Agilent Technologies E4406A VSA manual TRIGger Subsystem, Automatic Trigger Control

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TRIGger Subsystem

TRIGger Subsystem

The Trigger Subsystem is used to set the controls and parameters associated with triggering the data acquisitions. Other trigger-related commands are found in the INITiate and ABORt subsystems.

The trigger parameters are global within the selected Mode. The commands in the TRIGger subsystem set up the way the triggers function, but selection of the trigger source is made from each measurement. There is a separate trigger source command in the SENSe:<meas> subsystem for each measurement. The equivalent front panel keys for the parameters described in the following commands, can be found under the Mode Setup, Trigger key.

Automatic Trigger Control

:TRIGger[:SEQuence]:AUTO:STATe OFFON01

:TRIGger[:SEQuence]:AUTO:STATe?

Turns the automatic trigger function on and off. This function causes a trigger to occur if the designated time has elapsed and no trigger occurred. It can be used with unpredictable trigger sources, like external or burst, to make sure a measurement is initiated even if a trigger doesn’t occur. Use TRIGger[:SEQuence]:AUTO[:TIME] to set the time limit.

Factory Preset
and *RST	Off for cdma2000, W-CDMA (3GPP) , W-CDMA (Trial &
	ARIB), NADC, and PDC
Front Panel
Access	Mode Setup, Trigger, Auto Trig

Automatic Trigger Time

:TRIGger[:SEQuence]:AUTO[:TIME] <time>

:TRIGger[:SEQuence]:AUTO[:TIME]?

After the measurement is activated the instrument will take a data acquisition immediately upon receiving a signal from the selected trigger source. If no trigger signal is received by the end of the time specified in this command, a data acquisition is taken anyway. TRIGger[:SEQuence]:AUTO:STATE must be on.

Factory Preset
and *RST:	100.0 ms
Range:	1.0 ms to 1000.0 s

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