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DVB configuration and settings
R&S
®
SMW-K52/-K116
30
User Manual 1175.6778.02 ─ 19
Example:
"Modulation = (16 + 16 + 16 + 16) APSK" is an APSK modulation with 64 constellation
points, distributed on 4 concentric rings with 16 constellation point each.
The radius of each ring is defined as function of the selected code rate.
Remote command:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MODulation
Pilot State ← CCM settings
Activates/deactivates the pilot.
Remote command:
CCM mode:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:PSTate[:STATe]
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:PSTate[:
ACM settings
The following settings are available in "CCM/ACM > ACM" mode:
Bit Interleaver ← ACM settings
If enabled, the output of the LDPC encoder is bit interleaved using a block interleaver.
Remote command:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:BINTerleaver[:STATe]
MODCOD Table Config ← ACM settings
Opens the "MODCOD Table Configuration" dialog, where you can configure a set of
different PLSCODEs. The PLSCODEs are processed cyclically.
See
Chapter 3.5, "MODCOD table configuration settings"
Uncoded Mode
Activates raw bit stream streaming.
If enabled, all parameters relevant for coding as well as header parameters are dis-
abled.
Remote command:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:UCMode[:STATe]
PL Scrambler
Activates physical layer scrambling.
DVB-S2/DVB-S2X System settings