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A television channel, or TV channel, is a terrestrial frequency or virtual number over which a television station or television network is distributed. For example, in North America, channel 2 refers to the terrestrial or cable band of 54 to 60 MHz, with carrier frequencies of 55.25 MHz for NTSC analog video (VSB) and 59.75 MHz for analog audio (FM), or 55.31 MHz for digital ATSC (8VSB). Channels may be shared by many different television stations or cable-distributed channels depending on the location and service provider
Terrestrial television or over-the-air television (OTA) is a type of television broadcasting in which the content is transmitted via radio waves from the terrestrial (Earth-based) transmitter of a TV station to a TV receiver having an antenna. The term terrestrial is more common in Europe and Latin America, while in Canada and the United States it is called over-the-air or simply broadcast. This type of TV broadcast is distinguished from newer technologies, such as satellite television, in which the signal is transmitted to the receiver from an overhead satellite; cable television, in which the signal is carried to the receiver through a cable; and Internet Protocol television, in which the signal is received over an Internet stream or on a network utilizing the Internet Protocol. Terrestrial television stations broadcast on television channels with frequencies between about 52 and 600 MHz in the VHF and UHF bands. Since radio waves in these bands travel by line of sight, reception is generally limited by the visual horizon to distances of 64–97 kilometres (40–60 mi), although under better conditions and with tropospheric ducting, signals can sometimes be received hundreds of kilometers distant.
Television broadcasting in Greece began in 1966, preceded in 1951 by statute 1963 permitting television broadcasting.
TX Network (TXN) is a commercial television network in Japan owned by Nikkei, Inc. The "TX" is taken from the callsign of its flagship station, TV Tokyo. It is also known as TV Tokyo Network.
An independent station is a broadcast station, usually a television station, not affiliated with a larger broadcast network. As such, it only broadcasts syndicated programs it has purchased; brokered programming, for which a third party pays the station for airtime; and local programs that it produces itself.
WTVC is a television station in Chattanooga, Tennessee, United States, affiliated with ABC and Fox. The station is owned by Sinclair Broadcast Group, and maintains studios on Benton Drive in Chattanooga; its transmitter is located on Signal Mountain in the town of Walden.
KSTR-DT is a television station licensed to Irving, Texas, United States, broadcasting the Spanish-language UniMás network to the Dallas–Fort Worth metroplex. It is owned and operated by TelevisaUnivision alongside Garland-licensed Univision owned-and-operated station KUVN-DT. The two stations share studios on Bryan Street in downtown Dallas; KSTR-DT's transmitter is located in Cedar Hill, Texas.
A television station is a set of equipment managed by a business, organisation or other entity such as an amateur television (ATV) operator, that transmits video content and audio content via radio waves directly from a transmitter on the earth's surface to any number of tuned receivers simultaneously.
DWDB-TV is a television station in Metro Manila, Philippines, serving as the flagship of the GTV network. It is owned and operated by GMA Network, Inc. alongside GMA flagship DZBB-TV. Both stations share studios at the GMA Network Center, EDSA corner Timog Avenue, Diliman, Quezon City, while DWDB-TV's hybrid analog and digital transmitting facility is located at the GMA Tower of Power, Tandang Sora Avenue, Barangay Culiat, Quezon City.
The class A television service is a system for regulating some low-power television (LPTV) stations in the United States. Class A stations are denoted by the broadcast callsign suffix "-CA" (analog) or "-CD" (digital), although very many analog -CA stations have a digital companion channel that was assigned the -LD suffix used by regular (non-class-A) digital LPTV stations.
In broadcasting, digital subchannels are a method of transmitting more than one independent program stream simultaneously from the same digital radio or television station on the same radio frequency channel. This is done by using data compression techniques to reduce the size of each individual program stream, and multiplexing to combine them into a single signal. The practice is sometimes called "multicasting".
The Voice of Vietnam is the Vietnamese national radio broadcaster. Directly controlled by the government of Vietnam, it is tasked propagating the policies of the Party and the laws of the state.
DZBB-TV is a television station in Metro Manila, Philippines, serving as the flagship of the GMA network. It is owned and operated by the network's namesake corporate parent alongside GTV flagship DWDB-TV. Both stations share studios at the GMA Network Center, EDSA corner Timog Avenue, Diliman, Quezon City, while DZBB-TV's hybrid analog and digital transmitting facilities are located at the GMA Tower of Power, Tandang Sora Avenue, Barangay Culiat, Quezon City.
WVTF is a non-commercial educational radio station licensed to serve Roanoke, Virginia, featuring a public radio format branded "Radio IQ". Owned by Virginia Polytechnic Institute and State University through its fundraising arm, the Virginia Tech Foundation, the station carries programming from NPR, the Public Radio Exchange, American Public Media and the BBC World Service. WVTF is a listener-supported station, holding periodic fundraisers on the air. The studios and offices are on Kingsbury Lane in Roanoke.
A broadcast relay station, also known as a satellite station, relay transmitter, broadcast translator (U.S.), re-broadcaster (Canada), repeater or complementary station (Mexico), is a broadcast transmitter which repeats the signal of a radio or television station to an area not covered by the originating station.
In the broadcasting industry, a network affiliate or affiliated station is a local broadcaster, owned by a company other than the owner of the network, which carries some or all of the lineup of television programs or radio programs of a television or radio network. This distinguishes such a television or radio station from an owned-and-operated station (O&O), which is owned by the parent network.
In North American digital terrestrial television broadcasting, a distributed transmission system is a form of single-frequency network in which a single broadcast signal is fed via microwave, landline, or communications satellite to multiple synchronised terrestrial radio transmitter sites. The signal is then simultaneously broadcast on the same frequency in different overlapping portions of the same coverage area, effectively combining many small transmitters to generate a broadcast area rivalling that of one large transmitter or to fill gaps in coverage due to terrain or localised obstacles.
UHF television broadcasting is the use of ultra high frequency (UHF) radio for over-the-air transmission of television signals. UHF frequencies are used for both analog and digital television broadcasts. UHF channels are typically given higher channel numbers, like the US arrangement with VHF channels (initially) 1 to 13, and UHF channels (initially) numbered 14 to 83. Compared with an equivalent VHF television transmitter, to cover the same geographic area with a UHF transmitter requires a higher effective radiated power, implying a more powerful transmitter or a more complex antenna. However, the additional channels allow more broadcasters in a given region without causing objectionable mutual interference.