Field strength meters for TV, Cable and Satellite
Optical fibre equipment
CompactMax: DVB-S/S2 to Terrestrial TV transmodulators
Test and measurement
|PLC (PowerLine Communications)||TV pattern generators||Educational trainers|
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.
RANGER Neo Lite field strength meters are compatible with this type of signals. The PLS sequence number can be entered under F2 as shown in the above right picture.