It broadcast initially on 885 kHz with a power of 100 watts. The station was gone by the late 1930s, and in 1963, a new XEPN was created, this time on 920 kHz at Paracho, Michoacán. That station no longer exists.
Border Radio by Fowler, Gene and Crawford, Bill. Texas Monthly Press, Austin. 1987 ISBN0-87719-066-6
Mass Media Moments in the United Kingdom, the USSR and the USA, by Gilder, Eric. - "Lucian Blaga" University of Sibiu Press, Romania. 2003 ISBN973-651-596-6