Spec. 1.0 Cu conductor+4.70 foam PE+ Al foil +0.12/64 Al braiding+6.50 White PVC SONATA high quality 75 ohms CATV coaxial cable SAT50 series, low loss at high frequency for cable television, satellite television. UL, RoHS, ISO9001 approved. Features - 100% tested ; - Low Attenuation; - High reliability ; - Standard:EN50117 ; - Lifetime Warranty ; - Impedance: 75+/-3 Ohms; - RoHS, UL compliant ; - Velocity of Propagation: 82% Construction (SAT50): Center Conductor: 1.00+/-0.01mm Solid Copper Dielectric: 4.75+/-0.05mm Foam PE (Gas injected foam polythene, PEG) Shield: Copper Foil, or APA (Al-polyster-Al foil) Braid: Bare Copper / Al-Mg / CCA wires Jacket: 6.50+0.05mm PVC Characteristics Sparker Test: 4000VAC Impedance: 75+/-3 Ohm Capacitance: 54+2pF/m Velocity of Propagation: 82% Return Loss: 20dB min (5-3000MHz