729 <tr class="row-even"><td></td>
    5730 <td>&nbsp;</td>
    5731 <td>[Add] Stream&#8217;s country added to configuration string &#8216;mountPoints&#8217;</td>
    5732 </tr>
    5733 <tr class="row-odd"><td></td>
    5734 <td>&nbsp;</td>
    5735 <td>[Add] Distinction of GEO/MEO satellites during BDS velocity determination</td>
    5736 </tr>
    5737 <tr class="row-even"><td></td>
    5738 <td>&nbsp;</td>
    5739 <td>[Bug] Velocity determination for geostationary BDS satellites</td>
    5740 </tr>
    5741 <tr class="row-odd"><td></td>
    5742 <td>&nbsp;</td>
    5743 <td>[Add] Set TOE from BDS week and second</td>
    5744 </tr>
    5745 <tr class="row-even"><td></td>
    5746 <td>&nbsp;</td>
    5747 <td>[Add] Use BDS observations and ephemerides in PPP SSR I mode</td>
    5748 </tr>
    5749 <tr class="row-odd"><td></td>
    5750 <td>&nbsp;</td>
    5751 <td>[Add] Considering that yaw angle restricted to -180 to +180 deg</td>
    5752 </tr>
    5753 <tr class="row-even"><td></td>
    5754 <td>&nbsp;</td>
    5755 <td>[Mod] Read local RINEX skeleton files</td>
    5756 </tr>
    5757 <tr class="row-odd"><td></td>
    5758 <td>&nbsp;</td>
    5759 <td>[Add] Update interval for VTEC in RTNET stream format</td>
    5760 </tr>
    5761 <tr class="row-even"><td></td>
    5762 <td>&nbsp;</td>
    5763 <td>[Bug] SBAS IODN</td>
    5764 </tr>
    5765 <tr class="row-odd"><td></td>
    5766 <td>&nbsp;</td>
    5767 <td>[Bug] Galileo week number</td>
    5768 </tr>
    5769 <tr class="row-even"><td></td>
    5770 <td>&nbsp;</td>
    5771 <td>[Add] Phase shift records in RINEX v3 headers</td>
    5772 </tr>
    5773 <tr class="row-odd"><td></td>
    5774 <td>&nbsp;</td>
    5775 <td>[Add] Output GLONASS slot numbers from scanning stream content</td>
    5776 </tr>
    5777 <tr class="row-even"><td></td>
    5778 <td>&nbsp;</td>
    5779 <td>[Add] Decoder interface for PPP SSR I+II messages for Galileo/QZSS/SBAS/BDS</td>
    5780 </tr>
    5781 <tr class="row-odd"><td></td>
    5782 <td>&nbsp;</td>
    5783 <td>[Mod] Renaming BDS first frequency from &#8216;1&#8217; to &#8216;2&#8217;</td>
    5784 </tr>
    5785 <tr class="row-even"><td></td>
    5786 <td>&nbsp;</td>
    5787 <td>[Add] RINEX QC, receiver/antenna information editable</td>
    5788 </tr>
    5789 <tr class="row-odd"><td></td>
    5790 <td>&nbsp;</td>
    5791 <td>[Add] Support of new RINEX header lines regarding phase shifts, GLONAQSS slots and GLONASS biases during file merging</td>
    5792 </tr>
    5793 <tr class="row-even"><td></td>
    5794 <td>&nbsp;</td>
    5795 <td>[Add] Switch to port 443 for skeleton file download from https website</td>
    5796 </tr>
    5797 <tr class="row-odd"><td></td>
    5798 <td>&nbsp;</td>
    5799 <td>[Mod] Default observation types for RINEX v3 files</td>
    5800 </tr>
    5801 <tr class="row-even"><td></td>
    5802 <td>&nbsp;</td>
    5803 <td>[Bug] RTCM v2 decoder</td>
    5804 </tr>
    5805 <tr class="row-odd"><td></td>
    5806 <td>&nbsp;</td>
    5807 <td>[Add] SINEX Troposphere file output</td>
    5808 </tr>
    5809 <tr class="row-even"><td></td>
    5810 <td>&nbsp;</td>
    5811 <td>[Add] Comments with respect to RINEX v3 to RINEX v2 observation file conversion [Add] String for Operating System in logfile output</td>
    5812 </tr>
    5813 <tr class="row-odd"><td></td>
    5814 <td>&nbsp;</td>
    5815 <td>[Add] Full integration of &#8216;rtcm3torinex&#8217;</td>
    5816 </tr>
    5817 <tr class="row-even"><td></td>
    5818 <td>&nbsp;</td>
    5819 <td>[Add] Extended command line help</td>
    5820 </tr>
    5821 <tr class="row-odd"><td></td>
    5822 <td>&nbsp;</td>
    5823 <td>[Add] Version 2.12.0 published in April 2016</td>
    5824 </tr>
    5825 <tr class="row-even"><td>Apr 2016</td>
    5826 <td>Version 2.13</td>
    5827 <td>[Add] Started work on new version in Apr 2016</td>
    5828 </tr>
    5829 </tbody>
     4854
    58304855</table>
    5831 </div>
    5832 <div class="section" id="rtcm-standards">
    5833 <span id="index-2"></span><h3>RTCM Standards<a class="headerlink" href="#rtcm-standards" title="Permalink to this headline">¶</a></h3>
    5834 <p>The Radio Technical Commission for Maritime Services (RTCM) is an international non-profit scientific, professional and educational organization. Special Committees provide a forum in which governmental and non-governmental members work together to develop technical standards and consensus recommendations in regard to issues of particular concern. RTCM is engaged in the development of international standards for maritime radionavigation and radiocommunication systems. The output documents and reports prepared by RTCM Committees are published as RTCM Recommended Standards. Topics concerning Differential Global Navigation Satellite Systems (DGNSS) are handled by the Special Committee SC 104.</p>
    5835 <p>Personal copies of RTCM Recommended Standards can be ordered through <a class="reference external" href="http://www.rtcm.org/orderinfo.php">http://www.rtcm.org/orderinfo.php</a>.</p>
    5836 <div class="section" id="ntrip-version-1">
    5837 <span id="index-3"></span><h4>Ntrip Version 1<a class="headerlink" href="#ntrip-version-1" title="Permalink to this headline">¶</a></h4>
    5838 <p>&#8216;Networked Transport of RTCM via Internet Protocol&#8217; Version 1.0 (Ntrip) stands for an application-level protocol streaming Global Navigation Satellite System (GNSS) data over the Internet. Ntrip is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/1.1. The HTTP objects are enhanced to GNSS data streams.</p>
    5839 <p>Ntrip Version 1 is an RTCM standard designed for disseminating differential correction data (e.g. in the RTCM-104 format) or other kinds of GNSS streaming data to stationary or mobile users over the Internet, allowing simultaneous PC, Laptop, PDA, or receiver connections to a broadcasting host. Ntrip supports wireless Internet access through Mobile IP Networks like GSM, GPRS, EDGE, or UMTS.</p>
    5840 <p>Ntrip is implemented in three system software components: Ntrip Clients, Ntrip Servers and Ntrip Broadcasters. The Ntrip Broadcaster is the actual HTTP server program whereas Ntrip Client and Ntrip Server are acting as HTTP clients.</p>
    5841 <p>Ntrip is an open none-proprietary protocol. Major characteristics of Ntrip&#8217;s dissemination technique are:</p>
    5842 <ul class="simple">
     4856</p>
     4857
     4858<p><h4>3.2 <a name="rtcm">RTCM Standards</h4></p>
     4859
     4860<p>
     4861The Radio Technical Commission for Maritime Services (RTCM) is an international non-profit scientific, professional and educational organization. Special Committees provide a forum in which governmental and non-governmental members work together to develop technical standards and consensus recommendations in regard to issues of particular concern. RTCM is engaged in the development of international standards for maritime radionavigation and radiocommunication systems. The output documents and reports prepared by RTCM Committees are published as RTCM Recommended Standards. Topics concerning Differential Global Navigation Satellite Systems (DGNSS) are handled by the Special Committee SC 104.
     4862<p>
     4863Personal copies of RTCM Recommended Standards can be ordered through <u>http://www.rtcm.org/orderinfo.php</u>.
     4864</p>
     4865
     4866<p><h4>3.2.1 <a name="ntrip1">Ntrip Version 1</h4></p>
     4867
     4868<p>
     4869'Networked Transport of RTCM via Internet Protocol' Version 1.0 (Ntrip) stands for an application-level protocol streaming Global Navigation Satellite System (GNSS) data over the Internet. Ntrip is a generic, stateless protocol based on the Hypertext Transfer Protocol HTTP/1.1. The HTTP objects are enhanced to GNSS data streams.
     4870</p>
     4871
     4872<p>
     4873Ntrip Version 1 is an RTCM standard designed for disseminating differential correction data (e.g. in the RTCM-104 format) or other kinds of GNSS streaming data to stationary or mobile users over the Internet, allowing simultaneous PC, Laptop, PDA, or receiver connections to a broadcasting host. Ntrip supports wireless Internet access through Mobile IP Networks like GSM, GPRS, EDGE, or UMTS.
     4874</p>
     4875
     4876<p>
     4877Ntrip is implemented in three system software components: Ntrip Clients, Ntrip Servers and Ntrip Broadcasters. The Ntrip Broadcaster is the actual HTTP server program whereas Ntrip Client and Ntrip Server are acting as HTTP clients.
     4878</p>
     4879
     4880<p>
     4881Ntrip is an open none-proprietary protocol. Major characteristics of Ntrip's dissemination technique are:
     4882<ul>
    58434883<li>Based on the popular HTTP streaming standard; comparatively easy to implement when having limited client and server platform resources available;</li>
    58444884<li>Application not limited to one particular plain or coded stream content; ability to distribute any kind of GNSS data;</li>
    … …  
    58474887<li>Enables streaming over mobile IP networks because of using TCP/IP.</li>
    58484888</ul>
    5849 <p>The Ntrip Broadcaster maintains a source-table containing information on available Ntrip streams, networks of Ntrip streams and Ntrip Broadcasters. The source-table is sent to an Ntrip Client on request. Source-table records are dedicated to one of the following: Data Streams (record type STR), Casters (record type CAS), or Networks of streams (record type NET).</p>
    5850 <p>Source-table records of type STR contain the following data fields: &#8216;mountpoint&#8217;, &#8216;identifier&#8217;, &#8216;format&#8217;, &#8216;format-details&#8217;, &#8216;carrier&#8217;, &#8216;nav-system&#8217;, &#8216;network&#8217;, &#8216;country&#8217;, &#8216;latitude&#8217;, &#8216;longitude&#8217;, &#8216;nmea&#8217;, &#8216;solution&#8217;, &#8216;generator&#8217;, &#8216;compr-encryp&#8217;, &#8216;authentication&#8217;, &#8216;fee&#8217;, &#8216;bitrate&#8217;, &#8216;misc&#8217;.</p>
    5851 <p>Source-table records of type NET contain the following data fields: &#8216;identifier&#8217;, &#8216;operator&#8217;, &#8216;authentication&#8217;, &#8216;fee&#8217;, &#8216;web-net&#8217;, &#8216;web-str&#8217;, &#8216;web-reg&#8217;, &#8216;misc&#8217;.</p>
    5852 <p>Source-table records of type CAS contain the following data fields: &#8216;host&#8217;, &#8216;port&#8217;, &#8216;identifier&#8217;, &#8216;operator&#8217;, &#8216;nmea&#8217;, &#8216;country&#8217;, &#8216;latitude&#8217;, &#8216;longitude&#8217;, &#8216;misc&#8217;.</p>
    5853 </div>
    5854 <div class="section" id="ntrip-version-2">
    5855 <span id="index-4"></span><h4>Ntrip Version 2<a class="headerlink" href="#ntrip-version-2" title="Permalink to this headline">¶</a></h4>
    5856 <p>The major changes of Ntrip Version 2 compared to Version 1.0 are:</p>
    5857 <ul class="simple">
     4889</p>
     4890
     4891<p>
     4892The Ntrip Broadcaster maintains a source-table containing information on available Ntrip streams, networks of Ntrip streams and Ntrip Broadcasters. The source-table is sent to an Ntrip Client on request. Source-table records are dedicated to one of the following: Data Streams (record type STR), Casters (record type CAS), or Networks of streams (record type NET).
     4893</p>
     4894
     4895<p>
     4896Source-table records of type STR contain the following data fields: 'mountpoint', 'identifier', 'format', 'format-details', 'carrier', 'nav-system', 'network', 'country', 'latitude', 'longitude', 'nmea', 'solution', 'generator', 'compr-encryp', 'authentication', 'fee', 'bitrate', 'misc'.
     4897</p>
     4898<p>
     4899Source-table records of type NET contain the following data fields: 'identifier', 'operator', 'authentication', 'fee', 'web-net', 'web-str', 'web-reg', 'misc'.
     4900</p>
     4901<p>
     4902Source-table records of type CAS contain the following data fields: 'host', 'port', 'identifier', 'operator', 'nmea', 'country', 'latitude', 'longitude', 'misc'.
