You could use it for that but there is software made specifically for this, like dump1090 for Linux (here for other options: https://www.rtl-sdr.com/adsb-aircra

You could use it for that but there is software made specifically for this, like dump1090 for Linux (here for other options: https://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/ https://www.rtl-sdr.com/adsb-aircraft-radar-with-rtl-sdr/)... What I found funny when I tried it is that many small airplanes don't broadcast that signal... are they FBI's planes? Another interesting use can be reading your electric meter (and the ones of your neighbors), using GNU Radio or https://github.com/bemasher/rtlamr https://github.com/bemasher/rtlamr . Another one, is reading TPMS from your car wheels (or cars that are passing by): https://www.rtl-sdr.com/receiving-decoding-tire-pressure-monitor-systems-using-rtl-sdr/ https://www.rtl-sdr.com/receiving-decoding-tire-pressure-mon... , https://github.com/jboone/tpms https://github.com/jboone/tpms