Satellite LBAND Modulator

APIS 4671 DVB-S/ S2 modulator is a high performance modulator developed according to DVB-S2 ( EN302307) standard which is the standard of second generation of the European broadband satellite telecommunication. It adopts advanced framing structure, channel coding and modulation technology, increasing over 50% transmission ability more than DVB-S modulator under the same transmission condition and also providing a more powerful receiving ability in the same spectral efficiency. In addition, it is backwards-compatible with DVB-S ( EN300421) modulating standard. This DVB-S2 modulator supports local and remote control through NMS software. The APIS 4671 DVB-S/ S2 modulator can be used for Broadcasting, Interactive Services, News Gathering and other Broadband satellite applications. SPECIFICATION MPEG-TS Input - Supporting both packet and byte mode TS input - Supporting 188/ 204Byte transmission stream packet - Two ASI inputs, supporting hot backup - ASI input connector: BNC, impedance 75 IF Output - Frequency is continuously adjustable from 50 to 100MHz - Output Level attenuation is continuously adjustable from 0 to 31 dB; in step of 1 dB. - Maximum Output level: 0dBm - MERe42dB - Connector: N type, impedance 50 Channel coding and modulation - Outer coding DVB-S DVB-S2 RS coding BCH coding - Inner coding Convolutional LDPC coding - Code 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 - Constellation QPSK QPSK, 8PSK - Roll-off Factor 0.2, 0.25, 0.35 0.2, 0.25, 0.35 - Symbol Rate 1~ 45MBauds 1~ 30M@ 8PSK; 1~ 45 M@ QPSK Miscellaneous - Dimension 44mm 482mm 410mm - Environmental 0~ 45 ( operation) , -20~ 80 ( storage) - Power 100-240VAC 10% , 50Hz-60Hz