WWPX-TV operates as a full-time satellite of the main Ion station for the Washington area, Manassas, Virginia-licensed WPXW-TV (channel 66), whose studios are located in Fairfax Station, Virginia. WWPX covers areas of West Virginia's Eastern Panhandle, northern Virginia, central Maryland and south-central Pennsylvania that receive a marginal to non-existent over-the-air signal from WPXW, although there is significant overlap between the two stations' contours otherwise. WWPX is a straight simulcast of WPXW; on-air references to WWPX are limited to Federal Communications Commission (FCC)-mandated hourly station identifications during programming. Aside from the transmitter, WWPX does not maintain any physical presence locally in Martinsburg.