Figure 26: Steam input communication links.
-3.18.1 Add Stream - Coming from Caster
+Button 'Add Stream' allows you to pull streams either from an NTRIP Broadcaster or from a TCP/IP port, a UPD port, or a serial port. +
+ +3.18.1.1 Add Stream - Coming from Caster
@@ -2242,10 +2250,10 @@
-3.18.1.1 Caster Host and Port - mandatory
3.18.1.1.1 Caster Host and Port - mandatory
Enter the NTRIP Broadcaster host IP and port number. Note that EUREF and IGS operate NTRIP Broadcasters at http://www.euref-ip.net/home, http://www.igs-ip.net/home, http://www.products.igs-ip.net/home and http://mgex.igs-ip.net/home.
-3.18.1.2 Casters Table - optional
3.18.1.1.2 Casters Table - optional
It may be that you are not sure about your NTRIP Broadcasters host and port number or you are interested in other broadcaster installations operated elsewhere. Hit 'Show' 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 figure below. @@ -2256,10 +2264,10 @@
Figure 27: Casters table.
-3.18.1.3 User and Password - mandatory for protected streams
3.18.1.1.3 User and Password - mandatory for protected streams
Some streams on NTRIP Broadcasters may be restricted. 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 http://igs.bkg.bund.de/ntrip/registeruser for access to protected streams from EUREF and IGS.
- +Use 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 1045 (Galileo) are required. Select your streams line by line, use +Shift and +Ctrl when necessary. The figure below provides an example source-table. @@ -2274,7 +2282,5 @@
Figure 28: Broadcaster source-table.
-Button 'Map' leads to the presentation of a map showing the distribution of streams offered through the downloaded source-table.
- -3.18.1.5 NTRIP Version - mandatory
3.18.1.1.5 NTRIP Version - mandatory
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: @@ -2298,14 +2304,13 @@
- --Button 'Map' opens a window to show a distribution map of the caster's -streams. You may like to zoom in or out using mouse (left button: draw a -rectangle to zoom, right button: zoom out, middle button: zoom back) -
+ ++Button '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. +
+
Figure 29: Stream distribution map derived from NTRIP Broadcaster source-table.
-3.18.2 Add Stream - Coming from TCP/IP Port
3.18.1.2 Add Stream - Coming from TCP/IP Port
Button 'Add Stream' > '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: @@ -2326,5 +2331,5 @@
-3.18.3 Add Stream - Coming from UDP Port
3.18.1.3 Add Stream - Coming from UDP Port
Button 'Add Stream' > '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: @@ -2341,5 +2346,5 @@
-
3.18.4 Add Stream - Coming from Serial Port
3.18.1.4 Add Stream - Coming from Serial Port
Button 'Add Stream' > 'Coming from Serial Port' allows to retrieve streams from a GNSS receiver via serial port without using the NTRIP transport protocol. For that you: @@ -2381,10 +2386,20 @@
Figure 30: BNC setup for pulling a stream via serial port.
- + ++Button 'Delete Stream' allows you to delete streams previously selected for retrieval as listed under the 'Streams' canvas on BNC's main window. +
+ + ++Button '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. +
+ +Hit 'Start' to start retrieving, decoding or converting GNSS data streams in real-time. Note that 'Start' generally forces BNC to begin with fresh RINEX which might overwrite existing files when necessary unless the option 'Append files' is ticked.
- +Hit the 'Stop' button in order to stop BNC. @@ -2609,5 +2624,5 @@