Specification: *Body: ALUMINUM/Black Nickel *Connector: Body/Brass/Nickel Plated, *Contact/Brass/Gold Plated, Insulator/TEFLON *Frequency: Range 3GHz *V.S.W.R: 1GHz~2GHZ less than 1.5 *V.S.W.R: 2GHz~ 3GHz less than 2.0 *Insertion Loss: less than 0.3dB *DC Breakdown Voltage: DC230V/DC350V *Tolerance of DCBV: +-15% *Impulse Breakdown Voltage at 1KV/us: =10000M ohm