Troubleshooting receiver issues

This section describes some possible receiver issues, possible causes, and how to solve them.

The receiver does not turn on

Possible cause

Solution

External power is too low.

Check the charge on the external power supply, and check the fuse if applicable. If required, replace the battery.

Internal power is too low.

Do the following:

  • Check the charge on the internal batteries and replace if required.

  • Ensure battery contacts are clean.

External power is not properly connected.

Check that the USB connection is secured properly.

Faulty external power cable.

Try a different cable.

The receiver is not responding

Possible cause

Solution

The receiver needs a soft reset.

Turn off the receiver and then turn it back on again. For more information, see Button functions.

The receiver needs a full reset.

Press the Power button for 30 seconds. For more information, see Button functions.

The rover receiver is not receiving radio

Possible cause

Solution

Reference receiver is not broadcasting.

Ensure the reference base GNSS receiver is set up, powered, and transmitting GNSS corrections.

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 Power LED is flashing a slow green) and the receiver is not getting radio communications, use the Trimble Access software to check that the port settings are correct.

Incorrect message type selected

The Broadcast format must be the same on both the reference receiver and the rover(s).

Connect to the rover receiver using the Trimble Access software to ensure that the rover receiver Broadcast format has the same settings as the reference receiver. Check under Settings / Survey Styles / RTK / Rover Options / Broadcast Format = CMRx (for example).