Table of Contents
Advertisement
14 Connect the N1021B probe at the end of the
cables. Click Calibration Wizard. The reference
plane is located at the point where the cables
attach to the probe.
When the TDR calibration instructs you to disconnect every-
N O T E
thing from the module, disconnect the cables at the probe. Leave the
cables connected to the module. The cables must be included in the
TDR calibration as you are establishing the measurement reference
plan at the end of the cables.
15 After the calibration completes, close the
Calibration Wizard.
16 In the TDR/TDT Setup dialog box, enter an
Effective Rise Time of 15 ps. Close the dialog box.
17 Connect the cables to the probe.
18 Adjust the probe spacing wheel to move the two
probe tips together so that they touch creating a
short.
19 Move the response of the probe's tip to the
screen's left side. Reduce the horizontal span
while repositioning the response to the left side.
This action ensures that the response remains
displayed. Repeat until the span setting is 50 ps/
div as shown along the display's bottom edge.
20 Center the response.
21 If you need to adjust the amplitude position and
scale of the response, click the Response button
on the Setup tab.
22 Select the Measure toolbar and click Fall Time.
23 Click Setup > Averaging and enter 16 for the
Number of Averages. Close the dialog box.
13
Advertisement
Table of Contents
