JXDH-6302 QAM Modulator, is the main equipment CATV digital head-end, receiving DVB transport streams which come from coder, multiplexer, DVB gateway, scrambler, video server etc. It does signal processing like RS coding, convolution interleaving and QAM modulating, providing IF/RF output.
Features
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Comply with DVB standard signal channel coding
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Support full range variable data rate, bandwidth and QAM
mode Data stuffing
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super buffer (optional), anti-burst code stream
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PID filter, re-reflection, PSI,SI information synchronal
updating possible
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Automatically code stream stuffing and empty pocket deleting
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Code stream real-time monitoring, empty pocket filtering
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Support NIT table modifying
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real-time code stream monitoring
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PCR adjusting, output symbol rate variable: 1~7Ms/s
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Fixed or agile channel output
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Providing ASI and Ds3 input port and output port (optional)
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Providing RF output monitoring port（-20dB）
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Local or Remote administration possible
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LCD display, flexible in operating
l High reliability design, stable in running
Specifications
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Modulating mode |
16, 32, 64, 128, 256 QAM |
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Symbol rate |
3~7Mbaud/s |
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Correction coding |
RS Coding188/204 |
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Input data rate |
1.5~51Mbps |
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Channel data rate |
20~56Mbps |
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MBR |
≥33dB |
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BER |
≤1′10-8 |
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Input interface |
ASI |
DVB standard |
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SPI |
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Output |
IF Frequency
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36/36.15/36.65/44/70MHz (Optional) |
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RF Frequency |
47~870MHz |
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Output Level |
≥115dBμV |
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Output Level adjustable |
100dBmV |
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Impedance |
75Ω |
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Output return loss |
≥12dB |
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Miscellaneous |
Dimension |
44mmx 482mmx |
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Temperature |
0~ |
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Power |
220VAC±10%, 50Hz, 25W |
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