Promax PROWATCH Neo + Manual page 69

4.3.2 F2: Signal Parameters
Access by the
displays the parameters for signal transmission.
Signal Type
►
It displays the selected standard. It allows selecting another standard in the
same band (terrestrial or satellite):
Operation:
1 Place over the Signal Type option and press Enter.
2 It displays a menu with transmission standards.
3 Move the cursor up / down to select a standard.
4 Press Enter to select the standard or any function key to exit without
selecting.
View Advanced Parameters
►
It shows the TPS parameters (Transmission Parameters Signalling) for the
locked signal according to the modulation standard. This option is available only
when these parameters are detected. The remaining transmission parameters
are detected demodulating the locked signal.
•In case of a DVB-S/S2 signal, the symbol-rate parameter can be set
manually.
•In case of a Generic signal, the bandwidth of the channel can be set
manually.
In case of a DVB-S2 signal, there will be some special settings for this type of
signal. They are:
Physical Layer Scrambling or PLS is used in DVB-S2 as a way to improve

data integrity. A number called the "scrambling sequence index" is used
by the modulator as a master key to generate the uplink signal. This same
number must be known by the receiver so that demodulation is possible.
Most satellite transponders use PLS 0 as a default value but there are

some transponders that use other values.
If it is a multistream signal (MIS), it will appear an option that enables

filtering by the input stream identifier (ISI) and to select the stream to
March 2025
, function key. It allows selecting the standard transmission and
61 Chapter 4: RF SIGNAL TUNING