602 Keysight N9915-90020 User’s Guide
Pulse Measurements Mode – Option 330
Pulse Measurement Settings
A Waiting for Trigger message on the FieldFox screen is posted on behalf of
the USB Power Sensor when it is waiting for a pulse signal at the RF Input
(Internal) or a TTL signal at the USB Sensor External Trigger input.
How to make Trigger settings
—Press Sweep 3
—Then Trigger
—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 604
for more information.
—Press Sweep 3
—Then Trigger
—Then Trigger Delay
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