Keysight Technologies FieldFox A Series, User Manual

Page: 473 / 756

Keysight N9927-90001 User’s Guide 473
Pulse Measurements Mode – Option 330
Pulse Measurement Settings
— Frequency Sets the center frequency of the carrier on which pulse
modulation resides. This is used to set amplitude correction of the
USB Power Sensor.
How to set Time
Specify the time over which data will be acquired by the USB Power Sensor.
When Trace Graph is selected, Tr 1 is annotated with these values. Time can
be specified using either of the following pairs of values:
— Center 1 and Time/div 1 Specify the center time and time per division.
— Start Time and Time Length Specify the start time and length of
acquisition.
— A positive start time indicates a delay after the sensor detects a pulse
signal.
— A negative start time displays data that is acquired BEFORE the sensor
detects a pulse signal (or T-zero).
— Follow each by entering a value using the numeric keypad, the arrows,
or the rotary knob.
— After using the keypad, select a multiplier key. Learn about multiplier
abbreviations.
Zoom Window
When Trace Graph is selected as the measurement, a secondary Zoom Trace
can be used to view a zoomed portion of Tr 1 . When Zoom Window is ON, blue
vertical posts appear on Tr 1 to indicate the current start, center, and stop
times of the zoom window. The zoom window can be scaled using the standard
Scale settings.
How to make Zoom Window settings
— Press Measure
— Then Trace Graph
— Press Trace 6
— Then Zoom Window OFF ON
— Then choose from the following:
— ON Opens the zoom window on the bottom half of the FieldFox
screen. The window includes the zoomed trace.
— OFF Closes the zoom window.
— Zoom Center While monitoring the T within the blue vertical posts on Tr 1 ,
enter a value for the center time using the numeric keypad, the
arrows, or the rotary knob.