"Make installation of surveillance systems easier by carrying video over the coax and power over the 18/2! Dual shield RG59/U coax cable features a 20AWG solid copper center conductor for a truly clean video signal. 95% solid copper braid over a foil shield protects the video signal from external EMI and RFI while providing a reliable path for PTZ signal control. Use for CL1, CL2, CM, CMX and CMG installations. Sweep-tested to 3GHz to ensure performance. The cable jacket is sequentially marked every two feet to aid in tracking the remaining cable on the spool. Features: Siamese-type construction for video and power. Dual shielded RG59/u. 95% solid copper braid suitable for PTZ control. Sweep-tested to 3GHz. Sequential foot marking ends at 0 feet."