Televes MUX DVBS2-COFDM CI, Руководство пользователя

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1. Technical specifications
1.1. MUX DVBS2-QAM CI Ref. 564101, MUX DVBS2-COFDM CI Ref. 564201
Satellite
demodulator
Input frequency MHz 950 - 2150 Through losses (typ.) dB < 1,5
Symbol rate
DVB-S2
Mbaud
10 -30
Modulation
DVB-S2 QPSK, 8PSK
DVB-S 2 - 42,5 DVB-S QPSK
Frequency steps MHz 1 FEC inner code LDPC 9/10, 8/9, 5/6, 4/5, 3/4, 2/3, 3/5, 1/2, 1/4,
1/3, 2/5
IN/OUT connectors tipo “F” female FEC outer code Bose-Chaudhuri-Hocquenghem
Input impedance ohm 75 Roll-off factor % 20, 25, 35
LNB powering Vdc/KHz 13-17- OFF / 22KHz (ON-OFF) Return losses (min.) dB 10
QAM modulator
(Ref. 564101)
Modulation format QAM 16, 32, 64, 128, 256 Scrambling DVB ET300429
Symbol rate Mbaud 6,9 Interleaving DVB ET300429
Roll-off factor % 15 Bandwidth (max.) MHz 8,3
Block code Reed Solomon (188, 204) Spectral inversion (selectable) Normal / Inverted
OFDM
modulator
(Ref. 564201)
Modulation format QPSK, 16QAM, 64QAM Scrambling DVB ET300744
Guard interval 1/4, 1/8, 1/16, 1/32 Interleaving DVB ET300744
FEC 1/2, 2/3, 3/4, 5/6, 7/8 Cell_id Selectable
Bandwidth MHz 7, 8 Spectral inversion (selectable) Normal / Inverted
RF output
Output frequency (selectable) MHz 46 - 862 Through losses (typ.) dB < 1,5
Frequency
steps
564101
KHz
250
Return losses (typ.) dB > 12
564201 166 - 125 (selectable)
Max. output level dBµV 80 ±5 IN/OUT connectors tipo “F” female
Attenuation (selectable) dB > 15 Output impedance ohm 75