Rg179 Construction Center conductor:, 1.02+0.01mm solid copper/copper clad steel Dielectric:, 1.6+0.05mmfoam pe Shield:, bc braiding Braid coverage:, 95%al Jacket:, 2.54mm pvc Jelly/apd, per customers' special requirement Characteristics Sparker test:, 4000vac, Impedance:, 75+3 ohm, Capacitance:, 64+3pf/m, Velocity of propagation:, 69.5%, Return loss:, 20db min (50-1000mhz)