Impact Acoustics RG6/U Dual Shield is ideal for antenna, cable television and satellite installations. This cable is 18AWG copper clad steel center conductor surrounded by a foam polyethylene dielectric. A bonded aluminum foil and 60% aluminum braid provide 100% shield coverage. This cable 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.