1- Center Contact: Brass,Gold-plated 2- Body-diecast: Brass,Nickel-plated 3- Insulation: PTFE 4- Electrical Impedance: 50 Ω Frequency Range:0~11 GHz Max. Voltage Rating: 500 volts Withstand Voltage:1500V Insulation Resistance:5000 MΩ V.S.W.R:<1.22 Contact resistance: Centre contact: 1.5 mΩ Max. Outer contact: 0.2 mΩ Max. 5- Mechanical Mating: 7/16 threaded coupling 6- Durability(mating):500(cycles) Cable Type: RG174, RG178,RG316,LMR100