The Cable Television System

 

Photo Credits | Dina Lynda
Starting as a means of receiving broadcast television signals for people at two great distance from a transmitter or blocked by mountains, buildings, and trees, cable TV system has grown to be proliferating television delivery system in cities as well as in remote areas. Cable TV became a true multi-channel medium with basic and premium services from satellites and broadcasting stations. Now, Cable TV is one of the major providers of high speed internet and other value added services in the country because of the broadband facility.

To receive cable television at a given location, cable distribution lines must be available on the local utility poles or underground utility lines. Coaxial cable brings the signal to the customer's building through a service drop, an overhead or underground cable. If the subscriber's building does not have a cable service drop, the cable company will install one. The standard cable used in the U.S. is RG-6, which has a 75 ohm impedance, and connects with a type F connector. The cable company's portion of the wiring usually ends at a distribution box on the building exterior, and built-in cable wiring in the walls usually distributes the signal to jacks in different rooms to which televisions are connected. Multiple cables to different rooms are split off the incoming cable with a small device called a splitter. There are two standards for cable television; older analog cable, and newer digital cable which can carry data signals used by digital television receivers such as high-definition television (HDTV) equipment.

EXCERPTS | Cable Television System (Book 3), Cable Television (Wiki

Short Name | CaTV

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