XEPRS-AM (1090 kHz) is a commercial radio station licensed to Playas de Rosarito, a suburb of Tijuana in Baja California, Mexico. It broadcasts a sports/talk radio format, branded as "The Mightier 1090". The station is heard across the San Diego-Tijuana, Los Angeles-Orange County, Riverside-San Bernardino areas of Southern California. XEPRS is a Class A, 50,000 watt clear-channel station using a non-directional antenna in the daytime. Because it must protect other Class A stations on 1090 AM, it uses a three-tower array directional antenna at night. The transmitter is just off of Mexican Federal Highway 1D in Fraccionamiento Rancho del Mar. The daytime signal can be heard over much of Coastal Southern California and parts of Baja California. At night, the skywave signal extends over much of the West Coast of the United States and Northwestern Mexico. History XERB: The Mighty 1090 Today's 1090 AM started out as 150,000-watt XERB on 730 kHz. The original concession was awarded to Manuel P. Barbachano, grandson of one-time Governor of Yucatán, Miguel Barbachano. The concession was sold to Radiodifusora Internacional, S.A., in 1939. As part of the North American Regional Broadcasting Agreement in 1941, the station moved from 730 to 1090, powered at 50,000 watts. XERB was sold to Interamericana de Radio, S.A., in 1950. In the early 1960s, Robert Weston Smith (better known as Wolfman Jack) was living in Del Rio, Texas and appearing on the 250,000-watt "border blaster" radio station XERF (1570 AM), just over the Rio Grande in Ciudad Acuña. In 1964, after several violent incidents at XERF's transmitter, Smith and partner Marvin Kosofsky (called "Mo Burton" in Wolfman Jack's autobiography) decided to relocate to an American radio station. They purchased Minneapolis-area daytimer station KUXL 1570. Smith moved to Minnesota and never appeared as Wolfman Jack on KUXL, but rather worked as the station's general manager while shipping Wolfman shows on tape to XERF. In 1965, Smith made an arrangement with the U.S. agent to program another border blaster, XERB in Tijuana. Smith began selling ad time on the "Mighty 1090" and recording Wolfman Jack shows for his new affiliate. Initially, Smith controlled the station's affairs from Minneapolis, but in 1966, Smith, along with fellow KUXL staffers Ralph Hull (also known as Preacher Paul Anthony and The Nazz) and Art Hoehn (also known as Fat Daddy Washington), relocated to Southern California to run XERB full-time. Wolfman and his associates were able