We had a similar situation on Guam a few years ago. The local TV station on channel 14 contacted the Marianas Amateur Radio Club (MARC) for help with an interference problem. One of our members was a radio service tech with access to a portable spectrum analyzer but he had no fox hunting experience. Several of us did, due to regular fox hunts around the island. I fabbed a 3 element yagi for channel 14 with brazing rod and PVC pipe. After a brief search we tracked it down to the main cell tower of one of Guam's cell companies. They gave us a remarkably difficult time. We had to explain several times that we were not customers and did not need to see Customer Service. Finally we were put through to the chief engineer in the next building on the phone since he refused to speak to us in person. He repeatedly dismissed what we were politely trying to help him with. At last we threatened to contact the FCC if he didn't deal with it. The next day the interference was gone. Of course, there was no admission of any problem. Oh, well. In any case, T-hunting does have its practical side.
73,
Chuck
NA3CW