Outline
The DEXIN NDS3402 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 NDS3402 DVB-S2 modulator can be used for Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications.
Features
-
Fully complying with DVB-S2(EN302307) standard
-
Backwards-compatible with DVB-S (EN300421) modulating standard
-
Two ASI inputs supporting hot backup
-
Supporting local and remote control
-
Output level attenuation
-
10MHz outer reference clock input
-
Output frequency range: 950~2150MHz
-
Full-size front panel LCD display and keyboard
Specifications
MPEG-TS Input
|
Supporting both packet and byte mode TS input
|
||
Supporting 188/204Byte transmission stream packet
|
|||
Two ASI inputs, supporting hot backup
|
|||
ASI input connector: BNC, impedance 75Ω
|
|||
RF Output
|
Frequency is continuously adjustable from 950 to 2150MHz
|
||
Output Level attenuation is continuously adjustable from 0 to 31.5 dB; in step of 0.5 dB.
|
|||
Maximum Output level: 0dBm
|
|||
MER≥32dB
|
|||
Connector: N type, impedance 50Ω
|
|||
Channel coding
and modulation
|
Outer coding
|
DVB-S
|
DVB-S2
|
RS coding
|
BCH coding
|
||
Inner coding
|
Convolutional
|
LDPC coding
|
|
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
|
|
Constellation
|
QPSK
|
QPSK,8PSK
|
|
Roll-off Factor
|
0.2, 0.25, 0.35
|
0.2, 0.25, 0.35
|
|
Symbol Rate
|
1~45MBauds
|
1~30M@8PSK;
1~45 M@QPSK
|
|
Miscellaneous
|
Dimension
|
44mm×482mm×410mm
|
|
Environmental
|
0~45℃(operation), -20~80℃ (storage)
|
||
Power
|
100-240VAC±10%,50Hz-60Hz
|