KCKA (virtual channel 15, UHF digital channel 19) in Centralia operates as a full-time satellite of KBTC-TV; this station's transmitter is located atop Crego Hill. KCKA covers areas of southwestern Washington that receive a marginal to non-existent over-the-air signal from KBTC-TV, although there is significant overlap between the two stations' respective contours otherwise. KCKA also covers some of the outer portions of the Portland, Oregon market. KCKA is a straight simulcast of KBTC-TV; on-air references to KCKA are limited to Federal Communications Commission (FCC)-mandated required station identifications during programming. Aside from the transmitter, KCKA does not maintain any physical presence locally in Centralia.