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 12.5 KHz and offers an adjustable output level.

FEATURE
﹡The signal coding comply to ITU-T J.83
﹡PID filtrate and remapping can be configured
﹡PSI/SI information updating possible
﹡Filling MPEG TS automatically and delete empty packet intellectively
﹡PCR emendation supported
﹡188/204 data packet adaption automatically
﹡RF output frequency scope 48~862MHz, in 0.1MHz step
﹡Output level can be adjusted correctly in 108~118dBuV
﹡Web browser remote control, network upgrade supported

SPECIFICATION
MPEG TS Input
﹡2 DVB-ASI input
﹡Comply to EN50083-9 ASI connecter
﹡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
﹡Comply to EN50083-9 ASI connecter
﹡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 ＜0.1º
﹡Phase jitter ＜0.5º RMS
﹡Outband restrain ＞55dB
﹡MER ＞33Db
﹡C/N ＞45dB
﹡Connector 75ohm, F type

QAM parameter
﹡Mode 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℃
﹡Storage temperature -10~70℃
﹡Humidity 10%-95%
﹡Dimension 318mm(W)×483(L)mm×44mm(H)
﹡Weight 4kg