WDTR is a non-commercial, Christian FM radio station licensed to serve Imlay City, Michigan. It is owned by Michigan Community Radio, which is in turn owned by Jennifer and Edward Czelada. The station is part of their Smile FM network of Contemporary Christian music stations.The station came on the air on December 18, 2000 with the callsign WHYT. It was the flagship of the Joy-FM network of stations planned by the Czeladas.