Disclaimer #1: I've flown with an SL30 but never owned one, never serviced one and never saw this message.Has anyone seen this? Seems like it’s unable communicate with VOR.
Antenna related?
I have also been having the same issue on my Garmin SL30 --DSP COMMUNICATIONS ERROR-- , so the unit was sent to Garmin for the $875 Garmin checkout and it came back and has the same problems 2 weeks later. The Avionics tech is still waiting for a response. Does yours work fine after the repair? Do you know what they did or who you dealt with at Garmin? Any help is appreciated.