Harmonic ProView PVR 6000 Series User Manual page 84

5
6
7
8
9
Available modulation options are:
•
•
•
•
•
R
OLL
The Roll off menu is used for setting the receiver's roll-off factor value
according to the roll-off factor of the transmitted signal.
The Roll-off factor is the factor that is used for the base-band shaping of the
transmitted signal. Set the Roll-Off factor in accordance with the transmitted
Roll-Off factor.
1
2
3
Available options for the Roll-off factor are:
•
•
•
P
ILOTS
In order to expedite carrier recovery, the standard allows two operating modes for
each modulation type: Pilot-less (i.e. no Pilot symbols are inserted) and Piloted,
where Pilot symbols are inserted to aid carrier synchronization. The Pilots menu
enables to choose between the two operating modss.
Page 4-14
DVBS2-N- 8PSK
DVBS2-N-16APSK
DVBS2-S-QPSK
DVBS2-S-8PSK
DVBS2-S-16APSK
DVBS-QPSK
DSNG-8PSK
DSNG-16QAM
DVBS2-N-QPSK
DVBS2-N-8PSK
-
OFF
Roll-off
35%
25%
20%
35%
25%
20%
Operation and Management
• DVBS2-N-16APSK
• DVBS2-S-QPSK
• DVBS2-S-8PSK
• DVBS2-S-16APSK
(Rev. 4.1/ SW v1.60/ December 2006)
User Manual