 The station went on the air as WFOW on November 13, 1989, later changing its call letters to WBNN on March 30, 1990, and to the current WTGR on April 23, 1991.WTGR's transmitter is located in Union City just east of the Ohio-Indiana state line with its studios and offices located in a building which formerly housed a carpet business on Martin Street (State Route 571 East) in Greenville.Since the signal upgrade and retargeting of the former WDRK toward Dayton under later call letters WLSN, WBKI, WDJO-FM, WOLT, and, now, WRZX (FM)), WTGR remains as Darke County's only locally-originating, commercial radio station.