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Hi everyone It was very useful. Here comes another question. the question is that : how geographically different Earth Stations can transmit their data to one transponder of a TV broadcasting satellite ? In other words What is Multiple Access of TV broadcasting satellites? Because I've seen...

Thank Johnwiss You said that bit rate required for NTSC quality TV is 4 Mbps per channel.I wanted to know if HDTV quality is used for TV broadcasting and I have read in Europian standards that bitrate required for HDTV is 20 - 40 Mbps. Can you reffer me to somewhere in the www that I could...

Very well I wanted to know that why is QPSK modulation with Convolutional and Reed-Solomon Coding used ? and why is not SCPC used ?

Hi everyone, I am working on Video Broadcasting Satellites. I want to know 1)signal charactreistics of uplink & downlink 2)characteristics of earth station 3)how astellite transponder works I have elementary information about topics above and I need more detail such as: 1)exact modulation and...