C Troubleshooting
144 Trimble R6/R7 GPS and Trimble R8 GNSS Receivers User Guide
Trimble R6 and R7 GPS/R8 GNSS Receiver Operation
Roving receiver is not
receiving radio.
Reference receiver is not
broadcasting.
See above.
Incorrect over air baud rates
between reference and rover.
Connect to the roving receiver’s radio
and check to ensure it has the same
setting as the reference receiver.
Incorrect port settings
between roving external
radio and receiver.
If the radio is receiving data (the
Logging/Memory LED is flashing) and
the receiver is not getting radio
communications, use Trimble Survey
Controller to check that the port
settings are correct.
The cellular modem does not
have hardware flow control
enabled.
Disable flow control on the modem.
Use a special cable. For more
information, refer to the document
Using Cellular and CDPD Modems for
RTK, which is available from the
Trimble website.
Issue Possible cause Solution