RG Cable

RG Cables are coaxial cables with an RG rating. 'RG' in RG cables stands for 'Radio Guide' which was a specification derived from World War II military communications. The RG number of a coaxial cable indicates the gauge or cable thickness, the higher the RG number the thinner the central conductor core is. The ,most common RG cables are RG6 cable, RG11 cable and RG59 cable.