3 VMA Mode
3.1 Digital Demod Measurement
State Saved Yes
Min 1.0Hz
Max Max Info BW (hardware dependent)
Backwards Compatibility
SCPI
[:SENSe]:DDEMod:SRATe
Points / Symbol
Enables you to set how many points are displayed per symbol in time displays of
demodulated data. The available values are 1, 2, 4, 5, 10 and 20.
Minimum (except OQPSK): 1 point per symbol
Minimum (OQPSK): 2 points per symbol
Maximum: 20 points per symbol
For example, if the value of Points/Symbol is 1, each display point corresponds to a
symbol. If the value is 5, the 5th display point corresponds to a symbol–in this case,
an IQ diagram would show 4 display points between each symbol.
OQPSK Demodulation: For OQPSK, an even number of Points/Symbol are required
due to the offset between I and Q. If you specify an odd value for Points/Symbol, the
instrument chooses the next, lower, even value.
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:PPSYmbol <integer>
[:SENSe]:DDEMod:SEGMent1|…|6:PPSYmbol?
Example
:DDEM:SEGM1:PPSY 2
:DDEM:SEGM1:PPSY?
Couplings If Modulation Format is Edge, this value is fixed to 1 and the control is grayed out. If Modulation Format
is Offset QPSK or Shaped Offset QPSK, the available values are 2, 4, 10, and 20. Otherwise, the
available values are 1, 2, 4, 5, 10 and 20
Numeric entries are rounded to the nearest valid value
Preset 10
State Saved Yes
Min 1
Max 20
Backwards
Compatibility
SCPI
[:SENSe]:DDEMod:PPSYmbol
Meas Filter
Accesses a menu for selecting the Meas Filter used by the receiver.
337 Vector Modulation Analyzer Mode User's &Programmer's Reference
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