This document provides a step-by-step guide on how to setup Terrastar-C with OxTS devices.
In order to begin using Terrastar-C, the following requirements must be met:
- Having a compatible OxTS device:
- These would be most RT, Survey+, or OEM, second generation devices (i.e. v.2 not v.1).
- xNAV, Inertial+, RT2500, and RT3100 devices cannot support Terrastar-C.
- If you are unsure about your device's compatibility, contact OxTS support.
- Having compatible GNSS firmware:
- PPP requires firmware version 6.600 or above for Terrastar-C.
- If you don’t have the latest firmware, contact OxTS support.
- Have bought a Terrastar-C subscription from your local NovAtel dealer. If not, you can order
one from your respective region/country through the following link:
- Ensure your antenna supports L-Band frequencies. All antennas that are supplied with
compatible OxTS devices are suitable. Should you have any doubts, contact OxTS support.
- GLONASS is recommended, as it will enhance the performance
3. Setting Up Terrastar-C
To begin setting up Terrastar-C, follow the steps given below:
- Power up OxTS device and connect it to your computer.
- Open NAVconfig:
- Select OxTS product;
i. Device orientation settings;
ii. Antenna settings: primary, or secondary if needed;
iii. Wheel/Advanced Slip settings.
- Performance options in NAVconfig.
Once this point of the configuration has been reached, the DGNSS service option needs to be enabled.
This is the key stage of the Terrastar-C setup.
The DGNSS service option, shown above, has three options to select from the drop-down menu:
– Automatic: Should be the default choice, unless a specific satellite needs to be tracked.
– Manual: If a specific satellite needs to be tracked, simply select manual from the drop-down
menu and then click on relevant satellite as shown in Figure 1.
- Further required options.
The final step is to configure the OxTS device to log Terrastar-C status messages, which are needed
for troubleshooting or verification of service purposes. To do this, enter the following commands
into the Advanced options section, as shown below.
- ->gps1: LOG TERRASTARSTATUSB
- ->gps1: LOG TERRASTARINFOB ONCHANGED
- ->gps1: LOG LBANDTRACKSTATB ONTIME 1
- commit the configuration to the device and save it for your records
4. Confirmation of set up
Following the configuration, open NAVdisplay and use the relevant warm-up PPP template to view
the GPS position mode. The figures below show NAVdisplay for a RT2002 device before and after
In the figure below, mode 31 appears once PPP has converged.
NOTE: If you have just bought a Terrastar-C subscription, ensure that the unit is left on to receive
the signal, this may take some time, so you may need to leave the unit on overnight. If you think that
you've missed the activation signal, Terrastar mention "The system will rebroadcast the activation
signal at 2-3 hour intervals."
If you cannot see PPP mode within NAVdisplay after following this guide, then please contact support