3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
This function is automatically set ON (thus turning on the Peak Threshold line)
whenever the value of Peak Threshold or Peak Excursion becomes the active
function, unless Peak Threshold is OFF. It is automatically set OFF whenever Peak
Threshold is set to OFF. Manually turning it ON automatically turns on Peak
Threshold.
The Peak Excursion part is ON whenever the Peak Threshold part is ON, unless Peak
Excursion is OFF.
Peak Search Mode
Lets you specify what kind of search you want to do when Peak Search is pressed (or
the equivalent command sent).
Note that there are two “types” of peak search functions. One type is the “Peak
Search” type, the other type is the “Next Peak” type. “Next Peak” searches (for
example, Next Peak, Next Pk Left, Next Pk Right) are qualified by using the Excursion
and Threshold criteria. The “Peak Search” type of search simply finds the highest
point on the trace.
However, using the Peak Search Mode control, you can change the “Peak Search”
type of search so that it also uses the Excursion and Threshold criteria. This lets you
find the Maximum point on the trace that also obeys the Excursion and/or Threshold
330 Spectrum Analyzer Mode User's &Programmer's Reference
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