08 | Keysight | PrecisionProbe for Bandwidths up to 33 GHz - Data Sheet

Understanding the Analysis Charts

PrecisionProbe comes with many analysis charts that make understanding the characterization and correction very easy

and provide insight that is unique to Keysight oscilloscopes.

The Summary Chart

The summary chart shows the frequency response of the

corrected probe or Vout (notice how flat the response is).

The chart also shows the transfer function (TF) that is

applied to the signal.

Probe Input Impedance

Knowing the impedance profile of the probe allows you to

estimate the loading of the probe system. PrecisionProbe

allows for you to characterize the impedance profile, along

with quickly determining the capacitance, impedance and

inductance. Markers allow for easy viewing of the capaci-

tance and inductance at each frequency

Probe Correction Filter

The probe correction filter simply shows the filter that is

being applied to adjust for the probe. This filter is designed

to ensure the signal stays perfectly flat.

Figure 12: The summary chart

Figure 13: PrecisionProbe properly characterizes a 2 pF capacitor

Figure 14: Probe correction summary