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XHFN-TV
XHFN-TDT is a television station in Monterrey, Nuevo Leon, Mexico. The station carries the Azteca 7 network and also serves as the key station of the Azteca Noreste regional network, serving the northeastern states of Mexico with regional news and programming. History XHFN signed on in February 1974 on channel 8, under the auspices of CEMPAE (Centro para el Estudio de Medios y Procedimientos Avanzados de la Educación, or "Center for the Study of Advanced Media and Education Processes"). It primarily broadcast educational programs and telecourses. CEMPAE was shuttered on January 20, 1983, with the Secretariat of Public Education absorbing its assets. Two months later, upon the creation of the Instituto Mexicano de la Televisión (abbreviated Imevisión), XHFN became part of the new federal agency. As an Imevisión station, XHFN broadcast programs from its two networks as well as local Monterrey productions, including local news. In 1992, XHFN was part of the media package that be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Imevisión
The Instituto Mexicano de la Televisión (''Mexican Television Institute''), known commercially as Imevisión after 1985, was a state broadcaster and federal government agency of Mexico. At its height, Imevisión programmed two national networks and additional local stations in Mexico City, Chihuahua, Ciudad Juárez, Guadalajara, Mexicali, Tijuana and Monterrey. As the Mexican government moved toward privatization, and in light of financial sustainability issues, most of Imevisión was sold in 1992 to a group headed by Ricardo Salinas Pliego, which came to be known as Televisión Azteca. The government retained one of Imevisión's local stations, in Mexico City, and converted it into a cultural channel under the auspices of Conaculta. History 1972–83: The government gets into television On March 15, 1972, the federal government expropriated the assets of Mexico City television station XHDF-TV, channel 13, as payment for debts the station held to state financier SOMEX. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultra High Frequency
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter (one decimeter). Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF (very high frequency) or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications. The IEEE defines the UHF radar band as frequencies between 300 MHz and 1 GHz. Two other IEEE radar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A+ (television Channel)
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish it fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
480i
480i is the video mode used for standard-definition digital television in the Caribbean, Japan, South Korea, Taiwan, Philippines, Laos, Western Sahara, and most of the Americas (with the exception of Argentina, Paraguay, and Uruguay). The ''480'' identifies a vertical resolution of 480 lines, and the ''i'' identifies it as an interlaced resolution. The field rate, which is 60 Hz (or 59.94 Hz when used with NTSC color), is sometimes included when identifying the video mode, i.e. 480i60; another notation, endorsed by both the International Telecommunication Union in BT.601 and SMPTE in SMPTE 259M, includes the frame rate, as in 480i/30. The other common standard definition digital standard, used in the rest of the world, is 576i. It originated from the need for a standard to digitize analog TV (defined in BT.601) and is now used for digital TV broadcasts and home appliances such as game consoles and DVD disc players. Although related, it should not be confused wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1080i
1080i (also known as Full HD or BT.709) is a combination of frame resolution and scan type. 1080i is used in high-definition television (HDTV) and high-definition video. The number "1080" refers to the number of horizontal lines on the screen. The "i" is an abbreviation for "interlaced"; this indicates that only the even lines, then the odd lines of each frame (each image called a video field) are drawn alternately, so that only half the number of actual image frames are used to produce video. A related display resolution is 1080p, which also has 1080 lines of resolution; the "p" refers to progressive scan, which indicates that the lines of resolution for each frame are "drawn" on the screen in sequence. The term assumes a widescreen aspect ratio of 16:9 (a rectangular TV that is wider than it is tall), so the 1080 lines of vertical resolution implies 1920 columns of horizontal resolution, or 1920 pixels × 1080 lines. A 1920 pixels × 1080 lines screen has a total of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Television Network
A television network or television broadcaster is a telecommunications network for distribution of television program content, where a central operation provides programming to many television stations or pay television providers. Until the mid-1980s, television programming in most countries of the world was dominated by a small number of terrestrial networks. Many early television networks (such as NBC, the ABC, or the BBC) evolved from earlier radio networks. Overview In countries where most networks broadcast identical, centrally originated content to all of their stations and where most individual television transmitters therefore operate only as large " repeater stations", the terms "television network", "television channel" (a numeric identifier or radio frequency) and "television station" have become mostly interchangeable in everyday language, with professionals in television-related occupations continuing to make a differentiation between them. Within the industry, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Video Resolution
The display resolution or display modes of a digital television, computer monitor or display device is the number of distinct pixels in each dimension that can be displayed. It can be an ambiguous term especially as the displayed resolution is controlled by different factors in cathode ray tube (CRT) displays, flat-panel displays (including liquid-crystal displays) and projection displays using fixed picture-element (pixel) arrays. It is usually quoted as ', with the units in pixels: for example, ' means the width is 1024 pixels and the height is 768 pixels. This example would normally be spoken as "ten twenty-four by seven sixty-eight" or "ten twenty-four by seven six eight". One use of the term ''display resolution'' applies to fixed-pixel-array displays such as plasma display panels (PDP), liquid-crystal displays (LCD), Digital Light Processing (DLP) projectors, OLED displays, and similar technologies, and is simply the physical number of columns and rows of pixels creating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Televisión Azteca
TV Azteca, S.A.B. de C.V. is a Mexican multimedia conglomerate owned by Grupo Salinas. It is the second-largest mass media company in Mexico after Televisa. It primarily competes with Televisa as well as some local operators. It owns two national television networks, Azteca Uno and Azteca 7, and operates two other nationally distributed services, adn40 and a+. All three of these networks have transmitters in most major and minor cities. TV Azteca also operates ''Azteca Trece Internacional'', reaching 13 countries in Central and South America, and part of the Azteca América network in the United States. Its flagship program is the newscast '' Hechos''. History Formation In the early 1990s, the presidency of Carlos Salinas de Gortari privatized many government assets. Among them was the Instituto Mexicano de la Televisión, known as Imevisión, which owned two national television networks (Red Nacional 7 and Red Nacional 13) and three local TV stations. In preparation for the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Secretariat Of Public Education (Mexico)
The Mexican Secretariat of Public Education ( in Spanish ''Secretaría de Educación Pública'', ''SEP'') is a federal government authority with cabinet representation and the responsibility for overseeing the development and implementation of national educational policy and school standards in Mexico. Its headquarters has several buildings distributed throughout the country, but its main offices, initially confined to the Old Dominican Convent of the Holy Incarnation in the oldest borough of Mexico City, have extended to the House of the Marqués de Villamayor, (also known as the ''Casa de los adelantados de Nueva Galicia'', built in 1530), the Old House of don Cristóbal de Oñate, a three-time governor and general captain of New Galicia (also built in 1530), and the Old Royal Customs House (built in 1730–1731). Some of the buildings were decorated with mural paintings by Diego Rivera and other notable exponents of the Mexican muralist movement of the twentieth century, Dav ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virtual Channel
In most telecommunications organizations, a virtual channel is a method of remapping the ''program number'' as used in H.222 Program Association Tables and Program Mapping Tables to a channel number that can be entered via digits on a receiver's remote control. Often, "virtual channels" are implemented in digital television, helping users to find a desired channel easily, or easing the transition from analogue to digital broadcasting in general. The practice of assigning virtual channels is most common in those parts of the world where TV stations were colloquially named after the RF channel they were transmitting on ("Channel 6 Springfield"), as it was common in North America during the analogue TV era. In other parts of the world, such as Europe, virtual channels are rarely used or needed, as TV stations there identify themselves by name, not by RF channel or callsign. A "virtual channel" was first used for DigiCipher 2 in North America. It was later used and referred to as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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