8497K Programmable Step Attenuator, DC to 26.5 GHz, 0 to 90 dB, 10 dB steps

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The Keysight 8497K, dc to 26.5 GHz programmable step attenuator, offers exceptional repeatability and reliability. Attenuation is provided in 10 dB steps from 0 to 90 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 UK6. A maximum switching time of 20 ms (including contact settling) speeds automatic testing. Custom step attenuator/switch combinations are possible. The Keysight 11716A/B/C interconnect kits provide quick connection of Keysight 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 26.5 GHz
• Insertion loss at 0 dB: 0.4 dB + 0.09 dB/GHz
• Maximum SWR: 1.25 to 6 GHz, 1.45 to 12.4 GHz, 1.6 to 18 GHz, 1.8 to 26.5 GHz

Repeatability and Life Span

• Repeatability life: 0.03 dB max to 18 GHz, ±0.05 dB max to 26.5 GHz 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: 3.5 mm female
• Programming connector: 12-pin Viking, optional 14-pin DIP