Wayyyyyy back in the early 60's there were large numbers of medium wave pirate stations operating, usually run by high school kids out of their homes.
I've told this story before, but I had a Zenith Trans Oceanic with a "wavebar" ferrite antenna which was of course directional. We had a local pirate station broadcasting regularly on the weekends in about 1961 or 62, and so we used the Zenith to hone in on the signal. We kept driving around until we had a very stong signal. As we drove down what turned out to be the street where the station was located, A truck with a directional antenna on top stopped right ahead of us and to "suits" got out and walked to up to the house. Busted!
What a waste of expensive government equipment. All they really needed was a Zenith Trans Oceanic.
Most of the pirates would get their equipment confisticated and a "official" letters. I'm thinking the young broadcasters didn't get fined, and some were back on the air soon after.