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Specifications
meet the standard of DVB-C path-way encodesupport all-range changable symbol rates and QAM
more reliable
Description
QAM modulator
Brief introduction
JD-QAM-1100 modulator is self-designed QAM digital modulator with high performance, shall receive MPTS and SPTS from encoders, multiplexer, DVB gateway, scrambler, video server, etc, to process modulating and channel error-correction encoding. It shall supply with variable frequency to digital TV channel or supply with RF (fixed or frequency agility) output.
It is with the characteristics of flexible configuration, high-performance indications and stability, and shall be applied to the head end system for large and medium size cable digital TV; is also high performance cost ratio product, which shall realize to increase the contents of digital TV channels on the basis of current analogue/digital cable TV head end system (e.g. medium, small size cable station, enterprises and public institutions station, hotel, community, etc.)
Features
l In accordance with DVB-C standard channel coding
l Support whole range of variable signal rate and QAM star level
l Support PID filtering/re-mapping
l Support PSI/SI information synchronization update
l Support NIT editing
l Automatically code stream filling and intelligent empty pack deleted
l With the function of PCR high-precision correction
l Code rate input form including ASI/DS3 (optional)
l RF are fixable or frequency agility output
l Supply with DVB ASI/SPI input interface and ASI looping out interface
l Front panel LCD shows key control parameter and controls operation, with Chinese and English menu selection
l LED state display and warning indicator
l Support 10M/100M Ethernet control interface, and upgrade on line through network
l Local/long-distance control and central management are available through network management system
l 19” 1 U rack
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