 KWMT was previously co-owned with WMT; consequently the call WMT was used with the addition of the necessary K. 

540 AM is a Canadian and Mexican clear-channel frequency; KWMT operates with a two-tower directional antenna system with much of its power headed south of Fort Dodge and very little headed north.KWMT limits its coverage to the north to protect a station in Canada.During the daylight hours, KWMT has regular listeners as far as Oklahoma, western Nebraska, eastern Illinois and all of Iowa.