     4903</p>
     4904
     4905<p><h4>3.2.2 <a name="ntrip2">Ntrip Version 2</h4></p>
     4906
     4907<p>
     4908The major changes of Ntrip Version 2 compared to Version 1.0 are:
     4909</p>
     4910
     4911<ul>
    58584912<li>Cleared and fixed design problems and HTTP protocol violations;</li>
    58594913<li>Replaced nonstandard directives;</li>
    … …  
    58634917<li>RTSP communication.</li>
    58644918</ul>
    5865 <p>Ntrip Version 2 allows to communicate either in TCP/IP mode or in RTSP/RTP mode or in UDP mode whereas Version 1 is limited to TCP/IP only. It furthermore allows using the Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL) cryptographic protocols for secure Ntrip communication over the Internet.</p>
    5866 </div>
    5867 <div class="section" id="rtcm-version-2">
    5868 <span id="index-5"></span><h4>RTCM Version 2<a class="headerlink" href="#rtcm-version-2" title="Permalink to this headline">¶</a></h4>
    5869 <p>Transmitting GNSS carrier phase data can be done through RTCM Version 2 messages. Please note that only RTCM Version 2.2 and 2.3 streams may include GLONASS data. Messages that may be of interest here are:</p>
    5870 <ul class="simple">
    5871 <li>Type 1 message is the range correction message and is the primary message in code-phase differential positioning (DGPS). It is computed in the base receiver by computing the error in the range measurement for each tracked SV.</li>
    5872 <li>Type 2 message is automatically generated when a new set of satellite ephemeris is downloaded to the base receiver. It is the computed difference between the old ephemeris and the new ephemeris. Type 2 messages are used when the base station is transmitting Type 1 messages.</li>
    5873 <li>Type 3 and 22 messages are the base station position and the antenna offset. Type 3 and 22 are used in RTK processing to perform antenna reduction.</li>
    5874 <li>Type 6 message is a null frame filler message that is provided for data links that require continuous transmission of data, even if there are no corrections to send. As many Type 6 messages are sent as required to fill in the gap between two correction messages (type 1). Message 6 is not sent in burst mode.</li>
    5875 <li>Type 9 message serves the same purpose as Type 1, but does not require a complete satellite set. As a result, Type 9 messages require a more stable clock than a station transmitting Type 1 &#8216;s, because the satellite corrections have different time references.</li>
    5876 <li>Type 16 message is simply a text message entered by the user that is transmitted from the base station to the rover. It is used with code-phase differential.</li>
    5877 <li>Type 18 and 20 messages are RTK uncorrected carrier phase data and carrier phase corrections.</li>
    5878 <li>Type 19 and 21 messages are the uncorrected pseudo-range measurements and pseudo-range corrections used in RTK.</li>
    5879 <li>Type 23 message provides the information on the antenna type used on the reference station.</li>
    5880 <li>Type 24 message carries the coordinates of the installed antenna&#8217;s ARP in the GNSS coordinate system coordinates.</li>
    5881 </ul>
    5882 </div>
    5883 <div class="section" id="rtcm-version-3">
    5884 <span id="index-6"></span><h4>RTCM Version 3<a class="headerlink" href="#rtcm-version-3" title="Permalink to this headline">¶</a></h4>
    5885 <p>RTCM Version 3 has been developed as a more efficient alternative to RTCM Version 2. Service providers and vendors have asked for a standard that would be more efficient, easy to use, and more easily adaptable to new situations. The main complaint was that the Version 2 parity scheme was wasteful of bandwidth. Another complaint was that the parity is not independent from word to word. Still another was that even with so many bits devoted to parity, the actual integrity of the message was not as high as it should be. Plus, 30-bit words are awkward to handle. The Version 3 standard is intended to correct these weaknesses.</p>
    5886 <p>RTCM Version 3 defines a number of message types. Messages that may be of interest here are:</p>
    5887 <ul class="simple">
     4919
     4920<p>Ntrip Version 2 allows to communicate either in TCP/IP mode or in RTSP/RTP mode or in UDP mode whereas Version 1 is limited to TCP/IP only. It furthermore allows using the Transport Layer Security (TLS) and its predecessor, Secure Sockets Layer (SSL) cryptographic protocols for secure Ntrip communication over the Internet.
     4921</p>
     4922
     4923<p><h4>3.2.3 <a name="rtcm2">RTCM Version 2</h4></p>
     4924<p>
     4925Transmitting GNSS carrier phase data can be done through RTCM Version 2 messages. Please note that only RTCM Version 2.2 and 2.3 streams may include GLONASS data. Messages that may be of interest here are:
     4926</p>
     4927
     4928<ul>
     4929<li>
     4930Type 1 message is the range correction message and is the primary message in code-phase differential positioning (DGPS). It is computed in the base receiver by computing the error in the range measurement for each tracked SV.
     4931</li>
     4932<li>
     4933Type 2 message is automatically generated when a new set of satellite ephemeris is downloaded to the base receiver. It is the computed difference between the old ephemeris and the new ephemeris. Type 2 messages are used when the base station is transmitting Type 1 messages.
     4934</li>
     4935<li>
     4936Type 3 and 22 messages are the base station position and the antenna offset. Type 3 and 22 are used in RTK processing to perform antenna reduction.
     4937</li>
     4938<li>
     4939Type 6 message is a null frame filler message that is provided for data links that require continuous transmission of data, even if there are no corrections to send. As many Type 6 messages are sent as required to fill in the gap between two correction messages (type 1). Message 6 is not sent in burst mode.
     4940</li>
     4941<li>
     4942Type 9 message serves the same purpose as Type 1, but does not require a complete satellite set. As a result, Type 9 messages require a more stable clock than a station transmitting Type 1 's, because the satellite corrections have different time references.
     4943</li>
     4944<li>
     4945Type 16 message is simply a text message entered by the user that is transmitted from the base station to the rover. It is used with code-phase differential.
     4946</li>
     4947<li>
     4948Type 18 and 20 messages are RTK uncorrected carrier phase data and carrier phase corrections.
     4949</li>
     4950<li>
     4951Type 19 and 21 messages are the uncorrected pseudo-range measurements and pseudo-range corrections used in RTK.
     4952</li>
     4953<li>
     4954Type 23 message provides the information on the antenna type used on the reference station.
     4955</li>
     4956<li>
     4957Type 24 message carries the coordinates of the installed antenna's ARP in the GNSS coordinate system coordinates.
     4958</li>
     4959</ul>
     4960
     4961<p><h4>3.2.4 <a name="rtcm3">RTCM Version 3</h4></p>
     4962<p>
     4963RTCM Version 3 has been developed as a more efficient alternative to RTCM Version 2. Service providers and vendors have asked for a standard that would be more efficient, easy to use, and more easily adaptable to new situations. The main complaint was that the Version 2 parity scheme was wasteful of bandwidth. Another complaint was that the parity is not independent from word to word. Still another was that even with so many bits devoted to parity, the actual integrity of the message was not as high as it should be. Plus, 30-bit words are awkward to handle. The Version 3 standard is intended to correct these weaknesses.
     4964</p>
     4965<p>
     4966RTCM Version 3 defines a number of message types. Messages that may be of interest here are:
     4967<ul>
    58884968<li>Type 1001, GPS L1 code and phase.</li>
    58894969<li>Type 1002, GPS L1 code and phase and ambiguities and carrier-to-noise ratio.</li>
    … …  
    59064986<li>Type 1045, Galileo F/NAV ephemeris.</li>
    59074987<li>Type 1046, Galileo I/NAV ephemeris.</li>
    5908 <li>Type 63, BeiDou ephemeris, tentative.</li>
    5909 <li>Type 4088 and 4095, Proprietary messages.</li>
    5910 </ul>
    5911 <p>The following are so-called &#8216;State Space Representation&#8217; (SSR) messages:</p>
    5912 <ul class="simple">
     4988<li>Type   63, BeiDou ephemeris, tentative.</li>
     4989<li>Type 4088 and 4095, Proprietary messages.
     4990</li>
     4991</ul>
     4992</p>
     4993
     4994<p>
     4995The following are so-called 'State Space Representation' (SSR) messages:
     4996<ul>
    59134997<li>Type 1057, GPS orbit corrections to Broadcast Ephemeris</li>
    59144998<li>Type 1058, GPS clock corrections to Broadcast Ephemeris</li>
    … …  
    59165000<li>Type 1060, Combined orbit and clock corrections to GPS Broadcast Ephemeris</li>
    59175001<li>Type 1061, GPS User Range Accuracy (URA)</li>
    5918 <li>Type 1062, High-rate GPS clock corrections to Broadcast Ephemeris</li>
     5002<li>Type 1062, High-rate GPS clock corrections to Broadcast Ephemeris<br><br></li>
     5003
    59195004<li>Type 1063, GLONASS orbit corrections to Broadcast Ephemeris</li>
    59205005<li>Type 1064, GLONASS clock corrections to Broadcast Ephemeris</li>
    … …  
    59225007<li>Type 1066, Combined orbit and clock corrections to GLONASS Broadcast Ephemeris</li>
    59235008<li>Type 1067, GLONASS User Range Accuracy (URA)</li>
    5924 <li>Type 1068, High-rate GLONASS clock corrections to Broadcast Ephemeris</li>
     5009<li>Type 1068, High-rate GLONASS clock corrections to Broadcast Ephemeris<br><br></li>
     5010
    59255011<li>Type 1240, Galileo orbit corrections to Broadcast Ephemeris</li>
    59265012<li>Type 1241, Galileo clock corrections to Broadcast Ephemeris</li>
    … …  
    59285014<li>Type 1243, Combined orbit and clock corrections to Galileo Broadcast Ephemeris</li>
    59295015<li>Type 1244, Galileo User Range Accuracy (URA)</li>
    5930 <li>Type 1245, High-rate Galileo clock corrections to Broadcast Ephemeris</li>
     5016<li>Type 1245, High-rate Galileo clock corrections to Broadcast Ephemeris<br><br></li>
     5017
    59315018<li>Type 1246, QZSS orbit corrections to Broadcast Ephemeris</li>
    59325019<li>Type 1247, QZSS clock corrections to Broadcast Ephemeris</li>
    … …  
    59345021<li>Type 1249, Combined orbit and clock corrections to QZSS Broadcast Ephemeris</li>
    59355022<li>Type 1250, QZSS User Range Accuracy (URA)</li>
    5936 <li>Type 1251, High-rate QZSS clock corrections to Broadcast Ephemeris</li>
     5023<li>Type 1251, High-rate QZSS clock corrections to Broadcast Ephemeris<br><br></li>
     5024
    59375025<li>Type 1252, SBAS orbit corrections to Broadcast Ephemeris</li>
    59385026<li>Type 1253, SBAS clock corrections to Broadcast Ephemeris</li>
    … …  
    59405028<li>Type 1255, Combined orbit and clock corrections to SBAS Broadcast Ephemeris</li>
    59415029<li>Type 1256, SBAS User Range Accuracy (URA)</li>
    5942 <li>Type 1257, High-rate SBAS clock corrections to Broadcast Ephemeris</li>
     5030<li>Type 1257, High-rate SBAS clock corrections to Broadcast Ephemeris<br><br></li>
     5031
    59435032<li>Type 1258, BDS orbit corrections to Broadcast Ephemeris</li>
    59445033<li>Type 1259, BDS clock corrections to Broadcast Ephemeris</li>
    … …  
    59465035<li>Type 1261, Combined orbit and clock corrections to BDS Broadcast Ephemeris</li>
    59475036<li>Type 1262, BDS User Range Accuracy (URA)</li>
    5948 <li>Type 1263, High-rate BDS clock corrections to Broadcast Ephemeris\</li>
     5037<li>Type 1263, High-rate BDS clock corrections to Broadcast Ephemeris<br><br></li>
     5038
    59495039<li>Type 1264 SSR Ionosphere VTEC Spherical Harmonics</li>
    59505040<li>Type 1265 SSR GPS Satellite Phase Bias</li>
    … …  
    59555045<li>Type 1270 SSR Satellite BDS Phase Bias</li>
    59565046</ul>
    5957 <p>The following are so-called &#8216;Multiple Signal Messages&#8217; (MSM):</p>
    5958 <ul class="simple">
     5047</p>
     5048
     5049<p>
     5050The following are so-called 'Multiple Signal Messages' (MSM):
     5051<ul>
    59595052<li>Type 1071, Compact GPS pseudo-ranges</li>
    59605053<li>Type 1072, Compact GPS carrier phases</li>
    … …  
    59635056<li>Type 1075, Full GPS pseudo-ranges, carrier phases, Doppler and signal strength</li>
    59645057<li>Type 1076, Full GPS pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    5965 <li>Type 1077, Full GPS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)</li>
     5058<li>Type 1077, Full GPS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
    59665059<li>Type 1081, Compact GLONASS pseudo-ranges</li>
    59675060<li>Type 1082, Compact GLONASS carrier phases</li>
    … …  
    59705063<li>Type 1085, Full GLONASS pseudo-ranges, carrier phases, Doppler and signal strength</li>
    59715064<li>Type 1086, Full GLONASS pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    5972 <li>Type 1087, Full GLONASS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)</li>
     5065<li>Type 1087, Full GLONASS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
    59735066<li>Type 1091, Compact Galileo pseudo-ranges</li>
    59745067<li>Type 1092, Compact Galileo carrier phases</li>
    … …  
    59775070<li>Type 1095, Full Galileo pseudo-ranges, carrier phases, Doppler and signal strength</li>
