Trunk Series—75 Ohm Coaxial Cable 565 Seamless Trunk Cable

CATV trunk cable and copper clad aluminum cable (CCA) are two different types of cables used in telecommunications and cable TV systems.

CATV trunk cable is a type of coaxial cable that is used to distribute signals from the cable TV headend to the distribution points in the cable TV network. It is designed to handle high-frequency signals and has a larger diameter than the cables used for in-home wiring. The cable consists of an inner conductor made of copper, a dielectric insulator, a braided copper shield, and an outer jacket.

Copper clad aluminum cable (CCA) is a type of cable that is made up of an inner aluminum core and a thin layer of copper that is bonded to the outer surface of the aluminum core. It is used in various applications, including telecommunications, electrical wiring, and audio/video cables. CCA cable is generally less expensive than pure copper cable because aluminum is less expensive than copper, but it has some drawbacks. Because aluminum has a higher resistance than copper, CCA cable has a higher attenuation rate and may have reduced performance at higher frequencies.

It is important to note that some jurisdictions have regulations that limit or prohibit the use of CCA cable in certain applications, such as residential electrical wiring, due to safety concerns. When choosing a cable for a specific application, it is important to consider the performance requirements and any applicable regulations.