Paradise Datacom Vision Series Installation And Operating Handbook page 41

After entering the data rate, if the ENTER key is pressed again then the
symbol rate is displayed (but cannot be altered).
Edit/Tx/FEC-Mod/Info rate/Symbol rate:
Factory default:
Description: Sets the symbol rate rate for the Tx path.
Note that it is possible to choose whether to maintain data rate and vary
symbol rate or vice versa (see Edit-Tx-FEC-Mod-Maintain Rate Screen)
when changing modulation and coding settings. The Symbol rate screen
above is only available w hen the Maintained rate is set to Symbol rate.
After entering the symbol rate, if the ENTER key is pressed again then
the data rate is displayed (but cannot be altered).
Edit-Tx-FEC-Mod-Scrambler Screen
Edit/Tx/FEC-Mod/Scrambler seed:
Factory default:
This sets the DVB-S2 Physical Layer scrambler signature. This is used
Description:
in scrambling the contents of the physical layer frames (other than the
header) for improved energy dispersal, reducing interference betw een
different signals. Scrambling sequences are constructed by combining
the output of tw o generator polynomials into a complex sequence know n
as a 'Gold' code. Setting this to 0 avoids both having to set a value at the
receiver and any unw anted synchronization delay.
Vision Series Installation and Operating Handbook
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