# XHOF-FM

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Radio station in Mexico City

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XHOF-FM Mexico City Mexico Frequency 105.7 MHz[1] Branding Reactor 105 Programming Format Urban Contemporary, Rock music Ownership Owner Instituto Mexicano de la Radio[1] Sister stations XEB-AM, XEDTL-AM, XEMP-AM, XEQK-AM;[2] XHIMER-FM, XHIMR-FM;[1] XERMX-OC (defunct) History First air date May 1, 1969[3] Former call signs XEDO-FM (1967-68, prior to launch)[3] Technical information Class B ERP 36,080 watts[1] HAAT 28.6 meters (94 ft) Transmitter coordinates 19°16′10.1″N 99°13′59.4″W / 19.269472°N 99.233167°W / 19.269472; -99.233167 Links Webcast XHOF-FM Website http://www.imer.mx/reactor/

**XHOF-FM**, also known as **Reactor 105.7**, is a radio station in [Mexico City](/source/Mexico_City) that plays alternative [rock music](/source/Rock_music), and [hip hop](/source/Hip_hop_music) mainly in English and Spanish. Its broadcast frequency is [105.7 MHz](/source/105.7_FM). The transmitter site is located in Ajusco south of the city.

XHOF-FM used to broadcast in [HD](/source/HD_Radio).,[4] but the digital signal became silent in early 2020 due to operating costs.[5][6]

## History

### Radio Departamento

Under the *Departamento del Distrito Federal*, XHOF-FM broadcast from this building on the [Zócalo](/source/Z%C3%B3calo)

The Department of the [Federal District](/source/Federal_District_(Mexico)) (DDF) solicited a permit for a radio station in 1967.[7][3] 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](/source/Secretariat_of_Communications_and_Transport_(Mexico)) 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 ft2) of floor space to work with.[3]

### To IMER

In 1983, the [Instituto Mexicano de la Radio](/source/Instituto_Mexicano_de_la_Radio) was created. IMER included all of the stations operated by the executive branch of the federal government, XHOF included. However, it took the SCT until 2005 to transfer the permit of XHOF to IMER, on the fourth request by the latter. From 1992 to 1994, XHOF was operated by Radio S.A. (RASA) under contract.[3] Meanwhile, the station went through various names and formats: Radio Cosmos, Estéreo Joven, Láser FM, Conexión Acústica and Órbita 105.7. In 2005, the Legislative Assembly of the Federal District asked then-mayor [Andrés Manuel López Obrador](/source/Andr%C3%A9s_Manuel_L%C3%B3pez_Obrador) to take action to "recover" control of the station from IMER, but López Obrador, like his predecessors, did not take any action.[3]

The current Reactor format was formed after the closure of [Radioactivo 98.5](/source/XHDL-FM) and the old Órbita 105.7 format. Some of the most popular and relevant radio hosts of the former stations are now working for Reactor. Because of the official nature of the radio station there is a strong tendency to promote Spanish-speaking or Mexican bands, a situation that has defined the personality of the project as the only opportunity for the independent market of alternative or out-of-the-mainstream bands in Mexico.

In 2019, the [SPR](/source/Sistema_P%C3%BAblico_de_Radiodifusi%C3%B3n_del_Estado_Mexicano)'s XHSPRM-FM 103.5 in [Mazatlán](/source/Mazatl%C3%A1n) flipped from simulcasting [Radio México Internacional](/source/Radio_M%C3%A9xico_Internacional) to simulcasting Reactor.

## References

1. ^ [***a***](#cite_ref-mexico-inf-FM_1-0) [***b***](#cite_ref-mexico-inf-FM_1-1) [***c***](#cite_ref-mexico-inf-FM_1-2) [***d***](#cite_ref-mexico-inf-FM_1-3) [Instituto Federal de Telecomunicaciones](/source/Federal_Telecommunications_Institute). [Infraestructura de Estaciones de Radio FM](http://www.ift.org.mx/sites/default/files/contenidogeneral/industria/memoriafm160518.pdf). Last modified 2018-05-16. Retrieved 2014-07-01. Technical information from the [IFT Coverage Viewer](http://mapasradiodifusion.ift.org.mx/CPCREL-web/).

1. **[^](#cite_ref-mexico-inf-AM_2-0)** [Instituto Federal de Telecomunicaciones](/source/Federal_Telecommunications_Institute). [Infraestructura de Estaciones de Radio AM](http://www.ift.org.mx/sites/default/files/contenidogeneral/industria/memoriaam160518.pdf). Last modified 2018-05-16. Retrieved 2014-07-01. Technical information from the [IFT Coverage Viewer](http://mapasradiodifusion.ift.org.mx/CPCREL-web/).

