Trimble Outdoors r7 Manuale Utente

C       Troubleshooting

1 9 8      Trimble R7/R8 GPS Receiver User Guide

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 radio antenna cable and 
GPS antenna cable are mixed 
up.

Make sure that the radio antenna 
cable (with the blue over-mould) is 
connected between the blue TNC 
connector marked RADIO and the 
radio antenna.

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.