Calibrating The Probe - Keysight N1021B User Manual

N1021B Probe Kit

Calibrating the Probe

The differential probe tips do not have a ground, which is required for a calibration.
However, due to the short electrical length of the probe, the frequency-dependent losses of
the probe are small compared to those of the cables. Use the following procedure to
calibrate the path to the input of the probe.
1 Turn on the 86100D with the TDR module in the left slot and allow it to warm up for one
hour.
2
Perform a module calibration, if needed.
3
On the 86100D menu, click Help > Contents to open the online help.
4
In the help, click on the search tab and search for the TDR Calibration topic to learn about
using the TDR Calibration Setup dialog box. Close the help.
5
Place the 86100D In TDR mode, and open the TDR Calibration Setup dialog box. For the
TDR setup, connect the N1021B kit's phase-matched cables to the TDR module's TDR
ports as the TDR test setup cables. The N1021B probe will be the DUT (Device-Under-Test)
for this procedure.
6
As you go through the TDR setup steps in the dialog box, be sure to perform Step 5. "Step
Deskew".
When the TDR calibration instructs you to disconnect everything from the module, leave the cables
NOTE
connected to the module; the cables must be included in the TDR calibration.
7
When you have completed all of the steps in the dialog box, click Start Calibration
Measurement Wizard.
10 User's Guide