bnc coaxial connector 4 antenna bayonet coupling Check out our BNC Connector or adaptor Specifications, thanks.BNC SpecificationsElectrical Performance1, Frequency Range DC~4GHz2, Impedance 50 Ohms3, Voltage Rating 500V r.m.s at sea level4, V.S.W.R Straight 1.22@3GHz Max. Right-Angle 1.30@3GHz Max.5, Contact Resistance Center Contact 1.5m Ohms Max. Outer Contact 1.0m Ohms Max.6, Insulation ...