Keysight x-series Programmer's Reference

3 VMA Mode
3.1 Digital Demod Measurement
FFT Window
Enables you to choose the Window function that is applied to the time data prior to
the FFT calculation used for Spectrum, Error Vector Spectrum, IQ Meas Spectrum,
and IQ Ref Spectrum results.
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:FFT:WINDow:TYPE UNIForm | HANNing | GAUSsian |
FLATtop
[:SENSe]:DDEMod:SEGMent1|…|6:FFT:WINDow:TYPE?
Example
:DDEM:SEGM1:FFT:WIND:TYPE FLAT
:DDEM:SEGM1:FFT:WIND:TYPE?
Preset
FLAT
State Saved Yes
Range Uniform | Hanning | Gaussian | Flat top
Backwards
Compatibility
SCPI
[:SENSe]:DDEMod:FFT:WINDow:TYPE
Spectrum
Sets a spectrum to either Normal or Inverted for demodulation related
measurements. If set to INVert, the upper and lower spectrums are swapped.
The invert function conjugates the spectrum, which is equivalent to taking the
negative of the quadrature component in demodulation. The correct setting (Normal
or Inverted) depends on whether the signal at the input of the instrument has a high
or a low side mix.
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:SPECtrum INVert | NORMal
[:SENSe]:DDEMod:SEGMent1|…|6:SPECtrum?
Example
:DDEM:SEGM1:SPEC INV
:DDEM:SEGM1:SPEC?
Preset
NORMal
State Saved Saved in instrument state
Range
Normal | Invert
Backwards
Compatibility
SCPI
[:SENSe]:DDEMod:SPECtrum
345 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)