Govt. Engineering College,
Submitted By :--
Rasal Abhijeet Dharmaraj
Guided By :-- Jain Ma’am
Advances In Satellite Communication
• Recent Trends
• A satellite communication is an artificial satellite that relays and
amplifies through the use of a transponder between a source and a
• Satellite communication has served mankind in many ways.
• Transition from point - point to multipoint - multipoint.
• The latest development is the use of networks of small satellites in low
• In this present era, communication plays a vital role.
• A satellite receives a microwave signal from a ground station on the
earth then amplifies and retransmits the signal back to a receiving station
at a different frequency.
• First communications satellites were designed to operate in a passive
• Echo 1 launched by the US in 1960 and Echo 2 in 1964.
• Score launched by the US in 1958, was the first active
• Foundation of the Communications Satellite Corporation
(COMSAT) in 1963.
• International Telecommunications Satellite Organization
(INTELSAT) was formed in 1964.
• Early Bird in 1965.
• The first of the Intelsat 4s provided 4,000 voice circuits.
• In the early 2000s, INTELSAT had 21 satellites in orbit, providing the
world's most extensive telecommunications system.
• Broadcasters use data from meteorological satellites to predict weather
and to broadcast storm warnings when necessary.
• Collect meteorological and infrared information about the atmosphere
and the ocean.
• Global village.
• Television Infrared Observation Satellite (TIROS) 1 in 1960.
• International Mobile Satellite Organization (INMARSAT) in 1979.
• Frequency reuse
• Multiple spot beam
• Laser beam
• Network of small satellite in low orbit.