N2808A Datasheet, PDF (8/13 Pages) Keysight Technologies – PrecisionProbe for the 9000 Series

08 | Keysight | N2808A PrecisionProbe for the 9000 Series - 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 capacitance and inductance
at each frequency.
Figure 12. The summary chart
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 13. PrecisionProbe properly characterizes a 2 pF capacitor
Figure 14. Probe correction summary