DVB-T Modulator

• Categories:
• Digital Modulator

• Brand:
• GOSPELL

• Comments:
• GQ-3730 DVB-T COFDM  Modulator is a headend equipment with the professional broadcasting quality according to DVB standa

Detailed Info

GQ-3730 DVB-T COFDM Modulator is a headend equipment with the professional broadcasting quality according to DVB standard . Its main function is to modulate TS stream by COFDM and then transmit the stream via HFC or MMDS. The modulator converts input data streams up to DVB-T standard into Radio Frequency (RF) signals. It supports FEC and RS encoding, EN300744 and 6/7/8 band width. The signal subject 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-3730 QAM Modulator is used in broad band digital application system such as HFC network, MMDS or 8GHz microwave-systems. It not only transmits digital signals effectively, but also sends other digital value-added applications to thousands of families. GQ-3730 has the function of remote supervision and control.

Fetures:

• 
  
  Up to EN300744, support 6MHz/7MHz/8MHz band width
• 
  
  FEC up to DVB-T Work in mode QPSK, 16QAM, 64QAM
• 
  
  Support working mode of 2K/8K carrier
• 
  
  Support 1/2, 2/3, 3/4, 5/6 and 7/8 FEC encoding
• 
  
  Support protect- alteration -time 1/4,1/8,1/16,1/32
• 
  
  Input interfaceASI and SPIE3/DS3 optional, loop output interface Corresponding to these.
• 
  
  Output data bit rate: 1.53-1.67Mbps
• 
  
  Output signal BW6/7/8MHz
• 
  
  RF range: 48-860MHz
• 
  
  Output level: 100dBuV-115dBuV(stepping)
• 
  
  188 and 204 packet auto-identify, displaying input data format real time.
• 
  
  Large cache, ASI interface support input burst and average bit stream, reforming bit stream average in order to promote the output bit stream efficiency.
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  NIT mapping and sending, support 44 NIT mapping
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  10 groups PID filtering and re-mapping
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  Various PSI/SI information tables pick-up, parse and modification (customization available).
• 
  
  SI information replacement and insertion
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  Input data null packet filtering and output data stuffing
• 
  
  PCR correction function can correct various input data, respectively and accurately
• 
  
  Show and inspect system input bit rate and valid bit rate real-timee
• 
  
  -20dB RF testing interface with IF output
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  Outstanding self-adapting filtering circuit designs to maximal reliability and availability.
• 
  
  Error alarming
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  LCD display
• 
  
  Network interface introduces remote maintenance, supervision and software upgrade
• 
  
  Power off memory

KeyWords:

CATV Modulator ,RF Modulator ,DVB Modulator ,DTV Modulator ,DTV COFDM Modulator ,DTV DVB T Modulator

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