Product Description

1.widely application to DSNG for uplink and downlink and dvb-s ***** to DVB-S ETS******1 3.L-band ******0MHz and *******0MH Over View QPSK***0 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 ******0MHz and *******0MHz. This QPSK modulator adapts the advanced FPGA digital singal technology, which greatly promote and optimise the RF output ***** widely applications to DSNG and DVB-S netwok transmission. Key Features According for DVB-S ETS ******1 QPSK modulator standards Adapts the FPGA technology Input TS packet mode: **8/**4 Variable symbol rate from 0.1 to *5 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 ******0MHz and *******0MHz 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 EN******9 Connector: BNC, *5ohm Bit Rate: ≤ **8 Mbps Packet Format: **8/**4 bytes RF Interface RF Output 1x RF output Connecter: F-type, *5ohm Output Frequency Range: ******0MHz and *******0MHz Phase Noise: ≤ -*/*@**********************0 dBuV, in the step of 0.5dB, Level range from 0 to *0dB Symbol Rate:0.***5 Mbaud RF Test-point Connecter: F-type, *5ohm RF Level: *0 - **0 dBuV, in the step of 0.5dB Channel Encoding Contellations: QPSK MER: ≥ *4dB BER: ≤ 0.5 x *0 *9 SNR: ≥ *8dB Randomisation encoding: RS Trellis and Interleaving according to ITU-T Annex A, B, C FEC Encoding: