10 Monitor Spectrum Measurement
Peak Search
Next Peak Left
Moves the selected marker to the nearest peak to the left of the current marker that meets all enabled
peak criteria. If there is no valid peak to the left of the current marker position, an error is generated and the
marker is not moved.
If the selected marker was off, then it is turned on as a normal marker and a peak search is performed.
Key Path
Peak Search
Remote Command
:CALCulate:MONitor:MARKer[1]|2|...|12:MAXimum:LEFT
Example CALC:MON:MARK2:MAX:LEFT
Initial S/W Revision A.13.00
Min Search
Moves the selected marker to the minimum y-axis value on the current trace. Minimum (negative) peak
searches do not have to meet the peak search criteria. It just looks for the lowest y-axis value. If the
selected marker is Off, it is turned on before the minimum search is performed.
Key Path
Peak Search
Remote Command
:CALCulate:MONitor:MARKer[1]|2|...|12:MINimum
Example CALC:MON:MARK:MIN selects marker 1 and moves it to the minimum amplitude value.
Notes Sending this command selects the subopcoded marker
Initial S/W Revision A.13.00
Peak Criteria
Pressing this key opens the Peak Criteria menu and allows you to adjust the Pk Threshold and Pk Excursion
parameters used for peak search functions.
For a signal to be identified as a peak it must meet certain criteria. Signals in the negative frequency range
and signals very close to 0 Hz are ignored. If either the peak excursion or peak threshold functions are on,
then the signal must satisfy those criteria before being identified as a peak.
When peak excursion and peak threshold are both off:
• Peak Search, Continuous Peak Search, and maximum part of Pk-Pk Search will search the trace for the
point with the highest y-axis value that does not violate the LO feedthrough rules. A rising and falling slope
are not required for these three peak search functions.
• The remaining search functions Next Peak, Next Pk Right, etc. will only consider trace points that have a
rising and falling slope on the left and right respectively.
Key Path
Peak Search
State Saved Saved in instrument state
Initial S/W Revision A.13.00
814 EMI Receiver Mode Reference
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