    59785071<li>Type 1096, Full Galileo pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    5979 <li>Type 1097, Full Galileo pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)</li>
     5072<li>Type 1097, Full Galileo pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
    59805073<li>Type 1121, Compact BeiDou pseudo-ranges</li>
    59815074<li>Type 1122, Compact BeiDou carrier phases</li>
    … …  
    59845077<li>Type 1125, Full BeiDou pseudo-ranges, carrier phases, Doppler and signal strength</li>
    59855078<li>Type 1126, Full BeiDou pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    5986 <li>Type 1127, Full BeiDou pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)</li>
     5079<li>Type 1127, Full BeiDou pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
    59875080<li>Type 1111, Compact QZSS pseudo-ranges</li>
    59885081<li>Type 1112, Compact QZSS carrier phases</li>
    … …  
    59915084<li>Type 1115, Full QZSS pseudo-ranges, carrier phases, Doppler and signal strength</li>
    59925085<li>Type 1116, Full QZSS pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    5993 <li>Type 1117, Full QZSS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)</li>
    5994 </ul>
    5995 <p>The following are proposed &#8216;Multiple Signal Messages&#8217; (MSM) under discussion for standardization:</p>
    5996 <ul class="simple">
     5086<li>Type 1117, Full QZSS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
     5087
     5088</ul>
     5089</p>
     5090
     5091<p>
     5092The following are proposed 'Multiple Signal Messages' (MSM) under discussion for standardization:
     5093<ul>
    59975094<li>Type 1101, Compact SBAS pseudo-ranges</li>
    59985095<li>Type 1102, Compact SBAS carrier phases</li>
    … …  
    60015098<li>Type 1105, Full SBAS pseudo-ranges, carrier phases, Doppler and signal strength</li>
    60025099<li>Type 1106, Full SBAS pseudo-ranges and carrier phases plus signal strength (high resolution)</li>
    6003 <li>Type 1107, Full SBAS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)\</li>
    6004 </ul>
    6005 </div>
    6006 </div>
    6007 <div class="section" id="command-line-help">
    6008 <span id="index-7"></span><h3>Command Line Help<a class="headerlink" href="#command-line-help" title="Permalink to this headline">¶</a></h3>
    6009 <p>Command line option <code class="docutils literal"><span class="pre">--help</span></code> provides a complete list of all configuration parameters which can be specified via BNC&#8217;s Command Line Interface (CLI). Note that command line options overrule configuration options specified in the configuration file. The following is the output produced when running BNC with command line option &#8216;&#8211;help&#8217;:</p>
    6010 <div class="section" id="usage">
    6011 <h4>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h4>
    6012 <div class="highlight-bash"><div class="highlight"><pre>bnc --help <span class="o">(</span>MS Windows: bnc.exe --help <span class="p">|</span> more<span class="o">)</span>
    6013     --nw
    6014     --version <span class="o">(</span>MS Windows: bnc.exe --version <span class="p">|</span> more<span class="o">)</span>
    6015     --display <span class="o">{</span>name<span class="o">}</span>
    6016     --conf <span class="o">{</span>confFileName<span class="o">}</span>
    6017     --file <span class="o">{</span>rawFileName<span class="o">}</span>
    6018     --key  <span class="o">{</span>keyName<span class="o">}</span> <span class="o">{</span>keyValue<span class="o">}</span>
    6019 </pre></div>
    6020 </div>
    6021 </div>
    6022 <div class="section" id="network-panel-keys">
    6023 <span id="index-8"></span><h4>Network Panel keys<a class="headerlink" href="#network-panel-keys" title="Permalink to this headline">¶</a></h4>
    6024 <table border="1" class="docutils">
    6025 <colgroup>
    6026 <col width="18%" />
    6027 <col width="82%" />
    6028 </colgroup>
    6029 <thead valign="bottom">
    6030 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6031 <th class="head"><strong>Meaning</strong></th>
    6032 </tr>
    6033 </thead>
    6034 <tbody valign="top">
    6035 <tr class="row-even"><td>proxyHost</td>
    6036 <td>Proxy host, name or IP address [character string]</td>
    6037 </tr>
    6038 <tr class="row-odd"><td>proxyPort</td>
    6039 <td>Proxy port [integer number]</td>
    6040 </tr>
    6041 <tr class="row-even"><td>sslCaCertPath</td>
    6042 <td>Full path to SSL certificates [character string]</td>
    6043 </tr>
    6044 <tr class="row-odd"><td>sslIgnoreErrors</td>
    6045 <td>Ignore SSL authorization errors [integer number: 0=no,2=yes]</td>
    6046 </tr>
    6047 </tbody>
    6048 </table>
    6049 </div>
    6050 <div class="section" id="general-panel-keys">
    6051 <span id="index-9"></span><h4>General Panel keys<a class="headerlink" href="#general-panel-keys" title="Permalink to this headline">¶</a></h4>
    6052 <table border="1" class="docutils">
    6053 <colgroup>
    6054 <col width="18%" />
    6055 <col width="82%" />
    6056 </colgroup>
    6057 <thead valign="bottom">
    6058 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6059 <th class="head"><strong>Meaning</strong></th>
    6060 </tr>
    6061 </thead>
    6062 <tbody valign="top">
    6063 <tr class="row-even"><td>logFile</td>
    6064 <td>Logfile, full path [character string]</td>
    6065 </tr>
    6066 <tr class="row-odd"><td>rnxAppend</td>
    6067 <td>Append files [integer number: 0=no,2=yes]</td>
    6068 </tr>
    6069 <tr class="row-even"><td>onTheFlyInterval</td>
    6070 <td>Configuration reload interval [character string: 1 day|1 hour|5 min|1 min]</td>
    6071 </tr>
    6072 <tr class="row-odd"><td>autoStart</td>
    6073 <td>Auto start [integer number: 0=no,2=yes]</td>
    6074 </tr>
    6075 <tr class="row-even"><td>rawOutFile</td>
    6076 <td>Raw output file, full path [character string]</td>
    6077 </tr>
    6078 </tbody>
    6079 </table>
    6080 </div>
    6081 <div class="section" id="rinex-observations-panel-keys">
    6082 <span id="index-10"></span><h4>RINEX Observations Panel keys<a class="headerlink" href="#rinex-observations-panel-keys" title="Permalink to this headline">¶</a></h4>
    6083 <table border="1" class="docutils">
    6084 <colgroup>
    6085 <col width="18%" />
    6086 <col width="82%" />
    6087 </colgroup>
    6088 <thead valign="bottom">
    6089 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6090 <th class="head"><strong>Meaning</strong></th>
    6091 </tr>
    6092 </thead>
    6093 <tbody valign="top">
    6094 <tr class="row-even"><td>rnxPath</td>
    6095 <td>Directory [character string]</td>
    6096 </tr>
    6097 <tr class="row-odd"><td>rnxIntr</td>
    6098 <td>File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]</td>
    6099 </tr>
    6100 <tr class="row-even"><td>rnxSampl</td>
    6101 <td>File sampling rate [integer number of seconds: 0,5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6102 </tr>
    6103 <tr class="row-odd"><td>rnxSkel</td>
    6104 <td>RINEX skeleton file extension [character string]</td>
    6105 </tr>
    6106 <tr class="row-even"><td>rnxOnlyWithSKL</td>
    6107 <td>Using RINEX skeleton file is mandatory [integer number: 0=no,2=yes]</td>
    6108 </tr>
    6109 <tr class="row-odd"><td>rnxScript</td>
    6110 <td>File upload script, full path [character string]</td>
    6111 </tr>
    6112 <tr class="row-even"><td>rnxV2Priority</td>
    6113 <td>Priority of signal attributes [character string, list separated by blank character, example: G:CWPX_? R:CP]</td>
    6114 </tr>
    6115 <tr class="row-odd"><td>rnxV3</td>
    6116 <td>Produce version 3 file content [integer number: 0=no,2=yes]</td>
    6117 </tr>
    6118 <tr class="row-even"><td>rnxV3filenames</td>
    6119 <td>Produce version 3 filenames [integer number: 0=no,2=yes]</td>
    6120 </tr>
    6121 </tbody>
    6122 </table>
    6123 </div>
    6124 <div class="section" id="rinex-ephemeris-panel-keys">
    6125 <span id="index-11"></span><h4>RINEX Ephemeris Panel keys<a class="headerlink" href="#rinex-ephemeris-panel-keys" title="Permalink to this headline">¶</a></h4>
    6126 <table border="1" class="docutils">
    6127 <colgroup>
    6128 <col width="18%" />
    6129 <col width="82%" />
    6130 </colgroup>
    6131 <thead valign="bottom">
    6132 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6133 <th class="head"><strong>Meaning</strong></th>
    6134 </tr>
    6135 </thead>
    6136 <tbody valign="top">
    6137 <tr class="row-even"><td>ephPath</td>
    6138 <td>Directory [character string]</td>
    6139 </tr>
    6140 <tr class="row-odd"><td>ephIntr</td>
    6141 <td>File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]</td>
    6142 </tr>
    6143 <tr class="row-even"><td>ephOutPort</td>
    6144 <td>Output port [integer number]</td>
    6145 </tr>
    6146 <tr class="row-odd"><td>ephV3</td>
    6147 <td>Produce version 3 file content [integer number: 0=no,2=yes]</td>
    6148 </tr>
    6149 <tr class="row-even"><td>ephV3filenames</td>
    6150 <td>Produce version 3 filenames [integer number: 0=no,2=yes]</td>
    6151 </tr>
    6152 </tbody>
    6153 </table>
    6154 </div>
    6155 <div class="section" id="rinex-editing-and-qc-panel-keys">
    6156 <span id="index-12"></span><h4>RINEX Editing and QC Panel keys<a class="headerlink" href="#rinex-editing-and-qc-panel-keys" title="Permalink to this headline">¶</a></h4>
    6157 <table border="1" class="docutils">
    6158 <colgroup>
    6159 <col width="17%" />
    6160 <col width="83%" />
    6161 </colgroup>
    6162 <thead valign="bottom">
    6163 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6164 <th class="head"><strong>Meaning</strong></th>
    6165 </tr>
    6166 </thead>
    6167 <tbody valign="top">
    6168 <tr class="row-even"><td>reqcAction</td>
    6169 <td>Action specification [character string:  Blank|Edit/Concatenate|Analyze]</td>
    6170 </tr>
    6171 <tr class="row-odd"><td>reqcObsFile</td>
    6172 <td>Input observations file(s), full path [character string, comma separated list in quotation marks]</td>
    6173 </tr>
    6174 <tr class="row-even"><td>reqcNavFile</td>
    6175 <td>Input navigation file(s), full path [character string, comma separated list in quotation marks]</td>
    6176 </tr>
    6177 <tr class="row-odd"><td>reqcOutObsFile</td>
    6178 <td>Output observations file, full path [character string]</td>
    6179 </tr>
    6180 <tr class="row-even"><td>reqcOutNavFile</td>
    6181 <td>Output navigation file, full path [character string]</td>
    6182 </tr>
    6183 <tr class="row-odd"><td>reqcOutLogFile</td>
    6184 <td>Output logfile, full path [character string]</td>
    6185 </tr>
    6186 <tr class="row-even"><td>reqcLogSummaryOnly</td>
    6187 <td>Output only summary of logfile [integer number: 0=no,2=yes]</td>
    6188 </tr>
    6189 <tr class="row-odd"><td>reqcSkyPlotSignals</td>
    6190 <td>Observation signals [character string, list separated by blank character, example: C:2&amp;7 E:1&amp;5 G:1&amp;2 J:1&amp;2 R:1&amp;2 S:1&amp;5]</td>
    6191 </tr>
    6192 <tr class="row-even"><td>reqcPlotDir</td>
    6193 <td>QC plots directory [character string]</td>
    6194 </tr>
    6195 <tr class="row-odd"><td>reqcRnxVersion</td>
    6196 <td>RINEX version [integer number: 2|3]</td>
    6197 </tr>
    6198 <tr class="row-even"><td>reqcSampling</td>
    6199 <td>RINEX output file sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6200 </tr>
    6201 <tr class="row-odd"><td>reqcV2Priority</td>
    6202 <td>Version 2 priority of signal attributes [character string, list separated by blank character, example: G:CWPX_? R:CP]</td>
    6203 </tr>
    6204 <tr class="row-even"><td>reqcStartDateTime</td>
    6205 <td>Start time [character string, example: 1967-11-02T00:00:00]</td>
    6206 </tr>
    6207 <tr class="row-odd"><td>reqcEndDateTime</td>
    6208 <td>Stop time [character string, example: 2099-01-01T00:00:00]</td>
    6209 </tr>
    6210 <tr class="row-even"><td>reqcRunBy</td>
    6211 <td>Operators name [character string]</td>
    6212 </tr>
    6213 <tr class="row-odd"><td>eqcUseObsTypes</td>
    6214 <td>Use observation types [character string, list separated by blank character, example: G:C1C G:L1C R:C1C RC1P]</td>
    6215 </tr>
    6216 <tr class="row-even"><td>reqcComment</td>
    6217 <td>Additional comments [character string]</td>
    6218 </tr>
    6219 <tr class="row-odd"><td>reqcOldMarkerName</td>
    6220 <td>Old marker name [character string]</td>
    6221 </tr>
    6222 <tr class="row-even"><td>reqcNewMarkerName</td>
    6223 <td>New marker name [character string]</td>
    6224 </tr>
    6225 <tr class="row-odd"><td>reqcOldAntennaName</td>
    6226 <td>Old antenna name [character string]</td>
    6227 </tr>
    6228 <tr class="row-even"><td>reqcNewAntennaName</td>
    6229 <td>New antenna name [character string]</td>
    6230 </tr>
    6231 <tr class="row-odd"><td>reqcOldAntennaNumber</td>
    6232 <td>Old antenna number [character string]</td>
    6233 </tr>
    6234 <tr class="row-even"><td>reqcNewAntennaNumber</td>
    6235 <td>New antenna number [character string]</td>
    6236 </tr>
    6237 <tr class="row-odd"><td>reqcOldAntennadN</td>
    6238 <td>Old north eccentricity [character string]</td>
    6239 </tr>
    6240 <tr class="row-even"><td>reqcNewAntennadN</td>
    6241 <td>New north eccentricity [character string]</td>
    6242 </tr>
