Keysight N9000B - Burst Search; Search Length

3 VMA Mode
3.1 Digital Demod Measurement
Remote Command
[:SENSe]:DDEMod:SEGMent1|…|6:SRATe <frequency>
[:SENSe]:DDEMod:SEGMent1|…|6:SRATe?
Example
:DDEM:SEGM1:SRAT 1 MHz
:DDEM:SEGM1:SRAT?
Couplings Changes when Info BW is smaller than Symbol Rate/10
Preset 1.0 MHz
State Saved Yes
Min 1.0Hz
Max Max Info BW (hardware dependent)
Backwards Compatibility
SCPI
[:SENSe]:DDEMod:SRATe
Burst Search
Turns burst search on or off.
Remote
Command
[:SENSe]:DDEMod:SYNC:BURSt[:STATe] OFF | ON | 0 | 1
[:SENSe]:DDEMod:SYNC:BURSt[:STATe]?
Example
:DDEM:SYNC:BURS OFF
Turn off the burst search
:DDEM:SYNC:BURS?
Preset
OFF
State Saved Yes
Range
Off|On
Annotation PULSE NOT FOUND appears in the corner of demod result traces if burst search fails
Search Length
Defines the time length that the instrument searches for a burst and/or sync word.
There are two Search Length modes:
–
Manual: Lets you manually set the Search Length
–
Automatic: Sets Search Length automatically according to Meas Interval, Meas
Offset and Symbol Rate (longest Segment for multiple Segment case). This is
recommended mode for wide band signal (>1GHz) analysis, to avoid
unnecessary long Search Length setting leads to slow measurement speed
Remote
Command
[:SENSe]:DDEMod:SYNC:SLENgth <time>
[:SENSe]:DDEMod:SYNC:SLENgth?
Vector Modulation Analyzer Mode User's &Programmer's Reference 324