Digiwave RG59211000B 1000-feet RG59 Coaxial Cable is professional-quality cable with 20 gauge copper clad steel center conductor. Cable also swept-tested to 3000MHz(3GHz) to assure excellent off-the-reel performance. This cable heavily 60% shielded with 100% foiled to minimize interference. Copper clad steel conductor maxima the cable length you can run. Cable jacket is sequentially marked to keep track of cable used.