Back when I was a teen and lived in southern Arizona, there was a ham radio operator that was operating at frequencies that he probably shouldn't have been. We'd hear him on any of our electronics in the house or car -- anything with a speaker. His handle was "the old Carpetbagger".
Probably CB with an (illegal) linear amplifier.
Once upon a time, even CB enthusiasts had callsigns issued by the FCC. My CB operating license was KABC-4291 and I used it every time I used the radio. Later I used my handle "Silver Squid", but I still log-off the channel using the FCC-issued callsign.
Once upon a time the FCC enforced the "no chit-chat" rule and came to visit my friend who had a CB in his room and talked with another 8th grader in the neighborhood on it.
Then CB grew so quickly from the Smokey and the Bandit movie that it became impossible to control or regulate. The FCC pretty much just gave up.
CB'ers generally don't have any technical knowlege at all. Some of what some of them know is hilariously wrong.
Hams have to pass a technical test and there are graduated licenses with increasingly more technical subjects to gain more frequency privileges.
An experienced ham operator might have the skills, knowlege and test equipment to find the problem. (I don't have the test equipment but I could get a pretty good start on what frequencies to look at. But I'd have to be in the area where the problem occurs.)