WLW made its debut broadcast on March 23, 1922, beginning at 7:15 p.m. Station studios and transmitter were located at the Blue Rock Street building. Although the transmitter power was a fairly modest 50 watts, station publicity boldly predicted that although previously "only the smaller type of sending apparatus has been employed in Cincinnati", "The equipment of the Crosley Manufacturing Company is of such great power that the concert emanating from Cincinnati will be heard as far as a distant point in Canada; as far east as the Atlantic Ocean; west as far as the Rocky Mountains, and south to the southernmost tip of the Florida Keys, and possibly to ships in the Gulf of Mexico" and that "This inaugural concert will put Cincinnati 'on the map' of the radio world."