QPSK Modulator

GQ-3710 QPSK Modulator 

GQ-3710 QPSK Modulator is a headend equipment with the professional broadcasting quality according to DVB standard. Its main function is to modulate by QPSK TS stream and then transmit via HFC or MMDS. The modulator converts input data streams up to DVB-S standard into Radio Frequency (RF) signals and FEC. The signal according to DVB standard includes MPEG-2 digital TV, digital broadcast, VOD, and other digital signals such as video conference, Internet and IP phone, which are up to DVB contribution protocol.

GQ-3710 QAM Modulator is used in broad band digital application system such as HFC network, MMDS or 8GHz microwave-systems. It not only transmit digital signals effectively, but also sends other digital value added services to thousands of families. GQ-3710 has the function of remote supervision and control.

 Features:

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            FEC coding up to DVB-S
  
  


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            188 and 204 packet auto-identify, displaying input data format real time.
  
  


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            support burst bit stream input
  
  


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            Central frequency range: 250MHz~2150MHz (subsection Optional, stepping 50KHz min)
  
  


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            support 44 NIT mapping and sending
  
  


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            PID filtering and re-mapping
  
  


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            PSI/SI information tables pick-up, parse, modification and insertion
  
  


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            PCR correction
  
  


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            Show and inspect system input bit rate and valid bit rate real-time
  
  


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            -20dB testing interface with RF output
  
  


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            Network interface introduces remote maintenance, supervision and software upgrade
  
  


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            Power off memory