Communication Satellite By Oishi Hawlader Introduction Communication satellite

Communication Satellite By: Oishi Hawlader

Introduction Communication satellite Are artificial satellites placed in orbit around the earth that relays television, radio, and telephone signals They are also used for internet, and military applications Used by both private and government organizations Modern communications satellites typicallyuse geosynchronous orbits, Molniya orbits or Low Earth orbits. To date there are over 2, 000 communications satellites in Earth’s orbit serving a variety of purposes

Origins The world's first artificial satellite was the Sputnik 1. It was launched by the Soviet Union in 1957 and Sergei Korolev as chief designer. This invention created a base for the creation of many other types of satellites including the communication satellites The first communications satellite sent to orbit earth was SCORE. It was the first artificial satellite sent to space solely for global communication and advances in the field. On December 18, 1958, SCORE provided a first test of a communications relay system in space

Development/Growth October 4, 1957 Sputnik 1 was the first artificial satellite with a radio transmitter December 18, 1958 Project SCORE was the first communications satellite (it was also a test of a space communications relay system) August 12, 1960 Echo 1 was the first passive reflector communications satellite (balloon) July 10, 1962 Telstar 1 was first active communications satellite to relay television, telephone and high-speed data April 23, 1965 Molniya was the first military communications satellite (owned by the Soviet Union) November 9, 1972 Anik 1 was the first domestic communications satellite system using geosynchronous orbit (owned by Canada) November 16, 2000 AO-40 First satellite to use GPS for navigation

Function “Communication satellites handle three main types of traffic: data, broadcasting and telecommunications. ” A major advantage of Communication satellites are that they can send signals from one satellite to many locations, and they don't require extensive infrastructure because of this satellites are used for: Network broadcasts Cable programming Delivery of programming to mobile devices, laptops and cell phones In-flight phone communications GPS locators Internet access Military Amateur radio Radio Etc.

How it Works Communications satellites relay a wide range of radio and microwave frequencies from one place on Earth to another. These satellites catch signals sent up to them from a ground-based satellite transmitter dish, amplifying them via a transponder so they have enough strength to continue , and then bounce them back down somewhere else to the satellite receiving dish. The radio signals can carry information like telephone calls, Internet data radio and TV broadcasts. To avoid signal interference, international organizations have regulations for which frequency ranges certain organizations can use. Most satellites have at least two parts in common - an antenna and a power source. The antenna is used to send and receive information. The power source for example a solar panel that makes power by turning sunlight into electricity.

Further information on how satellites work

Projected Development As our world changes and the data, voice and video traffic increase I think there will be an increase in demand for communication satellites. It can be expected that technology in the satellites change and…. . Will allow satellites to handle more traffic Will have more advanced computer systems and higher computer power Will increase satellite life spans from 10 to 15 years to 20 to 30 years. Be smaller in size to make transportation to orbit easier Be able to work with a larger variety of signals enable new communication systems to be used around the world Will have improvements in speed so that the transportation of these signals are almost instantaneous.

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