Keysight N2800A User Manual page 76

5
Calibration / Deskew Procedure
and checking that you have a stable step on screen (note that pressing autoscale will close
the Probe Calibration dialog box).
When connecting the probe head to the fixture, do not press down with much force or you
CAUTION
could snap off the fixture from the Cal Out connection. Light contact is all that is needed for
the calibration.
16 With the probe head correctly connected to the fixture, press OK in the dialog box on the
oscilloscope and wait for the calibration to finish. It will report whether the calibration was
successful or not.
17 Once the calibration has successfully completed, the DC Cal LED on the probe amplifier
will turn green indicating that the particular combination of probe amplifier, probe head,
and oscilloscope channel input has been calibrated.
Any time you use a new probe head type, a new probe amplifier, or a different channel on the
N OT E
oscilloscope, the DC Cal LED will be amber, indicating that a DC calibration is required.
18 Once the DC vertical calibration has successfully completed, select the Calibrated Skew
radio button from the Probe Calibration dialog box on the oscilloscope. Then press the
Start Skew Calibration... button and follow the on-screen instructions for the skew
calibration.
76 InfiniiMax III Series Probes User's Guide