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3
Calibrating Probes
For the socketed probe head, insert two properly trimmed 82Ω resistors into the sockets.
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To ensure contact, pull up on the back side of the yellow pincher to ensure good contact
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between resistor leads and the deskew fixture.
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Release the yellow pincher.
On the oscilloscope, press the autoscale button on the front panel.
Select Setup menu and choose the channel connected to the BNC cable from
the pull-down menu.
Select the Probes... button.
Select the Configure Probe System button.
Select User Defined Probe from the pull-down menu.
Select the Calibrate Probe... button.
Select the Calibrated Skew radio button.
Once the skew calibration is completed, close all dialog boxes.
Select the Start Skew Calibration... button and follow the on-screen
instructions.
Set the vertical scale for the displayed channels to 100 mV/div.
Set the horizontal range to 1.00 ns/div.
Set the horizontal position to approximately 3 ns.
Change the vertical position knobs of both channels until the waveforms
overlap each other.
Select the Setup menu choose Acquisition... from the pull-down menu.
In the Acquisition Setup dialog box enable averaging. When you close the
dialog box, you should see waveforms similar to that in
Figure 53
on page 86.
1130B-Series Probes User's Guide
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