 The station's 100,000-watt signal allows it to be picked up clearly 24/7 in Baton Rouge, 55 miles to the east, and Lake Charles, 70 miles to the west.KTDY signed on on September 15, 1966 as KPEL-FM, and was at first a beautiful music simulcast of sister station 1420/KPEL.In the early 1970s, due to Federal Communications Commission (FCC) regulations discouraging full AM/FM simulcasts, KPEL-FM began programming a Progressive Rock format in the overnight hours, retaining the beautiful music format during the day.