WACA is a radio station broadcasting on 1540 kHz in the mediumwave AM band. It is a Spanish language news and talk station broadcasting as Radio America. Its transmitter is located in Wheaton, Maryland and it serves the Washington, D.C. metropolitan area. WACA has a daytime transmitter power of 5,000 watts, reaching as far north as Frederick County in Maryland and as far south as Stafford and Prince William Counties in Virginia.