    6243 <tr class="row-odd"><td>reqcOldAntennadE</td>
    6244 <td>Old east eccentricity [character string]</td>
    6245 </tr>
    6246 <tr class="row-even"><td>reqcNewAntennadE</td>
    6247 <td>New east eccentricity [character string]</td>
    6248 </tr>
    6249 <tr class="row-odd"><td>reqcOldAntennadU</td>
    6250 <td>Old up eccentricity [character string]</td>
    6251 </tr>
    6252 <tr class="row-even"><td>reqcNewAntennadU</td>
    6253 <td>New up eccentricity [character string]</td>
    6254 </tr>
    6255 <tr class="row-odd"><td>reqcOldReceiverName</td>
    6256 <td>Old receiver name [character string]</td>
    6257 </tr>
    6258 <tr class="row-even"><td>reqcNewReceiverName</td>
    6259 <td>New receiver name [character string]</td>
    6260 </tr>
    6261 <tr class="row-odd"><td>reqcOldReceiverNumber</td>
    6262 <td>Old receiver number [character string]</td>
    6263 </tr>
    6264 <tr class="row-even"><td>reqcNewReceiverNumber</td>
    6265 <td>New receiver number [character string]</td>
    6266 </tr>
    6267 </tbody>
    6268 </table>
    6269 </div>
    6270 <div class="section" id="sp3-comparison-panel-keys">
    6271 <span id="index-13"></span><h4>SP3 Comparison Panel keys<a class="headerlink" href="#sp3-comparison-panel-keys" title="Permalink to this headline">¶</a></h4>
    6272 <table border="1" class="docutils">
    6273 <colgroup>
    6274 <col width="18%" />
    6275 <col width="82%" />
    6276 </colgroup>
    6277 <thead valign="bottom">
    6278 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6279 <th class="head"><strong>Meaning</strong></th>
    6280 </tr>
    6281 </thead>
    6282 <tbody valign="top">
    6283 <tr class="row-even"><td>sp3CompFile</td>
    6284 <td>SP3 input files, full path [character string, comma separated list in quotation marks]</td>
    6285 </tr>
    6286 <tr class="row-odd"><td>sp3CompExclude</td>
    6287 <td>Satellite exclusion list [character string, comma separated list in quotation marks, example: G04,G31,R]</td>
    6288 </tr>
    6289 <tr class="row-even"><td>sp3CompOutLogFile</td>
    6290 <td>Output logfile, full path [character string]</td>
    6291 </tr>
    6292 </tbody>
    6293 </table>
    6294 </div>
    6295 <div class="section" id="broadcast-corrections-panel-keys">
    6296 <span id="index-14"></span><h4>Broadcast Corrections Panel keys<a class="headerlink" href="#broadcast-corrections-panel-keys" title="Permalink to this headline">¶</a></h4>
    6297 <table border="1" class="docutils">
    6298 <colgroup>
    6299 <col width="18%" />
    6300 <col width="82%" />
    6301 </colgroup>
    6302 <thead valign="bottom">
    6303 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6304 <th class="head"><strong>Meaning</strong></th>
    6305 </tr>
    6306 </thead>
    6307 <tbody valign="top">
    6308 <tr class="row-even"><td>corrPath</td>
    6309 <td>Directory for saving files in ASCII format [character string]</td>
    6310 </tr>
    6311 <tr class="row-odd"><td>corrIntr</td>
    6312 <td>File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]</td>
    6313 </tr>
    6314 <tr class="row-even"><td>corrPort</td>
    6315 <td>Output port [integer number]</td>
    6316 </tr>
    6317 </tbody>
    6318 </table>
    6319 </div>
    6320 <div class="section" id="feed-engine-panel-keys">
    6321 <span id="index-15"></span><h4>Feed Engine Panel keys<a class="headerlink" href="#feed-engine-panel-keys" title="Permalink to this headline">¶</a></h4>
    6322 <table border="1" class="docutils">
    6323 <colgroup>
    6324 <col width="18%" />
    6325 <col width="82%" />
    6326 </colgroup>
    6327 <thead valign="bottom">
    6328 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6329 <th class="head"><strong>Meaning</strong></th>
    6330 </tr>
    6331 </thead>
    6332 <tbody valign="top">
    6333 <tr class="row-even"><td>outPort</td>
    6334 <td>Output port, synchronized [integer number]</td>
    6335 </tr>
    6336 <tr class="row-odd"><td>outWait</td>
    6337 <td>Wait for full observation epoch [integer number of seconds: 1-30]</td>
    6338 </tr>
    6339 <tr class="row-even"><td>outSampl</td>
    6340 <td>Sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6341 </tr>
    6342 <tr class="row-odd"><td>outFile</td>
    6343 <td>Output file, full path [character string]</td>
    6344 </tr>
    6345 <tr class="row-even"><td>outUPort</td>
    6346 <td>Output port, unsynchronized [integer number]</td>
    6347 </tr>
    6348 </tbody>
    6349 </table>
    6350 </div>
    6351 <div class="section" id="serial-output-panel-keys">
    6352 <span id="index-16"></span><h4>Serial Output Panel keys<a class="headerlink" href="#serial-output-panel-keys" title="Permalink to this headline">¶</a></h4>
    6353 <table border="1" class="docutils">
    6354 <colgroup>
    6355 <col width="18%" />
    6356 <col width="82%" />
    6357 </colgroup>
    6358 <thead valign="bottom">
    6359 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6360 <th class="head"><strong>Meaning</strong></th>
    6361 </tr>
    6362 </thead>
    6363 <tbody valign="top">
    6364 <tr class="row-even"><td>serialMountPoint</td>
    6365 <td>Mountpoint [character string]</td>
    6366 </tr>
    6367 <tr class="row-odd"><td>serialPortName</td>
    6368 <td>Port name [character string]</td>
    6369 </tr>
    6370 <tr class="row-even"><td>serialBaudRate</td>
    6371 <td>Baud rate [integer number: 110|300|600|1200|2400|4800|9600|19200|38400|57600|115200]</td>
    6372 </tr>
    6373 <tr class="row-odd"><td>serialFlowControl</td>
    6374 <td>Flow control [character string: OFF|XONXOFF|HARDWARE</td>
    6375 </tr>
    6376 <tr class="row-even"><td>serialDataBits</td>
    6377 <td>Data bits [integer number: 5|6|7|8]</td>
    6378 </tr>
    6379 <tr class="row-odd"><td>serialParity</td>
    6380 <td>Parity [character string: NONE|ODD|EVEN|SPACE]</td>
    6381 </tr>
    6382 <tr class="row-even"><td>serialStopBits</td>
    6383 <td>Stop bits [integer number: 1|2]</td>
    6384 </tr>
    6385 <tr class="row-odd"><td>serialAutoNMEA</td>
    6386 <td>NMEA specification [character string: no|Auto|Manual GPGGA|Manual GNGGA]</td>
    6387 </tr>
    6388 <tr class="row-even"><td>serialFileNMEA</td>
    6389 <td>NMEA filename, full path [character string]</td>
    6390 </tr>
    6391 <tr class="row-odd"><td>serialHeightNMEA</td>
    6392 <td>Height [floating-point number]</td>
    6393 </tr>
    6394 <tr class="row-even"><td>serialHeightNMEASampling</td>
    6395 <td>Sampling rate [integer number of seconds: 0|10|20|30|...|280|290|300]</td>
    6396 </tr>
    6397 </tbody>
    6398 </table>
    6399 </div>
    6400 <div class="section" id="outages-panel-keys">
    6401 <span id="index-17"></span><h4>Outages Panel keys<a class="headerlink" href="#outages-panel-keys" title="Permalink to this headline">¶</a></h4>
    6402 <table border="1" class="docutils">
    6403 <colgroup>
    6404 <col width="18%" />
    6405 <col width="82%" />
    6406 </colgroup>
    6407 <thead valign="bottom">
    6408 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6409 <th class="head"><strong>Meaning</strong></th>
    6410 </tr>
    6411 </thead>
    6412 <tbody valign="top">
    6413 <tr class="row-even"><td>adviseObsRate</td>
    6414 <td>Stream observation rate [character string: 0.1 Hz|0.2 Hz|0.5 Hz|1 Hz|5 Hz]</td>
    6415 </tr>
    6416 <tr class="row-odd"><td>adviseFail</td>
    6417 <td>Failure threshold [integer number of minutes: 0-60]</td>
    6418 </tr>
    6419 <tr class="row-even"><td>adviseReco</td>
    6420 <td>Recovery threshold [integer number of minutes: 0-60]</td>
    6421 </tr>
    6422 <tr class="row-odd"><td>adviseScript</td>
    6423 <td>Advisory script, full path [character string]</td>
    6424 </tr>
    6425 </tbody>
    6426 </table>
    6427 </div>
    6428 <div class="section" id="miscellaneous-panel-keys">
    6429 <span id="index-18"></span><h4>Miscellaneous Panel keys<a class="headerlink" href="#miscellaneous-panel-keys" title="Permalink to this headline">¶</a></h4>
    6430 <table border="1" class="docutils">
    6431 <colgroup>
    6432 <col width="18%" />
    6433 <col width="82%" />
    6434 </colgroup>
    6435 <thead valign="bottom">
    6436 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6437 <th class="head"><strong>Meaning</strong></th>
    6438 </tr>
    6439 </thead>
    6440 <tbody valign="top">
    6441 <tr class="row-even"><td>miscMount</td>
    6442 <td>Mountpoint [character string]</td>
    6443 </tr>
    6444 <tr class="row-odd"><td>miscIntr</td>
    6445 <td>Interval for logging latency [character string: Blank|2 sec|10 sec|1 min|5 min|15 min|1 hour|6 hours|1 day]</td>
    6446 </tr>
    6447 <tr class="row-even"><td>miscScanRTCM</td>
    6448 <td>Scan for RTCM message numbers [integer number: 0=no,2=yes]</td>
    6449 </tr>
    6450 <tr class="row-odd"><td>miscPort</td>
    6451 <td>Output port [integer number]</td>
    6452 </tr>
    6453 </tbody>
    6454 </table>
    6455 </div>
    6456 <div class="section" id="ppp-client-panel-1-keys">
    6457 <span id="index-19"></span><h4>PPP Client Panel 1 keys<a class="headerlink" href="#ppp-client-panel-1-keys" title="Permalink to this headline">¶</a></h4>
    6458 <table border="1" class="docutils">
    6459 <colgroup>
    6460 <col width="18%" />
    6461 <col width="82%" />
    6462 </colgroup>
    6463 <thead valign="bottom">
    6464 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6465 <th class="head"><strong>Meaning</strong></th>
    6466 </tr>
    6467 </thead>
    6468 <tbody valign="top">
    6469 <tr class="row-even"><td>PPP/dataSource</td>
    6470 <td>Data source [character string: Blank|Real-Time Streams|RINEX Files]</td>
    6471 </tr>
    6472 <tr class="row-odd"><td>PPP/rinexObs</td>
    6473 <td>RINEX observation file, full path [character string]</td>
    6474 </tr>
    6475 <tr class="row-even"><td>PPP/rinexNav</td>
    6476 <td>RINEX navigation file, full path [character string]</td>
    6477 </tr>
    6478 <tr class="row-odd"><td>PPP/corrMount</td>
    6479 <td>Corrections mountpoint [character string]</td>
    6480 </tr>
    6481 <tr class="row-even"><td>PPP/corrFile</td>
    6482 <td>Corrections file, full path [character string]</td>
    6483 </tr>
    6484 <tr class="row-odd"><td>PPP/antexFile</td>
    6485 <td>ANTEX file, full path [character string]</td>
    6486 </tr>
    6487 <tr class="row-even"><td>PPP/crdFile</td>
    6488 <td>Coordinates file, full path [character string]</td>
    6489 </tr>
    6490 <tr class="row-odd"><td>PPP/v3filenames</td>
    6491 <td>Produce version 3 filenames, [integer number: 0=no,2=yes]</td>
    6492 </tr>
    6493 <tr class="row-even"><td>PPP/logPath</td>
    6494 <td>Directory for PPP log files [character string]</td>
    6495 </tr>
    6496 <tr class="row-odd"><td>PPP/nmeaPath</td>
    6497 <td>Directory for NMEA output files [character string]</td>
    6498 </tr>
    6499 <tr class="row-even"><td>PPP/snxtroPath</td>
    6500 <td>Directory for SINEX troposphere output files [character string]</td>
    6501 </tr>
    6502 <tr class="row-odd"><td>PPP/snxtroIntr</td>
    6503 <td>SINEX troposphere file interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]</td>
    6504 </tr>
    6505 <tr class="row-even"><td>PPP/snxtroSampl</td>
    6506 <td>SINEX troposphere file sampling rate [integer number of seconds: 0|30|60|90|120|150|180|210|240|270|300]</td>
    6507 </tr>
    6508 <tr class="row-odd"><td>PPP/snxtroAc</td>
    6509 <td>SINEX troposphere Analysis Center [character string]</td>
    6510 </tr>
    6511 <tr class="row-even"><td>PPP/snxtroSol</td>
    6512 <td>SINEX troposphere solution ID [character string]</td>
    6513 </tr>
    6514 </tbody>
    6515 </table>
    6516 </div>
    6517 <div class="section" id="ppp-client-panel-2-keys">
    6518 <span id="index-20"></span><h4>PPP Client Panel 2 keys<a class="headerlink" href="#ppp-client-panel-2-keys" title="Permalink to this headline">¶</a></h4>
    6519 <table border="1" class="docutils">
    6520 <colgroup>
    6521 <col width="9%" />
    6522 <col width="91%" />
    6523 </colgroup>
    6524 <thead valign="bottom">
    6525 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6526 <th class="head"><strong>Meaning</strong></th>
    6527 </tr>
    6528 </thead>
    6529 <tbody valign="top">
    6530 <tr class="row-even"><td>PPP/staTable</td>
    6531 <td>Station specifications table [character string, semicolon separated list, each element in quotation marks, example:&#8221;FFMJ1,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7777;CUT07,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7778&#8221;]</td>
    6532 </tr>
    6533 </tbody>
    6534 </table>
    6535 </div>
    6536 <div class="section" id="ppp-client-panel-3-keys">
    6537 <span id="index-21"></span><h4>PPP Client Panel 3 keys<a class="headerlink" href="#ppp-client-panel-3-keys" title="Permalink to this headline">¶</a></h4>
    6538 <table border="1" class="docutils">
    6539 <colgroup>
    6540 <col width="18%" />
    6541 <col width="82%" />
    6542 </colgroup>
    6543 <thead valign="bottom">
    6544 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6545 <th class="head"><strong>Meaning</strong></th>
    6546 </tr>
    6547 </thead>
    6548 <tbody valign="top">
    6549 <tr class="row-even"><td>PPP/lcGPS</td>
    6550 <td>Select linear combination from GPS code or phase data [character string; P3|P3&amp;L3]</td>
    6551 </tr>
    6552 <tr class="row-odd"><td>PPP/lcGLONASS</td>
