Loud aircraft last night?

[Skippermark]

Originally Posted by geordie

If you want to know what is round you right now try an ADS-B app like ADS-B Unfiltered. The common tracking apps like FlightRadar24 and Flightaware delay the data several minutes and don't show all traffic. ADS-B (Autonomous Dependent Surveillance - Broadcast) is directly transmitted by the aircraft and is available for anyone to receive. Ground stations forward the information. You can also receive it directly yourself with a cheap software defined radio and some software. I live near Pease and often fire it up to see what they are up to. Military aircraft frequently don't give all details, but civil aircraft will even tell you what autopilot mode they are in.

I'm familiar with the LADD program but don't fully understand PIA. I know ADS-B receivers will still pick up the signal, but the transmitted code is temporary, so there's no way to know what plane it really belongs to, right? Am I understanding that correctly?