What Is A Coaxial Cable

Coaxial cable (Coaxial Cable) is a kind of wire and signal transmission line, which is generally caused by four layers of materials: the innermost is a conductive copper wire, the outside of the wire is surrounded by a layer of plastic (for insulator and dielectric), and there is a thin network of conductive material (generally copper or alloy) outside the insulator, and then the outer layer of the conductive material is the outermost insulating material as the outer skin.

Coaxial cables can be used for the transmission of analog and digital signals and are suitable for a wide variety of applications, among which the most important are cable television transmission, long-distance telephone transmission, short-distance connections between computer systems, and local area networks. Coaxial cable has developed rapidly as a means of transmitting TV signals to thousands of households, which is cable television. A cable TV system can carry dozens or even hundreds of TV channels, and its transmission range can reach tens of kilometers. Coaxial cables have long been an important part of long-distance telephone networks. Today, it faces increasing competition from fiber optics, terrestrial microwaves, and satellites.