gtx 330es adsb problems

  1. J

    Garmin GTX 330ES not transmitting ADSB?

    Good Afternoon, I am new to this site and new to aircraft ownership in general. I recently purchased a Piper Cherokee with no radios and with the help and guidance, and oversite of a qualified A&P/ IA, I built a wiring harness and installed all Garmin equipment, a GMA 340, GNC 355...
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