It discuss on what is communication satellite, components, benefits & working

1. COMMUNICATION SATELLITE

2. INTRODUCTION
▪ Communication satellites power our insatiable
appetite for data on the go and can connect
people in different locations anywhere on
Earth, with voice, image, video and broadband
internet.
▪ Today, over 1.4 billion smartphones are in use.
This equates to one in every five people on our
planet accessing ‘apps’ and data on the move.
If we add TV, radio and the internet, then
telecommunications are as integral to our daily
lives as access to fuel and water.
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3. BENEFITS OF COMMUNICATION SATELLITES
▪ They link ships crossing the oceans,
provide communications for aircraft,
connect people in remote areas not
serviced by cellular or fibre optic
networks, and enable disaster response
teams to keep in touch when ground-
level infrastructure has collapsed.
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4. COMPONENTS OF A COMMUNICATION SATELLITE
.
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6. The energy source of the satellite are the solar panels and the batteries . The batteries are
used as an emergency backup during eclipse.
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7. The sun sensor helps to angle the solar panels in the right direction so that
maximum solar energy is captured
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8. A modulated signal transmitted from the earth is received by the reflector
antenna and send to the transponder
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9. The position , movement and health of the satellite is monitored from the control station on
earth with exchange of signals of wavelength that are different from other signals
transmitted
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10. When the satellite accidentally displaces from its orbit due to the earth’s gravitational
force and due to the presence of the moon . The Satellite can be brought into place with the
help of thrusters , that uses fuel from the fuel tank
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11. COMMUNICATION SATELLITE
▪ Communication satellites are found in the geostationary orbital 35 786 km from the
earths equator and moves from east to west along with the earths rotation and takes
23 hours 56 minutes and 4 seconds to complete its rotation.
▪ This is why the geostationary satellite look like a fixed star in the sky and hence an
antenna on Earth can be fixed to always stay pointed towards that satellite without
moving.
▪ Satellites in GEO cover a large range of Earth so as few as three equally-spaced
satellites can provide near global coverage
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13. WORKING OF A COMMUNICATION SATELLITE
▪ A communications satellite is an artificial satellite that relays and amplifies radio
telecommunications signals through a transponder.
▪ It basically creates a communication channel between a source transmitter and a
receiver at different locations on earth.
▪ Communications satellites use a wide range of radio and microwave frequencies.
▪ The high frequency radio waves used for telecommunications links travel by line of
sight, they get obstructed by the curve of the earth
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15. WORKS CITED
▪ https://www.youngwonks.com/blog/What-is-Satellite-Communication-and-How-Does-It-
Work
▪ https://en.wikipedia.org/wiki/Communications_satellite
▪ https://www.sciencedirect.com/topics/engineering/communication-satellites
▪ https://www.esa.int/Enabling_Support/Space_Transportation/Types_of_orbits#GEO
▪ https://www.omicsonline.org/conferences-list/types-of-satellites-and-applications
▪ https://www.nasa.gov/missions/earth/fs13grc.html
▪ https://www.aerospace-technology.com/projects/globalstar/attachment/globalstar2/
▪ https://youtu.be/ror4P1UAv_g
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