... . Electrical:Impedance50 ohmFrequency Range0 to 10.0 GHzVoltage RatingRG174, 188, 316: 335 volts rms maxRG178, 196: 250 volts ... rms maxDielectric Withstanding VoltageRG174, 188, 316: 750 volts rms maxRG178, 196: 500 volts rms ... megohms min Mechanical and Environmental:Mating10-32 threaded couplingCable RetentionRG174, 188, 316: 20 lbs minRG178, 196: 6 lbs minDurability500 ...