![Keysight E6640A Measurement Applications User & Programmer Reference Download Page 336](http://html1.mh-extra.com/html/keysight/e6640a/e6640a_measurement-applications-user-and-programmer-reference_1961645336.webp)
7 Trigger Functions
Trigger
Remote Command
:TRIGger[:SEQuence]:SLOPe POSitive|NEGative
:TRIGger[:SEQuence]:SLOPe?
Example
TRIG:SLOP NEG
Preset
POSitive
State Saved
Saved in instrument state
Backwards Compatibility
Notes
In ESA/PSA, the Trigger Slope was global to all triggers. In the X-Series, the slope can be set
individually for each Trigger Source. For backward compatibility, the global SLOPe command
updates all instances of trigger slope (VID, LINE, EXT1, EXT2, TV, RFB). The query returns the trigger
slope setting of the currently selected trigger source.
Initial S/W Revision
Prior to A.02.00
Trig Delay
Controls a time delay during that the analyzer will wait to begin a sweep after meeting the trigger criteria.
You can use negative delay to pre-trigger the instrument in the time domain or FFT, but not in swept spans.
Key Path
Trigger, Video
Remote Command
:TRIGger[:SEQuence]:VIDeo:DELay <time>
:TRIGger[:SEQuence]:VIDeo:DELay?
:TRIGger[:SEQuence]:VIDeo:DELay:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:VIDeo:DELay:STATe?
Example
TRIG:VID:DEL:STAT ON
TRIG:VID:DEL 100 ms
Notes
Video trigger delay may be set to negative values, in time domain, FFT and even swept. It makes
intuitive sense in time domain and works well in FFT mode where the bandwidth of the filter before
the video trigger is about 1.25 span. In swept spans, negative settings of Trig Delay are treated as a
zero setting within the internal hardware and the advisory message "Neg. Trig Delay unavailable in
Swept Mode, zero delay used." is generated when such a delay is set.
Preset
Off, 1 us
State Saved
Saved in instrument state
Min
–150 ms
Max
+500 ms
Default Unit
s
Backwards Compatibility
Notes
! For backward compatibility with VSA/PSA comms apps
:TRIGger[:SEQuence]:IF:DELay
:TRIGger[:SEQuence]:DELay
The legacy :TRIGger[:SEQuence]:DELay command affects the delay for the VID, LINE, EXT1, EXT2,
and RFB triggers.
Initial S/W Revision
Prior to A.02.00
336
W-CDMA & HSPA Measurement Applications Reference
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 ...