    6553 <td>Select linear combination from GLONASS code or phase data [character string: no|P3|L3|P3&amp;L3]</td>
    6554 </tr>
    6555 <tr class="row-even"><td>PPP/lcGalileo</td>
    6556 <td>elect linear combination from Galileo code or phase data [character string: no|P3|L3|P3&amp;L3]</td>
    6557 </tr>
    6558 <tr class="row-odd"><td>PPP/lcBDS</td>
    6559 <td>Select linear combination from BDS code or phase data [character string: no|P3|L3|P3&amp;L3]</td>
    6560 </tr>
    6561 <tr class="row-even"><td>PPP/sigmaC1</td>
    6562 <td>Sigma for code observations in meters [floating-point number]</td>
    6563 </tr>
    6564 <tr class="row-odd"><td>PPP/sigmaL1</td>
    6565 <td>Sigma for phase observations in meters [floating-point number]</td>
    6566 </tr>
    6567 <tr class="row-even"><td>PPP/maxResC1</td>
    6568 <td>Maximal residuum for code observations in meters [floating-point number]</td>
    6569 </tr>
    6570 <tr class="row-odd"><td>PPP/maxResL1</td>
    6571 <td>Maximal residuum for phase observations in meters [floating-point number]</td>
    6572 </tr>
    6573 <tr class="row-even"><td>PPP/eleWgtCode</td>
    6574 <td>Elevation dependent waiting of code observations [integer number: 0=no,2=yes]</td>
    6575 </tr>
    6576 <tr class="row-odd"><td>PPP/eleWgtPhase</td>
    6577 <td>Elevation dependent waiting of phase observations [integer number: 0=no,2=yes]</td>
    6578 </tr>
    6579 <tr class="row-even"><td>PPP/minObs</td>
    6580 <td>Minimum number of observations [integer number: 4|5|6]</td>
    6581 </tr>
    6582 <tr class="row-odd"><td>PPP/minEle</td>
    6583 <td>Minimum satellite elevation in degrees [integer number: 0-20]</td>
    6584 </tr>
    6585 <tr class="row-even"><td>PPP/corrWaitTime</td>
    6586 <td>Wait for clock corrections [integer number of seconds: no|1-20]</td>
    6587 </tr>
    6588 <tr class="row-odd"><td>PPP/seedingTime</td>
    6589 <td>Seeding time span for Quick Start [integer number of seconds]</td>
    6590 </tr>
    6591 </tbody>
    6592 </table>
    6593 </div>
    6594 <div class="section" id="ppp-client-panel-4-keys">
    6595 <span id="index-22"></span><h4>PPP Client Panel 4 keys<a class="headerlink" href="#ppp-client-panel-4-keys" title="Permalink to this headline">¶</a></h4>
    6596 <table border="1" class="docutils">
    6597 <colgroup>
    6598 <col width="18%" />
    6599 <col width="82%" />
    6600 </colgroup>
    6601 <thead valign="bottom">
    6602 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6603 <th class="head"><strong>Meaning</strong></th>
    6604 </tr>
    6605 </thead>
    6606 <tbody valign="top">
    6607 <tr class="row-even"><td>PPP/plotCoordinates</td>
    6608 <td>Mountpoint for time series plot [character string]</td>
    6609 </tr>
    6610 <tr class="row-odd"><td>PPP/audioResponse</td>
    6611 <td>Audio response threshold in meters [floating-point number]</td>
    6612 </tr>
    6613 <tr class="row-even"><td>PPP/useOpenStreetMap</td>
    6614 <td>OSM track map [character string: true|false]</td>
    6615 </tr>
    6616 <tr class="row-odd"><td>PPP/useGoogleMap</td>
    6617 <td>Google track map [character string: true|false]</td>
    6618 </tr>
    6619 <tr class="row-even"><td>PPP/mapWinDotSize</td>
    6620 <td>Size of dots on map [integer number: 0-10]</td>
    6621 </tr>
    6622 <tr class="row-odd"><td>PPP/mapWinDotColor</td>
    6623 <td>Color of dots and cross hair on map [character string: red|yellow]</td>
    6624 </tr>
    6625 <tr class="row-even"><td>PPP/mapSpeedSlider</td>
    6626 <td>Offline processing speed for mapping [integer number: 1-100]</td>
    6627 </tr>
    6628 </tbody>
    6629 </table>
    6630 </div>
    6631 <div class="section" id="combine-corrections-panel-keys">
    6632 <span id="index-23"></span><h4>Combine Corrections Panel keys<a class="headerlink" href="#combine-corrections-panel-keys" title="Permalink to this headline">¶</a></h4>
    6633 <table border="1" class="docutils">
    6634 <colgroup>
    6635 <col width="15%" />
    6636 <col width="85%" />
    6637 </colgroup>
    6638 <thead valign="bottom">
    6639 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6640 <th class="head"><strong>Meaning</strong></th>
    6641 </tr>
    6642 </thead>
    6643 <tbody valign="top">
    6644 <tr class="row-even"><td>cmbStreams</td>
    6645 <td>Correction streams table [character string, semicolon separated list, each element in quotation marks, example:&#8221;IGS01 ESA 1.0;IGS03 BKG 1.0&#8221;]</td>
    6646 </tr>
    6647 <tr class="row-odd"><td>cmbMethodFilter</td>
    6648 <td>Combination approach [character string: Single-Epoch|Filter]</td>
    6649 </tr>
    6650 <tr class="row-even"><td>cmbMaxres</td>
    6651 <td>Clock outlier residuum threshold in meters [floating-point number]</td>
    6652 </tr>
    6653 <tr class="row-odd"><td>cmbSampl</td>
    6654 <td>Clock sampling rate [integer number of seconds: 10|20|30|40|50|60]</td>
    6655 </tr>
    6656 <tr class="row-even"><td>cmbUseGlonass</td>
    6657 <td>Use GLONASS in combination [integer number: 0=no,2=yes]</td>
    6658 </tr>
    6659 </tbody>
    6660 </table>
    6661 </div>
    6662 <div class="section" id="upload-corrections-panel-keys">
    6663 <span id="index-24"></span><h4>Upload Corrections Panel keys<a class="headerlink" href="#upload-corrections-panel-keys" title="Permalink to this headline">¶</a></h4>
    6664 <table border="1" class="docutils">
    6665 <colgroup>
    6666 <col width="8%" />
    6667 <col width="92%" />
    6668 </colgroup>
    6669 <thead valign="bottom">
    6670 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6671 <th class="head"><strong>Meaning</strong></th>
    6672 </tr>
    6673 </thead>
    6674 <tbody valign="top">
    6675 <tr class="row-even"><td>uploadMountpointsOut</td>
    6676 <td>Upload corrections table [character string, semicolon separated list, each element in quotation marks, example: &#8220;www.igs-ip.net,2101,IGS01,pass,IGS08,0, /home/user/BNC$[GPSWD}.sp3, /home/user/BNC$[GPSWD}.clk,258,1,0; www.euref-ip.net,2101,EUREF01,pass,ETRF2000,0,,,258,2,0&#8221;]</td>
    6677 </tr>
    6678 <tr class="row-odd"><td>uploadIntr</td>
    6679 <td>Length of SP3 and Clock RINEX file interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]</td>
    6680 </tr>
    6681 <tr class="row-even"><td>uploadSamplRtcmEphCorr</td>
    6682 <td>Orbit corrections stream sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6683 </tr>
    6684 <tr class="row-odd"><td>uploadSamplSp3</td>
    6685 <td>SP3 file sampling rate [integer number of minutes: 0-15]</td>
    6686 </tr>
    6687 <tr class="row-even"><td>uploadSamplClkRnx</td>
    6688 <td>Clock RINEX file sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6689 </tr>
    6690 </tbody>
    6691 </table>
    6692 </div>
    6693 <div class="section" id="custom-trafo-keys">
    6694 <span id="index-25"></span><h4>Custom Trafo keys<a class="headerlink" href="#custom-trafo-keys" title="Permalink to this headline">¶</a></h4>
    6695 <table border="1" class="docutils">
    6696 <colgroup>
    6697 <col width="18%" />
    6698 <col width="82%" />
    6699 </colgroup>
    6700 <thead valign="bottom">
    6701 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6702 <th class="head"><strong>Meaning</strong></th>
    6703 </tr>
    6704 </thead>
    6705 <tbody valign="top">
    6706 <tr class="row-even"><td>trafo_dx</td>
    6707 <td>Translation X in meters [floating-point number]</td>
    6708 </tr>
    6709 <tr class="row-odd"><td>trafo_dy</td>
    6710 <td>Translation Y in meters [floating-point number]</td>
    6711 </tr>
    6712 <tr class="row-even"><td>trafo_dz</td>
    6713 <td>Translation Z in meters [floating-point number]</td>
    6714 </tr>
    6715 <tr class="row-odd"><td>trafo_dxr</td>
    6716 <td>Translation change X in meters per year [floating-point number]</td>
    6717 </tr>
    6718 <tr class="row-even"><td>trafo_dyr</td>
    6719 <td>Translation change Y in meters per year [floating-point number]</td>
    6720 </tr>
    6721 <tr class="row-odd"><td>trafo_dzr</td>
    6722 <td>Translation change Z in meters per year [floating-point number]</td>
    6723 </tr>
    6724 <tr class="row-even"><td>trafo_ox</td>
    6725 <td>Rotation X in arcsec [floating-point number]</td>
    6726 </tr>
    6727 <tr class="row-odd"><td>trafo_oy</td>
    6728 <td>Rotation Y in arcsec [floating-point number]</td>
    6729 </tr>
    6730 <tr class="row-even"><td>trafo_oz</td>
    6731 <td>Rotation Z in arcsec [floating-point number]</td>
    6732 </tr>
    6733 <tr class="row-odd"><td>trafo_oxr</td>
    6734 <td>Rotation change X in arcsec per year [floating-point number]</td>
    6735 </tr>
    6736 <tr class="row-even"><td>trafo_oyr</td>
    6737 <td>Rotation change Y in arcsec per year [floating-point number]</td>
    6738 </tr>
    6739 <tr class="row-odd"><td>trafo_ozr</td>
    6740 <td>Rotation change Z in arcsec per year [floating-point number]</td>
    6741 </tr>
    6742 <tr class="row-even"><td>trafo_sc</td>
    6743 <td>Scale [10^-9, floating-point number]</td>
    6744 </tr>
    6745 <tr class="row-odd"><td>trafo_scr</td>
    6746 <td>Scale change [10^-9 per year, floating-point number]</td>
    6747 </tr>
    6748 <tr class="row-even"><td>trafo_t0</td>
    6749 <td>Reference year [integer number]</td>
    6750 </tr>
    6751 </tbody>
    6752 </table>
    6753 </div>
    6754 <div class="section" id="upload-ephemeris-panel-keys">
    6755 <span id="index-26"></span><h4>Upload Ephemeris Panel keys<a class="headerlink" href="#upload-ephemeris-panel-keys" title="Permalink to this headline">¶</a></h4>
    6756 <table border="1" class="docutils">
    6757 <colgroup>
    6758 <col width="18%" />
    6759 <col width="82%" />
    6760 </colgroup>
    6761 <thead valign="bottom">
    6762 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6763 <th class="head"><strong>Meaning</strong></th>
    6764 </tr>
    6765 </thead>
    6766 <tbody valign="top">
    6767 <tr class="row-even"><td>uploadEphHost</td>
    6768 <td>Broadcaster host, name or IP address [character string]</td>
    6769 </tr>
    6770 <tr class="row-odd"><td>uploadEphPort</td>
    6771 <td>Broadcaster port [integer number]</td>
    6772 </tr>
    6773 <tr class="row-even"><td>uploadEphMountpoint</td>
    6774 <td>Mountpoint [character string]</td>
    6775 </tr>
    6776 <tr class="row-odd"><td>uploadEphPassword</td>
    6777 <td>Stream upload password [character string]</td>
    6778 </tr>
    6779 <tr class="row-even"><td>uploadEphSample</td>
    6780 <td>Stream upload sampling rate [integer number of seconds: 5|10|15|20|25|30|35|40|45|50|55|60]</td>
    6781 </tr>
    6782 </tbody>
    6783 </table>
    6784 </div>
    6785 <div class="section" id="add-stream-keys">
    6786 <span id="index-27"></span><h4>Add Stream keys<a class="headerlink" href="#add-stream-keys" title="Permalink to this headline">¶</a></h4>
    6787 <table border="1" class="docutils">
    6788 <colgroup>
    6789 <col width="18%" />
    6790 <col width="82%" />
    6791 </colgroup>
    6792 <thead valign="bottom">
    6793 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6794 <th class="head"><strong>Meaning</strong></th>
    6795 </tr>
    6796 </thead>
    6797 <tbody valign="top">
    6798 <tr class="row-even"><td>mountPoints</td>
    6799 <td>Mountpoints [character string, semicolon separated list, example:</td>
    6800 </tr>
    6801 <tr class="row-odd"><td><div class="first last line-block">
    6802 <div class="line"><br /></div>
    6803 </div>
    6804 </td>
    6805 <td>&#8220;//user:pass&#64;www.igs-ip.net:2101/FFMJ1 RTCM_3.1 DEU 50.09 8.66 no 2;</td>
    6806 </tr>
    6807 <tr class="row-even"><td><div class="first last line-block">
    6808 <div class="line"><br /></div>
    6809 </div>
    6810 </td>
    6811 <td>//user:pass&#64;www.igs-ip.net:2101/FFMJ2 RTCM_3.1 DEU 50.09 8.66 no 2&#8221;</td>
    6812 </tr>
    6813 <tr class="row-odd"><td>ntripVersion</td>
    6814 <td>Ntrip Version [character string: 1|2|2s|R|U]</td>
    6815 </tr>
    6816 <tr class="row-even"><td>casterUrlList</td>
    6817 <td>Visited Broadcasters [character string, comma separated list]</td>
    6818 </tr>
    6819 </tbody>
    6820 </table>
    6821 </div>
    6822 <div class="section" id="appearance-keys">
    6823 <span id="index-28"></span><h4>Appearance keys<a class="headerlink" href="#appearance-keys" title="Permalink to this headline">¶</a></h4>
    6824 <table border="1" class="docutils">
    6825 <colgroup>
    6826 <col width="18%" />
    6827 <col width="82%" />
    6828 </colgroup>
    6829 <thead valign="bottom">
    6830 <tr class="row-odd"><th class="head"><strong>KeyName</strong></th>
    6831 <th class="head"><strong>Meaning</strong></th>
    6832 </tr>
    6833 </thead>
    6834 <tbody valign="top">
    6835 <tr class="row-even"><td>startTab</td>
    6836 <td>Index of top panel to be presented at start time [integer number: 0-17]</td>
    6837 </tr>
    6838 <tr class="row-odd"><td>statusTab</td>
    6839 <td>Index of bottom panel to be presented at start time [integer number: 0-3]</td>
    6840 </tr>
    6841 <tr class="row-even"><td>font</td>
    6842 <td>Font specification [character string in quotation marks, example: &#8220;Helvetica,14,-1,5,50,0,0,0,0,0&#8221;]</td>
    6843 </tr>
    6844 </tbody>
    6845 </table>
    6846 </div>
    6847 <div class="section" id="example-command-lines">
    6848 <h4>Example command lines<a class="headerlink" href="#example-command-lines" title="Permalink to this headline">¶</a></h4>
