Index: trunk/BNC/bnchelp.html
===================================================================
--- trunk/BNC/bnchelp.html	(revision 1766)
+++ trunk/BNC/bnchelp.html	(revision 1790)
@@ -149,7 +149,8 @@
 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 3.12.1.5 <a href=#ntripv>NTRIP Version</a><br>
 &nbsp; &nbsp; &nbsp; 3.12.2 <a href=#streamip>Add Streams - Coming from TCP/IP Port</a><br>
-&nbsp; &nbsp; &nbsp; 3.12.3 <a href=#streamser>Add Streams - Coming from Serial Port</a><br>
-&nbsp; &nbsp; &nbsp; 3.12.4 <a href=#start>Start</a><br>
-&nbsp; &nbsp; &nbsp; 3.12.5 <a href=#stop>Stop</a><br>
+&nbsp; &nbsp; &nbsp; 3.12.3 <a href=#streamudp>Add Streams - Coming from UDP Port</a><br>
+&nbsp; &nbsp; &nbsp; 3.12.4 <a href=#streamser>Add Streams - Coming from Serial Port</a><br>
+&nbsp; &nbsp; &nbsp; 3.12.5 <a href=#start>Start</a><br>
+&nbsp; &nbsp; &nbsp; 3.12.6 <a href=#stop>Stop</a><br>
 3.13. <a href=#cmd>Command Line Options</a><br>
 &nbsp; &nbsp; &nbsp; 3.13.1. <a href=#nw>No Window Mode</a><br>
@@ -797,5 +798,5 @@
 <tr><td>'long' &nbsp;</td><td>Approximate longitude of reference station, in degrees, east; editable if 'nmea' = 'yes'.</td></tr>
 <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>
-<tr><td>'ntrip' &nbsp;</td><td>Selected NTRIP transport protocol version (1, 2, R, or U), or<br>'N' for TCP/IP streams without NTRIP, or<br>'S' for serial input streams without NTRIP.</td></tr>
+<tr><td>'ntrip' &nbsp;</td><td>Selected NTRIP transport protocol version (1, 2, 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>
 <tr><td>'bytes' &nbsp;</td><td>Number of bytes received.
 </table>
@@ -908,5 +909,20 @@
 </p>
 
-<p><a name="streamser"><h4>3.12.3 Add Streams - Coming from Serial Port</h4></p>
+<p><a name="streamudp"><h4>3.12.3 Add Streams - Coming from UDP Port</h4></p>
+<p>
+Button 'Add Streams' > '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:
+<ul>
+<li>Enter the local port number where the UDP stream arrives.</li>
+<li>Specify a mountpoint. Recommended is a 4-character station ID. Example: FFMJ</li>
+<li>Specify the stream format. Available options are 'RTCM_2', 'RTCM_3', 'RTIGS', and 'ZERO'.</li>
+<li>Enter the approximate latitude of the stream providing rover in degrees. Example: 45.32.</li>
+<li>Enter the approximate longitude of the stream providing rover in degrees. Example: -15.20.</li>
+</ul>
+</p>
+<p>
+Streams 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.
+<p>
+
+<p><a name="streamser"><h4>3.12.4 Add Streams - Coming from Serial Port</h4></p>
 <p>
 Button 'Add Streams' > 'Coming from Serial Port' allows to retrieve streams from a GNSS receiver via serial port without using the NTRIP transport protocol. For that you:
@@ -942,10 +958,10 @@
 <p>
 
-<p><a name="start"><h4>3.12.3 Start</h4></p>
+<p><a name="start"><h4>3.12.5 Start</h4></p>
 <p>
 Hit 'Start' to start retrieving, decoding, and 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.
 </p> 
 
-<p><a name="stop"><h4>3.12.4 Stop</h4></p>
+<p><a name="stop"><h4>3.12.6 Stop</h4></p>
 <p>
 Hit the 'Stop' button in order to stop BNC.