User's Manual

SPSx50 Modular GPS Receiver User Guide 161
Troubleshooting F
Roving receiver is not
receiving radio.
The base station receiver is
not broadcasting.
See page 160.
Incorrect over air baud rates
between reference and rover.
Connect to the roving receiver’s
radio and make sure that it has the
same setting as the reference
receiver.
The SCS900 software automatically
configures the over-the-air baud rate
to 9600.
Incorrect port settings
between roving external
radio and receiver.
If the radio is receiving data and the
receiver is not getting radio
communications, use the SCS900
software to check that the port
settings are correct.
The radio antenna cable and
GPS antenna cable are mixed
up.
Make sure that the external radio
antenna cable is connected between
the TNC connector marked RADIO
and the radio antenna.
The receiver is not
receiving satellite
signals
The GPS antenna is connected
to the wrong antenna
connector.
Make sure that the GPS antenna
cable is tightly seated to the GPS
antenna connection on the receiver
and not connected to the wrong /
radio antenna connector.
The GPS antenna cable is
loose.
Make sure that the GPS antenna
cable is tightly seated to the GPS
antenna connection on the GPS
antenna.
The cable is damaged Check the cable for any signs of
damage - a damaged cable can
inhibit signal detection from the
antenna at the receiver.
The GPS antenna is not in
clear line of sight to the sky.
Make sure that the GPS antenna is
placed in a location with clear line of
sight to the sky
Restart the receiver as a last resort by
powering down and restarting.
Issue
Possible cause Solution