Ron Hardin wrote:

There's some enormous hash signal 10 kHz above and below WTPG 1230
Columbus (aka. WCOL 1230 and WFII 1230) today, wiping out WHIZ 1240
Zanesville, which is Columbus's finest radio station.

Its daytime contours include Columbus on the map, too.

If I (directionally) deep-null away the hash, it also nulls away WTPG,
so WTPG is extremely likely to be the source.

Deep nulls are very very narrow, so odds are correspondingly high.



You likely should check if WTPG is running IBOC if it is, that's a
likely explanation of your problem. Welcome to the new world of
digital AM that makes listening to other signals just about impossible.