Get the best possible signal with Rj59 Double Ply Coaxial Cable 100% Copper specially designed with added protection from electromagnetic interference. Get the best signal quality available, even over long distances. This cable comes with a PE (polyethylene) jacket instead of the standard PVC jacket used in most coax cables. The PE jacket makes this cable extremely resistant to cold weather, moisture, chemicals, abrasion, cutting, and even lightning. It also has a special gel-like substance in the jacket that blocks water and moisture corroding your conductor and damaging your signal. If you bury your coax cable without this added protection you risk moisture and contaminants entering the cable and corrode your shielding and conductor. Having power and data cables run together cuts your installation time in half by requiring you to run only one cable.