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NDS3902M DVB-T TransModulator
Key Features
* *DVB-S/S2/S2X Tuner input with 2 CAM slots
* 2 groups multiplexing +2 groups DVB-T modulating
* Support accurate PCR adjusting, PID Remapping, PSI/SI rebuilding and editing, A/V PID filtering
* Web-based NMS management
Principle Chart
Tech Specifications
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Input |
2 DVB-S/S2/S2X Tuners |
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Tuner Section |
DVB-S/S2/S2X Tuner |
DVB-S |
Input Frequency |
950~2150MHz |
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Symbol rate |
0.5~45Msps |
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Signal Strength |
- 65- -25dBm |
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FEC |
1/2, 2/3, 3/4, 5/6, 7/8 |
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Constellation |
QPSK |
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Max input bitrate |
≤129 Mbps |
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DVB-S2 |
Input Frequency |
950~2150MHz |
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Symbol rate |
QPSK/8PSK /16APSK: 0.5~45 Msps 32APSK: 0.5~40Msps; |
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FEC |
QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10 32APSK: 3/4, 4/5, 5/6, 8/9, 9/10 |
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| Constellation |
QPSK, 8PSK, 16APSK, 32APSK |
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Max input bitrate |
≤129 Mbps |
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DVB-S2X |
Input Frequency |
950~2150MHz |
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Symbol rate |
QPSK/8PSK /16APSK: 0.5~45 Msps 8APSK: 0.5~40Msps 32APSK: 0.5~40Msps |
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FEC |
QPSK: 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10, 13/45, 9/20, 11/20 8PSK: 3/5, 2/3, 3/4, 5/6, 8/9, 9/10 8APSK: 5/9-L, 26/45-L 16APSK: 2/3, 3/4, 4/5, 5/6, 8/9, 9/10, 1/2-L, 8/15-L, 5/9-L, 26/45, 3/5, 3/5-L, 28/45, 23/36, 2/3-L, 25/36, 13/18, 7/9, 77/90 32APSK: 3/4, 4/5, 5/6, 8/9, 2/3-L, 32/45, 11/15, 7/9 |
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Constellation |
QPSK, 8PSK, 8APSK, 16APSK, 32APSK |
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Max input bitrate |
≤129 Mbps |
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Descrambling |
CAM/CI |
2 sets |
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Multiplexing |
Maximum PID Remapping |
256 per input channel |
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Function |
A/V PID filtering |
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PID Remapping |
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Accurate PCR adjusting |
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Generate PSI/SI table automatically |
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Modulation |
DVB-T |
Standard |
EN300744 |
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FFT mode |
2K |
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Bandwidth |
6M, 7M, 8M |
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Constellation |
QPSK, 16QAM, 64QAM |
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Guard Interval |
1/4, 1/8, 1/16, 1/32 |
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Code Rate |
1/2, 2/3, 3/4, 5/6, 7/8 |
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MER |
≥42 dB |
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RF frequency |
50~960MHz, 1KHz step |
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RF out |
2*DVB-T non-adjacent carriers combined output |
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RF output level |
-28~ -3 dBm (79~104 dbµV), 0.1db step |
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System |
Web-based NMS support |
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Ethernet software upgrading |
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General |
Temperature |
0~45℃(Operation) ; -20~80℃(Storage) |
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Power |
AC 100V±1050/60Hz; AC 220V±10%, 50/60HZ |
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