7 Trigger Functions
Trigger
TRIG:RF:SOUR VID
Selects video triggering for the SANalyzer measurement and the RF input. For SAN, do not use the
<measurement> keyword.
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 RF Trigger Source, the following trigger
sources are available:
−
IMMediate - free run triggering
−
VIDeo - triggers on the video signal level
−
LINE - triggers on the power line signal
−
EXTernal1 (or EXTernal) - triggers on an externally connected trigger source marked “Trigger 1
In” on the rear panel
−
EXTernal2 - triggers on an externally connected trigger source marked “Trigger 2 In” on the
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:<measurement>[:SEQuence]:IQ:SOURce EXTernal1 | EXTernal2 |
IMMediate | IQMag | IDEMod | QDEMod | IINPut | QINPut | AIQMag
:TRIGger:<measurement>[: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:
W-CDMA & HSPA Measurement Applications Reference
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Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...