Wednesday, December 19, 2012

the broadcast update.....the television


The television station is a business entity, or other organization, such as the operator (ATV) amateur television, which transmits (broadcasts) content over terrestrial television. A television transmission can occur through analog television signals or, recently, by digital television signals. Television system standards set by the government, and these vary across the world. Television stations broadcasting via the anolog are usually limited to one television channel, but digital television allows broadcasters via subchannels as well. The "TV station" The term is usually applied to terrestrial television stations, and not to cable or satellite broadcasts.




Television stations usually require a broadcast license from a government agency that sets requirements and restrictions station. In the United States, for example, defines a television license broadcast range, or geographic area, the station is limited, allocating broadcast frequencies of the radio spectrum for transmitting the station, setting limits on what kind of program can be programmed to broadcast television, and requires stations to broadcast a minimum amount certain types of programs, such as public affairs messages, among others.



Most commercial television station independently owned, but many are either affiliated with or television network owned-and-operated (O & O) by the television networks. Another form of a television station can take is a non-commercial educational (NCE) and public broadcasters consider. To avoid concentration of media ownership of television stations, government regulations in most countries generally restrict ownership of television stations with television networks and other media operators, but the rules vary. Some countries have set up national television networks, in which individual television stations act as repeaters only national program. In these countries, the local television station has no station identification and, from the point of view of the consumer, there is no practical difference between the networks and stations, with only small changes in the areas of programming, such as local television news.

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