Question

What is the need of satellite communication? Elaborate

Answer 1

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Need  for  satellite  communication =1] It  studies  environment  and  temperature .2] Sends  pictures  and  maps  of  earth.3]The natural wealth  is  studied  .4] Telephone, mobile  communication .5] Programmes  of  t.v  broadcast .

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Answer 2

the context of a worldwide military communications network, satellite communications systemsare very important. Satellite communications links add capacity to existing communications capabilitiesand provide additional alternate routings for communications traffic. Satellite links, as one of severalkinds of long-distance links, interconnect switching centers located strategically around the world. Theyare part of the defense communication systems (DCS) network. One important aspect of the satellitecommunications network is that it continues in operation under conditions that sometimes render othermethods of communications inoperable. Because of this, satellites make a significant contribution toimproved reliability of Navy communications.ADVANTAGES OF SATELLITE COMMUNICATIONSSatellite communications have unique advantages over conventional long distance transmissions.Satellite links are unaffected by the propagation variations that interfere with hf radio. They are also freefrom the high attenuation of wire or cable facilities and are capable of spanning long distances. Thenumerous repeater stations required for line-of-sight or troposcatte