Technical data

558 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
24 Measure Commands
:MEASure:PREShoot
Command :MEASure:PREShoot [<source>]
The :MEASure:PREShoot command measures the preshoot of the first edge
on the screen. Sources are specified with the :MEASure:SOURce command
or with the optional parameter following the :MEASure:PREShoot
command.
The algorithm is:
If the first edge on the screen is rising,
then
preshoot = (Vbase - Local Vmin) / Vamplitude
else
preshoot = (Local Vmax - Vtop) / Vamplitude.
<source> {CHANnel<N> | FUNCtion<N> | WMEMory<N> | CLOCk | MTRend |
MSPectrum | EQUalized}
MTRend and MSPectrum sources are only available if the oscilloscope has
the EZJIT option installed and the feature is enabled.
The CLOCk source is only available if the oscilloscope has the High Speed
Serial option installed and the feature is enabled.
The EQUalized source is only available if the oscilloscope has the High
Speed Serial option and the Serial Data Equalization option installed and
the features are enabled. This command uses the Feed- Forward Equalized
(FFE) signal as the source.
<N> CHANnel<N> is an integer, 1 - 4.
FUNCtion<N> and WMEMory<N> are:
An integer, 1 - 4, representing the selected function or waveform memory.
Example This example measures the preshoot of the waveform on the screen.
myScope.WriteString ":MEASURE:PRESHOOT CHANNEL1"
Query :MEASure:PREShoot?[<source>]
The :MEASure:PREShoot? query returns the measured preshoot of the
specified source.
Returned Format
[:MEASure:PREShoot] <value>[,<result state>]<NL>
<value> Ratio of preshoot to amplitude, in percent.