* Question: The only way I see this happening is due to some AM > component on radio station's transmitter. > > Thoughts?
I've got one site with similar problems. MastrII repeater, in a metal cabinet, grounded, bonded quite well. Shielded audio cables, ARCOM RC-210 controller (shameless plug for Ken) and intermittent FM station audio. It comes and goes, some sort of mix with something, but the shorter shielded hook up cables helped it quite a bit. It's using a MastrII power supply and back up battery. It's tolerable most of the time, sometimes enough audio to actually hear what is being said, almost always the audio is on the 'tail' of the repeater, not noticeable when the repeater is actually repeating. Shorter shielded cabling seemed to help the most. 73 Daron
