Frequency Range: DC to 50 GHz Maximum SWR (except 40 dB): 1.15 to 26.5 GHz, 1.25 to 40 GHz, 1.45 to 50 GHz Maximum SWR (40 dB attenuator): 1.08 to 26.5 GHz, 1.15 to 40 GHz, 1.25 to 50 GHz Maximum Input Power: 1 W (average) Connector: 2.4 mm male, femaleThe Keysight 8490D coaxial fixed attenuator provides precision attenuation, flat frequency response, low SWR over broad frequency range at a low price. The attenuator is available in nominal attenuations of 3 dB and 6 dB, also 10 dB increments from 10 dB to 40 dB. This attenuator is swept-frequency tested to ensure they meet specifications at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.