Keysight N9923A, User Manual, Page: 183 / 276

Keysight N9923-90001 User’s Guide
183
Data Analysis Features
All about Markers
—
Peak Excursion
The vertical distance (dB) between the peak and the
valleys on both sides. To be considered a peak, data values must “fall
off” from the peak on both sides by the excursion value. Default = 0.5
dB for CAT and NA Modes; 6 dB for SA Mode.
For example, the settings for the trace in the following image are:
—Threshold: –10 dB
—Excursion: 1 dB
—Scale = 1 dB / Division.
Peak A = Valid Peak (Above Threshold and Excursion Settings)
Peak B = Invalid Peak (Below 1 dB Excursion Setting)
Peak C = Invalid Peak (Below –10 dB Threshold Setting)
Marker Functions
Marker functions are used to change FieldFox frequency or distance settings to
those of the active marker.
How to use Marker Functions
— Activate the marker to move.
— Then press Mrk ->/Tools
— Then Mkr ->
Then choose one of the following:
— Mrk -> Center (Not available in DTF or SA mode with zero span) The center
frequency of the measurement becomes the value of the active marker. The
frequency span is adjusted accordingly.
— Mkr -> Delay (NA mode ONLY.) The group delay value of the active marker
becomes the electrical delay setting of the trace. Learn how to set group
delay format in
“Calibration Settings” on page 46 . Learn more about
electrical delay in
“Electrical Delay” on page 49
.
The following applies to DTF Measurements ONLY:
— More then: