{{short description|Radio station in Mexico City}} {{Infobox radio station dual | name1 = XEDF-AM | name2 = XEDF-FM | logo = | city = [[Mexico City]] | country = MX | area = [[Greater Mexico City]] | frequency1 = 1500 kHz | frequency2 = 104.1 MHz {{HD Radio}} | branding = Radio Fórmula Segunda Cadena | format = [[Talk radio]] | owner = Grupo Fórmula | licensee = La B Grande, S.A. de C.V.<ref>[https://rpc.ift.org.mx/vrpc/pdfs/33514_211118031952_3435.pdf RPC: #054843 Concessionaire Change by Internal Reorganization — XEDF-FM]</ref><ref>[https://rpc.ift.org.mx/vrpc/pdfs/33906_211118032241_8359.pdf RPC: #054844 Concessionaire Change by Internal Reorganization — XEDF-AM]</ref> | sister_stations = [[XEAI-AM]], [[XERFR-AM]], [[XERFR-FM]] | airdate1 = 1970s | licensing_authority = [[Telecommunications Regulatory Commission|CRT]] | airdate2 = 1984 {{ubl|AM: 1970s|FM: 1984}} | former_callsigns1 = XERH-AM (1970s–1980s); XEAI-AM (1980s–2000) | callsign_meaning = "Distrito Federal", former name for Mexico City | class1 = B | class2 = C1 {{ubl|AM: [[list of broadcast station classes#AM|B]]|FM: [[list of broadcast station classes#FM|C1]] }} | power1 = 50,000 [[watt]]s ([[daytimer|days only]]){{mexico-inf|AM|accessdate=2015-06-15}} | erp2 = 58,138 watts{{mexico-inf|FM|accessdate=2015-06-15}} | haat2 = {{convert|126.8|m|ft|sp=us}} | coordinates1 = {{coord|19|22|47.3|N|99|06|09.2|W}} | coordinates2 = {{coord|19|26|01.4|N|99|08|27.2|W}} | webcast = {{ubl|AM: {{listenlive|https://www.radioformula.com.mx/en-vivo/1500-am}}|FM: {{listenlive|https://www.radioformula.com.mx/en-vivo/1041-fm}}}} | website = {{URL|1=https://www.radioformula.com.mx/|2=radioformula.com.mx}} }}
'''XEDF-AM''' (1500 [[Hertz|MHz]]) and '''XEDF-FM''' (104.1 [[Hertz|MHz]]) are [[commercial radio|commercial]] [[radio station]]s in [[Mexico City]], owned by Grupo Fórmula. They are the [[flagship (broadcasting)|flagship station]]s of [[Radio Fórmula]]'s "Segunda Cadena" (Second Network), [[simulcast]]ing a [[talk radio]] [[radio format|format]].
By day, XEDF-AM is powered at 50,000 [[watt]]s. But [[1500 AM]] is a United States [[Clear-channel station|clear-channel frequency]]. So to avoid interference, XEDF-AM is a [[daytimer]] station and must go off the air at night. The AM [[transmitter]] is off Avenida Rio Churubusco, next to the Zentralia Churubusco Shopping Centre, in the southeast section of Mexico City.<REF>[https://fccdata.org/?lang=en&mex=FER033906CO-105493&mexsvc=AM FCCdata.org/XEDF-AM]</REF>
XEDF-FM is a [[list of broadcast station classes#FM|Class C]] station with an [[effective radiated power]] (ERP) of 58,138 [[watt]]s.<ref>[https://fccdata.org/?lang=en&mex=FER033514CO-105493&mexsvc=FM FCCdata.org/XEDF-FM]</ref> The FM transmitter is atop [[Torre Latinoamericana]]. XEDF-FM broadcasts using [[HD Radio]] technology, carrying several [[digital subchannel|subchannel]]s, including a one-hour timeshift feed of XEDF-FM, the 1500 AM feed, and a [[jazz music]] format known as "Jazz FM."{{mexico-MP|accessdate=31 October 2018}}
==Programming== Grupo Fórmula owns several talk stations in Mexico City. The primary stations are [[XERFR-FM]] 103.3 and [[XERFR-AM]] 970, airing the "Radio Fórmula" network. XEDF-AM-FM carry the secondary talk radio network, "Segundo Cadena."
The Segunda Cadena has its own schedule of personalities. They include [[Ciro Gómez Leyva]], Manuel Feregrino, [[Enrique Acevedo]], Javier Risco, Jaime Núñez, [[Juan Becerra Acosta]], Leonardo Curzio, Michelle Rivera and Juan Pablo Pérez Díaz. There are entertainment shows with [[Marco Antonio Regil]], Flor Rubio and Mariana Braun; sports shows with Heriberto Murrieta and a car radio show with Arturo Rivera.
==History== ===XEDF-AM=== 1500 AM began its life in the 1970s. Its original [[call sign]] was XERH-AM. It called itself "La Tropical Grande de México" with [[tropical music]].<ref>[http://radiofmmx.blogspot.com/2013/09/xedf-am.html XEDF-AM History]</ref> In the 1980s, it became XEAI-AM (call letters now on 1470 AM). It adopted several formats, such as tropical music and general music. In 1998, the [[oldies]] "Vida" format at 1470 AM, then known as XESM-AM, was moved to 1500.
It was not until 2000 that 1500 AM was renamed XEDF-AM. It became a news/talk station as part of Radio Fórmula's second national talk network, "Segunda Cadena."
===XEDF-FM=== The station [[sign-on|signed on]] the air in 1984. It was known as "Jazz FM", a station remembered as a milestone in the history of jazz in Mexico. Despite praise for a format not otherwise available on Mexican radio, the ratings were not sustainable.
In 1992, XEDF-FM became [[tropical music|tropical]]-formatted Radio Uno, attempting to compete with [[XEQ-FM]] 92.9 "Tropi-Q" and [[XHFO-FM]] 92.1 "La Z". During this era Radio Uno was considered an important station in the promotion of new subgenres of [[cumbia music|cumbia]] as well as [[grupera]] music.<ref>[http://radiofmmx.blogspot.com/2013/09/xedf-fm.html XEDF-FM History]</ref> After eight years, management decided to end music on the station.
In 2000, XEDF-FM became the keystone of Radio Fórmula's Segunda Cadena (or Cadena Radio Uno, as it was known for a time). It began broadcasting a news and talk format different from the original Radio Fórmula feed.
==References== {{reflist}}
{{Mexico City Radio}}
[[Category:1984 establishments in Mexico]] [[Category:News and talk radio stations in Mexico]] [[Category:Radio Fórmula]] [[Category:Radio stations established in 1984]] [[Category:Radio stations in Mexico City]]