XHOF-FM

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XHOF-FM, also known as Reactor 105.7, is a radio station in Mexico City that plays alternative rock music, and hip hop mainly in English and Spanish. Its broadcast frequency is 105.7 MHz. The transmitter site is located in Ajusco south of the city. XHOF-FM used to broadcast in HD., but the digital signal became silent in early 2020 due to operating costs. The Department of the Federal District (DDF) solicited a permit for a radio station in 1967. However, the station seemed cursed from the beginning. The Department had a hard time procuring the permit; one month after it was issued, the government was still evaluating the technical parameters. Additionally, the original callsign of XEDO-FM had to be changed (in April 1968) when it was discovered that a Michoacán radio station had been using that unique identifier since 1961. In March 1969, the SCT informed the DDF that the latter still had not complied with the requirements for the construction of the station. "Radio Departamento", however, soon got on track to launch May 1, 1969, from the top floor of the Departamento del Distrito Federal building, with 161 square metres (1,730 ft) of floor space to work with.