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13
Calibrating the Infiniium Oscilloscope and Probe
Verifying the Probe Calibration
If you have successfully calibrated the probe, it is not necessary to perform this verification. However,
if you want to verify that the probe was properly calibrated, the following procedure will help you
verify the calibration.
The calibration procedure requires the following parts:
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2
3
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8
9
10 Select Setup menu and choose the channel connected to the BNC cable from the pull-down
11 Select the Probes... button.
12 Select the Configure Probe System button.
13 Select User Defined Probe from the pull-down menu.
14 Select the Calibrate Probe... button.
15 Select the Calibrated Skew radio button.
16 Once the skew calibration is completed, close all dialog boxes.
182
BNC (male) to SMA (male) adaptor
SMA (male) to BNC (female) adaptor
BNC (male) to BNC (male) 12 inch cable such as the Keysight 8120-1838
Keysight 54855-61620 calibration cable (Infiniium oscilloscopes with bandwidths of 6 GHz and
greater only)
Keysight 54855-67604 precision 3.5 mm adaptors (Infiniium oscilloscopes with bandwidths of
6 GHz and greater only)
Deskew fixture
For the following procedure, refer to
Connect BNC (male) to SMA (male) adaptor to the deskew fixture on the connector closest to the
yellow pincher.
Connect the SMA (male) to BNC (female) to the connector farthest from the yellow pincher.
Connect the BNC (male) to BNC (male) cable to the BNC connector on the deskew fixture to one
of the unused oscilloscope channels. For infiniium oscilloscopes with bandwidths of 6 GHz and
greater, use the 54855-61620 calibration cable and the two 54855-64604 precision 3.5 mm
adaptors.
Connect the BNC side of the deskew fixture to the Aux Out BNC of the Infiniium oscilloscope.
Connect the probe to an oscilloscope channel.
To minimize the wear and tear on the probe head, it should be placed on a support to relieve the
strain on the probe head cables.
Push down on the back side of the yellow pincher. Insert the probe head resistor lead underneath
the center of the yellow pincher and over the center conductor of the deskew fixture. The
negative probe head resistor lead or ground lead must be underneath the yellow pincher and
over one of the outside copper conductors (ground) of the deskew fixture. Make sure that the
probe head is approximately perpendicular to the deskew fixture.
Release the yellow pincher.
On the oscilloscope, press the autoscale button on the front panel.
menu.
Figure
64.
DDR1 Compliance Testing Methods of Implementation
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