Keysight x-series Programmer's Reference

3 VMA Mode
3.1 Digital Demod Measurement
Parameter DVB-S2X 256-APSK
Code Rate 124/180 (31/45)
DVB-S2X 256-APSK
Code Rate 128/180 (32/45)
DVB-S2X 256-APSK
Code Rate 135/180 (3/4)
Info BW 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz 25 MHz
Symbol Rate 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz 10 MHz
Meas Filter Root Raised
Cosine
Root Raised
Cosine
Root Raised
Cosine
Root Raised
Cosine
Root Raised
Cosine
Root Raised
Cosine
Ref Filter Raised
Cosine
Raised
Cosine
Raised
Cosine
Raised
Cosine
Raised
Cosine
Raised
Cosine
Filter Alpha 0.35 0.35 0.35 0.35 0.35 0.35
Points /
Symbol
5 5 5 5 5 5
Meas Interval 90 symbols 180 symbols 90 symbols 180 symbols 90 symbols 180 symbols
Search Length 3.3552 msec 3.3552 msec 3.3552 msec 3.3552 msec 3.3552 msec 3.3552 msec
Burst Search Off NA Off NA Off NA
Sync Search On NA On NA On NA
Parameter DVB-S2X 256-APSK
Code Rate 20/30 (2/3)
DVB-S2X 256-APSK
Code Rate 22/30 (11/15)
Segments Segment1 Segment2 Segment1 Segment2
Modulation Format QPSK (Custom IQ) 64-APSK (Custom IQ) QPSK (Custom IQ) 64-APSK (Custom IQ)
Info BW 25 MHz 25 MHz 25 MHz 25 MHz
Symbol Rate 10 MHz 10 MHz 10 MHz 10 MHz
Meas Filter Root Raised Cosine Root Raised Cosine Root Raised Cosine Root Raised Cosine
Ref Filter Raised Cosine Raised Cosine Raised Cosine Raised Cosine
Filter Alpha 0.35 0.35 0.35 0.35
Points / Symbol 5 5 5 5
Meas Interval 90 symbols 180 symbols 90 symbols 180 symbols
Search Length 3.3552 msec 3.3552 msec 3.3552 msec 3.3552 msec
Burst Search Off NA Off NA
Sync Search On NA On NA
Preset To Standard – Radio
Parameter APCO-25
C4FM/CQPSK Combined
APCO-25
HCPM
APCO-25
HDQPSK
APCO-25
CQPSK EVM
Modulation Format 4-FSK CPM (FM) 4-FSK pi/4 DQPSK
Info BW 40 kHz 25 kHz 25 kHz 40 kHz
Symbol Rate 4.8 kHz 6 kHz 6 kHz 4.8 kHz
Meas Filter Rectangular None Rectangular None
Vector Modulation Analyzer Mode User's &Programmer's Reference 320

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)