HP 8495H Programmable Step Attenuator, DC to 18 GHz, 0 to 70 dB, 10 dB steps

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The HP 8495H dc to 18 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 HP 11716A/B/C interconnect kits provide quick connection of HP 8494/5/6/7 1 dB and 10 dB step attenuators in series for greater dynamic range with 1 dB steps.


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Electrical Specifications

Frequency Range:              dc to 18 GHz

Attenuation Range:            0 to 70 dB
                              10 dB steps

Insertion Loss (0 dB setting)
                              0.4 dB + 0.07 dB/GHz

Maximum SWR:                  1.35 to 8 GHz
                              1.5 to 12.4 GHz
                              1.7 to 18 GHz

Repeatability1 Life:          0.03 dB, maximum
                              5 million cycles per section

Maximum RF Input Power:       1 W average
                              100 W peak2 (10 µs maximum)

Shipping Weight:              0.9 kg (2 lb)

1Measured at 25 °C
2Not to exceed average power.


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HP 8495H     Programmable Step Attenuator, DC to 18 GHz, 0 to 70 dB, 10 dB steps
   Opt 001   Type-N(f)
   Opt 002   SMA (f)
   Opt 003   APC-7
   Opt 008   DC ribbon cable, 8 inches
   Opt 011   5 volt operation instead std 24 volt
   Opt 016   DC ribbon cable, 16 inches
   Opt 910   Extra manual(s)
   Opt UK6   Commercial calibration certificate with test data
   Opt UKS   Certificate of calibration

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Step Attenuators for Bench Use, Data Sheet ( PDF)

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