Agilent Technologies 8614 B Series User Manual page 125

Optical spectrum analyzer
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Peak to Center
Finds the highest amplitude trace point and sets the center wavelength to that wavelength.
Key Path
Remote Commands
Peak Excursion (Marker Setup Panel)
Sets the peak excursion value for the marker search functions.
For marker search functions, a signal peak is defined as a rise and fall in the displayed response
by at least the peak excursion value. If peak excursion is set too high, legitimate peaks may not
be discerned as signals. With lower values more signals will be discerned, but peaks in the noise
floor may also be discerned as signals. To reduce the noise floor variance to a value less than the
peak excursion rate, try using video averaging and/or lowering the sensitivity.
Key Path
Related Functions
Remote Commands
Wavelength > Peak to Center
CALCulate[1|2|3|4|5|6]:MARKer[1|2|3|4]:MAXimum
CALCulate[1|2|3|4|5|6]:MARKer[1|2|3|4]:SCENter
SENSe:WAVelength:CENTer
Markers > Marker Setup > Peak Excursion
Marker Search Threshold, Next Peak Down Ø, Next Peak Right Æ, Next Peak Left ¨
CALCulate[1|2|3|4|5|6]:MARKer[1|2|3|4]:PEXCursion:PEAK
Peak excursion criteria
Function Reference
Peak to Center
3-51

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