Keysight Agilent HP 8445B

Keysight Agilent HP 8445B

Automatic Preselector

The Keysight Agilent HP 8445B is one of our refurbished Spectrum Analyzer Automatic Preselectors.

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Keysight Agilent HP 8445B Features:

  • Contains a YIG filter which tracks the tuned frequency of the analyzer over the range of 1.8 to 18GHz.
  • Suppresses the image and multiple responses which result from harmonic mixing.
  • The YIG filter is electronically tuned by sweep voltage and band code signals from the analyzer.
  • Tracking filter 3 dB bandwidth is typically 20 to 45MHz.
  • Tracking filter skirt roll-off is nominally 18 dB/octave.
  • Insertion loss for the low-pass filter (DC to 1.8GHz) is <2.5 dB.
  • Insertion loss for the tracking filter is (1.8 to 12GHz) <8 dB and (12 to 18GHz) <10 dB.