What is a coaxial cable? A definition from WhatIs Sep 01, 2017Coaxial cable is a type of copper cable specially built with a metal shield and other components engineered to block signal interference. It is primarily used by cable TV companies to connect their satellite antenna facilities to customer homes and businesses. It is also sometimes used by telephone companies to connect central offices to RV Satellite Cable Receptacle Rewiring | ModMyRV The cable from the external cable port, which in my rig was an orange coax, connects to the pass-through; the cable from the antenna, which in my rig was gray, connects to the amplified connection. Much simpler, works the same, a bit cleaner install. Be careful not to short the power connections to the amplifier in the plate.