N4THM is the amateur radio club call for the Turkey Heaven Mountain Repeater Association (THMRA) which was organized in November 2001 under the leadership of Gordon McKinney, W4GRM (SK) and several other interested amateur radio operators in the East Alabama and West Georgia area.

The THMRA sponsors two repeaters on Turkey Heaven Mountain in East Central Alabama

VHF repeater – 146.865+ /161.8 Hz tone access

UHF repeater – 444.175+ no tone required