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Satellite communication

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Satellite Communication utilization has become widespread and present throughout the country for such numerous applications like tv, DTH Broadcasting, DSNG and VSAT to use the distinctive capabilities in terms of coverage and stretch. The technology has matured well over the past 3 decades and is being employed on an advertisement basis for an outsized variety of applications. Most people square measure touched by satellite communication in additional ways that then we tend to understand.


The potential of the technology for social applications continues to fascinate ISRO and efforts are on to leverage the advantages of technology to the betterment of humanity. necessary initiatives pursued by ISRO towards social development embrace Tele-education, Tele-medicine, Village Resource Centre (VRC) and Disaster Management System Programmes. The potential of house technology for applications of national development is big.

Read More Descriptive Article About Satellite Click Here

The most obvious queries that come back to mind are

  1.  why are these satellites in completely totally different orbits?
  2.  What are the elements within them that facilitate them to accomplish all of their assigned tasks?
  3. Which may seriously injury the electronic section of a satellite?

 why are these satellites in completely totally different orbits?

It's a well-known incontrovertible fact that proven fact that a satellite stays in orbit due to the balance between it is a well-known fact that a satellite stays in orbit due to the balance between attraction pull and force attraction pull and force The angular rate of the satellite is determined by the force balance equation that balances the attraction and centrifugal forces. The angular rate of the satellite is determined by the force balance equation that balances the attraction and centrifugal forces once the satellite is deployed it's given adequate speed to balance these 2 forces once the satellite is deployed it's given adequate speed to balance these 2 forces A satellite on the subject of earth needs a lot of speed to resist the attraction pull than those settled beyond the planet. A satellite on the subject of earth needs a lot of speed to resist the attraction pull than those settled beyond the planet thanks to the negligible resistance in area satellites ne'er lose speed thanks to the negligible resistance in area satellites ne'er lose speed this suggests satellites can continue their circular motion around the earth with none external energy supply this suggests satellites can continue their circular motion around the earth with none external energy source satellite are placed either in low-earth orbit Satellites are placed either in low-earth orbit Medium Earth orbit Or fixed Earth orbit, these 3 orbits are illustrated here. we'll get into a lot of details of them. Later fixed Earth orbit, these 3 orbits are illustrated here. we'll get into a lot of details of them.

 Which may seriously injury the electronic section of a satellite?

Later there's a remarkable region in an area referred to as the Van Allen physicist to belt a section jam-packed with extremely energetic charged particles there's a remarkable region in space referred to as the Van Allen belt a section jam-packed with extremely energetic charged particles. it's most popular to not park satellites within the Van Allen belt typically, the choice on what orbit is to be chosen for putting the satellite depends on the applying and purpose of the satellite if the choice on what orbit is to be chosen for putting the satellite depends on the applying and purpose of the satellite. If the satellite is constructed for Earth Observation prognostication geographical region measuring satellite phone calls, etc.

What are the elements within them that facilitate them to accomplish all of their assigned tasks?

The satellite is constructed for Earth Observation prognostication geographical region measuring satellite phone calls, etc Then orbits nearer to the planet are chosen, Leo is that the nearest to the planet at an altitude of between Leo, is that the nearest to the planet at an altitude of between a hundred and sixty and 2000 kilometers and its orbital amount is more or less one.5 hours a hundred and sixty and 2000 kilometers and its orbital amount is more or less one.5 hours however these styles of satellite cowl less space of the planet. such a big amount of satellites are needed to get world college however these styles of satellites cover less space of the planet. such a big amount of satellites are needed to get world coverage that is why within the case of broadcasting a high orbit. Like geo is chosen that is why within the case of broadcasting a high orbit. like geo is chosen satellites in orbit are at a height of thirty 5 thousand seven hundred and eighty-six kilometers and satellites in orbit are at a height of cardinal thousand seven hundred and 86 kilometers and Rotate at constant angular speed because the earth rotates at constant angular speed because of the earth. It means that the satellite takes precisely twenty-three hours fifty-six minutes and 4 seconds to complete one rotation It means that the satellite takes precisely twenty-three hours fifty-six minutes and 4 seconds to complete one rotation among the orbit. there's a special class of orbit referred to as among the orbit.

 Where the best place for the satellite to communicate in the earth?

