Quad Shield RG6 cable is far superior to resisting interference and should be used in high EMI/RFI environments. This cable is internally protected from RFI & EMI by a 40% aluminum braid and 60% aluminum foil shield followed by another layer of 40% aluminum braid and 60% aluminum foil shield. The center conductor is sweep tested to 2250MHz and is made from 18AWG made from solid copper clad steel.