This RG6/U dual shield cable is ideal for antenna, cable television and satellite installations. This cable has an 18 AWG copper clad steel center conductor surrounded by a foam polyethylene dielectric. A bonded aluminum foil and 60% aluminum braid provide 100% shield coverage. Use for CL1, CL2, CM, CMX and CMG installations. Swept tested to 3 GHz to ensure performance at applicable frequencies. To help you keep track of cable used, the cable jacket is sequentially marked every two feet.