Keysight Technologies FieldFox N9912A104 User Manual page 248

Data Analysis Features
All about Markers
How to Search with Markers
The following menu structure applies to NA Mode. Keystrokes will be slightly
different for CAT, Pulse Measurements, and SA Modes.
— Activate the marker to be used for the search (NOT necessary with
Bandwidth search.)
— Then press Mrk ->/Tools.
— Then
— Then choose one of the following:
16- 8
Marker Search.
— Tracking ON OFF (NA Mode ONLY)
——ON causes the active marker to search for the specified criteria
with each new sweep. Search criteria can include: Target,
Bandwidth, Peak, Min. The searches begin with the first sweep
after Tracking is turned ON, based on the current search type.
Trk appears next to the marker number.
——OFF causes a new marker search only when the search feature
is re-executed.
— Peak Moves the active marker to the HIGHEST amplitude data point
of the trace. Peak Excursion value is ignored. In SA Mode, the LO
feed-through signal (0 Hz) is also ignored.
— Min (Not available in DTF) Moves the active marker to the LOWEST
amplitude data point of the trace.
— Target (NA Mode and Pulse Measurements ONLY) Enter the Target
value. The marker moves to the first occurrence of the Target value to
the right of its current position. The FieldFox interpolates between
measured data points to find the exact Target value to two decimal
points. The interpolated X-axis value is displayed in the marker
readout or marker table. Subsequent presses of the Target softkey
cause the marker to move to the right to find the next occurrence of
the Target value. When the marker reaches the end of the stimulus
range, it "wraps around" and continues the search from the beginning
of the stimulus range.
— Band wid th ON OFF
Markers ON and OFF. When OFF, the marker table appears showing
the X and Y-axis positions of all enabled markers.
— Band wid th (NA Mode ONLY) Specify the level in dB from the peak or
valley where bandwidth is measured.
——Negative numbers search for a Peak bandpass, such as a filter
S21 response.
Either of the following TWO methods can be used to search for a
Valley or Notch filter, such as the S11 response of a bandpass
filter.
(NA Mode ONLY) Use to quickly toggle BW
Keysight N9912-90001 User's Guide