Wikipedia
WRZN (720 kHz) is an AM radio station broadcasting a Christian radio teaching format for the Gainesville- Ocala, Florida media market. Licensed to Hernando, Florida, USA, the station broadcasts from a three tower directional antenna array located off State Highway 200, just north of Hernando. It is owned by MARC Radio Gainesville, LLC. Its studios are in a single wide mobile home located next to the transmitter towers on North Roscoe Road. Programming is also simulcast on 1430 WTMN in Gainesville. The stations call themselves "The Shepherd Radio 720 and 1430."
WRZN broadcasts at 10,000 watts by day with a non-directional antenna. During daytime operation, the station can be heard in Ocala, Gainesville, and Tampa. But at night, the station reduces power to 250 watts, using a directional antenna because 720 AM is a clear channel frequency reserved for Class A WGN in Chicago.