HP 83481A, User Manual, Page: 67 / 98

Calibration Overview
User Calibrations|Optical and Electrical
Figure 3-4. Dark calibration menu
Channel Skew Calibration
This calibration aects both optical and electrical measurements . The skew
calibration changes the horizontal position of a waveform on the display . The
skew calibration has a range of approximately 100 s . Y ou can use skew to
compensate for the dierences in cable or probe lengths . It also allows you
to place the trigger edge at the center of the display when you are using a
power splitter connected between the channel and trigger inputs . Another
use for skew is when you are comparing two waveforms that have a timing
dierence . If you are interested in comparing the shapes of two waveforms
rather than the actual timing dierence , you can use skew to overlay one
waveform on top of the other waveform.
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