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A cable channel (sometimes known as a cable network) is a television network available via cable television. Many of the same channels are distributed through satellite television. Alternative terms include non-broadcast channel or programming service, the latter being mainly used in legal contexts.
QAM is used in a variety of communications systems such as Dial-up modems and WiFi. In cable systems, a QAM tuner is linked to the cable in a manner that is equivalent to an ATSC tuner which is required to receive over-the-air (OTA) digital channels broadcast by local television stations when attached to an antenna. Most new HDTV digital ...
In US cable systems, equipment in the home sends a channel request signal back to the distribution hub. If a channel is requested, the distribution hub allocates a QAM channel and transmits the channel to the coaxial cable. For this to work, the home equipment must have two-way communication ability.
The basic programming package offered by cable television systems is usually known as "basic cable" and provides access to a large number of cable television channels, as well as broadcast television networks (e.g., ABC, CBS, NBC, Fox, The CW, MyNetworkTV, Telemundo, Univision, UniMás, PBS), public, educational, and government access channels ...
This is possible over cable TV or through an Internet connection but is not possible with a standard antenna alone. Some of these systems support video on demand using a communication channel localized to a neighborhood rather than a city (terrestrial) or an even larger area (satellite).
Examples of communications channels include: A connection between initiating and terminating communication endpoints of a telecommunication circuit. A single path provided by a transmission medium via either physical separation, such as by multipair cable or; separation, such as by frequency-division or time-division multiplexing.
By coding signals and having a cable converter box with decoding equipment in homes, the latter also enables subscription-based channels, pay-tv and pay-per-view services. In his essay, John Durham Peters wrote that communication is a tool used for dissemination.
Digital cable technology has allowed cable providers to compress video channels so that they take up less bandwidth and to offer two-way communication capabilities. This has enabled providers to offer more channels, video-on-demand services that don't require a separate telephone line , telephone services, high speed internet services, and ...
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