I/q trigger source – Agilent Technologies Signal Analyzer N9030a User Manual

Page 1398

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Trigger

front panel. In some models, there is no second External input. In these models, the
External 2 key is blanked and the EXTernal2 parameter will generate a “Hardware missing;
Not available for this model number” message

−

RFBurst - triggers on the bursted frame

−

FRAMe - triggers on the periodic timer

−

IF (video) - same as video, for backwards compatibility only

*OPC should be used after requesting data. This will hold off any subsequent changes to the
selected trigger source, until after the sweep is completed and the data is returned.

Available ranges, and presets can vary from mode to mode.

Status Bits/OPC
dependencies

The Status Operation Register bit 5 "Waiting for Trigger" is set at the same time as the Sweeping
or Measuring bit is set. It is cleared when the trigger actually occurs (that is, after the trigger
event occurs and all the applicable trigger criteria have been met). A corresponding pop-up
message ("Waiting for trigger") is generated if no trigger signal appears after approximately 2
sec. This message goes away when a trigger signal appears.

Initial S/W Revision

Prior to A.02.00

I/Q Trigger Source

This command selects the trigger to be used for the specified measurement when I/Q (which
requires option BBA) is the selected input. The I/Q trigger source can be queried and changed
even while another input is selected, but it is inactive until I/Q becomes the selected input.

Remote Command

:TRIGger:[:SEQuence]:IQ:SOURce?

Example

TRIG:WAVeform:SOUR IQM

Selects I/Q magnitude triggering for the IQ Waveform measurement and the I/Q input

Notes

Not all measurements have all the trigger sources available to them. Check the trigger source
documentation for your specific measurement to see what sources are available.

Not all trigger sources are available for each input. For the I/Q Trigger Source, the following
trigger sources are available:

−

IMMediate - free run triggering

−

EXTernal1 (or EXTernal) - triggers on an externally connected trigger source on the rear

panel

−

EXTernal2 - triggers on an externally connected trigger source on the front panel

−

IQMag - triggers on the magnitude of the I/Q signal

−

IDEMod - triggers on the I/Q signal's demodulated I voltage

−

QDEMod - triggers on the I/Q signal's demodulated Q voltage

1398

Remote Language Compatibility Measurement Application Reference