The Search menu uses markers to locate specific points on the trace.
The search functions are tools for searching measurement data according to specific criteria. A search consists of analyzing the measurement points of the current trace (or of a user-defined subrange termed the Search Range) in order to find one of the following:
Absolute or relative (local) maxima and minima (minimum/maximum search).
Trace points with a specific response value (target search).
Trace segments with a shape that is characteristic for bandpass or bandstop filters (bandfilter search).
When the search is activated, the active marker is moved to the (next) point that meets the search criteria. If the trace contains no markers, a M 1 is created and used for the search. The search result is displayed in the marker info field. If no search result can be found, the marker remains at its original position.
Some search functions can be activated repeatedly in order to find all possible search results. Moreover the analyzer provides a Tracking mode where the search is repeated after each sweep.
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Max Search sets the active marker to the absolute maximum in the search range.
Min Search sets the active marker to the absolute minimum in the search range.
Next Peak sets the active marker to the next maximum or minimum in the search range, depending on the current search criterion.
Peak Search > sets the active marker to the next peak with higher stimulus value.
< Peak Search sets the active marker to the next peak with lower stimulus value.
Target opens a submenu to search for a specific value on the trace.
Marker Tracking causes the search to be repeated after each sweep.
Bandfilter opens a submenu to search for trace segments with characteristic bandfilter shape and calculate the filter parameters.
Define Peak defines the criteria for the peak search.
Search Range... assigns a search range to each marker of the current trace.
The search functions are available in all Cartesian and
polar diagram types (see Trace
– Format).
In polar diagrams (Polar, Smith, Inverted
Smith), where complex values are displayed, the magnitude of the
response values provides the search criterion.
Sets the active marker to the absolute maximum in the search range, i.e. to the largest of all response values. If a complex trace format (e.g. a polar diagram) is active, the marker is set to the measurement point with the maximum magnitude.
By default the search range coincides with the sweep range. If the active trace contains no markers, a marker M 1 is created to indicate the search result.
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Remote control: |
CALCulate<Chn>:MARKer<Mk>:FUNCtion:EXECute
MAXimum |
Sets the active marker to the absolute minimum in the search range, i.e. to the smallest of all response values. If a complex trace format (e.g. a polar diagram) is active, the marker is set to the measurement point with the minimum magnitude.
By default the search range coincides with the sweep range. If the active trace contains no markers, a marker M 1 is created to indicate the search result.
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Remote control: |
CALCulate<Chn>:MARKer<Mk>:FUNCtion:EXECute
MINimum |
Sets the active marker to the next maximum or minimum in the search range, depending on the current search criterion.
If a Max Search or a Bandpass Search is active, then the marker is set to the next maximum. The next maximum is the maximum with the largest response value that is below the current marker response value.
If a Min Search or a Bandstop Search is active, then the marker is set to the next minimum. The next minimum is the minimum with the smallest response value that is above the current marker response value.
By default the search range coincides with the sweep range. If the active trace contains no markers, a marker M 1 is created to indicate the search result. Next Peak is disabled while a Target Search is active.
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Remote control: |
CALCulate<Chn>:MARKer<Mk>:FUNCtion:EXECute NPEak |
Sets the active marker to the next peak with higher stimulus value. If the active trace contains no markers, a marker M 1 created to indicate the search result. The peak criteria are defined via Define Peak.
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Remote control: |
CALCulate<Chn>:MARKer<Mk>:FUNCtion:EXECute
RPEak |
Sets the active marker to the next peak with lower stimulus value. If the active trace contains no markers, a marker M 1 created to indicate the search result. The peak criteria are defined via Define Peak.
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Remote control: |
CALCulate<Chn>:MARKer<Mk>:FUNCtion:EXECute
LPEak |
