Those are just the pings from the transponder that almost every aircraft carries to help air traffic controllers keep track of it. You can receive and decode th

Those are just the pings from the transponder that almost every aircraft carries to help air traffic controllers keep track of it. You can receive and decode them with a $20 RTL-SDR dongle and free software. There's more info on how I track aircraft and how I figured out that the FBI was flying over 100 aircraft registered to front companies, some of them doing aerial surveillance, here: https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo8UouLCJVe2NuDHo0sEn2QN8/edit?usp=sharing https://docs.google.com/presentation/d/1zwRyuVJGaQwG6mYMSYWo...