TDS5000B Online Programmer Guide
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MEASUrement:METHod
Description
This command sets or queries the method used to calculate the 0% and
100% reference level. This command is equivalent to selecting Refer-
ence Levels from the Measure menu and then choosing the desired De-
termine Base, Top From setting.
Group
Measurement
Related Commands
MEASUrement:REFLevel:PERCent:HIGH,
MEASUrement:REFLevel:PERCent:LOW,
MEASUrement:REFLevel:PERCent:MID,
MEASUrement:REFLevel:PERCent:MID2
Syntax 1
MEASUrement:METHod {HIStogram|MEAN|MINMax)
Syntax 2
MEASUrement:METHod?
Arguments
H HIStogram
This sets the high and low reference levels to the most common val-
ues either above or below the mid point, depending on whether the
high reference point or the low reference point is being defined. Be-
cause the statistical approach ignores short--term aberrations, such as
overshoot or ringing, the histogram method is the best setting for ex-
amining pulses.
H MEAN
This sets the high and low reference levels to the mean values using
all values either above or below the midpoint, depending of whether it
is defining the high or low reference level. The selection is best used
for examining eye patterns.
H MINMax
This uses the highest and lowest values of the waveform record. This
selection is best for examining waveforms with no large, flat portions
of a common value, such as sine waves and triangle waves.
Example 1
MEASUrement:METHod HIStogram
This command specifies that the high and low reference levels are set
statistically.