Keysight N9918A - Page 325

Keysight N9927-90001 User’s Guide 325
Pulse Measurements Mode – Option 330
Pulse Measurement Settings
—Then Trig Type
— Then choose from the following:
— Freerun
The USB Power Sensor acquires data without waiting for a
trigger. This mode is NOT supported for Trace Graph measurements.
— Internal
The USB Power Sensor acquires data when a valid pulse
signal is detected at the RF input. The following Trigger settings
determine the validity of the trigger signal.
— External
The USB Power Sensor acquires data when a valid TTL
signal is detected at the USB Power Sensor external trigger input.
Trigger Edge
This setting determines which edge of a trigger signal initiates data
acquisition.
—Press Sweep 3
—Then Trigger
—Then Trigger Edge
— Then choose from the following:
— Pos
Acquisition is triggered by the rising (positive) edge of a valid
signal.
— Neg
Acquisition is triggered by the falling (negative) edge of a valid
signal.
Trigger Delay
After a valid trigger signal is received at the USB Power Sensor, data
acquisition begins after the specified Trigger Delay time PLUS the specified
Start time. See the Pulse Timing diagram in “Trigger Settings Annotation” on
page 327 for more information.
—Press Sweep 3
—Then Trigger
—Then Trigger Delay
— Then enter a value using the numeric keypad, the arrows, or the rotary
knob.
Auto Trigger
Used ONLY when Trigger Type = Internal, this setting determines whether the
trigger level is set manually or is set to the default level in the USB Power
Sensor firmware.
—Press Sweep 3
—Then Trigger