Keysight E6640A, Measurement Applications User & Programmer Reference

Page: 1291 / 2870

10 Spectrum Emission Mask Measurement
Sweep/Control
State Saved Saved in instrument state
Initial S/W Revision Prior to A.02.00
Modified at S/W Revision A.04.00
Trigger Slope
It is set positive to trigger on a rising edge and negative to trigger on a falling edge.
Key Path
Trigger, RF Burst
Remote Command :TRIGger[:SEQuence]:RFBurst:SLOPe POSitive|NEGative
:TRIGger[:SEQuence]:RFBurst:SLOPe?
Example TRIG:RFB:SLOP NEG
Couplings This same slope is used in the RF Burst selection for the trigger source in the Trigger menu and for
the period timer sync source (in the Trigger menu and in the Gate Source menu).
Preset POSitive
State Saved Saved in instrument state
Backwards
Compatibility SCPI :TRIGger[:SEQuence]:FRAMe:RFBurst:SLOPe
Backwards Compatibility
Notes The legacy :TRIGger[:SEQuence]:SLOPe command affects the slopes for the VID, LINE, EXT1, EXT2,
and RFB triggers.
Initial S/W Revision Prior to A.02.00
Sync Holdoff
Sync Holdoff specifies the duration that the sync source signal must be kept false before the transition to
true to be recognized as the sync timing. The periodic timer phase is aligned when the sync source signal
becomes true, after the Holdoff time is satisfied.
A holdoff of 2 ms will work with most WiMAX signals, but there may be cases where the burst off duration is
less than 1 ms and this value will need to be changed.
Key Path
Trigger, Periodic Timer
Remote Command :TRIGger[:SEQuence]:FRAMe:SYNC:HOLDoff <time>
:TRIGger[:SEQuence]:FRAMe:SYNC:HOLDoff?
:TRIGger[:SEQuence]:FRAMe:SYNC:HOLDoff:STATe OFF|ON|0|1
:TRIGger[:SEQuence]:FRAMe:SYNC:HOLDoff:STATe?
Preset On, 1.000 ms
State Saved Saved in instrument state
Min 0 ms
Max +500 ms
Default Unit s
Initial S/W Revision Prior to A.02.00
W-CDMA & HSPA Measurement Applications Reference 1291