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Outline
The DEXIN NDS3402A DVB-S2 modulator is a high performance modulator developed according to DVB-S2 (EN302307) standard which is the standard of second generation of the European broadband satellite telecommunication. It adopts advanced framing structure, channel coding and modulation technology, increasing over 50% transmission ability more than DVB-S modulator under the same transmission condition and also providing a more powerful receiving ability in the same spectral efficiency. In addition, it is backwards-compatible with DVB-S (EN300421) modulating standard. This DVB-S2 modulator supports local and remote control through NMS software. The NDS3402A DVB-S2 modulator can be used for Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications.
Features
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Fully complying with DVB-S2(EN302307) standard
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Backwards-compatible with DVB-S (EN300421) modulating standard
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Two ASI inputs supporting hot backup
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Supporting local and remote control
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Output level attenuation
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10MHz outer reference clock input
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Output frequency range: 50~100MHz
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Full-size front panel LCD display and keyboard
Specifications
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MPEG-TS Input |
Supporting both packet and byte mode TS input |
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Supporting 188/204Byte transmission stream packet |
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Two ASI inputs, supporting hot backup |
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ASI input connector: BNC, impedance 75Ω |
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IF Output |
Frequency is continuously adjustable from 50 to 100MHz |
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Output Level attenuation is continuously adjustable from 0 to 31 dB; in step of 1 dB. |
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Maximum Output level: 0dBm |
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MER≥42dB |
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Connector: N type, impedance 50Ω |
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Channel coding and modulation |
Outer coding |
DVB-S |
DVB-S2 |
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RS coding |
BCH coding |
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Inner coding |
Convolutional |
LDPC coding |
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Code Rate |
1/2,2/3,3/4,5/6,7/8 |
1/2,3/5,2/3,3/4,4/5,5/6,8/9,9/10 |
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Constellation |
QPSK |
QPSK,8PSK |
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Roll-off Factor |
0.2, 0.25, 0.35 |
0.2, 0.25, 0.35 |
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Symbol Rate |
1~45MBauds |
1~30M@8PSK; 1~45 M@QPSK |
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Miscellaneous |
Dimension |
44mm×482mm×410mm |
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Environmental |
0~45℃(operation), -20~80℃ (storage) |
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Power |
100-240VAC±10%,50Hz-60Hz |
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