DVB-S2 Configuration and Settings
R&S
®
SMCVB-K168
38
User Manual 1179.1064.02 ─ 03
Remote command:
[:SOURce<hw>]:BB:DVBS2[:SPECial]:SETTings[:STATe]
PL Gold Code Index (n)
Requires "PL Scrambling Sequence ID = 0".
Defines the scrambling code number (n) of the gold code used for physical layer (PL)
scrambling. This number in turn defines the scrambling sequence within a PL frame.
If "PL Scrambling Sequence ID
≠
0", the "PL Gold Code Index (n)" is controlled by the
"PL Scrambling Sequence ID" and is set internally, but not displayed.
For broadcast applications, set this parameter to "0".
Remote command:
[:SOURce<hw>]:BB:DVBS2[:SPECial]:GOLDcode
PL Scrambling Sequence ID
For normal applications, set this parameter to
0
.
If
≠
0
is set, the corresponding line of a hidden file is evaluated. PL header scrambling
is performed, and the "PL Gold Code Index (n)" is set using the dedicated values of
this line. The results are not displayed and are not readable. Also set the PL scram-
bling sequence ID in the DVB-S2 receiver.
The maximum value corresponds to the number of active lines in a hidden file, if it
exists. In any case, "0" to "16" is possible.
Remote command:
[:SOURce<hw>]:BB:DVBS2[:SPECial]:SCRamble:SEQuence
PL Scrambler
For test purposes, you can disable the PL scrambler. In normal operation it is enabled.
"On"
Normal operation.
"Off"
For test purposes, you can disable the PL scrambler.
Remote command:
[:SOURce<hw>]:BB:DVBS2[:SPECial]:SCRamble:STATe
PL Dataslices PRBS
Enable for test purposes. PRBS can be inserted into the data slices. The PRBS trans-
mitted in the data slices is continuous, so that a BER measurement on decoded data
slices can be performed.
"On"
For test purposes,
can be inserted into the data slices. To
select the PRBS, see
The PRBS transmitted in the data slices is continuous, so that a BER
measurement on decoded data slices can be performed.
"On"
Normal operation.
Remote command:
[:SOURce<hw>]:BB:DVBS2[:SPECial]:DSLPrbs:[STATe]
Special Settings