This is incorrect at least in the US. You are allowed to receive practically everything. There's only really a carve out for analog cellphone frequencies, but that's about it.
You just jogged a weird memory out of my head. In the early days of the internet there were sites that had pirate audio streams from analog cell phones. It was pretty sporadic but a very interesting sort of slice of life thing.
> It's a strange thing to see white-snow-static redigitized and then drop bit-rates.
Old-school white snow static is theoretically the most uncompressable thing, right? So some poor encoder is being told to "send this at 384kb!" and it just throws its little robot hands up and says, "fine, here's your super blocky bullshit. I'm going on break..."
Modern codecs detect noise, filter it out and add back artifical noise at the decoder (especially audio codecs can do this with all kinds of noise). I think back in the day, video compression would likely not have an issue as noise is high frequency and if you're compressing images, that's the first thing to go, you'd just get a blurrier image.
That’s under federal law. A few states add some restrictions. 5 of them disallow listening to police frequencies on portable radios without a license (but a ham license is acceptable). Florida and New York are the biggest states with this restriction.