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There's a special class of orbit referred to as a geosynchronous orbit that is homocentric to the equator of the planet geosynchronous orbit that is homocentric to the equator of the planet. These satellites stay stationary with regard to the planet thanks to this thanks to this fixed satellites are the best alternative for tv broadcasting since it means that not got to modify the angle of your satellite dish fixed satellites are the best alternative for tv broadcasting since it means that you are doing not got to modify the angle of your satellite dish once more, and once more once more, and once more this is often the explanation "why the fixed belt is therefore jam-packed with satellites?" and it's managed by a world organization referred to as this is often the explanation to as ITU fixed orbits are occupied by a number of navigation satellites.

How does Gps System work in satellite for communication?

Also, geo satellites will cowl common fraction of the layer fixed orbits are occupied by some navigation satellites. additionally geo satellites will cowl common fraction of the layer therefore 3 satellites are adequate to hide the whole Earth For navigation applications like GPS Mio is that the wise choice despite the fact that the Leo is nearest to the planet For navigation applications like GPS Mio is that the wise choice despite the fact that the Leo is nearest to the planet Satellites during this orbit revolves at an awfully high-speed thanks to these receivers on earth didn't perform the navigation thanks to these receivers on earth didn't perform the navigation Calculations accurately Leo wants plenty more satellites to hide the whole Earth. so GPS satellites used Mio in Calculations accurately Leo wants plenty more satellites to hide the whole Earth. so GPS satellites used Mio typical GPS twenty-four satellites will cowl the whole earth and therefore the orbital amount is twelve hours. A typical GPS twenty-four satellites will cowl the whole earth and therefore, the orbital amount is twelve hours currently let's investigate the most elements of a communication satellite currently.

Some Other Features That helps satellite for communication?

Let's investigate the most elements of a communication satellite besides their functions at the guts of communication satellites are the electrical devices besides their functions at the guts of communication satellites are the electrical devices. The most task of an electrical device is to vary the frequency of the received signal take away any signal noise and amplify the signal power on the most task of an electrical device is to vary the frequency of the received signal take away any signal noise and amplify the signal power on Kayuu band satellites the transponder converts from fourteen Gc to twelve Gc and a satellite will have twenty or a lot of Kayuu band satellites the transponder converts from fourteen Gc to twelve Gc and a satellite will have twenty or a lot of Transponders it's obvious that transponders need an excellent deal of electric power to handle all of those functions. Transponders it's obvious that transponders need an excellent deal of electric power to handle all of those functions For power to provide a satellite has the choices of batteries and electrical devices. For power to provide a satellite has the choices of batteries and star panels, The star panel is employed to power the equipment however throughout an eclipse time.

The Structure of the Satellite for Massive Communication:-

The batteries are used The electrical device is employed to power the equipment however throughout eclipse time. The batteries are used to see a Sun detector on the satellite. you can see a Sun detector on the satellite. This Sun detector helps to angle the star panels in the right direction so that the utmost power may be extracted from the Sun. This Sun detector helps to angle the star panels within the right direction in order that the utmost power may be extracted from the Sun currently, let's examine however the electrical device receives the sign from the antenna currently, fastened to satellites our reflector antenna the foremost common antenna fastened to satellites our reflector antenna a Satellite is meant to follow its meant swish orbit but the field of force around the satellite isn't uniform thanks to the unequal mass distribution of the planet and therefore the presence of the moon and therefore the Sun Uniform thanks to the unequal mass distribution of the planet and therefore the presence of the moon and therefore the Sun due to this typically the satellite gets displaced from its meant orbital position due to this typically the satellite gets displaced from its meant orbital position this is often a dangerous state of affairs. It'll cause a whole loss of signal this is often a dangerous state of affairs since it'll cause a whole loss of signal. To avoid such a state of affairs Satellites build the use of thrusters. Satellites build the use of thrusters.

