idoctribefan wrote:I can get WTAM 1100 when traveling west all the way to Des Moines. When traveling south, I lose it about 30 miles north of Columbus. Can't figure it out either.
From what I understand, WTAM's broadcast transmitter is oriented east-west. This is to take advantage of more populous areas in those directions (Pittsburgh, Chicago, Detroit, even Philley and New York City) and to avoid the big black audience hole that is Canada directly north.
After the sun goes down, it becomes a "clear channel" station in the truest sense as weaker local stations go off the air in all directions. Also, AM radio signals bounce off the atmosphere (as opposed to FM signals, which are line-of-sight), making it easier to pick up WTAM at distant points when the local stations are not on the air to interfere.