Keysight EXG and MXG X-Series Signal Generators User’s Guide
223
Basic Digital Operation (Option 653/655/656/657)
Triggering a Waveform
Example: Gated Triggering
Gated triggering enables you to define the on and off states of a modulating waveform.
1.
Connect the output of a function generator to the signal generator’s rear panel PAT TRIG IN
connector, as shown in the following figure. This connection is applicable to all external
triggering methods. The optional oscilloscope connection enables you to see the effect that
the trigger signal has on the RF output.
2.
Preset the signal generator.
3.
Configure the RF output:
—
Set the desired frequency.
—
Set the desired amplitude.
—
Turn on the RF output.
4.
Select a waveform for playback (sequence or segment):
a.
Press
Mode
>
Dual ARB
>
Select Waveform
.
b.
In the
Segment On
or
Sequence On
column, highlight a waveform.
c.
Press
Select Waveform
.
5.
Set the triggering as follows:
—
Trigger type: Gated
Press
Trigger Type
>
Gated
.
—
Active state: Low
Press
Active Low
.
—
Trigger source: External
Press
Trigger Source
>
Ext
.
—
Input connector: Rear panel Patt Trig In BNC
Press
Ext Source
>
Patt Trig In 1
.
6.
Generate the waveform: Press
Return
>
ARB Off On
until On highlights.
7.
On the function generator, configure a TTL signal for the external gating trigger.
