View source for XHDF-TDT

{{short description|Azteca Uno transmitter in Mexico City}}
{{Use mdy dates|date=June 2025}}
{{Infobox television station
| callsign               = XHDF-TDT
| logo                   = Logo Azteca Uno 2023.webp
| logo_size              = 200px
| logo_caption           = Logo used since 2023
| branding               = {{ubl|{{lang|es|italic=no|Azteca Uno}}|{{lang|es|italic=no|Azteca Uno Metropolitano}}}}
| digital                = 25 ([[UHF]])
| virtual                = 1{{mexico-VC|access-date=October 11, 2020}}
| translators            = ''see {{section link||Repeaters}}''
| affiliations           = {{ubl|'''1.1:''' [[Azteca Uno]]|'''1.2:''' Azteca Uno -1 hour}}
| founded                = {{start date and age|1968|9|1}}
| location               = [[Mexico City]]
| country                = MX
| callsign_meaning       = XH [[Distrito Federal (Mexico)|Distrito Federal]] (former name for administrative division containing Mexico City before 2016 unification into an autonomous entity)
| sister_stations        = [[XHIMT-TDT]], [[XHTVM-TDT]]
| owner                  = [[TV Azteca]]
| licensee               = Televisión Azteca, S.A. de C.V.
| former_callsigns       = XHDF-TV (1968–2015)
| former_affiliations    = [[Independent station|Independent]] (1968–1983)
| former_channel_numbers = {{ubl|'''Analog:''' 13 ([[VHF]], 1968–2015)|'''Virtual:''' 13 (2005–2016)}}
| erp                    = 468.030 kW{{mexico-inf|TV|access-date=July 1, 2014}}<!--http://rpc.ift.org.mx/rpc/pdfs/220515-TECNICA-009926.pdf-->
| coordinates            = {{coord|19|31|57.50|N|99|07|49.70|W|type:landmark_scale:2000}}
| licensing_authority    = [[Federal Telecommunications Institute|IFT]]
| website                = {{URL|http://www.tvazteca.com/aztecauno/}}
}}

'''XHDF-TDT''' (channel 1) is the [[flagship station]] of Mexico's [[Azteca Uno]] [[television network]], located in [[Mexico City]]. Azteca Uno can be seen in most major cities in Mexico through [[TV Azteca]]'s [[owned-and-operated]] transmitter network. XHDF provides [[high-definition television|HD]] programming to other transmitters and cable and satellite viewers.

==History==
===Initial years of operation===

The concession for XHDF-TV was awarded in 1968 alongside that of [[XEQ-TDT|XHTM-TV]] channel 8. The two stations were intended to come on in time for the [[1968 Summer Olympics]]. While the first programs were broadcast on September 1 with the transmission of the fourth government report of President [[Gustavo Díaz Ordaz]], full programs began with the opening of the Olympic Games on October 12. XHDF was owned by [[Grupo Radio Centro|Organización Radio Centro]] through concessionaire Corporación Mexicana de Radio y Televisión, S.A. de C.V. The station had studios and a transmitter at the [[Torre Latinoamericana]] along with a second facility on Calle Mina in the historic center of Mexico City, but XHDF primarily broadcast filmed series with fewer resources than its Mexico City competitors.

=== Nationalization ===
{{see also|Imevisión}}
In 1972, due to debts owed to the state-owned {{lang|es|Sociedad Mexicana de Crédito Industrial}} (Mexican Industrial Credit Society or SOMEX), XHDF and Corporación Mexicana de Radio y Televisión was nationalized.

The first director of the government-owned Canal 13 was Antonio Menéndez González, and after his death, he was succeeded by [[Enrique González Pedrero]], senator of the state of Tabasco from the [[Partido Revolucionario Institucional|PRI]]. Corporación Mexicana de Radio y Televisión, along with another state-owned enterprise, Tele-Radio Nacional, began receiving new television concessions as part of a national expansion of the Mexico City station into a national television network.

One of the first orders of business for Canal 13 was a relocation. On July 14, 1976, Canal 13's new facilities in the [[Ajusco]] area of Mexico City were formally inaugurated by President [[Luis Echeverría]]. The event was attended by various figures from the political and business sectors of the country, including Secretary of the Interior [[Mario Moya Palencia]] and Secretary of Communications and Transportation [[Eugenio Méndez Docurro]], as well as [[Emilio Azcárraga Milmo]], Romulo O'Farrill and [[Miguel Alemán Velasco]], who served as directors of [[Televisa]].

