"lsmyer" wrote in message
...
Maybe that explains what I've been hearing on WTAM lately. For the past
few nights, I've heard a weird warbling sound at times. Last night, it was
gone. Since WTAM is also a Clear Channel station, maybe that explains why
they sounded normal last night. I hope the sound stays away.

If it was after 6 PM, that is not, at least legally, IBOC/HD operation.