alt Hacker News> I've seen SDRs being used to track civilian airplanes using TV transmitters
I was reading about that and was really interested in trying it - got quite close to buying some kit (KrakenSDR) - then it seemed that particular capability got removed suddenly a couple of years ago due to ITAR regulations, or at least legal types getting worried about ITAR...
https://www.reddit.com/r/RTLSDR/comments/yu9rei/krakenrf_pul...
The code from kraken was removed -- I think because it was open source? I think its still ok to write your own code (Discalimer: I havent done this so please verify on your own obvisouly)