In 1983, the Mexican government reorganized its broadcast holdings. The result was the creation of the Mexican Television Institute, which changed its name to [[Imevisión]] in 1985. Imevisión comprised not only Canal 13, now known as {{lang|es|Red Nacional 13}}, but the former Televisión de la República Mexicana, with its [[XEIMT-TDT|channel 22 station]], and a new network known as {{lang|es|Red Nacional 7}} and broadcast in Mexico City by the brand-new [[XHIMT-TV]] (channel 7).

During the Imevisión years, Red Nacional 13 continued to broadcast commercial programming, although it featured some programs with a cultural focus, such as {{lang|es|Temas de Garibay}}, {{lang|es|Entre Amigos}} with Alejandro Aura, and several programs with the journalist Jorge Saldaña.

=== Privatization ===
{{see also|TV Azteca|Azteca Uno}}

In 1993, the administration of [[Carlos Salinas de Gortari]] auctioned off Imevisión and some other government-owned media ventures in various packages. Radio Televisión del Centro, headed by electronics store owner [[Ricardo Salinas Pliego]], bought all of the TV stations. The result was the creation of Televisión Azteca, which took its name from the holding company created for the largest of the packages: the Red Nacional 13, including XHDF.

== Technical information ==
=== Subchannels ===
The station's signal is [[multiplex (TV)|multiplexed]]:
{| class="wikitable"
|+Subchannels of XHDF-TDT
! scope = "col" | [[Digital subchannel#Mexico|Channel]]
! scope = "col" | [[Display resolution|Res.]]
! scope = "col" | [[Aspect ratio (image)|Aspect]]
! scope = "col" | Short name
! scope = "col" | Programming
|-
! scope = "row" | 1.1 
| [[1080i]] || rowspan=2 |[[16:9]] || rowspan=2 | XHDF || [[Azteca Uno]]
|-
! scope = "row" | 1.2 
| [[480i]] || Azteca Uno -1Hr
|}

===Repeaters===
XHDF-TDT has eight direct repeaters:

{{Mexico TV station table/top3}}
{{Mexico TV station table/entry3|RF=25|location=[[Pachuca]], [[Hidalgo (state)|Hgo.]]|erp=1.22 kW}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Tepeji del Río]], [[Hidalgo (state)|Hgo.]]|erp=4 kW}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Coacalco]], [[State of Mexico|Mex.]]|erp=.820 kW<ref>[https://rpc.ift.org.mx/vrpc/pdfs/40810_190812152303_9766.pdf RPC: #036312 Relocation — Shadow XHDF-TDT Coacalco, Mex.]</ref>}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Iztapalapa]]|erp=.770 kW}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Topilejo]]|erp=.064 kW}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Chimalhuacán]], [[State of Mexico|Mex.]]|erp=.220 kW}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Ixtapaluca]], [[State of Mexico|Mex.]]|erp=.515 kW<ref>[https://rpc.ift.org.mx/vrpc/pdfs/40810_190812152909_6052.pdf RPC: #036340 Relocation — Shadow XHDF-TDT Ixtapaluca, Mex.]</ref>}}
|-
{{Mexico TV station table/entry3|RF=25|location=[[Amecameca]], [[State of Mexico|Mex.]]|erp=.122 kW}}
|}

===Analog-to-digital conversion===
XHDF was among the first stations in the country to obtain approval to build a digital television station, doing so in May 2005. The initial digital facility broadcast with just 37.6&nbsp;kW, though its power was significantly raised ahead of the end of analog television. At midnight on December 17, 2015, XHDF analog on [[VHF]] channel 13 was shut off part of the IFT mandated transition from analog to digital television. In October 2016, the Azteca 13 network nationwide moved from virtual channel 13 to 1, with even the Mexico City station abandoning its longtime channel 13 designation. Ultimately, on January 1, 2018, the entire network was rebranded from Azteca Trece to Azteca Uno.

==References==
{{reflist}}

{{Mexico City TV}}
{{Mexican broadcast television}}

[[Category:1968 establishments in Mexico]]
[[Category:Azteca Uno transmitters|HDF-TDT]]
[[Category:Television channels and stations established in 1968]]
[[Category:Television stations in Mexico City|HDF-TDT]]