Paper Presentation And PPT On COMMUNICATIONS SATELLITE

Communications satellites play a major role in telephone transmission,television and radio program distribution,computer communications,maritime navigation and military command and control.      Satellite communications combines such diverse topics as Radio wave propagation ,antennas, orbital mechanics , modulation , detection , coding and radio electronics.For fixed services, communications satellites provide a technology  complementary to that of fiber optic submarine communication cables. They are also used for mobile applications such as communications to ships and planes, for which application of other technologies, such as cable, are impractical or impossible.