The function of Thruster In Satellite for communication:-


  1. The thrusters are dismissed and keep the satellite within the right position these additionally facilitate satellites to avoid area junk. The thrusters are dismissed and keep the satellite within the right position these additionally facilitate satellites to avoid space junk. The fuel required for the thrusters is saved in tanks within the satellite body Of the satellite and management of the thrusters are unendingly monitored from an earth station Of the satellite and management of the thrusters are unendingly monitored from an earth station excluding the position managements the planet station additionally monitors the health of the satellite and speed excluding the position managements the planet station additionally monitors the condition of the satellite and speed this is often done through following measure and control systems this is often done through following measure and control systems. These systems unendingly send the signal to the planet station and maintain the contact between earth and therefore the satellite, These systems unendingly send the signal to the planet station and maintain the contact between earth and therefore the satellite typically, these signals are changed at totally different frequencies to differentiate from alternative communication signals typically, these signals are changed at totally different frequencies to differentiate from alternative communication signals have you ever ever thought what happens to a satellite once it's now not practical or its lifetime is nearing the tip have you ever ever thought.
  2. The thrusters are dismissed and keep the satellite within the right position these additionally facilitate satellites to avoid area junk. The thrusters are dismissed and keep the satellite within the right position these additionally facilitate satellites to avoid space junk. The fuel required for the thrusters is saved in tanks within the satellite body Of the satellite and management of the thrusters are unendingly monitored from an earth station Of the satellite and management of the thrusters are unendingly monitored from an earth station excluding the position managements the planet station additionally monitors the health of the satellite and speed excluding the position managements the planet station additionally monitors the condition of the satellite and speed this is often done through following measure and control systems this is often done through following measure and control systems. These systems unendingly send the signal to the planet station and maintain the contact between earth and therefore the satellite, These systems unendingly send the signal to the planet station and maintain the contact between earth and therefore the satellite typically, these signals are changed at totally different frequencies to differentiate from alternative communication signals typically, these signals are changed at totally different frequencies to differentiate from alternative communication signals have you ever ever thought what happens to a satellite once it's now not practical or its lifetime is nearing the tip have you ever ever thought .


what happens to a satellite when it's End Period?

These satellites may damage alternative operational satellites or spacecraftThese satellites may damage alternative operational.satellite to traumatize this example:- Inactive satellites are transferred to the necropolis orbit by activating the thrusters simply by increasing the movement speed of the satellite. we'll be able to transfer it to a better radius orbit simply by increasing the movement speed of the satellite. Be able to transfer it to a better radius orbit This operation is created clear during this animation, The necropolis orbit could be a few hundred kilometers on top of the geosynchronous orbit. The necropolis orbit could be a few hundred kilometers on top of the geosynchronous orbit For this operation the thrusters consume a constant quantity of fuel as a satellite wants for regarding 3 months of station-keeping. For this operation, the thrusters consume the constant quantity of fuel as a satellite wants for regarding 3 months of station-keeping. The satellites we've mentioned thus far are communication satellites for GPS satellites. The satellites we've mentioned thus far are communication satellites for GPS satellites the foremost vital elements are a timepiece and therefore the antenna the foremost vital elements are a timepiece and therefore the antenna.

Function Of Antenna for Communication In Satellite?

The Elbe River and navigation antennas utilized in these types of satellites are illustrated here, The Elbe River and navigation antennas utilized in these types of satellites are illustrated here,The earth observation satellites that are largely in Leo carry varied styles of sensors imagers, etc. counting on their mission the planet observation satellites that are largely in Leo carry varied styles of sensors imagers, etc. Counting on their mission currently for a few fascinating info within the visuals of the satellite during this video currently for a few fascinating info within the visuals of the satellite during this video you would possibly have discovered that they were lined with a gold-colored foil you would possibly have discovered that they were lined with a gold-colored foil

What is the function of this foil in satellite?

The fact it is good because it seems to be initially sight truth it's not disappointed because it seems to initially sight If you're taking a cross-sectional of it, you'll be able to see it's a multi-layered structure. If you're taking a cross-sectional of it, you'll be able to see it's a multi-layered structure. Satellites face Brobdingnagian temperature variations in an area wherever the temperatures vary from minus one hundred fifty to two hundred degrees astronomer. Satellites face Brobdingnagian temperature variations in an area wherever the temperatures vary from minus one hundred fifty to two hundred degrees Celsius. what are more satellites face the difficulty of serious radiation from the Sun what is more satellites face the difficulty of serious radiation from the Sun, This material really acts as a protect that protects the satellite elements from the serious temperature variations and from the star. This material really acts as a protect that protects the satellite elements from the serious temperature variations and radiation.

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