Why DVB-S2?
•Why DVB-S2: New market demands: A. HDTV/3DTV (large BW) & IPTV (large traffic) spreading rapidly: Market driver! B. Need for higher / better compression algorithms (MPEG4) C. Need for more efficient transportation (DVB-S2) = 3 master pillars supporting each other 3 The squeeze of the poor satellite service provider: 4
What is the spare capacity of the DVB-S2?
Spare capacity (VSAT, coordination channel,…): 4.3 MHz Spare capacity (VSAT, coordination channel,…): 5.2 MHz DVB-S2 and Broadcast applications (DTH)
What is the download speed of a DVB S2?
DVB-S DVB-S2 DVB-S DVB-S2 27.5 Mbauds (ROF 0.35) 30.9 Mbauds (ROF 0.20) 27.5 Mbauds (ROF 0.35) 29.7 Mbauds (ROF 0.25) QPSK 2/3 QPSK 3/4 QPSK 7/8 8PSK 23 33.8 Mbps 46 Mbps (+36%) 44.4 Mbps 58.8 Mbps (+32%)
What is the difference between DVB-S/DSNG and dvb/s2?
Main differences between DVB-S/DSNG and DVB-S2 DVB-S/DSNG Meant for broadcast only Fixed 188 byte/packets One TS / carrier RS and Viterbi coding Need of high Rx margin QPSK /QPSK-8PSK-16QAM 35% 25% Roll-off carrier onsumer LN’s work in QPSK only DVB-S2