"Impact Acoustics' RG6/U Dual Shield In-Wall Coaxial Cable is ideal for antenna, cable television and satellite installations. This cable is composed of an 18AWG copper-clad steel-center conductor surrounded by a foam polyethylene dielectric. A bonded aluminum foil and 60% aluminum braid provide 100% shield coverage. Meets specifications for CL1, CL2, CM, CMX and CMG installations. Swept-tested to 3GHz to ensure performance at applicable frequencies. To help you keep track of cable used, the cable jacket is sequentially marked every two feet. Features: 18AWG copper clad steel center conductor. 60% aluminum braid over foil providing 100% shield coverage. Foam polyethylene dielectric. CM/CL2-rated PVC jacket. Swept tested to 3GHz. Sequentially marked every 2 feel. Ideal for RF applications like outdoor TV antennas and cable television."