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DVB configuration and settings
R&S
®
SMW-K52/-K116
33
User Manual 1175.6778.02 ─ 19
"Code Type > Medium" requires "VL-SNR Mode > On".
In VL-SNR mode, the required Walsh-Hadamard sequence is selected automatically as
function of the parameters "MODCOD" and "Code Type".
Remote command:
CCM mode:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:CTYPe
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:CTYPe
MODCOD
Selects the "MODCOD" that is the modulation scheme and code rate.
In VL-SNR mode ("VL-SNR > On"), the required Walsh-Hadamard sequence is
selected automatically as function of the parameters "MODCOD" and "Code Type".
Remote command:
CCM mode:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MCOD
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:MCOD
PLS Code
Indicates the PLS code for the selected
Remote command:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:PCOD?
SF
Requires "DVB Standard > DVB-S2X", "VL-SNR Mode > On" and "Code Type >
Short".
Sets the spreading factor. Per default, the VL-SNR mode uses "Modulation > pi/2
BPSK" and "SF = 2". The spreading factor of 2 means that encoded bits are repeated
twice before they are mapped into the constellation.
Remote command:
CCM mode:
[:SOURce<hw>]:BB:DVB:DVBX:SFACtor
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:SFACtor?
Auto DFL
Defines if the "DFL" is set automatically or manually.
Remote command:
CCM mode:
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:BHConfig:ADFL:STATe
[:SOURce<hw>]:BB:DVB:DVBS|DVBX:MTAB:SET<st>:ADFL[:
DFL
If "Auto DFL > Off", sets the data field length (DFL).
MODCOD table configuration settings