I have started playing with ADS-B data again. For those that do not know, ADS-B is a system where planes send their position, speed, heading and other telemetry to the ground via a radio on typically 1090 Mhz. This is unencrypted data that anyone with a receiver and antennas can pickup and use. The above chart is generated by the PiAware software running on a Raspberry Pi 3B. The planes and position reports you see are all received locally by me with a small antennas sitting on the window sill…