1. ^ [***a***](#cite_ref-estac_3-0) [***b***](#cite_ref-estac_3-1) [***c***](#cite_ref-estac_3-2) [***d***](#cite_ref-estac_3-3) [***e***](#cite_ref-estac_3-4) [***f***](#cite_ref-estac_3-5) Laura Islas Reyes, ["La estación maldita"](http://www.etcetera.com.mx/articulo.php?articulo=131) [Archived](https://web.archive.org/web/20141222090804/http://www.etcetera.com.mx/articulo.php?articulo=131) 2014-12-22 at the [Wayback Machine](/source/Wayback_Machine), Etcétera 1 March 2007

1. **[^](#cite_ref-4)** [http://hdradio.com/mexico/estaciones](http://hdradio.com/mexico/estaciones) HD Radio Guide for Mexico

1. **[^](#cite_ref-5)** ["Crisis en la radio pública mexicana: estaciones sin locutores y renuncias bajo protesta sacuden al IMER"](https://www.infobae.com/america/mexico/2019/06/26/crisis-en-la-radio-publica-mexicana-estaciones-sin-locutores-y-renuncias-bajo-protesta-sacuden-al-imer/). *infobae*. June 26, 2019.

1. **[^](#cite_ref-6)** Muñiz, Nora (June 26, 2019). ["Cortes presupuestales del IMER cancelan 4 emisoras: ¿qué está pasando en la radio pública?"](https://plumasatomicas.com/desarme/cultura/cortes-presupuestales-del-imer-cancelan-4-emisoras-que-esta-pasando-en-la-radio-publica/). *Plumas Atómicas*.

1. **[^](#cite_ref-7)** ["XHOF-FM permit"](https://rpc.ift.org.mx/vrpc/pdfs/0902526480037db9.pdf) (PDF).

## External links

- (in Spanish) [XHOF-FM](https://web.archive.org/web/20150102021449/http://www.imer.mx/reactor/) — official page

v t e Instituto Mexicano de la Radio Stations in Mexico City XEDTL 660 XEMP 710 XEB 1220 XEQK 1350 XHIMER 94.5 XHOF 105.7 XHIMR 107.9 Elsewhere in Mexico XHCAH 89.1 XHYUC 92.9 XHEMIT 94.9 XHSCO 96.3 XHLAC 99.7 XHUAN 102.5 XHFQ 103.1 XHRF 103.9 XHUAR 106.7 XHCHZ 107.9 Defunct/former IMER stations XERA 760 XETEB 920 XEBCO 1210 Radio México Internacional (XERMX-OC from 1969 to 2004) See Category:Instituto Mexicano de la Radio

v t e Radio stations in Mexico City By AM frequency 540 560 590 620 660 690 710 730 760 7901 830 860 900 940 970 1000 1030 1060 1080 1110 1130 1150 1180 1220 1260 1320 1350 1380 1410 1440 1470 1500 1530 1590 1670 By SW frequency 4.8 6.01 6.185 9.6 By FM frequency 88.1 88.9 89.7 90.5 90.9 91.3 92.1 92.9 93.7 94.1 94.5 95.3 95.7 96.1 96.5 96.9 97.7 98.5 99.3 100.1 100.9 101.7 102.5 103.3 104.1 104.9 105.3 105.7 106.5 106.92 107.3 107.9 Digital radio by frequency & subchannel 88.1-1 90.9-1 90.9-2 91.3-1 92.1-1 93.7-1 95.7-1 96.5-1 97.7-1 98.5-1 98.5-2 103.3-1 104.1-1 105.3-1 107.3-1 107.3-2 By call sign XEABC XEAI XEANAH XEARZ XEB XEBS XECHAP XECO XECPAE XEDA-FM XEDF XEDF-FM HD2 HD3 HD4 XEDTL XEEST XEFR XEITE XEJP XEJP-FM XEL XEMP XEN XENK XEOC XEOI XEOY XEOYE-FM XEPH XEPPM XEQ XEQ-FM XEQK XEQR XEQR-FM HD2 XERC1 XERC-FM XERED XERFR XERFR-FM HD2 HD3 HD4 XERTA XETUL XEUN XEYU XEUN-FM XEUR XEVOZ XEW XEW-FM XEWF XEX XEX-FM XHDFM XHDL XHEP XHEXA XHFAJ HD2 XHFO XHIMER HD2 HD3 XHIMR HD2 HD3 XHINFO XHIPN XHM XHMM XHMVS XHOF XHPOP XHRED XHSCCA2 XHSH XHSON XHUAM XHUIA HD2 Internet Concepto Radial Radio México Internacional Defunct XEDA 1290 XENET 1320 XEINFO 1560 XERMX 5.985/9.705/11.77/15.43/17.765 XHFM 94.1 XHCDMX 106.1 Nearby regions Puebla City Other states Hidalgo State of Mexico Morelos Querétaro Tlaxcala See also List of radio stations in Mexico City Notes 1. Station is silent 2. Unbuilt or under construction

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