What is the primary function of coaxial cables in communication systems?

The primary function of coaxial cables in communication systems is to transmit data signals. These cables are specifically designed to carry radio frequency signals and data over long distances with minimal signal loss. Their structure, which includes a central conductor, insulating layer, metallic shield, and outer insulating layer, allows them to effectively shield against electromagnetic interference, making them suitable for high-frequency data transmission. This design ensures that signals can be sent accurately and efficiently from one point to another, whether for television, internet, or other types of communication, fulfilling the essential role of data transmission in a variety of applications.