How do I enable GNSS output when using the USB cable?

The B400 USB cable (301-0097) is now discontinued and no longer available to purchase. If you want to connect B400 over USB please read the following FAQ

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However, if you already have the USB cable this article will still be relevant.

Please follow these steps to enable GNSS data output when using the USB cable:

1. go to Home ->System settings ->Interfaces ->NMEA 0183 port 3
2. change 'GNSS output on this port' to Yes
3. go to Home ->System settings ->Interfaces ->GNSS output
4. 'NMEA 0183 port 3' should now be listed as a port with GNSS output enabled
5. Enable the required sentences by selecting ON