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RDAC XF

Posted: Tue Jun 25, 2024 8:29 pm
by RTpilot
I have an RDAC XF that flash a green led for 8 seconds on and 8 off. The flashing stays the same whether it's connected to the can bus or not. It's not providing any information to the iefis light. Several other items on the bus are working except the sp12. The sp12 is flashing 5 quick, a pause and one flash indicating normal. However, it does not show up on the systems diagnostics-Mode-s installation checks. It says "No SP-12 TABS GPS data received. Mode-A device outdatedtransponder in GROUND mode". It is an iefis lite with a trig transponder. I'd like to know if perhaps the RDAC is salvageable, or needs to be sent in.
Thanks,
Ron