Outline
The DEXIN NDS3402-C 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. It also provides RF 10MHz and 24V/2A DC coupling out. In addition, it is backwards-compatible with DVB-S (EN300421) modulating standard. This DVB-S2 modulator supports local and remote control through NMS software. For field scope, the device 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: 950~2150MHz
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Coupling output: 24V/2A DC optional
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Coupling output: 10MHz reference clock optional
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Full-size front panel LCD display and keyboard
Specifications
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MPEG-TS Input
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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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RF Output
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Frequency is continuously adjustable from 950 to 2150MHz
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Output Level attenuation is continuously adjustable from 0 to 31.5 dB; in step of 0.5 dB.
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Maximum Output level: 0dBm
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MER≥32dB
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Connector: N type, impedance 50Ω
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Coupling power supply: 24V/2A DC output
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Coupling reference clock: 10MHz reference clock output
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Channel coding
and modulation
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Outer coding
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DVB-S
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DVB-S2
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RS coding
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BCH coding
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Inner coding
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Convolutional
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LDPC coding
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Code Rate
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1/2,2/3,3/4,5/6,7/8
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1/2,3/5,2/3,3/4,4/5,5/6,8/9,9/10
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Constellation
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QPSK
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QPSK,8PSK
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Roll-off Factor
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0.2, 0.25, 0.35
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0.2, 0.25, 0.35
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Symbol Rate
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1~45MBauds
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1~30M@8PSK;
1~45 M@QPSK
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Miscellaneous
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Dimension
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44mm×482mm×410mm
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Environmental
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0~45℃(operation), -20~80℃ (storage)
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Power
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