3 VMA Mode
3.1 Digital Demod Measurement
–
Relative To Capture (Default Setting) - Enables you to specify the segment2
offset from the start of the acquisition data
–
Relative To Sync Pattern - Enables you to specify the segment2 offset from the
start position of the sync pattern
Remote Command
[:SENSe]:DDEMod:SEGMent1|…|6:TIME:OFFSet:REFerence RCAPture | RSYNc
[:SENSe]:DDEMod:SEGMent1|…|6:TIME:OFFSet:REFerence?
Example
:DDEM:SEGM2:TIME:OFFS:REF RCAP
:DDEM:SEGM2:TIME:OFFS:REF?
Notes Relative To Sync Pattern is only available when sync search is on, otherwise it’s grayed out
Dependencies Only appears when Selected Segment is Segment2
Preset
RCAPture
State Saved Saved in instrument state
Range Relative To Capture | Relative To Sync Pattern
3.1.9.6 Demod
Enables you to set demodulation parameters.
Modulation Format
Displays a menu for selecting the digital communication format that is used by the
demodulator. Available selections are:
QAM QAM 16, QAM 32, QAM 64, QAM 128, QAM 256, QAM 512, QAM 1024
PSK BPSK, DBPSK, QPSK, Offset QPSK, Shaped Offset QPSK, π/4 DQPSK,
DQPSK, 8PSK, π/8 D8PSK, D8PSK
MSK Type 1, Type 2
FSK FSK 2, FSK 4, FSK 8, FSK 16, FSK 32, FSK 64
ASK ASK 2
DVB QAM DVB QAM 16, DVB QAM 32, DVB QAM 64, DVB QAM 128, DVB QAM 256
VSB VSB 8, VSB 16
APSK (amplitude/phase
shift keying)
APSK 16, APSK 32
EDGE
CPM (FM)
Custom IQ
Remote
Command
[:SENSe]:DDEMod:SEGMent1|…|6:MODulation BPSK | QPSK | OQPSK | SOQPSK |
PI4DQPSK | DQPSK | PSK8 | PI8DPSK8 | DPSK8 | QAM16 | QAM32 | QAM64 | QAM128
335 Vector Modulation Analyzer Mode User's &Programmer's Reference