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QPSK6300 is a prefessional digital headend transcoder with high quality and stability, complies with DVB-S standards. It upconvert frequency signal into RF signal after the processing of RS encoding, scrambling, interleaving, I/Q modulator, wave filter,finally transmit the signal to any desired CATV or off-air output channel between 450-950MHz and 950-2150MHz. This QPSK modulator adapts the advanced FPGA digital singal technology, which greatly promote and optimise the RF output performance.It widely applications to DSNG and DVB-S netwok transmission.

Key Features
 According for DVB-S ETS 300-421 QPSK modulator standards
 Adapts the FPGA technology
 Input TS packet mode: 188/204
 Variable symbol rate from 0.1 to 45 Mbaud/s
 High quality of MER and phase noise 
 Support PSI/SI tables edition, PID filtering and remapping
 Chinese/English LCD display,flexible in operation
 SNMP management, real time remote control and diagnostics
 L frequency agile 450-950MHz and 950-2150MHz
 PID modifying and PSI/SI generating
 High reliability design, stable in running

Applications
 DVB-S Headend
 MMDS/MUDS
 DSNG for uplink and downlink

Technical Specifications
Data Interfaces
ASI
 1 ASI Input
 Accordance to EN50083-9
 Connector: BNC,75ohm
 Bit Rate: ≤ 108 Mbps
 Packet Format: 188/204 bytes

RF Interface
RF Output
 1x RF output
 Connecter: F-type,75ohm
 Output Frequency Range: 450-950MHz and 950-2150MHz
 Phase Noise: ≤ -95dBc/Hz@10KHz
 RF Level: 110~120 dBuV, in the step of 0.5dB, Level range from 0 to 20dB
 Symbol Rate:0.1-45 Mbaud

RF Test-point
 Connecter: F-type,75ohm
 RF Level: 90 - 100 dBuV, in the step of 0.5dB

Channel Encoding
 Contellations: QPSK
 MER: ≥  14dB
 BER: ≤ 0.5 x 10 -9
 SNR: ≥ 48dB
 Randomisation encoding: RS Trellis and Interleaving according to ITU-T Annex A,B,C
 FEC Encoding:1/2, 2/3, 3/4, 5/6, 7/8

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 and OTA
 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: 25W
 Operating temperature: -10-50°C
 Storage temperature: -10-75°C
 Dimensions: 400mm (L) X483mm(W)X44mm(H)
 Weight: 4.5kg