DVB-S2 Modulator

Outline: DVB-S2 modulator which is a high performance modulator is developed according to the Europe satellite communications system digital video broadcasting second-generation standard DVB-S2 (EN302307), the modulator standard adopts more advanced channel coding techniques and higher order modulation combination, in the same conditions it increases more 50% transmission capacity than DVB-S, and can provide a more robust receive ability under the same spectrum efficiency. The device's RF output is in the L-band, can directly form a complete set with satellite communication system's digital TV transmitter. And downward compatible DVB-S's (EN300421) all kinds working modes support local and remote configuration modulation parameters. Feature: l Fully compliant to EN302 307(DVB-S2 Broadcast mode) and EN300 421(DVB-S) l Supports symbol rate of 1 30Msps(DVB-S2), 1 45Msps(DVB-S) l Supports FEC rate of 1/2,3/5,2/3,3/4,4/5,5/6,8/9,9/10(DVB-S2), 1/2,2/3,3/4,5/6,7/8(DVB-S) l 2 ASI Input, supports hot-backup online; DS3 input optional l Excellent MER performance over 38db l RF output range of 950 2150Mhz, 1Khz step l LCD display, keyboard and network management Specification: MPEG-TS Input Support the transport stream packet mode and burst mode Support 188/204Byte transport stream packets 2 Way ASI input, support hot backup input mode Input Connector Specifications: BNC Block, impedance 75Ω RF Output 950-2150MHz continuously adjustable Level attenuation continuously adjustable (0 32dB), adjustable stepping 0.5dB Maximum output level:0dBm MER≥36dB Output connector specification: F Block, impedance 50Ω Modulation and channel coding Outside the error-correcting code DVB-S DVB-S2 RS code BCH code Inside the error-correcting code Convolutional code LDPC code Coding rate 1/2,2/3,3/4,5/6,7/8 1/2,3/5,2/3,3/4,4/5,5/6,8/9,9/10 Modulation constellation QPSK QPSK,8PSK Roll-off factor 0.2,0.25,0.35 0.2,0.25,0.35 Symbol Rate 1-45MBauds 1-30MBauds Working condition Size 44mm×482mm×410mm Environment 0 45ºC(operating);-20 80ºC(storage) Power 220VAC±10%,50Hz,25W