Satellite Communication Questions

• The present total cost per watt of power generation in geosynchronous orbit is nearly Rs.
• Low-orbit satellites are not used for communications because they
• In synchronous detection of an AM signal
• The communication satellite INSAT-IB had to take up the job of INSAT-IA because the latter collapsed within __________ months of its launch.
• India's first three-axis stabilised geostationary communication satellite is
• After the death of INSAT-IB, the mainstay of the entire Indian satellite network for some time to come would be
• The traffic-handling capacity of an Earth station on the uplink depends on
• To cover all inhabited regions of the Earth, the number of geosynchronous communication satellites required
• A modem is
• System satellites orbit the Earth once in
• The maximum signal propagation time of a geosynchronous satellite transmission is about __________ millisecond.
• The different access methods which permit many satellite users to operate in parallel through a single transponder without interfering with each other as
• In envelope detection of an AM waveform
• Which of the following statement regarding link loss for a satellite is wrong?
• The echo heard by a telephone user on a satellite channel can be removed by using
• The distance of a synchronous satellite from Earth's surface is __________ km.
• A typical signal strength received from a geosynchronous communication satellite is of the order of a few
• The degradation of satellite solar cells with time is mainly due to
• The life time of a geosynchronous communication
• Shannon's Law relates