    6849 <p>The syntax of some command line configuration options slightly differs from that
     5100<li>Type 1107, Full SBAS pseudo-ranges, carrier phases, Doppler and signal strength (high resolution)<br><br></li>
     5101</ul>
     5102</p>
     5103
     5104<p><h4>3.3 <a name="confList">Command Line Help</h3></p>
     5105
     5106<p>
     5107Command line option '--help' provides a complete list of all configuration parameters which can be specified via BNC's Command Line Interface (CLI). Note that command line options overrule configuration options specified in the configuration file. The following is the output produced when running BNC with command line option '--help':
     5108</p>
     5109<pre>
     5110<b>Usage:</b>
     5111   bnc --help (MS Windows: bnc.exe --help | more)
     5112       --nw
     5113       --version (MS Windows: bnc.exe --version | more)
     5114       --display {name}
     5115       --conf {confFileName}
     5116       --file {rawFileName}
     5117       --key  {keyName} {keyValue}
     5118
     5119<b>Network Panel keys:</b>
     5120   proxyHost       {Proxy host, name or IP address [character string]}
     5121   proxyPort       {Proxy port [integer number]}
     5122   sslCaCertPath   {Full path to SSL certificates [character string]}
     5123   sslIgnoreErrors {Ignore SSL authorization errors [integer number: 0=no,2=yes]}
     5124
     5125<b>General Panel keys:</b>
     5126   logFile          {Logfile, full path [character string]}
     5127   rnxAppend        {Append files [integer number: 0=no,2=yes]}
     5128   onTheFlyInterval {Configuration reload interval [character string: 1 day|1 hour|5 min|1 min]}
     5129   autoStart        {Auto start [integer number: 0=no,2=yes]}
     5130   rawOutFile       {Raw output file, full path [character string]}
     5131
     5132<b>RINEX Observations Panel keys:</b>
     5133   rnxPath        {Directory [character string]}
     5134   rnxIntr        {File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]}
     5135   rnxSampl       {File sampling rate [integer number of seconds: 0,5|10|15|20|25|30|35|40|45|50|55|60]}
     5136   rnxSkel        {RINEX skeleton file extension [character string]}
     5137   rnxOnlyWithSKL {Using RINEX skeleton file is mandatory [integer number: 0=no,2=yes]}
     5138   rnxScript      {File upload script, full path [character string]}
     5139   rnxV2Priority  {Priority of signal attributes [character string, list separated by blank character, example: G:CWPX_? R:CP]}
     5140   rnxV3          {Produce version 3 file content [integer number: 0=no,2=yes]}
     5141   rnxV3filenames {Produce version 3 filenames [integer number: 0=no,2=yes]}
     5142
     5143<b>RINEX Ephemeris Panel keys:</b>
     5144   ephPath        {Directory [character string]}
     5145   ephIntr        {File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]}
     5146   ephOutPort     {Output port [integer number]}
     5147   ephV3          {Produce version 3 file content [integer number: 0=no,2=yes]}
     5148   ephV3filenames {Produce version 3 filenames [integer number: 0=no,2=yes]}
     5149
     5150<b>RINEX Editing and QC Panel keys:</b>
     5151   reqcAction            {Action specification [character string:  Blank|Edit/Concatenate|Analyze]}
     5152   reqcObsFile           {Input observations file(s), full path [character string, comma separated list in quotation marks]}
     5153   reqcNavFile           {Input navigation file(s), full path [character string, comma separated list in quotation marks]}
     5154   reqcOutObsFile        {Output observations file, full path [character string]}
     5155   reqcOutNavFile        {Output navigation file, full path [character string]}
     5156   reqcOutLogFile        {Output logfile, full path [character string]}
     5157   reqcLogSummaryOnly    {Output only summary of logfile [integer number: 0=no,2=yes]}
     5158   reqcSkyPlotSignals    {Observation signals [character string, list separated by blank character, example: C:2&7 E:1&5 G:1&2 J:1&2 R:1&2 S:1&5]}
     5159   reqcPlotDir           {QC plots directory [character string]}
     5160   reqcRnxVersion        {RINEX version [integer number: 2|3]}
     5161   reqcSampling          {RINEX output file sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]}
     5162   reqcV2Priority        {Version 2 priority of signal attributes [character string, list separated by blank character, example: G:CWPX_? R:CP]}
     5163   reqcStartDateTime     {Start time [character string, example: 1967-11-02T00:00:00]}
     5164   reqcEndDateTime       {Stop time [character string, example: 2099-01-01T00:00:00 }
     5165   reqcRunBy             {Operators name [character string]}
     5166   reqcUseObsTypes       {Use observation types [character string, list separated by blank character, example: G:C1C G:L1C R:C1C RC1P]}
     5167   reqcComment           {Additional comments [character string]}
     5168   reqcOldMarkerName     {Old marker name [character string]}
     5169   reqcNewMarkerName     {New marker name [character string]}
     5170   reqcOldAntennaName    {Old antenna name [character string]}
     5171   reqcNewAntennaName    {New antenna name [character string]}
     5172   reqcOldAntennaNumber  {Old antenna number [character string]}
     5173   reqcNewAntennaNumber  {New antenna number [character string]}
     5174   reqcOldAntennadN      {Old north eccentricity [character string]}
     5175   reqcNewAntennadN      {New north eccentricity [character string]}
     5176   reqcOldAntennadE      {Old east eccentricity [character string]}
     5177   reqcNewAntennadE      {New east eccentricity [character string]}
     5178   reqcOldAntennadU      {Old up eccentricity [character string]}
     5179   reqcNewAntennadU      {New up eccentricity [character string]}
     5180   reqcOldReceiverName   {Old receiver name [character string]}
     5181   reqcNewReceiverName   {New receiver name [character string]}
     5182   reqcOldReceiverNumber {Old receiver number [character string]}
     5183   reqcNewReceiverNumber {New receiver number [character string]}
     5184
     5185<b>SP3 Comparison Panel keys:</b>
     5186   sp3CompFile       {SP3 input files, full path [character string, comma separated list in quotation marks]}
     5187   sp3CompExclude    {Satellite exclusion list [character string, comma separated list in quotation marks, example: G04,G31,R]}
     5188   sp3CompOutLogFile {Output logfile, full path [character string]}
     5189
     5190<b>Broadcast Corrections Panel keys:</b>
     5191   corrPath {Directory for saving files in ASCII format [character string]}
     5192   corrIntr {File interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]}
     5193   corrPort {Output port [integer number]}
     5194
     5195<b>Feed Engine Panel keys:</b>
     5196   outPort  {Output port, synchronized [integer number]}
     5197   outWait  {Wait for full observation epoch [integer number of seconds: 1-30]}
     5198   outSampl {Sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]}
     5199   outFile  {Output file, full path [character string]}
     5200   outUPort {Output port, unsynchronized [integer number]}
     5201
     5202<b>Serial Output Panel keys:</b>
     5203   serialMountPoint         {Mountpoint [character string]}
     5204   serialPortName           {Port name [character string]}
     5205   serialBaudRate           {Baud rate [integer number: 110|300|600|1200|2400|4800|9600|19200|38400|57600|115200]}
     5206   serialFlowControl        {Flow control [character string: OFF|XONXOFF|HARDWARE}
     5207   serialDataBits           {Data bits [integer number: 5|6|7|8]}
     5208   serialParity             {Parity [character string: NONE|ODD|EVEN|SPACE]}
     5209   serialStopBits           {Stop bits [integer number: 1|2]}
     5210   serialAutoNMEA           {NMEA specification [character string: no|Auto|Manual GPGGA|Manual GNGGA]}
     5211   serialFileNMEA           {NMEA filename, full path [character string]}
     5212   serialHeightNMEA         {Height [floating-point number]}
     5213   serialHeightNMEASampling {Sampling rate [integer number of seconds: 0|10|20|30|...|280|290|300]}
     5214
     5215<b>Outages Panel keys:</b>
     5216   adviseObsRate {Stream observation rate [character string: 0.1 Hz|0.2 Hz|0.5 Hz|1 Hz|5 Hz]}
     5217   adviseFail    {Failure threshold [integer number of minutes: 0-60]}
     5218   adviseReco    {Recovery threshold [integer number of minutes: 0-60]}
     5219   adviseScript  {Advisory script, full path [character string]}
     5220
     5221<b>Miscellaneous Panel keys:</b>
     5222   miscMount    {Mountpoint [character string]}
     5223   miscIntr     {Interval for logging latency [character string: Blank|2 sec|10 sec|1 min|5 min|15 min|1 hour|6 hours|1 day]}
     5224   miscScanRTCM {Scan for RTCM message numbers [integer number: 0=no,2=yes]}
     5225   miscPort     {Output port [integer number]}
     5226
     5227<b>PPP Client Panel 1 keys:</b>
     5228   PPP/dataSource  {Data source [character string: Blank|Real-Time Streams|RINEX Files]}
     5229   PPP/rinexObs    {RINEX observation file, full path [character string]}
     5230   PPP/rinexNav    {RINEX navigation file, full path [character string]}
     5231   PPP/corrMount   {Corrections mountpoint [character string]}
     5232   PPP/corrFile    {Corrections file, full path [character string]}
     5233   PPP/antexFile   {ANTEX file, full path [character string]}
     5234   PPP/crdFile     {Coordinates file, full path [character string]}
     5235   PPP/v3filenames {Produce version 3 filenames, [integer number: 0=no,2=yes]}
     5236   PPP/logPath     {Directory for PPP log files [character string]}
     5237   PPP/nmeaPath    {Directory for NMEA output files [character string]}
     5238   PPP/snxtroPath  {Directory for SINEX troposphere output files [character string]}
     5239   PPP/snxtroIntr  {SINEX troposphere file interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]}
     5240   PPP/snxtroSampl {SINEX troposphere file sampling rate [integer number of seconds: 0|30|60|90|120|150|180|210|240|270|300]}
     5241   PPP/snxtroAc    {SINEX troposphere Analysis Center [character string]}
     5242   PPP/snxtroSol   {SINEX troposphere solution ID [character string]}
     5243
     5244<b>PPP Client Panel 2 keys:</b>
     5245   PPP/staTable {Station specifications table [character string, semicolon separated list, each element in quotation marks, example:
     5246                "FFMJ1,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7777;CUT07,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7778"]}
     5247
     5248<b>PPP Client Panel 3 keys:</b>
     5249   PPP/lcGPS        {Select linear combination from GPS code or phase data [character string; P3|P3&L3]}
     5250   PPP/lcGLONASS    {Select linear combination from GLONASS code or phase data [character string: no|P3|L3|P3&L3]}
     5251   PPP/lcGalileo    {Select linear combination from Galileo code or phase data [character string: no|P3|L3|P3&L3]}
     5252   PPP/lcBDS        {Select linear combination from BDS code or phase data [character string: no|P3|L3|P3&L3]}
     5253   PPP/sigmaC1      {Sigma for code observations in meters [floating-point number]}
     5254   PPP/sigmaL1      {Sigma for phase observations in meters [floating-point number]}
     5255   PPP/maxResC1     {Maximal residuum for code observations in meters [floating-point number]}
     5256   PPP/maxResL1     {Maximal residuum for phase observations in meters [floating-point number]}
     5257   PPP/eleWgtCode   {Elevation dependent waiting of code observations [integer number: 0=no,2=yes]}
     5258   PPP/eleWgtPhase  {Elevation dependent waiting of phase observations [integer number: 0=no,2=yes]}
     5259   PPP/minObs       {Minimum number of observations [integer number: 4|5|6]}
     5260   PPP/minEle       {Minimum satellite elevation in degrees [integer number: 0-20]}
     5261   PPP/corrWaitTime {Wait for clock corrections [integer number of seconds: no|1-20]}
     5262   PPP/seedingTime  {Seeding time span for Quick Start [integer number of seconds]}
     5263
     5264<b>PPP Client Panel 4 keys:</b>
     5265   PPP/plotCoordinates  {Mountpoint for time series plot [character string]}
     5266   PPP/audioResponse    {Audio response threshold in meters [floating-point number]}
     5267   PPP/useOpenStreetMap {OSM track map [character string: true|false]}
     5268   PPP/useGoogleMap     {Google track map [character string: true|false]}
     5269   PPP/mapWinDotSize    {Size of dots on map [integer number: 0-10]}
     5270   PPP/mapWinDotColor   {Color of dots and cross hair on map [character string: red|yellow]}
     5271   PPP/mapSpeedSlider   {Offline processing speed for mapping [integer number: 1-100]}
     5272
     5273<b>Combine Corrections Panel keys:</b>
     5274   cmbStreams      {Correction streams table [character string, semicolon separated list, each element in quotation marks, example:
     5275                   "IGS01 ESA 1.0;IGS03 BKG 1.0"]}
     5276   cmbMethodFilter {Combination approach [character string: Single-Epoch|Filter]
     5277   cmbMaxres       {Clock outlier residuum threshold in meters [floating-point number]
     5278   cmbSampl        {Clock sampling rate [integer number of seconds: 10|20|30|40|50|60]}
     5279   cmbUseGlonass   {Use GLONASS in combination [integer number: 0=no,2=yes]
