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 |
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 |
