American Radio station designations

As a Brit, I’ve always wondered why American radio stations always seem to have a K and/or a W in their titles.

What do the letters mean ?

I think that one is East side of America, and one is the West. Don’t know about the middle, or which is which. I’m sure someone will be along in a bit to tell me i’m wrong, though

Cecil speaks: Why do U.S. radio call letters start with W in the east and K in the west (revisited)?

I don’t the link but it was answered earlier, search the archives from the mailbag. The letters are arbitrary, W generally being in the east, K being in the west. However, living in North Dakota (Yes, it really cold tonight) we have radio and tv staions sporting both letters

Ok tks, I didnt know this had been covered.
Cheers