XERC-AM is a radio station based in Mexico City on 790 kHz, currently silent.
In the 1960s it became "La Campeona 7-90", a subname/slogan of "Radio Éxitos", a pioneer in broadcasting Spanish-language rock, but mostly airing then-current music in English from all genres.
Its famed Beatles Club program, which began in 1964, remained on the station for 25 years and later moved to FM on "Universal" (XEQR-FM until December 4, 1998, XHFO-FM until May 13, 2016, XHRED-FM until October 30, 2019 and since June 1, 2020, and XERC-FM between October 31, 2019 and May 29, 2020), where it still airs to this day.
On October 21, 1990, the station flipped to an oldies Spanish music format as "El Fonógrafo" (The Phonograph).
On June 21, 2019, the Federal Telecommunications Institute authorized GRC to relocate XERC-AM to the transmitter site of XEB-AM, owned by the Instituto Mexicano de la Radio.