Calibrate - HP 54721A User Reference

Channel Setup Menu
Calibrate
Calibrate
Skew
S!kew changes the horizontal position of a waveform on the display. Skew lets
you compensate for differences in cable or probe lengths. It also allows you
to place the triggered 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
difference between them. If you are more interested in comparing the two
waveforms than the actual timing difference between them, you can overlay
one waveform on top of the other waveform by using Skew.
The range of Skew is about ±100 fis.
Calibrate to best accuracy
Calibrate to best accuracy allows you to achieve the 1 percent accuracy
specifications. A best accuracy calibration is valid for a specific plug-in, in a
specific slot, in a specific mainframe. It is valid as long the temperature of
the mainframe is within ±5 °C of the temperature of when it was last
calibrated, the temperature of the mainframe is within ±5 °C of when the last
best accuracy calibration was done, and the best accuracy calibration was
performed within the last 24 hours.
The best accuracy calibration factors are stored in the mainframe's memory,
The calibration factors are retained until another best accuracy calibration is
performed in this slot.
If you perform another best accuracy calibration on that plug-in in a different
slot or mainframe, when you bring the plug-in back into the original slot, and
as long as another best accuracy calibration was not performed in that slot,
the original best accuracy calibration factors are retained.
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