Keysight Technologies InfiniiMax III Series User Manual page 76

4. Calibration / Deskew Procedure
Procedure
76
With the probe head correctly connected to the fixture, press OK in the
16
dialog box on the oscilloscope and wait for the calibration to finish. It
will report whether the calibration was successful or not.
Once the calibration has successfully completed, the DC Cal LED on
17
the probe amplifier will turn green indicating that the particular
combination of probe amplifier, probe head, and oscilloscope channel
input has been calibrated.
N O T E Any time you use a new probe head type, a new probe amplifier, or a different
channel on the oscilloscope, the DC Cal LED will be amber, indicating that a DC
calibration is required.
Once the DC vertical calibration has successfully completed, select
18
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.