Twin QPSK to QAM trans modulator

GQ-3693 Twin QPSK to QAM trans modulator is a headend equipment with the professional broadcasting quality according to DVB standard . Its main function is to directly convert twin signals which could be QPSK modulated from satellite or other program source to twin QAM signals and then transmit via HFC or MMDS network. It doesn't need decompression, compression, QAM modulation, but directly modulate data stream demodulated to QAM signal sending to HFC or MMDS network. Therefore, it carries out SDTV/HDTV services and so on, providing many digital TV programs and data broadcasting programs with low-cost in SMATV.

Features:

  Up to DVB standard, DVB/MPEG-2 compatible  

  SCPC/MCPC compatible,  receiving  unencrypted digital satellite programs at home   and  abroad.Viterbi auto-identify

  Low gateway Integration tuner, reliable and good performance

  188/204 packet auto identify

  Work at modes: QPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM

  Output data bit rate:256Mbps

  Output signal BW : 1.15-8.05MHz(Fall 0.15)

  Output data symbol ratio: 17Mbaud/s

  IF output frequency range:  GQ-3691, 35.25/36/36.15/44MHz

                                          GQ-3693, 36 MHz36+68MHz 

  IF output level: 98+/- 1dBuV

  RF frequency range: 48-860MHz(subsection offer)

  RF output level: 100dBuV, 115dBuV(stepping optional)

  GQ-3693 double input and double RF output

  QPSK loop output interface

  Error alarming

  RF testing output interface

  LCD display

  Network controlled interfaceNMS optional

  Power off memory