WRNR (AM)

WRNR is a News/Talk/Sports formatted broadcast radio station licensed to Martinsburg, West Virginia, serving Martinsburg and Berkeley County, West Virginia. WRNR is owned and operated by Shenandoah Communications, Inc.
740 AM is a Canadian clear-channel frequency on which CFZM in Toronto, Ontario is the dominant Class A station. WRNR must lower its wattage from sunset to sunrise to protect the nighttime skywave signal of CFZM.
Translators.
In addition to the main stations at 740 kHz, WRNR is relayed by an FM translator to widen its broadcast area.