/diy/ - Do It Yourself

>>1343155
>FAQ: ftp://collectivecomputers.org:21212/Books/Cyberpunk/Tech/Radio/radio_FAQ_Preview2.htm
>all bands are monitored and emitters located as a matter of routine
>Above 30 MHz you will be caught by satellite systems like Mercury, Vortex and more.
Considering direction finding is only accurate to about a degree, I'm having trouble believing that they would waste their time with this. Even if they managed accuracy to 1/2 degree they'd still only be narrowing down your location to somewhere within ~200 miles of your actual location given how far satellites are from Earth's surface, which is going to be many times the distance you would actually be able to normally communicate using those frequencies.

On a side note.
>Below 30 MHz you will be caught by systems like the Wullenweber, huge antenna systems that at 300 m diameter have earned the nickname "Elephant cages".
I'd be much more worried about what could be done with a cheap SDR and modern hard drive capacity on home computers than what the government can do with a fuckheug antenna. Also, there doesn't seem to be much work as of recently with using FLAC or other compressed formats for recordings done with SDRs, so people's ability to record large chunks of spectrum could increase significantly in the near future.