3 WLAN Mode
3.6 Modulation Analysis Measurement
3.6.7.3 Peak Search
The controls on this tab allow you to move the marker to selected peaks of the
signal, giving you enormous analysis capabilities, particularly when combined with
the Delta Marker function.
NOTE
Pressing the Peak Search hardkey automatically moves you to the Peak Search
page of the Marker menu AND performs a Peak Search.
Pressing the Peak Search tab once you are already IN the Marker menu does
NOT perform a Peak Search.
Marker X
See "Marker X" on page 959, on the Settings tab.
Peak Search
Moves the selected marker to the trace point which has the maximum y-axis value
for that marker’s trace.
Pressing the Peak Search hardkey automatically moves you to the Peak Search
page of the Marker menu and performs a Peak Search.
Remote
Command
:CALCulate:EVM:MARKer[1]|2|…|12:MAXimum
Example
:CALC:EVM:MARK2:MAX
The command SYST:ERR? can be used to query the errors to determine if a peak is found. The message
“No peak found” (–200) will be returned after an unsuccessful search
Next Peak
Moves the selected marker to the peak that is next lower in amplitude than the
current marker value. If there is no valid peak lower than the current marker
position, a “No peak found” message 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.
Remote Command
:CALCulate:EVM:MARKer[1]|2|…|12:MAXimum:NEXT
Example
:CALC:EVM:MARK2:MAX:NEXT
State Saved Not saved in instrument state
WLAN Mode User's &Programmer's Reference 964
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