Triggering - Keysight FieldFox B Series User Manual

RTSA (Real-time Spectrum Analyzer) Mode—Option 350
RTSA Mode Settings
The current Res BW setting is shown at the bottom of the screen.
#Res BW x.xx XHz (#) means manual setting.
This setting could impact the accuracy of the measurement. See Specifications
in Appendix B.

Triggering

Triggering only applies to Density Spectrum and Real-time Spectrum.
External, Video, and RF Burst triggering enable you to initiate an RTSA mode
sweep using an external event such as a signal burst.
Trigger Type
— Press Sweep 3
— Then
— Then
— Then choose from the following:
—
—
—
The following two selections are similar in that they both trigger a sweep from
a signal at the SA RF Input connector. Experiment with both selections to find
the best trigger type for your application.
266
— Man Enter a Res BW value using the numeric keypad, the
arrows, or the rotary knob. Then press a multiplier if necessary or
press Enter
Trigger Settings
Trig Type
Free Run Triggering is provided by the FieldFox internal circuitry. A new
sweep begins when the previous sweep ends.
External A sweep is triggered on an external TTL signal at the Ref In/Trig In
connector on the FieldFox top panel. Choose to trigger on the rising slope
at about 1.7 V or on the falling slope at about 1.0 V using the Trigger Slope
setting (below).
Periodic sets a trigger that repeats at the period rate entered. Periodic
trigger's phase can be altered by the Offset value.
Keysight N9938-90006 User's Guide