Keysight (Agilent) 8495G

Programmable Step Attenuator, DC to 4 GHz, 0 to 70 dB, 10 dB steps

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The Agilent 8495G dc to 4 GHz programmable step attenuator offers exceptional repeatability and reliability. Attenuation is provided in 10 dB steps from 0 to 70 dB. Precision gold-plated leaf springs ensure long life (over 5 million cycles) and very high attenuator repeatability (typically 0.01 dB). To improve measurement accuracy, NIST traceable data (SWR and attenuation) is available as Option 890. A maximum switching time of 20 ms (including contact settling) speeds automatic testing. Custom step attenuator/switch combinations are possible. The Agilent 11716A/B/C interconnect kits provide quick connection of Agilent 8494/5/6/7 1 dB and 10 dB step attenuators in series for greater dynamic range with 1 dB steps.

Superior RF Performance

  • Frequency range: dc to 4 GHz
  • Insertion loss at 0 dB: 0.4 dB + 0.07 dB/GHz
  • Maximum SWR: 1.35

Repeatability and Life Span

  • Repeatability life: 0.03 dB max 5 million cycles per section, typical
  • 5 million cycles per section

Power Handling

  • Maximum RF input power: 1 W (average), 100 W (peak)


  • Connector type: choice of type-N female, SMA female, APC-7
  • Programming connector: 12-pin Viking, optional 14-pin DIP
List of Options
001 Type N (female) connector
002 SMA female connector
003 APC-7 connectors
008 DC Ribbon Cable, 8"
011 5 Vdc supply voltage
016 14 pins dip plug, 16 inch DC ribbon cable
024 24 Vdc supply voltage
060 Viking to bare wire cable
890 Calibration Data
910 Additional operating and service manual
H50 Calibration provided (Atten and VSWR at 50MHz) as an Accredited 17025 Calibration of an 8494G (1dB Steps Calibration) and 8496G (10dB Steps Calibration) as a connected pair. A data printout and an electronic copy in .csv file format on a USB drive or CD-ROM (customer selected)
H60 Less than or equal to 1.02 VSWR and std lab cal at 50MHz
H88 Adds a disk containing measurement data. All four S-parameters included.
R-50C-011-3 Agilent Calibration - 3 years
R-50C-011-5 Agilent Calibration - 5 years
R-50C-021-3 ANSI Z540-1-1994 Calibration - 3 years
R-50C-021-5 ANSI Z540-1-1994 Calibration - 5 years
UK6 Commercial cal. certificate w/ test data
UKS Certificate of Calibration

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