Note: this is not a request for troubleshooting help.
For the past few years my 10ish year old “smart” TV will maybe once a week or so completely lose the ability to play sound in the Youtube app, and only in the Youtube app. Sound works just fine everywhere else. Bizarrely this is always triggered by an ad and never a video. Restarting the app doesn’t fix it, and neither does clearing the cache. Fortunately doing a full restart of the TV fixes it, it’s just irritating to have to restart because an ad somehow broke the sound.
What technological gremlins haunt you?
I have a couple, as well as GNU Radio, but there isn’t a software package that I’m aware of that does some analog of something like what Kismet does for WiFi, which will let you move around and use GPS position data to identify the location of sources of radio energy.
I suspect that it’d also be more-effective to do something like have an antenna array and use a device with a common, synchronized clock to identify direction.