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Trigger Source Choices

Applies only to burst and sweep. You must specify the source from which

the function generator will accept a trigger.

• From the front panel, the function generator will accept a single

trigger, a hardware trigger from the Ext Trig terminal, or

continuously output bursts or sweeps using the internal trigger.

At power-on, internal trigger is selected.

• From the remote interface, the function generator will accept

a software (bus) trigger, a hardware trigger from the Ext Trig

terminal, or an immediate internal trigger.

• The trigger source setting is stored in volatile memory; the source is

set to internal trigger (front panel) or immediate (remote interface)

when power has been off or after a remote interface reset.

• To select the trigger source from the remote interface, use the

following command. The APPLy command automatically sets the

trigger source to IMMediate .

TRIGger:SOURce {IMMediate|EXTernal|BUS}

Internal Triggering In this trigger mode, the function generator

continuously outputs the burst or sweep (as specified by the burst rate

or sweep time). This is the power-on trigger source for both front-panel

and remote interface use.

To select the internal trigger source from the remote interface, use the

following command. The APPLy command automatically sets the

trigger source to IMMediate.

"TRIGGER:SOURCE IMMEDIATE"

Chapter 3 Features and Functions

Triggering

HP 33120A User Manual

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