in 1942, the station boosted its power to 50,000 watts, becoming the second clear-channel station in tennessee behind wsm. its daytime signal is somewhat weaker than that of wsm, due in part to wlac's higher frequency on the dial. the daytime signal reaches parts of five states. some close-in suburbs of nashville, like murfreesboro, get only a grade b signal from wlac. however, its nighttime signal reaches parts of 28 states and three canadian provinces.