What is a coaxial cable used for in telecommunications?

The primary function of coaxial cable in telecommunications is to transmit radio frequency signals between antennas and radio equipment. This type of cable consists of a central conductor surrounded by an insulating layer, a metallic shield, and an outer insulating layer. Its design allows for efficient transmission of signals with minimal interference, making it ideal for applications such as connecting antennas to transmitters and receivers.

Coaxial cables excel in handling high-frequency signals, which are crucial for various telecommunications applications including broadcast television, internet data, and cellular communications. By maintaining signal integrity over distance, coaxial cables help ensure clear communication, making them a vital component in the telecommunications infrastructure.

The other options refer to different purposes or technologies not associated with coaxial cables. For example, transmitting power to the tower involves different types of cables or power delivery systems, while fiber optic cables are used for high-speed data transmission over longer distances without the same issues as coaxial cables. Lastly, connecting battery backups typically does not utilize coaxial cables but rather specialized power cables designed for that function.