Outline
The Xielide XLD3401D 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
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ASI Input |
1×ASI input, BNC interface |
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RF Output
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RF Range |
950 ~ 2150 MHz, 10KHz stepping |
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Output Level |
-10.0 dBm~-41.5 dBm,0.5dBm Stepping |
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MER |
≥26dB |
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Connector |
N type, Impedance 50Ω |
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Outer coding |
RS Coding |
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Inner coding |
Convolution |
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Constellation |
QPSK |
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FEC/Convolution Rate |
1/2,2/3, 3/4, 5/6, 7/8 |
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Roll-off Factor |
0.35 |
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Symbol Rate |
0.05~45Msps |
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System |
Web-based NMS |
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Language: English |
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Ethernet software upgrade |
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Miscellaneous |
Dimension |
482mm×245mm×44mm (W*D*H) |
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Temperature |
0~45℃(operation), -20~80℃ (storage) |
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Power |
AC 100-240V, 50Hz-60Hz 2A |
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