The term television channel generally refers to either a television station or its cable/satellite counterpart (both outlined below). A television station is a type of broadcast station that broadcasts both audio and Video to Television receivers in a particular area Satellite television is Television delivered by the means of Communications satellites as compared to conventional Terrestrial television and Cable Sometimes, especially outside US and in the context of cable/satellite television, it is confused with the term television network, which (when properly used) describes a group of geographically-distributed television stations that share affiliation/ownership and some or all of their programming with one another. A television network is a distribution network for Television content whereby a central operation provides programming for many Television stations A television network is a distribution network for Television content whereby a central operation provides programming for many Television stations
The term may also refer to a physical or virtual location over which a television channel (in the above sense) is distributed. For example, in Northern America, "channel 2" refers to the broadcast band of 54 to 60 MHz, with carrier frequencies of 55. The hertz (symbol Hz) is a measure of Frequency, informally defined as the number of events occurring per Second. In Telecommunications, a carrier wave, or carrier is a Waveform (usually Sinusoidal) that is modulated (modified with an input signal Frequency is a measure of the number of occurrences of a repeating event per unit Time. 25 MHz for NTSC analog video (VSB) and 59. NTSC ( National Television System Committee) is the Analog television system used in the United States, Canada, Japan, Mexico 75 MHz for analog audio (FM). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider.
This terminology may be muddled somewhat in other jurisdictions, for instance Europe, where terrestrial channels are commonly mapped from physical channels to common numerical positions (i. In Law, jurisdiction (from the Latin ius iuris meaning "law" and dicere meaning "to speak" is the practical Authority e. BBC One does not broadcast on any particular "channel 1" but is nonetheless mapped to the "1" input on most British television sets). Analogue terrestrial television in the United Kingdom is traditionally the method most people in the UK, Channel Islands and the Isle of Man used to receive On digital platforms, such (location) channels are usually arbitrary, due to virtual channels. In Telecommunications, a logical channel number (LCN also known as virtual channel in North America, is a channel designation which differs
Television station
A television station is a type of broadcast station that broadcasts both audio and video to television receivers in a particular area. A television station is a type of broadcast station that broadcasts both audio and Video to Television receivers in a particular area For the band see Broadcast (band Broadcasting is the distribution of audio and/or Video signals which transmit Sound' is Vibration transmitted through a Solid, Liquid, or Gas; particularly sound means those vibrations composed of Frequencies Video is the technology of electronically capturing, Recording, processing storing transmitting and reconstructing a sequence of Still images Television ( TV) is a widely used Telecommunication medium for sending ( Broadcasting) and receiving moving Images, either monochromatic This article is about a radio receiver for other uses see Radio (disambiguation. Traditionally, TV stations made their broadcasts by sending specially encoded radio signals over the air, called terrestrial television. Radio is the transmission of signals by Modulation of electromagnetic waves with frequencies below those of visible Light. Terrestrial television is a term which refers to modes of television broadcasting which do not involve satellite transmission Individual television stations are usually granted licenses by a government agency to use a particular section of the radio spectrum (a channel) through which they send their signals. The verb license or grant license means to give permission The noun license is the document demonstrating that permission A government agency is a permanent or semi-permanent organization in the Machinery of government that is responsible for the oversight and administration of specific functions Radio frequency ( RF) is a Frequency or rate of Oscillation within the range of about 3 Hz to 300 GHz Channel, in communications (sometimes called communications channel) refers to the medium used to convey Information from a Some stations use LPTV broadcast translators to retransmit to further areas. Low-power broadcasting is the concept of Broadcasting at very low power and low cost to a small community area A repeater is an electronic device that receives a signal and Retransmits it at a higher level and/or higher power or onto the other side of an obstruction
Television stations are now in the process of converting from analogue (NTSC, PAL, or SECAM) to digital TV (ATSC, DVB, or ISDB). An analog or analogue signal is any continuous signal for which the time varying feature (variable of the signal is a representation of some other NTSC ( National Television System Committee) is the Analog television system used in the United States, Canada, Japan, Mexico PAL, short for Phase Alternating Line, is a colour -encoding system used in Broadcast television systems in large parts of the world SECAM, also written SÉCAM ( Séquentiel couleur à mémoire, French for "Sequential Color with Memory" is an analog color television system Digital television (DTV is the sending and receiving of moving images and sound by discrete ( digital) signals in contrast to the analog signals used by For the chemical compound see Divinylbenzene. Digital Video Broadcasting ( DVB) is a suite of internationally accepted Integrated Services Digital Broadcasting (ISDB is a Japanese standard for Digital television (DTV and Digital radio used by the country's radio
Non-broadcast television channels
Because some regions have had difficulty picking up over-the-air signals (particularly in mountainous areas), alternative means of distribution such as direct-to-home satellite and cable television have been introduced. Terrestrial television is a term which refers to modes of television broadcasting which do not involve satellite transmission A mountain is a Landform that extends above the surrounding Terrain in a limited area with a peak Television channels specifically built to run on cable or satellite blur the line between TV station and TV network. That fact led some early cable channels to call themselves superstations. For the UK radio overnight sustaining service see The Superstation.
Satellite and cable have created changes. Broadcast TV stations in an area can sign up to be carried on cable (called "must-carry" in the U. In Cable television, governments apply a must-carry regulation stating that locally-licensed television stations must be carried on a cable provider's system S. ), but content providers like TLC cannot. TLC (generally called as The Learning Channel) is a cable TV network in the US and Canada, that carries a variety of informational and They are not licensed to run broadcast equipment like a station, and they do not regularly provide content to licensed broadcasters either. Furthermore, a distributor like TNT may begin producing its own programming, and shows presented exclusively on cable/satellite by one distributor may be syndicated to broadcast stations. Turner Network Television, usually referred to as TNT, is an American cable TV network created by media mogul Ted Turner and currently owned In Broadcasting, syndication is the sale of the right to broadcast Radio shows and Television shows to multiple individual stations without going through The cost of creating a nationwide channel has been reduced and there has been a huge increase in the number of such channels, with most catering to a small group.
From the definitions above, use of the terms "network" or "station" in reference to nationwide cable/satellite channels is technically inaccurate. However, this is an arbitrary, inconsequential distinction, and varies from company to company. Indeed, the term "cable network" has entered into common usage in the United States in reference to such channels. This article is about the type of television channel For cable television infrastructure i There is even some geographical separation among "national" cable/satellite channels in the U. S. , be it programming (i. e. the Fox Sports Net group of regional sports channels, which share several programs), or simply regionalized advertising inserted by the local cable company. The Fox Sports Regional Networks, or simply Fox Sports Net (FSN are a collection of cable TV Regional sports networks owned and operated by News
Should a legal distinction be necessary between a (location) channel as defined above and a television channel in this sense, the terms "programming service" (e. g. [1]) or "programming undertaking" (e. g. [2]) may be used instead for the latter definition.
A person viewing by cable or satellite might not know what kind of organization is responsible for a given program, especially if it is syndicated, so what seems to be a station or a network may be neither.
See also
A barker channel is a TV channel that is used almost entirely for promotion and Advertising, usually Marketing various Features of The lists of television channels' are grouped by name country or language': Lists of television channels by continent List of television channels The following tables show the frequencies assigned to broadcast Television channels in various regions of the world along with the ITU letter designator for the system usedDictionary
television channel
-noun
- A specific radio frequency or band of frequencies used for transmitting television.
- A station or broadcaster using the band.
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