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FAA ADS-B report no data - RV-12iS with G3X panel, GTX 35R and GPS-20(A)

jackking123

Well Known Member
Patron
So the FAA ADS-B report is blank, but flight-aware sees plane perfectly. I understand they are different systems. It was working 2 yrs ago, and had to change settings.

Two questions:
1st, I am not near plane right now but I read G3X Configuration, Transponder menu and ensure the Position Integrity setting must be IFR or 1E-7, not Auto or VFR. It was working 2 yrs ago after I had to fix this, but it must have reset itself.​
2nd. FAA form asks for ADS-B report they ask for GPS source. I don't see GPS-20A (remote WAAS GPS). Should I select "not listed" or just Garmin GPS like a GPS175, or some other Garmin GPS.​
NOTE: "Garmin GPS 20A: Used to provide supplemental WAAS position data to your transponder (for ADS-B Out) and steering guidance. Many of these units are now failing to acquire satellites or require expensive service to replace the internal real-time clock battery." I doubt this is the issue. GPS is solid but anyone have this issue?
 
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