IP-QAM Modulator GQ-3660B is the professional broadcast grade device dedicated to three-network convergence platform in the high speed IP-based head-end series. It adopts leading technology of 4-adjecent-channel modulation and 100% complies with DVB-C standard.
GQ-3660B's FPGA de-capsulates the data from Gigabit Ethernet (GbE) input and sends out TS, after DVB standardized QAM modulation, such as interlacing & RS coding, as well as combining, filtering and gain control, and finally output RF QAM signals, which can be transmitted in the HFC network of CATV.

Main Features:

·Support ITU-T J.83 Annex A & B
·Able to work in 16QAM/32QAM/64QAM/128QAM/256QAM Mode
·Single device with up to 24 outputs, comprised with 3 groups of 8-channel combined RF outputs
·GbIP input data rate range: 1.5 ~ 800Mbps
·Extra-large buffer design, support boost & uniform TS input, with re-unifying of input TS
·Support 8 groups of PID filtering in each channel
·Suppport accurate correction of multiple PCRs in input data
·RF output centre frequency range: 30 ~ 860MHz
·Support gain fine-tune and inband EPL balancing
·Provide -20dB RF test port
·Tracking filter circuit design to ensure outstanding out-of-band rejection
·Embedded fan lowers down internal temperature of the device, ensuring lasting and stable operation
·Support Web-based configuration & management, for achieving centralized management
·Power failure memory recovery
·Dual power supplies warm standby with seamless switching