User Guide

Table Of Contents
u-center-User Guide
UBX-13005250 - R18
Production Information 6 NTRIP
Page 51 of 67
6 NTRIP
This section will give an overview of the NTRIP support in u-center. Currently u-center supports both NTRIP client
and NTRIP caster/server functionality. Settings for both of them can be found under "Receiver" menu.
Networked Transport of RTCM via Internet Protocol (NTRIP) is an application-level protocol that supports the
streaming of 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 extended to GNSS data streams.
6.1 NTRIP Client
NTRIP client allows connecting to any NTRIP compliant caster and receiving RTCM correction data for receiver.
Currently version 1 of NTRIP standard is implemented.
Perform the following steps to connect to the caster (steps 10 to 14 are only needed when the mount point
requires additional NMEA message to be sent by the client):
1. Establish the communication between u-center and the device (see also Connect to the receiver).
2. Open NTRIP client settings dialog by clicking on Receiver -> NTRIP Client...
Figure 48: NTRIP client settings dialog
3. Enter the address of the NTRIP caster. See position a.
4. Enter the port number of the NTRIP caster. See position b.
5. Enter the username which will be sent to the NTRIP caster. If no authentication is required by the caster, then
leave this field empty. See position c.
6. Enter the password which will be sent to the NTRIP caster. If no authentication is required by the caster, then
leave this field empty. See position d.
7. Click on "Update source table" to get an up to date list of all available mount points from the caster. See
position e.
8. To see the detailed attributes of mount points, click on "Mount point details". This will bring up a new dialog
box listing all the mount points available and their attributes. See position f.
9. Select one of the mount points listed in the drop down box. See position g.
10.Click on "Use manual position" to enter values for position data. If this is not checked, the position data will
be retrieved directly from the receiver. See position h.
11.Enter the longitude in degrees, in either floating point or integer format. See position i.
12.Enter the latitude in degrees, in either floating point or integer format. See position j.