Coaxial Cable
Coaxial cable is called "coaxial" because it includes one physical channel that carries the signal surrounded (after a layer of insulation) by another concentric physical channel, both running along the same axis. The outer channel serves as a ground. Many of these cables or pairs of coaxial tubes can be placed in a single outer sheathing and,this type of cctv cable is used a lot in the cctv installation.

Video Distribution Coaxial Cable
Video distribution is all about getting a strong clear signal through the cctv cable, of all channels (regardless of the source), to all video destinations . This involves three general functions: Gathering, and in some cases creating, the signals in one area; Combining, conditioning, and amplifying the signals; And distributing the signals to their destinations.

The first thing your need to know about video distribution is that what you are really distributing is Radio Frequency (RF) through the cctv cable. These signals, given the opportunity, would happily fly through the air to your TVs. But this method of video distribution is frowned upon by the FCC because they would rather let the "licensed broadcasters" handle that method of distribution. Instead, we force the RF signal to go down shielded cctv coaxial cable. Apart from the distribution task itself, the two most important parts of creating a video distribution system are to keep your signals inside the cctv cable, and to keep other signals out of the cctv cable!

Unshielded Twisted Pair UTP
Unshielded twisted pair is the most common kind of copper telephone wiring and is used as cctv cable. Twisted pair is the ordinary copper wire that connects home and many business computers to the telephone company or cctv installations. To reduce crosstalk or electromagnetic induction between pairs of wires, two insulated copper wires are twisted around each other. Each signal on twisted pair requires both wires. Since some telephone sets or desktop locations require multiple connections, twisted pair is sometimes installed in two or more pairs, all within a single cctv cable. For some business locations, twisted pair is enclosed in a shield that functions as a ground.

Suitable UTP Cables for Video Transmission:
Internal Multi Pair Telecom Cable: CW1308 External Multi-Pair Telecom Cable: CW1128 Cat 2, Cat 3, Cat 5 and Cat 5e