is RG-6, which has a 75 ohm impedance, and connects with a type F connector. If the subscriber's building does not have a cable service drop, the cable company will install one. Coaxial cable brings the signal to the customer's building through a service drop, an overhead or underground cable. To receive cable television at a given location, cable distribution lines must be available on the local utility poles or underground utility lines. Distribution A cable television distribution box ( left) in the basement of a building in Germany (Kabel BW network, now Vodafone), with a splitter ( right) which supplies the signal to separate cables which go to different rooms The number further increased to 62.4% in 1994. By 1988, 52.8% of all households were using cable. In 1968, 6.4% of Americans had cable television. The abbreviation "CATV" is used in the US for cable television and originally stood for community antenna television, from cable television's origins in 1948 in areas where over-the-air TV reception was limited by distance from transmitters or mountainous terrain, large community antennas were constructed, and cable was run from them to individual homes. Alternative terms include "non-broadcast channel" or "programming service", the latter being mainly used in legal contexts. Many of the same channels are distributed through satellite television. Analog television was standard in the 20th century, but since the 2000s, cable systems have been upgraded to digital cable operation.Ī cable channel (sometimes known as a cable network) is a television network available via cable television. FM radio programming, high-speed Internet, telephone services, and similar non-television services may also be provided through these cables. This contrasts with broadcast television (also known as terrestrial television), in which the television signal is transmitted over-the-air by radio waves and received by a television antenna attached to the television or satellite television, in which the television signal is transmitted over-the-air by radio waves from a communications satellite orbiting the Earth, and received by a satellite dish antenna on the roof. Presented unit is a Cisco RNG200N for QAM digital cable television system used in North America.Ĭable television is a system of delivering television programming to consumers via radio frequency (RF) signals transmitted through coaxial cables, or in more recent systems, light pulses through fibre-optic cables. ( Learn how and when to remove this template message)Ī coaxial cable used to carry cable television onto subscribers' premises A set-top box, an electronic device which cable subscribers use to connect the cable signal to their television sets. ( May 2023) ( Learn how and when to remove this template message) Please help to improve this article by introducing more precise citations. This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations.
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