Model Number

DMB-5000

DMB-5000 QAM modulator is a high-quality QAM digital Modulator, based on international DVB standard, designed for digital TV and signal transmissions.

DMB-5000 receives multiplexed TS data stream and performs frame weaving, Reed Soloman (RS) encoding and QAM modulation and results in modulated RF or IF output signals, ready for the cable transmission network. With digital IF modulation, the modulator has the high performance of MER, carrier-to-noise ratio, phase noise, margin of error, etc. It also supports PID filtrating & mapping and PSI/SI updating. The DMB-5000 QAM modulator supports constellation of 16 QAM, 32 QAM, 64 QAM, 128 QAM, and 256 QAM. For the model with RF output, the equipment provides RF output in the frequency range of 50 MHz -860 MHz, tunable in a step of  0.1 MHz and offers an adjustable output level.

FEATURE

﹡The channel coding comply to ITU-T J.83
﹡PID filtrate and remapping can be configured
﹡PSI/SI updating supported
﹡Filling MPEG TS automatically and delete empty packet intellectively
﹡PCR emendation supported
﹡188/204 data packet adaption automatically
﹡RF output in the frequency range of 50 MHz -860 MHz, tunable in a step of  0.1 MHz
﹡Adjustable output level in 108~118dBuV
﹡Remote control via Web browser supported

SPECIFICATION

MPEG TS Input
﹡2 DVB-ASI inputs
﹡ ASI interface comply to EN50083-9 standard
﹡Effective bit rate: 1Mbps~51.6Mbps
﹡ASI mode: BYTE or BURST
﹡MPEG frame: 188/204 data packet
﹡Connector: 75ohm, BNC

MPEG TS output
﹡1 DVB-ASI loop through
﹡ ASI interface comply to EN50083-9 standard
﹡Effective bit rate: 1Mbps~51.6Mbps
﹡ASI mode: BYTE or BURST
﹡MPEG frame: 188/204 Bytes packet
﹡Connector: 75ohm, BNC

RF Output
﹡Output frequency: 50MHz~860MHz
﹡Output level: 105dBuV~ 121 dBuV (adjustable)
﹡Output return loss:  ≥10dB
﹡I/Q amplitude unbalanced: ＜0.1% 
﹡I/Q quadrature error ＜0.1BR ﹡Phase jitter  ＜0.5 RMS
﹡Outband restrain:  ＞55dB
﹡MER:   ＞33Db
﹡C/N:   ＞45dB
﹡Connector: 75ohm, F type

QAM parameter
﹡Constellation:  16, 32, 64, 128, 256 QAM
﹡Symbol rate: 3.5~7 Mbaud/s
﹡Width:   ≤8MHz

Control
﹡Front Panel LCD display & cursor/execute keys
﹡Web Server Embedded

Power
﹡Voltage: AC 90~260V
﹡Frequency: 50~60Hz
﹡Consumption: Max. 30W

Mechanical Parameter
﹡Operational temperature:  -10~50°C
﹡Storage temperature:  -10~70°C
﹡Humidity:   10%-95%