Keysight Agilent HP 355E

Keysight Agilent HP 355E


The Keysight Agilent HP 355E is one of our refurbished Programmable Step Attenuators.

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Keysight Agilent HP 355E Features:

  • Frequency range: dc to 1 GHz
  • Attenuation range: 0 to 12 dB, 1 dB steps
  • Insertion loss at 0 dB: 0.2 dB + 2.3 dB/GHz
  • Maximum SWR: 1.2 to 250 MHz, 1.3 to 500 MHz, 1.5 to 1 GHz
  • Repeatability life: 0.03 dB maximum, 0.5 million cycles per section
  • Maximum RF input power: 0.5 W (average), 350 W (peak)
  • Connector type: BNC female
  • Programming connector: 7-pin

Attenuator sections are inserted and removed by cam-actuated microswitches which keep lead lengths short. This design minimizes stray capacitances and inductances, and keeps phase shift to a minimum. The Keysight Agilent HP 355E is a compact and rugged unit in which the component parts are rigidly positioned and well-shielded so that neither stray pickup nor signal leakage is a problem. It may be connected with the Keysight Agilent HP 355F in series to provide precision attenuation in 1 dB steps from 0 to 132 dB. Either terminal may be connected as input or output. Remote programming with rapid switching is simple via a 7-pin connector.