3 VMA Mode
3.1 Digital Demod Measurement
Max 1
Backwards Compatibility
SCPI
[:SENSe]:DDEMod:FILTer:ALPHa
BT
Determines the filter characteristics of the Gaussian filters used by the instrument's
digital demodulator. These characteristics apply to both the Ref filters.
Remote Command
[:SENSe]:DDEMod:SEGMent1|…|6:FILTer:BT <real>
[:SENSe]:DDEMod:SEGMent1|…|6:FILTer:BT?
Example
:DDEM:SEGM1:FILT:BT 0.5
:DDEM:SEGM1:FILT:BT?
Dependencies Available for Gaussian filter only
Preset 0.6
State Saved Yes
Min 0.05
Max 100
Backwards Compatibility
SCPI
[:SENSe]:DDEMod:FILTer:BT
Advanced Setup
Enables you to access advanced demodulation parameters on one screen.
General
Allows you to configure general advanced parameters for de-modulation algorithm.
Equalizer
Turns the adaptive equalization filter on or off. Adaptive equalization uses the
measured signal to determine the coefficients of the equalization filter.
When equalization is on, the equalization filter has a unit impulse response. The
length of the filter determines the position of the unit impulse response in the filter.
The impulse is located in the center of the filter for short filter lengths. As the filter
length increases, the impulse moves, proportionally, towards the start of the filter to
handle channels with large delay-spread.
341 Vector Modulation Analyzer Mode User's &Programmer's Reference