Over View
QAM6220 is a professional broadcasting quality headend equipment,directly convert input signals which 2 way QPSK Modulated from satellite to TS streams remultiplexer with 1 way ASI signal input .and then transcode to RF signal.Its service to make it widely applied in DVB-C headend network fields and MMDS network.It carries out SD/HD Telivision services,etc.
Key Features
 Modulation mode: QPSK,16,32,64,128,256,512 QAM
 Input connectors: ASI, QPSK
 Variable symbol rate from 1 to 7 Mbaud/s
 High quality of MER and phase noise
 Support PSI/SI tables edition and generation
 PID filtering, modifying, remapping
 Chinese/English LCD display and flexible in operatio

  Full frequency agile 48-860MHz
 Outpur level: 100dBuV~115dBuV,in the step of ±0.5dB
 High reliability design,stable in running
 Ethernet and real time remote control and diagnostics,SNMP Managment

Applications
 DVB-C headend
 MMDS network
 VOD,Internet and video conference
Technical Specifications
ASI Input
 1x ASI Input,1x ASI loop output
 Accordance to EN50083-9
 Connector: BNC,75ohm
 Bit Rate:   ≤51.6 Mbps
 Packet Format: 188, 204 bytes
QPSK Input
 2x QPSK input,2xQPSK loop output
 Frequency:950MHz-2150MHz
 Level:-80 – 12dBm
 Connector: F, 75ohm
IF Interface
 Frequency:36MHz/36.15MHz/44MHz
 Connector: BNC, 50ohm
 Reflection loss:≥18dB
 Level:100dBuv(rms)
RF Interface
 1x RF main,1x RF test
 Connecter: BNC,75ohm
 Output Frequency Range: 48-860MHz
 Return Loss: ≥15dB
 Phase Noise: ≤ -95dBc/Hz@10KHz
 RF Level: 100~115 dBuV(main), 80~95 dBuV(test),in the Step of 0.5dB
 SNR ≥50 dB
Channel Encoding
 QAM Contellations:QPSK,16QAM,32QAM,64QAM,128QAM,256QAM,512 QAM
 MER: ≥40dB
 SNR: ≥50dB
 Randomisation encoding: RS Trellis and Interleaving according to ITU-T Annex A,B
Processing
 PID filtering and modify
 PCR de-jittering and re-correcting
 PSI/SI modify and generation
 Adjustable bitrate accordance to configuation reference
Control Interface
 10/100 BaseT Ethernet, RJ45, WEB, SNMP
 6 keys: UP, DOWN, LEFT, RIGHT, ENTER and ESC

 LCD in Chinese and English

 LED indicate light
Environment
 Power Supply:  AC 90-250V  50/60Hz
 Power consumption:  30 W
 Operating temperature:  -10~50°C
 Storage temperature:  -10~75°C
 Dimensions:  400mm (L) X483mm(W)X44mm(H)
 Weight:  5.4kg