LeCroy Digital Oscilloscopes, Manual

Page: 53 / 213

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The five main vertical parameters of the last acquisition,
displayed beneath the grid (
see previous screen
):
SNSN
the difference between maximum and minimum
data values
PHDQ
the average of data values
VGHY
the standard deviation of the data values from the
mean value
UPV
the square root of the sum of the squares of the
data values divided by the number of points
DPSO
the amplitude with noise and overshoot resistant
estimator (amplitude = top base).
67(3
Now, press to select “
6WG 7LPH
” from the “mode”
menu.
The five main horizontal parameters of the last pulse,
displayed beneath the grid (
next screen ):
SHULRG
the duration of a full cycle at 50% crossings
ZLGWK
of the first <50 pulses (+ or –) in the analyzed
region
ULVH
the transition time on the rising edge for 10–90%
amplitude
IDOO
the transition time for the falling edge from 90%–
10% amplitude
GHOD\
the time from the trigger (or t=0) to the first 50%
transition.