Coaxial Cable Tutorial
You walk into the nearest electronics store, search for a coaxial cable, and try to get the cheapest option. After all, it's all the same basic cable, right? But the differences that are available may be useful.
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Function
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The most common function is to connect the TV to the antenna source. Because most people use inexpensive, basic coaxial cable, the explanation stops there.
But there is a variety, made from different materials to serve different purposes. In total, the "coax" can transfer video, radio, measurement and data signals.
Users of coaxial cables vary as well--telephone companies, businesses for communication wires, and households for cable Internet or TV.
Basic Design
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As its name implies, the cable has two conductors that share an axis. The design of the cable is similar to that of an archery target: a general concentric build.
In the center is a conductor, usually a solid wire or a bunch of fine stranded ones, most commonly made of copper. Next is a layer of insulation, usually a relatively permeable substance. Then comes the second conductor. It can be a a copper mesh or braided layer that serves as a layer to "ground." Grounding means shielding from high voltages, essentially absorbing them, if the insulation wears out. This layer simultaneously shields and transmits information. The last ring is a sturdy and durable insulator.
Assortment of Cables
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Below are just a few examples of the variety available in the coaxial cable market.
Siamese is a common one used to split one connection. If you have cable and want to share the connection to two different TVs, this would be your cable.
Dual shield can avoid certain air interferences, and can also be used for analog or digital signals.
Quad shield is the best to avoid interference from air and low AC levels, and is usually recommended for high-definition signals.
Monster satellite is built to transfer satellite signals in addition to cable signals.
Some cables are actually UV resistant and/or durable against harsh conditions. These tend to be the cables used for big companies or for telephone companies.If you're shopping for a coaxial cable, you can find one that's more suited for your needs--even if it's a little more expensive. Technology's purpose is to make life easier and deliver quality services. Take advantage of the options available by innovation.
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