     5280
     5281<b>Upload Corrections Panel keys:</b>
     5282   uploadMountpointsOut   {Upload corrections table [character string, semicolon separated list, each element in quotation marks, example:
     5283                          "www.igs-ip.net,2101,IGS01,pass,IGS08,0,/home/user/BNC$[GPSWD}.sp3,/home/user/BNC$[GPSWD}.clk,258,1,0;
     5284                           www.euref-ip.net,2101,EUREF01,pass,ETRF2000,0,,,258,2,0"]}
     5285   uploadIntr             {Length of SP3 and Clock RINEX file interval [character string: 1 min|2 min|5 min|10 min|15 min|30 min|1 hour|1 day]}
     5286   uploadSamplRtcmEphCorr {Orbit corrections stream sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]}
     5287   uploadSamplSp3         {SP3 file sampling rate [integer number of minutes: 0-15]}
     5288   uploadSamplClkRnx      {Clock RINEX file sampling rate [integer number of seconds: 0|5|10|15|20|25|30|35|40|45|50|55|60]}
     5289
     5290<b>Custom Trafo keys:</b>
     5291   trafo_dx  {Translation X in meters [floating-point number]
     5292   trafo_dy  {Translation Y in meters [floating-point number]
     5293   trafo_dz  {Translation Z in meters [floating-point number]
     5294   trafo_dxr {Translation change X in meters per year [floating-point number]
     5295   trafo_dyr {Translation change Y in meters per year [floating-point number]
     5296   trafo_dzr {Translation change Z in meters per year [floating-point number]
     5297   trafo_ox  {Rotation X in arcsec [floating-point number]}
     5298   trafo_oy  {Rotation Y in arcsec [floating-point number]}
     5299   trafo_oz  {Rotation Z in arcsec [floating-point number]}
     5300   trafo_oxr {Rotation change X in arcsec per year [floating-point number]}
     5301   trafo_oyr {Rotation change Y in arcsec per year [floating-point number]}
     5302   trafo_ozr {Rotation change Z in arcsec per year [floating-point number]}
     5303   trafo_sc  {Scale [10^-9, floating-point number]}
     5304   trafo_scr {Scale change [10^-9 per year, floating-point number]}
     5305   trafo_t0  {Reference year [integer number]}
     5306
     5307<b>Upload Ephemeris Panel keys:</b>
     5308   uploadEphHost       {Broadcaster host, name or IP address [character string]}
     5309   uploadEphPort       {Broadcaster port [integer number]}
     5310   uploadEphMountpoint {Mountpoint [character string]}
     5311   uploadEphPassword   {Stream upload password [character string]}
     5312   uploadEphSample     {Stream upload sampling rate [integer number of seconds: 5|10|15|20|25|30|35|40|45|50|55|60]}
     5313
     5314<b>Add Stream keys:</b>
     5315   mountPoints   {Mountpoints [character string, semicolon separated list, example:
     5316                 "//user:pass@www.igs-ip.net:2101/FFMJ1 RTCM_3.1 DEU 50.09 8.66 no 2;
     5317                 //user:pass@www.igs-ip.net:2101/FFMJ2 RTCM_3.1 DEU 50.09 8.66 no 2"}
     5318   ntripVersion  {Ntrip Version [character string: 1|2|2s|R|U]}
     5319   casterUrlList {Visited Broadcasters [character string, comma separated list]}
     5320
     5321<b>Appearance keys:</b>
     5322   startTab  {Index of top panel to be presented at start time [integer number: 0-17]}
     5323   statusTab {Index of bottom panel to be presented at start time [integer number: 0-3]}
     5324   font      {Font specification [character string in quotation marks, example: "Helvetica,14,-1,5,50,0,0,0,0,0"]}
     5325
     5326<b>Note:</b>
     5327The syntax of some command line configuration options slightly differs from that
    68505328used in configuration files: Configuration file options which contain one or more
    68515329blank characters or contain a semicolon separated parameter list must be enclosed
    6852 by quotation marks when specified on command line.</p>
    6853 <ol class="arabic simple">
    6854 <li><code class="docutils literal"><span class="pre">/home/weber/bin/bnc</span></code></li>
    6855 <li><code class="docutils literal"><span class="pre">/Applications/bnc.app/Contents/MacOS/bnc</span></code></li>
    6856 <li><code class="docutils literal"><span class="pre">/home/weber/bin/bnc</span> <span class="pre">--conf</span> <span class="pre">/home/weber/MyConfigFile.bnc</span></code></li>
    6857 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--conf</span> <span class="pre">/Users/weber/.config/BKG/BNC.bnc</span> <span class="pre">-nw</span></code></li>
    6858 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--conf</span> <span class="pre">/dev/null</span> <span class="pre">--key</span> <span class="pre">startTab</span> <span class="pre">4</span> <span class="pre">--key</span> <span class="pre">reqcAction</span> <span class="pre">Edit/Concatenate</span> <span class="pre">--key</span> <span class="pre">reqcObsFile</span> <span class="pre">AGAR.15O</span> <span class="pre">--key</span> <span class="pre">reqcOutObsFile</span> <span class="pre">AGAR_X.15O</span> <span class="pre">--key</span> <span class="pre">reqcRnxVersion</span> <span class="pre">2</span> <span class="pre">--key</span> <span class="pre">reqcSampling</span> <span class="pre">30</span> <span class="pre">--key</span> <span class="pre">reqcV2Priority</span> <span class="pre">CWPX_?</span></code></li>
    6859 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--key</span> <span class="pre">mountPoints</span> <span class="pre">&quot;//user:pass&#64;mgex.igs-ip.net:2101/CUT07</span> <span class="pre">RTCM_3.0</span> <span class="pre">ETH</span> <span class="pre">9.03</span> <span class="pre">38.74</span> <span class="pre">no</span> <span class="pre">2;//user:pass&#64;www.igs-ip.net:2101/FFMJ1</span> <span class="pre">RTCM_3.1</span> <span class="pre">DEU</span> <span class="pre">50.09</span> <span class="pre">8.66</span> <span class="pre">no</span> <span class="pre">2&quot;</span></code></li>
    6860 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--key</span> <span class="pre">cmbStreams</span> <span class="pre">&quot;CLK11</span> <span class="pre">BLG</span> <span class="pre">1.0;CLK93</span> <span class="pre">CNES</span> <span class="pre">1.0&quot;</span></code></li>
    6861 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--key</span> <span class="pre">uploadMountpointsOut</span> <span class="pre">&quot;products.igs-ip.net,98756,TEST,</span> <span class="pre">letmein,IGS08,2,/Users/weber/BNC${GPSWD}.clk,,33,3,2;</span> <span class="pre">www.euref-ip.net,333,TEST2,aaaaa,NAD83,2,,,33,5,5&quot;</span></code></li>
    6862 <li><code class="docutils literal"><span class="pre">bnc</span> <span class="pre">--key</span> <span class="pre">PPP/staTable</span> <span class="pre">&quot;FFMJ1,100.0,100.0,100.0,100.0,100.0,100.0,</span> <span class="pre">0.1,3e-6,7777;CUT07,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,</span> <span class="pre">7778&quot;</span></code></li>
    6863 </ol>
    6864 </div>
    6865 </div>
    6866 <div class="section" id="further-reading">
    6867 <span id="index-29"></span><h3>Further Reading<a class="headerlink" href="#further-reading" title="Permalink to this headline">¶</a></h3>
    6868 <table border="1" class="docutils">
    6869 <colgroup>
    6870 <col width="53%" />
    6871 <col width="47%" />
    6872 </colgroup>
    6873 <tbody valign="top">
    6874 <tr class="row-odd"><td>Ntrip</td>
    6875 <td><a class="reference external" href="http://igs.bkg.bund.de/ntrip/index">http://igs.bkg.bund.de/ntrip/index</a></td>
    6876 </tr>
    6877 <tr class="row-even"><td>EUREF-IP Ntrip Broadcaster</td>
    6878 <td><a class="reference external" href="http://www.euref-ip.net/home">http://www.euref-ip.net/home</a></td>
    6879 </tr>
    6880 <tr class="row-odd"><td>IGS-IP Ntrip Broadcaster</td>
    6881 <td><a class="reference external" href="http://www.igs-ip.net/home">http://www.igs-ip.net/home</a></td>
    6882 </tr>
    6883 <tr class="row-even"><td>IGS products Ntrip Broadcaster</td>
    6884 <td><a class="reference external" href="http://products.igs-ip.net/home">http://products.igs-ip.net/home</a></td>
    6885 </tr>
    6886 <tr class="row-odd"><td>IGS M-GEX Ntrip Broadcaster</td>
    6887 <td><a class="reference external" href="http://mgex.igs-ip.net/home">http://mgex.igs-ip.net/home</a></td>
    6888 </tr>
    6889 <tr class="row-even"><td>IGS Central Bureau Ntrip Broadcaster</td>
    6890 <td><a class="reference external" href="http://rt.igs.org">http://rt.igs.org</a></td>
    6891 </tr>
    6892 <tr class="row-odd"><td>IGS Real-time Service</td>
    6893 <td><a class="reference external" href="http://rts.igs.org">http://rts.igs.org</a></td>
    6894 </tr>
    6895 <tr class="row-even"><td>Distribution of IGS-IP streams</td>
    6896 <td><a class="reference external" href="http://www.igs.oma.be/real_time">http://www.igs.oma.be/real_time</a></td>
    6897 </tr>
    6898 <tr class="row-odd"><td>Completeness and latency of IGS-IP data</td>
    6899 <td><a class="reference external" href="http://www.igs.oma.be/highrate/">http://www.igs.oma.be/highrate/</a></td>
    6900 </tr>
    6901 <tr class="row-even"><td>Ntrip Broadcaster overview</td>
    6902 <td><a class="reference external" href="http://www.rtcm-ntrip.org/home">http://www.rtcm-ntrip.org/home</a></td>
    6903 </tr>
    6904 <tr class="row-odd"><td>Ntrip Open Source software code</td>
    6905 <td><a class="reference external" href="http://software.rtcm-ntrip.org">http://software.rtcm-ntrip.org</a></td>
    6906 </tr>
    6907 <tr class="row-even"><td>EUREF-IP Project</td>
    6908 <td><a class="reference external" href="http://www.epncb.oma.be/euref_IP">http://www.epncb.oma.be/euref_IP</a></td>
    6909 </tr>
    6910 <tr class="row-odd"><td>Radio Technical Commission for Maritime
    6911 Services</td>
    6912 <td><a class="reference external" href="http://www.rtcm.org">http://www.rtcm.org</a></td>
    6913 </tr>
    6914 </tbody>
     5330by quotation marks when specified on command line.
     5331
     5332<b>Example command lines:</b>
     5333(1) /home/weber/bin/bnc
     5334(2) /Applications/bnc.app/Contents/MacOS/bnc
     5335(3) /home/weber/bin/bnc --conf /home/weber/MyConfigFile.bnc
     5336(4) bnc --conf /Users/weber/.config/BKG/BNC.bnc -nw
     5337(5) bnc --conf /dev/null --key startTab 4 --key reqcAction Edit/Concatenate --key reqcObsFile AGAR.15O --key reqcOutObsFile AGAR_X.15O
     5338        --key reqcRnxVersion 2 --key reqcSampling 30 --key reqcV2Priority CWPX_?
     5339(6) bnc --key mountPoints "//user:pass@mgex.igs-ip.net:2101/CUT07 RTCM_3.0 ETH 9.03 38.74 no 2;
     5340                           //user:pass@www.igs-ip.net:2101/FFMJ1 RTCM_3.1 DEU 50.09 8.66 no 2"
     5341(7) bnc --key cmbStreams "CLK11 BLG 1.0;CLK93 CNES 1.0"
     5342(8) bnc --key uploadMountpointsOut "products.igs-ip.net,98756,TEST,letmein,IGS08,2,/Users/weber/BNC${GPSWD}.clk,,33,3,2;
     5343                                    www.euref-ip.net,333,TEST2,aaaaa,NAD83,2,,,33,5,5"
     5344(9) bnc --key PPP/staTable "FFMJ1,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7777;
     5345                            CUT07,100.0,100.0,100.0,100.0,100.0,100.0,0.1,3e-6,7778"
     5346</pre>
     5347<p><h4>3.4 <a name="links">Further Reading</h3></p>
     5348
     5349<table>
     5350<tr></tr>
     5351<tr><td><b>Links</b></td></tr>
     5352<tr><td>Ntrip &nbsp;</td><td><u>http://igs.bkg.bund.de/ntrip/index</u></td></tr>
     5353<tr><td>EUREF-IP Ntrip Broadcaster &nbsp;</td><td><u>http://www.euref-ip.net/home</u></td></tr>
     5354<tr><td>IGS-IP Ntrip Broadcaster &nbsp;</td><td><u>http://www.igs-ip.net/home</u></td></tr>
     5355<tr><td>IGS products Ntrip Broadcaster &nbsp;</td><td><u>http://products.igs-ip.net/home</u></td></tr>
     5356<tr><td>IGS M-GEX Ntrip Broadcaster &nbsp;</td><td><u>http://mgex.igs-ip.net/home</u></td></tr>
     5357<tr><td>IGS Central Bureau Ntrip Broadcaster &nbsp;</td><td><u>http://rt.igs.org</u></td></tr>
     5358<tr><td>IGS Real-time Service &nbsp;</td><td><u>http://rts.igs.org</u></td></tr>
     5359<tr><td>Distribution of IGS-IP streams &nbsp;</td><td><u>http://www.igs.oma.be/real_time/</u></td></tr>
     5360<tr><td>Completeness and latency of IGS-IP data &nbsp;</td><td><u>http://www.igs.oma.be/highrate/</u></td></tr>
     5361<tr><td>Ntrip Broadcaster overview &nbsp;</td><td><u>http://www.rtcm-ntrip.org/home</u></td></tr>
     5362<tr><td>Ntrip Open Source software code &nbsp;</td><td><u>http://software.rtcm-ntrip.org</u></td></tr>
     5363<tr><td>EUREF-IP Project &nbsp;</td><td><u>http://www.epncb.oma.be/euref_IP</u></td></tr>
     5364<tr><td>Real-time IGS Pilot Project &nbsp;</td><td><u>http://www.rtigs.net/pilot</u></td></tr>
     5365<tr><td>Radio Technical Commission<br>for Maritime Services &nbsp;</td><td><u>http://www.rtcm.org</u>
    69155366</table>
    6916 </div>
    6917 </div>
    6918 </div>
    6919 <p id="bibtex-bibliography-bnchelp-0"></p>
    6920 </div>
    6921 
    6922 
    6923           </div>
    6924         </div>
    6925       </div>
    6926       <div class="clearer"></div>
    6927     </div>
    6928     <div class="related" role="navigation" aria-label="related navigation">
    6929       <h3>Navigation</h3>
    6930       <ul>
    6931         <li class="nav-item nav-item-0"><a href="bnchelp.html#document-bnchelp">BNC 2.13 documentation</a> &#187;</li>
    6932       </ul>
    6933     </div>
    6934     <div class="footer" role="contentinfo">
    6935         &#169; Copyright 2016, Weber, G., Mervart, L., Stuerze, A., Ruelke, A., Stoecker, D..
