Dolby Laboratories Digital-Satellite-Receiver - Manual (Page 61)

These new services are constantly being developed and
improved by the providers. To utilize the services, it may
occasionally be necessary to update the software of the digi-
tal receiver.
Transponder:
Located on the satellite, serves to process one or several
programmes. It receives the signal from the ground station,
amplifies it, and broadcasts the signal back to earth.
Universal LNC:
Used for reception of the frequency ranges FFS (10,70 -
11,70 GHz), BBS (11,70 - 12,50 GHz) and FFS High Band
(12,50 - 12,75 GHz). The entire range is divided into two
bands:
Low Band: 10,70 - 11,80 GHz; LOF 9750 MHz
High Band 11,70 - 12,75 GHz ; LOF 10600 MHz
Operating voltage:
LNCs are supplied with power via the coaxial cable. To this
end, the receiver provides a voltage of 14 or 18 Volts
Intermediate Frequency:
The frequency range broadcast from the satellite cannot be
transmitted via cable. It is therefore converted by the LNC to
an intermediate frequency range of 950 to 2150 MHz. This
allows the signal to be transmitted, and processed in the digi-
tal receiver.
1. IF = 1st Intermediate Frequency
11 Technical Data
DBS Tuner:
Input frequency range
950 .... 2150 MHz
Input level range - 65 dBm ... - 25 dBm
DBS Tuner input F - socket
Input/output impedance 75 Ohms
Output for 1.IF 950 ... 2150 MHz (loop through)
AFC capture range +/- 3 MHz
Demodulation Shaped QPSK
Symbol rate 1 ... 45 Mbaud/s, SCPC/ MCPC
FEC Viterbi and Reed-Solomon
Viterbi rates 1/2, 2/3, 3/4, 5/6, 7/8, automatic
adaptation
Roll-off Factor 35 %
Demultiplexing:
in accord. with ISO 13818-1
Card reader:*
Type
1 Slot card reader for integrated
CA system
Common Interface:*
Type
1 Common Interface slot for CI
modules
Power consumption max. 0,3A/5V
Copy protection:*
Macrovision 7.1
61
* Only for receivers equipped with
this feature
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