matter of POWER; American Stations are limited a maximum ... a limitation that does not exist under Mexican regulation. X.E.R.F. for example, is licensed to operate on power, and the Department of Communication and Public Works of the Mexican Government has authorized a power increase to . Such power could result in serious interference if wave lengths were not strictly maintained, but the equipment with which X.E.R.F., operates assures its signal to stay "right on the beam." This is something constantly checked by FCC monitor stations, a degree of regulation by the U.S. Government alike that is imposed upon U.S. Stations. Operating on a clear channel, X.E.R.F. is heard nightly in all parts of the fifty States in the United States, Canada and Latin-America. Although reference was made to a power increase, the station only had an RCA transmitter. Paul Kallinger The booming bass voice of Paul Kallinger was used to sell many of the products on XERF. At night, his recorded spots between the different sponsored shows served as a jingle break. Kallinger remained on the Texas side of the border and recorded his spots at a studio in Del Rio, because he did not want to become embroiled with the lawlessness that swirled around the XERF studio and transmitter on the other side of the border. In between the different religious programs, Kallinger would tell XERF listeners in various versions that: It’s always good to know that we have some fine people out there listening to the most powerful commercial voice in the world ... From alongside the beautiful Rio Grande, this is XERF, Ciudad Acuña, Coahuila, Mexico. Our mailing address is Del Rio, Texas. This is Paul Kallinger. As Mexican law required stations to identify in Spanish, the portion identifying the station's call letters and the station's location in Mexico, was then repeated in that language. Kallinger, along with fellow XERF alumni Bill Mack, were inducted into the Texas Country Music Disc Jockey Hall of Fame in in recognition of their influence on the development of country music. Wolfman Jack (19621964) With the birth of rock and roll and its promotion by disc jockeys such as Alan Freed, a new interest was taken in the unrestricted superpower airwaves that were available in Mexico. Alan Freed had originally called himself the Moondog after hearing the name used by an experimental street musician in New York City. Freed not