    6936       Created using <a href="http://sphinx-doc.org/">Sphinx</a> 1.4.6.
    6937     </div>
    6938   </body>
    6939 </html>
     5367
     5368<br>
     5369<table>
     5370<tr><td><b>Publications</b></td></tr>
     5371
     5372<tr><td>Caissy, M., L. Agrotis, G. Weber, M. Hernandez-Pajares and U. Hugentobler (2012)</td><td>The International GNSS Real-Time Service. GPS World, June 1, 2012.</td></tr>
     5373
     5374<tr><td>Estey, L. H. and C. M. Meertens (1999)</td><td>TEQC: The Multi-Purpose Toolkit for GPS/GLONASS Data. GPS Solutions, Vol. 3, No. 1, pp. 42-49, 1999.</td></tr>
     5375
     5376<tr><td>Huisman, L., P. Teunissen and C. Hu (2012)</td><td>GNSS Precise Point Positioning in Regional Reference Frames Using Real-time Broadcast Corrections. Journal of Applied Geodesy, Vol. 6, pp15-23, 2012.</td></tr>
     5377
     5378<tr><td>Mervart, L., Z. Lukes, C. Rocken and T. Iwabuchi (2008)</td><td>Precise Point Positioning With Ambiguity Resolution in Real-Time. ION GNSS 2008.</td></tr>
     5379
     5380<tr><td>RTCM SC-104 (2011)</td><td>Amendment 1 to RTCM Standard 10410.1 Networked Transport of RTCM via Internet Protocol (Ntrip) - Version 2.0. RTCM Papter 139-2011-SC104-STD, 2011.</td></tr>
     5381
     5382<tr><td>Rupprecht, W. (2000)</td><td>DGPS-IP. <u>http://www.wsrcc.com/wolfgang/gps/dgps-ip.html</u>, 2000.</td></tr>
     5383
     5384<tr><td>Weber, G., D. Dettmering and H. Gebhard (2005a)</td><td>Networked Transport of RTCM via Internet Protocol (NTRIP). In: Sanso F. (Ed.): A Window on the Future, Proceedings of the IAG General Assembly, Sapporo, Japan, 2003, Springer Verlag, Symposia Series, Vol. 128, p. 60-64, 2005.</td></tr>
     5385
     5386<tr><td>Weber, G., D. Dettmering, H. Gebhard and R. Kalafus (2005b)</td><td>Networked Transport of RTCM via Internet Protocol (Ntrip), IP-Streaming for Real-Time GNSS Applications. ION GNSS 2005.</td></tr>
     5387
     5388<tr><td>Weber, G., and M. Honkala (2004)</td><td>The future is talking Ntrip. Newsletter, Trimble GmbH Raunheim, Germany, 2004.</td></tr>
     5389
     5390<tr><td>Weber, G. and L. Mervart (2009)</td><td>The BKG Ntrip Client (BNC), Report on EUREF Symposium 2007 in London. Mitteilungen des Bundesamtes fuer Kartographie und Geodaesie, Band 42, Frankfurt, 2009.</td></tr>
     5391
     5392<tr><td>Weber, G. and L. Mervart (2010)</td><td>Real-time Combination of GNSS Orbit and Clock Correction Streams Using a Kalman Filter Approach. ION GNSS 2010.</td></tr>
     5393
     5394<tr><td>Weber, G, L. Mervart, Z. Lukes, C. Rocken and J. Dousa (2007)</td><td>Real-time Clock and Orbit Corrections for Improved Point Positioning via Ntrip. ION GNSS 2007.</td></tr>
     5395
     5396<tr><td>Weber, G., L. Mervart, A. St&uuml;rze, A. R&uuml;lke and D. St&ouml;cker (2016)</td><td>BKG Ntrip Client, Version 2.12. Mitteilungen des Bundesamtes f&uuml;r Kartographie und Geod&auml;sie, Vol. 49, Frankfurt am Main, 2016.</td><tr>
     5397
     5398</table>
     5399
     5400<p><h4>3.5 <a name="abbrev">Abbreviations</h3></p>
     5401<table>
     5402
     5403<tr><td>AC</td><td>Analysis Center</td></tr>
     5404<tr><td>AFREF</td><td>IAG Reference Frame Sub-Commission for Africa</td></tr>
     5405<tr><td>ANTEX</td><td>Antenna Exchange Format</td></tr>
     5406<tr><td>APC</td><td>Antenna Phase Center</td></tr>
     5407<tr><td>APREF</td><td>IAG Reference Frame Sub-Commission for Asia and Pacific</td></tr>
     5408<tr><td>ARP</td><td>Antenna Reference Point</td></tr>
     5409<tr><td>BKG</td><td>Bundesamt f&uuml;r Kartographie und  Geod&auml;sie</td></tr>
     5410<tr><td>BNC</td><td>BNK Ntrip Client</td></tr>
     5411<tr><td>BSW</td><td>Bernese GNSS Software</td></tr>
     5412<tr><td>CC</td><td>Combination Center</td></tr>
     5413<tr><td>CLI</td><td>Command Line Interface</td></tr>
     5414<tr><td>CoM</td><td>Center Of Mass</td></tr>
     5415<tr><td>DGNSS</td><td>Differential GNSS</td></tr>
     5416<tr><td>DGPS-IP</td><td>Differential GPS via Internet Protocol</td></tr>
     5417<tr><td>DMG</td><td>Disk Image, File</td></tr>
     5418<tr><td>DREF91</td><td>Geodetic Datum for Germany 1991</td></tr>
     5419<tr><td>ECEF</td><td>Earth-Centred-Earth-Fixed</td></tr>
     5420<tr><td>EDGE</td><td>Enhanced Data Rates for GSM Evolution</td></tr>
     5421<tr><td>ETRF2000</td><td>European Terrestrial Reference Frame 2000</td></tr>
     5422<tr><td>EUREF</td><td>IAG Reference Frame Sub-Commission for Europe</td></tr>
     5423<tr><td>EoE</td><td>End of Epoch</td></tr>
     5424<tr><td>FKP</td><td>Fl&auml;chen-Korrektur-Parameter</td></tr>
     5425<tr><td>FTP</td><td>File Transfer Protocol</td></tr>
     5426<tr><td>GDA94</td><td>Geodetic Datum Australia 1994</td></tr>
     5427<tr><td>GM</td><td>Google Maps</td></tr>
     5428<tr><td>GNSS</td><td>Global Navigation Satellite System</td></tr>
     5429<tr><td>GNU</td><td>GNU's Not Unix</td></tr>
     5430<tr><td>GPL</td><td>General Public License</td></tr>
     5431<tr><td>GPRS</td><td>General Packet Radio Service</td></tr>
     5432<tr><td>GPSWD</td><td>GPS Week and Day</td></tr>
     5433<tr><td>GSM</td><td>Global System for Mobile Communications</td></tr>
     5434<tr><td>GUI</td><td>Graphical User Interface</td></tr>
     5435<tr><td>HP MSM</td><td>High Precision Multiple Signal Messages</td></tr>
     5436<tr><td>HR URA</td><td>High Rate User Range Accuracy</td></tr>
     5437<tr><td>HTTP</td><td>Hypertext Transfer Protocol</td></tr>
     5438<tr><td>HTTPS</td><td>Hypertext Transfer Protocol Secure</td></tr>
     5439<tr><td>IAG</td><td>International Association of Geodesy</td></tr>
     5440<tr><td>ICECAST</td><td>Streaming Media Server</td></tr>
     5441<tr><td>IGS08</td><td>IGS Reference Frame 2008</td></tr>
     5442<tr><td>IGS</td><td>International GNSS Service</td></tr>
     5443<tr><td>IOD</td><td>Issue of Data</td></tr>
     5444<tr><td>IP</td><td>Internet Protocol</td></tr>
     5445<tr><td>ITRF2008</td><td>International Terrestrial Reference Frame 2008</td></tr>
     5446<tr><td>L3</td><td>Ionosphere-Free Linear Combination Of Phase Observations</td></tr>
     5447<tr><td>LAN</td><td>Local Area Network</td></tr>
     5448<tr><td>LC</td><td>Linea Combination</td></tr>
     5449<tr><td>M-GEX</td><td>Multi GNSS-Experiment</td></tr>
     5450<tr><td>MAC</td><td>Master Auxiliary Concept</td></tr>
     5451<tr><td>MJD</td><td>Modified Julian Date</td></tr>
     5452<tr><td>MSI</td><td>Microsoft Installer, File</td></tr>
     5453<tr><td>MSM</td><td>Multiple Signal Messages</td></tr>
     5454<tr><td>MW</td><td>Melbourne W&uuml;bbena Linear Combination</td></tr>
     5455<tr><td>NAD83</td><td>North American Datum 1983</td></tr>
     5456<tr><td>NAREF</td><td>IAG Reference Frame Sub-Commission for North America</td></tr>
     5457<tr><td>NMEA</td><td>National Marine Electronics Association Format</td></tr>
     5458<tr><td>Ntrip</td><td>Networked Transport of RTCM via Internet Protocol</td></tr>
     5459<tr><td>OSM</td><td>OpenStreetMap</td></tr>
     5460<tr><td>OSR</td><td>Observation Space Representation</td></tr>
     5461<tr><td>P3</td><td>Ionosphere-Free Linear Combination Of Code Observations</td></tr>
     5462<tr><td>PDOP</td><td>Positional Dilution Of Precision</td></tr>
     5463<tr><td>PNG</td><td>Portable Network Graphics</td></tr>
     5464<tr><td>PPP</td><td>Precise Point Positioning</td></tr>
     5465<tr><td>Qt</td><td>Cross-Platform Application Framework</td></tr>
     5466<tr><td>REQC</td><td>RINEX Editing and Quality Checking</td></tr>
     5467<tr><td>RINEX</td><td>Receiver Independent Exchange Format</td></tr>
     5468<tr><td>RTCM SC-104</td><td>Radio Technical Commission for Maritime Services, Special Committee 104</td></tr>
     5469<tr><td>RTK</td><td>Real Time Kinematic</td></tr>
     5470<tr><td>RTKPLOT</td><td>View and Plot Positioning Solutions Software, Part of RTKLIB</td></tr>
     5471<tr><td>RTNET</td><td>Real-Time Network Format</td></tr>
     5472<tr><td>RTP</td><td>Real-Time Transport Protocol</td></tr>
     5473<tr><td>RTSP</td><td>Real-Time Streaming Protocol</td></tr>
     5474<tr><td>SBAS</td><td>Space Based Augmentation System</td></tr>
     5475<tr><td>SINEX TRO</td><td>Troposphere Solution Independent Exchange Format</td></tr>
     5476<tr><td>SINEX</td><td>Solution Independent Exchange Format</td></tr>
     5477<tr><td>SIRGAS2000</td><td>Geodetic Datum for Latin America and Caribbean 2000</td></tr>
     5478<tr><td>SIRGAS95</td><td>Geodetic Datum for Latin America and Caribbean 1995</td></tr>
     5479<tr><td>SIRGAS</td><td>IAG Reference Frame Sub-Commission for Latin America and Caribbean</td></tr>
     5480<tr><td>SP3</td><td>Standard Product # 3</td></tr>
     5481<tr><td>SPP</td><td>Single Point Positioning</td></tr>
     5482<tr><td>SSL</td><td>Secure Sockets Layer</td></tr>
     5483<tr><td>SSR</td><td>State Space Representation</td></tr>
     5484<tr><td>SVN</td><td>Subversion, Revision Control System</td></tr>
     5485<tr><td>TCP</td><td>Transmission Control Protocol</td></tr>
     5486<tr><td>TEQC</td><td>Translation, Editing and Quality Checking</td></tr>
     5487<tr><td>TLS</td><td>Transport Layer Security</td></tr>
     5488<tr><td>UDP</td><td>User Datagram Protocol</td></tr>
     5489<tr><td>UMTS</td><td>Universal Mobile Telecommunications System</td></tr>
     5490<tr><td>URA</td><td>User Range Accuracy</td></tr>
     5491<tr><td>VRS</td><td>Virtual Reference Station</td></tr>
     5492<tr><td>VTEC</td><td>Vertical Total Electron Content</td></tr>
     5493
     5494</table>
     5495
     5496<p><img src="IMG/screenshot44.png"/></p>
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