What Is A 'Peak - Keysight N9912A User Manual

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The following applies to DTF Measurements ONLY:
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What Is a 'Peak'

You define what the FieldFox considers a "peak" by setting the Peak Threshold and
Peak Excursion.
These two peak criteria settings are set individually for each trace and for each mode
(CAT, SA, or NA).
These settings do NOT survive a FieldFox or Mode Preset.
NOTE The Peak Threshold and Excursion settings are NOT available in DTF measurements.
To make these settings, create a non-DTF CAT mode measurement, then change the
measurement back to DTF.
How to set Peak Criteria
 Press Mrk ->/Tools.
 In CAT and NA modes:
 In SA mode:
 Then
 Then select the following:
154
 Right: Frequency of marker 2 or 3 (to right of marker 1).
then choose from the following:
Peak Search
Moves the active marker to the HIGHEST amplitude data point of the trace.
Peak
Peak Excursion value is ignored. In SA Mode, the LO feed-through signal (0 Hz) is
also ignored.
Moves the active marker to the next highest amplitude peak from
Next Peak
where it currently resides.
Moves the active marker to the next data point to the left that meets
Peak Left
the 'Peak' criteria. When no data points to the left meet the 'Peak' criteria, the
marker does not move.
Moves the active marker to the next data point to the right that
Peak Right
meets the 'Peak' criteria. When no data points to the right meet the 'Peak' criteria,
the marker does not move.
then:
More
Track Peaks ON OFF
with every sweep. While in this Mode, the markers can NOT be turned OFF or
moved.
Three markers are created and find the highest peaks (faults) on
Find 3 Peaks
the trace.
Then
Peak Search.
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Then
More
o
Then
Mkr Properties
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Peak Criteria
When Track Peaks is ON, markers will find the new peak
FieldFox User's Guide