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2. Communication channel - Wikipedia

   en.wikipedia.org/wiki/Communication_channel

   Marine VHF radio uses some 88 channels in the VHF band for two-way FM voice communication. Channel 16, for example, is 156.800 MHz. In the US, seven additional channels, WX1 - WX7, are allocated for weather broadcasts. Television channels such as North American TV Channel 2 at 55.25 MHz, Channel 13 at 211.25 MHz. Each channel is 6 MHz wide.

3. Cable television - Wikipedia

   en.wikipedia.org/wiki/Cable_television

   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.

4. Television broadcaster - Wikipedia

   en.wikipedia.org/wiki/Television_broadcaster

   In countries where most networks broadcast identical, centrally originated content to all of their stations, and where most individual television transmitters therefore operate only as large "repeater stations", the terms "television network", "television channel" (a numeric identifier or radio frequency) and "television station" have become mostly interchangeable in everyday language, with ...

5. Cable television in the United States - Wikipedia

   en.wikipedia.org/wiki/Cable_television_in_the...

   IPTV (i.e., delivering TV channels over an internet or IP-based network) is even less labor-intensive, delivering channels to the consumer automatically. Currently, digital cable and satellite delivery systems with standardized subscriptions are providing an opportunity for networks that service niche and minority audiences to reach millions of ...

6. List of United States pay television channels - Wikipedia

   en.wikipedia.org/wiki/List_of_United_States_pay...

   The following is a list of pay television networks or channels broadcasting or receivable in the United States, organized by broadcast area and genre.. Some television providers use one or more channel slots for east/west feeds, high definition services, secondary audio programming and access to video on demand.

7. QAM (television) - Wikipedia

   en.wikipedia.org/wiki/QAM_(television)

   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 ...