DVB-S2 Modulator
DVB-S2 modulator
1.Full Complying with EN302 307 (DVB-S2) and DVB-S standard
2.work as DVB-S2 modulator and DVB-S 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
