Technical data

Sweep 23
Agilent N8201A Performance Downconverter Synthetic Instrument Module, 250 kHz to 26.5 GHz 467
Gate Setup
Accesses menu keys that setup various gate parameters.
Some instruments require a hardware upgrade before gating can be used.
Key Path: Sweep
Gate View
Gate View shows you a display of the gate settings referenced to the signal. The first
vertical line is gray. It is the reference location for the gate delay and marks the point where
the trigger conditions are met. The green line after that shows the end of the Delay period,
where the gate is enabled. The second green line shows the end of the gate-enabled period.
The time between the two green lines is Length.
When the gate view is turned on, the instrument is set to zero span. Gate View is
automatically turned off if a span other than zero is selected. Whenever you are in gate
view, the display is triggered from the Gate Source. The start of the trace begins a small
amount of time before the trigger occurs. (Note that the gate itself is turned off when the
gate view is displayed, otherwise you would not be able to see the full signal.) An example
of a gate view display is shown below.
:
Figure 9 Gate View Display
You can view the gate lines while you adjust the gate delay and gate length so that the gate
is enabled during the desired period, relative to the gate trigger signal.