Trimble Outdoors SPSX51 - Manual (Page 169)

SPSx51 Modular GPS Receivers User Guide 167
Troubleshooting G
The base station
receiver is not
broadcasting. Port settings between
reference receiver and
radio are incorrect. Using the SCS900 Site Controller software, connect to the
reference radio through the receiver. If no connection is
made, connect directly to the radio and change the port
settings. Try to connect through the receiver again to ensure
that they are communicating.
Corrections are routed
to a port rather than to
the internal radio
modem. Check that corrections are routed correctly using the receiver
keypad and display.
A rubber duck antenna is
connected directly to the
radio antenna port on
the receiver, or an
external high-gain
antenna is connected
through a cable to the
radio antenna port on
the receiver. Check that the connections are made correctly and to the
right connectors. Ensure that the connectors are seated
tightly and that there are no signs of damage to the cable.
You are using AutoBase
and the AutoBase
Warning function is
enabled. If you set up on a new point on a site that has not been
occupied previously, the AutoBase Warning will prohibit the
base station from broadcasting.
Faulty cable between
receiver and radio. Try a different cable.
Examine the ports for missing pins.
Use a multimeter to check pinouts.
No power to radio. If the radio has its own power supply, check the charge and
connections.
Rover receiver is
not receiving
radio. The base station receiver
is not broadcasting. See the issue, The base station receiver is not broadcasting.
above.
Incorrect over air baud
rates between reference
and rover. Connect to the rover receiver 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 not correctly
connected. Make sure that the external radio antenna cable is connected
between the TNC connector marked RADIO and the radio
antenna.
Issue Possible cause Solution