 WZMF formerly simulcast the adult contemporary format aired by its sister station, WCOZ, now KZ104, in neighboring Sullivan County, but now airs a classic hits format.The station identifies itself primarily by its translators at 104.3 and 104.5 MHz, hence the name "Gem 104".WZMF's beginnings trace back to the mid-1980s, when a consortium of eight local businessmen pooled their resources to form Endless Mountain Broadcasting.