Broadcasting on 107.9 FM, XHEMA/XEMA is owned by Grupo Radiofónico B-15 and carries the national La Mejor format from MVS Radio.

It was owned by José Miguel Acevedo Mora and broadcast on 1340 kHz.

On January 13, 1972, it was sold to Hilda Gómez de Bonilla, who moved the station to 690 kHz.

In 2011, XEMA received authorization to move to FM on 107.1 MHz, with the callsign XHEMA-FM.

However, it did not remain on its new frequency long, as in September 2013, XHEMA moved to 107.9 MHz and increased power to 100,000 watts.