DTV System MPEG-2 QAM Modulator 8 ASI With Multiplexing Scrambling

GQ-3650DS
 
Multifunction QAM Modulator
 
GOSPELL GQ-3650DS can receive MPEG-2 transport streams from 8 ASI inputs and 2 E3/DS3 inputs (optional for GQ-3650E), and then multiplexing, scrambling and processing it with channel coding, finally output 4 channels of adjacent RF signals after QAM modulation, GQ-3650DS/GQ-3650E is our economical core product of digital cable TV head end solutions. Users can get these functions upon their system needs and budgets by purchasing the update package from the suppliers.
 
 
Main Features:

• Support 8 ASI inputs, support CBR and VBR
• Support ITU-T J.83A/B/C, output frequency range: 30 MHz ~ 860 MHz
• Expandable up to four RF modulating output (GQ-3650DS optional)
• Support two E3/DS3 inputs and two ES/DS3 loop outputs (GQ-3650E optional)
• Support PID filtering, pass-through, PCR auto-correction
• 4 adjacent frequency output with output-channel selection switch
• 88/204 self-adaptive packet length with real-time input data format display
• Extremly large buffer design, support both burst & uniform input streams, and also support re-uniforming of the input data, in order to improve the output efficiency
• Modulated transport streams can be either directly passed through, multiplexed or scrambled
• NIT mapping & forwarding up to 45 frequencies
• 8 groups of PID filtering and re-mapping
• Support various customizable PSI/SI table extraction, resolving and modification
• Support SI table information replacement and insertion
• Self-adaptive filter circuit design ensures outstanding out-of-band rejection
• Centralized Web, SNMP(GQ-3650DS) management and remote upgrade / maintenance
• Support monitoring of operation temperature and power supply status

 
For More Information
 
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