RG6 Quad Shield is great for Hi-Impact Acoustics, antennas, cable television, and satellite installations. The durable 18 AWG copper-clad steel-center conductor is surrounded by a foam polyethylene dielectric with two active shield layers of mylar foil with 99-100 percent coverage and two layers of aluminum braid shielding with 95 percent coverage. Sweep testing ensures 3.0 GHz performance at applicable frequencies.