简体中文
|
English
|
Pусский
|
Español
|
Français
Contact Us
yingyingbai131
info@dsdvb.com
86-28-85550524
NDS3401D QPSK Modulator
Outline
The DEXIN NDS3401D QPSK modulator is developed according to DVB-S (EN300421) QPSK standard. It has powerful spectral efficiency, advanced anti-jamming and competitive price-performance ratio. To guarantee the high transmission performance, this QPSK modulator adopts the disposal of energy diffusing, RS coding, convolution interleaving and pre-modulated baseband shaping. To sum up, all the approaches make this NDS3401D QPSK modulator widely used in Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications.
Features
* Fully complying with DVB-S (EN300421) standard
* Support 1 ASI input
* QPSK Constellations
* Output frequency range: 950~2150MHz, 10KHz stepping
* Support local and remote control with Web-based NMS
Principle Chart
Specifications
|
ASI Input |
1×ASI input, BNC interface |
|
|
RF Output
|
RF Range |
950 ~ 2150 MHz, 10KHz stepping |
|
Output Level |
-10.0 dBm~-41.5 dBm,0.5dBm Stepping |
|
|
MER |
≥26dB |
|
|
Connector |
N type, Impedance 50Ω |
|
|
Outer coding |
RS Coding |
|
|
Inner coding |
Convolution |
|
|
Constellation |
QPSK |
|
|
FEC/Convolution Rate |
1/2,2/3, 3/4, 5/6, 7/8 |
|
|
Roll-off Factor |
0.35 |
|
|
Symbol Rate |
0.05~45Msps |
|
|
System |
Web-based NMS |
|
|
Language: English |
||
|
Ethernet software upgrade |
||
|
Miscellaneous |
Dimension |
482mm×245mm×44mm (W*D*H) |
|
Temperature |
0~45℃(operation), -20~80℃ (storage) |
|
|
Power |
AC 100-240V, 50Hz-60Hz 2A |
|
