There are two possible reasons for the GP-Probe TGE2 to indicate the error:
Reason 1: Short circuit in the GNSS antenna or RF cable.
Solution 1: Replace the GNSS antenna or RF cable.
Reason 2: A passive GNSS antenna is being used while the GP-Probe's GNSS antenna power supply is enabled.
Solution 2: Disable the antenna power supply for this channel in the configuration panel:
