Keysight 8491A 12.4 GHz Coaxial Fixed Attenuator

Manufacturer: Keysight
Model Number: 8491A
The Keysight 8491A coaxial fixed attenuator provides precision attenuation, flat frequency response and low SWR over broad frequency ranges. The attenuator has type-N connectors and is available in nominal attenuations of 3 dB and 6 dB, as well as 10 dB increments from 10 dB to 60 dB. This attenuator is swept-frequency tested to ensure specification compliance at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.


  • Superior RF Performance Frequency Range: DC to 12.4 GHz
  • Maximum SWR: 1.2 to 4 GHz, 1.3 to 12.4 GHz
  • Power handling Maximum Input Power: 2 W (average), 100 W (peak)
  • Features Connector: Type-N male, female

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