N2809A Datasheet, PDF (7/11 Pages) Keysight Technologies – Bandwidths up to 33 GHz

07 | Keysight | PrecisionProbe for Bandwidths up to 33 GHz - Data Sheet
Analysis Tools
PrecisionProbe provides many tools to allow you to know exactly what has been characterized and what parameters have
been improved by the innovative software.
PrecisionProbe Wizard
PrecisionProbe provides an easy to follow guide with its
wizard. The wizard takes you step by step through the set
up of the software and ensures that your measurements are
taken with the highest signal integrity.
Figure 9: Starting the PrecisionProbe wizard
Probe correction
To maximize margins it is important to correct each probe
identically and to ensure the correction method is the same.
The Probe Correction menu allows you to change between
Vout/Vin and Vout/Vsource. PrecisionProbe also allows for
the source impedance via s-parameter file or an estimate.
This is important when measuring Vout/Vsource to ensure
a high level of accuracy as assuming an ideal 50 ohm
environment can cause unwanted errors.
Figure 10: Choosing the probe correction that you need
Bandwidth Control
Software such as PrecisionProbe can amplify high frequen-
cy noise when correcting for the loss of a probe or cable.
The high frequency noise can then cause unwanted noise
and inaccuracies. Bandwidth control allows you to remove
unwanted high frequency noise by providing a filter.
PrecisionProbe also provides the ability to control the
amount of gain that is applied to the signal. You can increase
the amount of boosting which improves risetimes but also
increases noise, or you can decrease the amount of boosting
which decreases noise but degrades rise times.
Figure 11: Use bandwidth control to maximize margins