Hello Guys, My main business used to be Cb radio, scanner repair. CB and Ham style of coax is good copper with a rubber jacket outside and usually just a foam insulator between the ground braid and the center wire. RG-58/59 is the smallest sizes, RG-8X is one step larger with a larger center wire, and RG-8U or 213 is the largest with almost a 1/4" diameter stranded wire in the center, plus the ground braid. All easy to strip with a utility knife,,,Most coaxial isn't even copper.
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