Модуль X-QAM-twin 5 S2 - Двухканалный трансмодулятор DVB-S/S2 QPSK/8PSKX-QAM-twin 5 S2, Кишинев

DD® Двухканальный трансмодулятор DVB-S/S2 QPSK/8PSK→QAM (47-862). Bозможность удаления ТВ сервисов из выходного потока для снижения output bit/symbol rate. Входы: 1xQPSK/8PSK Выходы: 1xQAM (16, 32, 64, 128, 256) 47-862 МГц, MER>40 dB. Возможна трансмодуляция DVB-S2/HDTV в QAM256. Обработка MPEG-потока: data rate adjustment, PCR-correction, SERVICE-filtering (удаление нежелательных сервисов). NIT процессинг через X-BC3. Barker channel.
DVB-S(2) demodulator
Input frequency range
[MHz]
950- 2150
Input level
[dBµV]
50- 80
SAT IF input
[©]
F jack, 75
Input symbol rate
[MS/s]
maximum 30,0
DVB-S viterbi
1/2;2/3;3/4;5/6;6/7;7/8
DVB-S2 LDPC
1/4;1/3;2/5;1/2;3/5;2/3;3/4;4/5;5/6;8/9;9/10
DVB-S2 roll-off-factors
0,20; 0,25; 0,35
DVB-S2 modulation
QPSK, 8PSK
QAM modulator
Modulation
16-, 32-, 64-, 128-, 256-QAM
Signal processing
according DVB standard
Spectrum shape cos-roll-off
[%]
15
FEC
Reed-Solomon (204,188)-Code
Data rate adjust
•
PCR correction
•
NIT handling
•
PID filter
•
Output symbol rate
[MSym]
3,45 - 6,9
Bandwidth
[MHz]
4 - 8 depending on symbol rate
Brutto data rate
[MBit/s]
maximum 55,2
RF output
Connections
[©]
IEC jack, 75
Freqency range
[MHz]
47-862(C2-C69) 1-MHz-steps adjustable
Output level
[dBµV]
80 … 90, adjustable
MER (Equalizer, 64 QAM)
[dB]
typ. 40
Spurious freq. distance 40-862MHz
[dB]
> 60 discrete interferences
> 57 noise interferences
Spurious freq. distance>950MHz
[dB]
> 20 relating to 100 dBµV system level and 90 dBµV operating level
Common data
Power consumption
[W]
15,5
Ambient temperature
[°C]
0... +50