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GTX330es NIC, nacp, nacv 100% fail

PilotCR3

Member
Hello all, was hoping someone could help.
Received a letter from friends at the FAA that my ADS-B has a 100% failure in NIC, NACp and NACv. After chatting with garmin support they claim it’s either an error in the configuration settings for GPS integrity or an issue with the GPS position input to the transponder. any ideas what settings could be wrong on the GTX330es?? It is fed by a GTN750.

Thanks in advance!
 
Did you talk with Garmin Experimental support? They are much better than plain Garmin support, and should give you a list of configuration settings for your Garmin transponder, as well as the needed RS232 format settings for your 750.
 
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