... our BNC Connector or adaptor Specifications, thanks.BNC SpecificationsElectrical Performance1, Frequency Range DC~4GHz2, Impedance 50 Ohms3, Voltage Rating 500V r ... sea level.8, Insertion Loss 0.20dB @ 3GHz Max.9, RF Leakage 55dB @3GHz Min.Materials1, Bodies Nickel-plated brass2, Center ...