“A television aerial cable, often referred to as a coaxial cable or simply “”coax cable,”” is a type of cable commonly used to transmit television signals, as well as other data and communication signals. It’s a shielded cable designed to carry high-frequency electrical signals with minimal interference and loss.

The term “”coaxial”” refers to the construction of the cable, where two conductors share the same axis, or center line. A typical coaxial cable consists of the following components:

Center Conductor: This is the innermost wire, usually made of copper or aluminium, that carries the signal. It’s surrounded by insulation to prevent contact with the outer layers.

Dielectric Layer: Surrounding the center conductor is a layer of insulating material, known as the dielectric. This layer maintains the separation between the center conductor and the outer shield while also providing structural stability to the cable.

Metallic Shield: The dielectric is encased in a metallic shield, usually made of braided wire or foil. This shield acts as a grounding and shielding layer, protecting the signal from external interference and minimizing signal loss.

Outer Jacket: The entire cable is covered by an outer protective layer, typically made of rubber or plastic. This layer provides further protection against physical damage, moisture, and other environmental factors.

Coaxial cables are widely used for various applications beyond television, including cable TV distribution, internet connections (particularly in older broadband setups like cable modems), satellite connections, and even some audio equipment. The shielding properties of coaxial cables make them less susceptible to electromagnetic interference, which helps maintain signal quality over longer distances compared to other types of cables.

To use a coaxial cable for television reception, you typically connect one end to the TV’s coaxial input port and the other end to an external antenna or a cable/satellite receiver. The cable then carries the signal from the antenna or receiver to the television, allowing you to watch your desired television channels.”