Outline
JXDH-6513 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, 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 all kinds working modes support local and remote configuration modulation parameters.
Feature
Fully compliant to DVB-S2 Broadcast mode and DVB-S
Supports symbol rate of 1~30Msps(DVB-S2), 1~45Msps(DVB-S)
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)
2 ASI Input, supports hot-backup online; DS3 input optional
Excellent MER performance over 38db
RF output range of 950~2150Mhz, 1Khz step
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 | ||
