Detailed Product Description

GQ-3682  is a headend and repeat equipment with the professional broadcasting quality according to DVB standard . Its main function is decoding signals modulated by COFDM up to DVB-T to TS stream and remultiplexing with other ASI signasl and then modulating digital TV signal up to QAM standard transmitted via HFC or MMDS. The modulator converts input data streams up to DVB-T standard into Radio Frequency (RF) signals. It could extend ground broadcasting transport network and converter interface in the headend. It not only transmit digital signals effectively, but also sends other digital value added services to thousands of families. GQ-3682 has the function of remote supervision and control.

Features

•         Two Channels input interface( ASI and COFDM), with ASI and COFDM loop output.
•         -20dB RF testing interface with IF output
•         IF and RF output optional
•         ASI input data bit rate:216Mbps(max, per channel)
•         Remultiplex 2 channels TS
•         PID filtering and reset, users add and delete programs at will, auto-mapping PID of program selected. Support user-defined PID and input bypass.
•         Support ITU-T J.83A and B
•         FEC up to DVB-C
•         Work in mode 16QAM32QAM64QAM128QAM256QAM
•         Input interfaceASIRFCOFDM tuner
•         Input RFCOFDM frequency170MHz-860MHz
•         Input RF BW6MHz7MHz8MHz
•         Inside-feedback electricityRF input supply DC+9V or DC+12V
•         Input data(ASI interface) bit rate:1.551.6Mbps
•         Output data bit rate:256Mbps
•         Output signals BW1.158.05MHz(the Fall is 0.15)
•         Output data symbol ratio17Mbaud/s
•         Output RF frequency48860MHz
•         Output level100dBuV115dBuV(stepping available)
•         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.
•         NIT mapping and sending, support 44 NIT mapping
•         PID filtering and re-mapping
•         Various PSI/SI information tables pick-up, parse and modification (customization available).
•         SI information replacement and insertion
•         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-time
•         -20dB RF testing interface with IF output
•         Outstanding self-adapting filtering circuit designs to maximal reliability and availability.
•         Error alarming
•         LCD display
•         Network interface introduces remote maintenance, supervision and software upgrade
•         Power off memory
•         Network interface introduces remote maintenance, supervision and software upgrade