C-GCS Radio Troubleshooting

RFD900x Radio Troubleshooting

If connection issues with your RFD900x are suspected, this could be a result of damaged antennae, coaxial cables, or the radio itself.

• Visual Inspection: Inspect your vehicle and C-GCS to make sure the correct antennae are installed. 900MHz antennae can be identified by their non-anodized aluminum base. Remove an antenna and inspect the polarity of the connector. Check each antenna for damage such as bending or separation.
• Avionics Inspection: Remove your fuel tank or battery rack and unscrew the four screws securing the cover plate. Find the RFD in the bottom left corner of the avionics board. Inspect the coaxial cable connection, polarity, and integrity. Trace the wiring harness looking for severed wires or de-pinning. With the vehicle powered on, observe the LEDs — rapid flashing indicates transmission; a slow pattern indicates no connection.
• Power Cycling: C-GCS are equipped with a radio killswitch. If the vehicle has difficulty establishing a connection, use this switch to refresh the radio.

• RFD Tools Inspection: Using RFD Tools, connect to the associated COM port with a Baud rate of 57600.

   Verify your settings match the reference photo (excluding NET ID).

• For NET ID, this should be programmed to the VIN of your vehicle (found near your GPS stands, e.g. H6E###).
• If all settings match and connectivity issues persist, enter the "Terminal" tab and run "AT&T=RSSI". With the vehicle in close proximity, ideal RSSI should be 206/206. If RSSI is fluctuating, a component may be damaged — swap one antenna at a time to isolate the issue.

If issues persist after replacing antennas, inspect the coaxial cables for damage or pin recession. If coaxial cables or a radio are suspected to be damaged, please submit a ticket for replacement.

Microhard Radio Troubleshooting

• Visual Inspection: 2.4GHz antennae can be identified by their distinct trapezoidal shape at the C-GCS and double arrow shape on the vehicle. Inspect connector polarity and check each antenna for damage.
• Avionics Inspection: Find the Microhard on the outside rear of the vehicle. Inspect coaxial cable connection, polarity, and integrity. Trace the wiring harness looking for severed wires or de-pinning. Rapid LED flashing indicates transmission; a slow pattern indicates no connection.
• Power Cycling: Use the radio killswitch on the C-GCS to refresh the radio and attempt reconnection. If none of these steps resolve the issue, please submit a ticket for further instruction.