Spectrum Analysis Back to Basics – Definitions and Measurements

Spectrum Analysis Back to Basics – Definitions and Measurements
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Spectrum Analysis Back to Basics – Definitions and Measurements

  • SpecificationsAccuracy: Display FidelityDisplay Fidelity includes:• Log Amp Fidelity• Envelope Detector Linearity• Digitizing Circuit LinearityDisplay fidelity error applies when signals are not at the same reference level amplitude when measuredIn the past, technique for best accuracy was to move each measured signal to the reference line, eliminating display fidelity error. Display Scale Fidelity of analyzers with digital IF are superior to those with analog IF i.e. X-series analyzers have +/- 0.1 db vs. ESA, 856xEC +/- 1.0 db26Display Fidelity