WTKA is a radio station located in Ann Arbor, Michigan, that broadcasts on 1050 AM. Day power is 10 kW, night power is 500 W. The station covers most of southeast Michigan.First on-air as WPAG in 1945, the station was the first licensed to Washtenaw County, with studios on the third floor of the Hutzel Building, at the corner of Main at Liberty Streets in Ann Arbor.