You can bet your ass that if you or I were to set up a fake cell tower, the FCC would be all over us faster than you could say ‘fake cell tower’.
I’ve been a wireless engineer since ‘88. Unless it is transmitting a signal that interferes with other signals being transmitted, causing someone to complain to the FCC, no one would never know. The FAA otoh would be far more likely to raise a stink if the tower were over, say, over 100’ or so. Anything over 200’ by law has to be lighted. Tower heights for lighting are even lower near airports. So, if someone suddenly put up a 200’ tower and didn’t light it that would definitely get their attention. I suspect this is either NSA or DHS activity, or both. A quick way to find out who owns one is to get the Lat and Long of the site and check the FCC database to see if it’s registered.
I could be mistaken but doesn’t the FCC only regulater transmissions and not receivers? So if these are only receiving and monitoring then can the FCC do anything? Now if they are sending as well as receiving I get the point.
Probably wouldn't get finished the first word.