Keysight x-series Programmer's Reference

3 VMA Mode
3.1 Digital Demod Measurement
[:SENSe]:DDEMod:SYNC:SLENgth:AUTO OFF | ON | 0 | 1
[:SENSe]:DDEMod:SYNC:SLENgth:AUTO?
Example
:DDEM:SYNC:SLEN 3.0 ms
Set the search length to 3 ms
:DDEM:SYNC:SLEN?
:DDEM:SYNC:SLEN:AUTO OFF
:DDEM:SYNC:SLEN:AUTO?
Couplings Manual:
Changing Meas Interval, Meas Offset or Symbol Rate will changes Search Length if Search Length is
less than (1.2 * (Meas Interval + Meas Offset) / Symbol Rate), no matter what status of the Burst Search
or Sync Search is
Changing Search Length checks with current allowable minimum value (1.2 * (Meas Interval + Meas
Offset)/ Symbol Rate), if the input value is less than it, the value is clipped to the minimum value, and a
data out of range message “Data out of range; Search Length was clipped to the minimum value of xxx
ms based on current Meas Interval and Symbol Rate” is displayed
Auto: Search Length = (3.1 * (Meas Interval + Meas Offset)/ Symbol Rate)
Preset 3.0E-3
OFF
State Saved Yes
Yes
Range
Auto | Man
Min 1.0E-7
Max 9.9E+37
Meas Interval
Sets the number of symbols that the demodulation will analyze. This and the symbol
rate set the overall time record length (in seconds) that is used by the demodulator.
It also indirectly sets the resolution bandwidth for the various spectrum results.
(ResBW cannot be set independently.)
The resolution bandwidth is annotated below any spectrum trace.
Remote Command
[:SENSe]:DDEMod:SEGMent1|…|6:SWEep:POINts <integer>
[:SENSe]:DDEMod:SEGMent1|…|6:SWEep:POINts?
Example
:DDEM:SEGM1:SWE:POIN 100
:DDEM:SEGM1:SWE:POIN?
Preset 501
State Saved Yes
Min/Max 10/10000000
325 Vector Modulation Analyzer Mode User's &Programmer's Reference

Keysight x-series Specifications

General

Analysis Bandwidth	Up to 1 GHz (depending on model)
Real-Time Bandwidth	Up to 1 GHz (depending on model)
Form Factor	Benchtop
Connectivity	LAN, USB, GPIB
Resolution Bandwidth	1 Hz to 10 MHz (depending on model)