Dumb question on Ghost Traffic and how ADS-B works.
First flight tonight with ADS-B in. (Stratux.) I am not ADS-B out, nor Mode S. (Old Mode C.)
Immediately after takeoff I got an alert that someone was right next to me, flying my altitude. I assumed that target was me.
So, do I show up on ADS from the FAA? (They pick up my Mode C, run it thru their computers, and spit me out on 978 MHz?)
I turned on the Ghost Filter and my target went away for a while.
Another aircraft took off behind me. I could see his target down low but for some reason I lost him when he was 3000 ft above me, circling back to the south on the Instrument Departure. (Strict warnings, unlimited altitude and distance.)
I was circling over the field at midnight.
Suddenly, I got an alert of someone at my altitude flying the opposite direction. No NAV lights nor did my Monroy ATD-300 passive PCAS pick up anything on 1090. Could that have been me with a lot of lag from the FAA? (Ghost filter was still on.) Or govt spooks flying at night with lights off?
After that target went away, I turned the Ghost filter off. My "ghost" target never came back for the rest of the flight. So I'm confused. Should I be using the Ghost filter as a non-ADS-B out aircraft? Per Walter above, I use a GPS dongle separate from the Stratux.