What Is A 'Peak - Keysight Technologies FieldFox N9912A104 User Manual

Data Analysis Features
All about Markers
After pressing Enter, four markers are automatically created to find the first
negative or positive bandpass over the displayed frequency range.
Bandwidth Search can be used ONLY with Log Mag display format.
The following six values are displayed for Bandwidth Search:
— BW: Width of the filter. (marker 2 freq) minus (marker 3 freq).
— Center: Marker 4 frequency. Mathematical midpoint between marker 2 and
marker 3.
— Q: Center Frequency / Bandwidth.
— Loss: Marker 1 amplitude.
— Left: Frequency of marker 2 or 3 (to left of marker 1).
— Right: Frequency of marker 2 or 3 (to right of marker 1).
— Press Back to return to the previous menu.
Press
— Peak
trace. Peak Excursion value is ignored. In SA Mode, the LO feed-through
signal (0 Hz) is also ignored.
— Next Peak
where it currently resides.
— Peak Left
meets the 'Peak' criteria. When no data points to the left meet the 'Peak'
criteria, the marker does not move.
— Peak Right
meets the 'Peak' criteria. When no data points to the right meet the 'Peak'
criteria, the marker does not move.
The following applies to DTF Measurements ONLY:
— More
— Track Peaks ON OFF
peak with every sweep. While in this Mode, the markers can NOT be turned
OFF or moved.
— Find 3 Peaks
on the trace.

What Is a 'Peak'

You define what the FieldFox considers a "peak" by setting the Peak Threshold
and Peak Excursion.
These two peak criteria settings are set individually for each trace and for each
mode (CAT, SA, or NA).
16- 10
Peak Search then choose from the following:
Moves the active marker to the HIGHEST amplitude data point of the
Moves the active marker to the next highest amplitude peak from
Moves the active marker to the next data point to the left that
Moves the active marker to the next data point to the right that
then:
When Track Peaks is ON, markers will find the new
Three markers are created and find the highest peaks (faults)
Keysight N9912-90001 User's Guide