Ken Wilson wrote:

Well....... according to the 27th edition ot the NRC AM Radiom Log....
KTNN is 50kw day & night with an antenna code of U2 which means Omni
Directional by day & directional at Night.
The NRC data may be wrong..... but I doubt it.

Day and night coverage map:

http://www.ktnnonline.com/article.asp?id=68345

Squint closely and you can see the little daytime circle.

dxAce
Michigan
USA

Drake R7, R8, R8A and R8B