103.7 Stereobit (Ciudad Valles)

STEREOBIT 103.7 (XHIR-FM) is a radio station on 103.7 FM in Ciudad Valles, San Luis Potosí, currently known as Stereobit.

The station traces its roots to XEIR-AM 1410, which received its concession on August 28, 1988, though it had first been put out for bid in 1972. The losing bidders tried to dislodge concessionaire Enrique Cárdenas González, first before the Technical Consultative Commission and then in the courts. Sindulfo Martínez Manzanares and Oliva B. Navarro received an amparo against him, but the courts ultimately ruled in Cárdenas González's favor and XEIR was cleared to begin operations. It ran as a 1,000-watt daytimer for its first three months before being allowed to boost power to 5 kW day/.5 kW night in November. Martínez Manzanares and Navarro kept fighting into the 2000s, but after failing to provide certain documents to the courts in 2001, their case ran out of time.

XEIR received approval to migrate to FM in April 2012. That year, XEIR and XHIR-FM were transferred to Laura Cárdenas del Avellano. In 2015, rights for XHIR were transferred to Organización Radio Valles.

XHIR-FM moved to 103.7 MHz on February 19, 2018, in order to clear 106-108 MHz for community and indigenous stations, as a condition of its concession renewal. The station reverted to the "Stereobit" name after a brief stint as Regional Mexican outlet "La Mexicana" from 2017 to 2019.