A must-have technology - Satcom
The human kind is the only kind to invent and use technology. You can say that technology has come to rule our lives. Technology entered our lives more than a hundred years ago, yet slowly but surely it took over all the fields that compose our lives.
Most of technology devices were invented at first to serve the needs of war. Military needed to get along better at the battle field which became more complex with the years. Instead of fighting like the ancient Greeks face to face, wars are now conducted from afar.
Invented at the fifties, Satcom technology makes communication from one point to another a lot easier and in many ways safer. Today, any developed country which has a role in the global diplomacy and is interested in keeping it wants a satcom technology in hand.
The modern world uses this invention everywhere, from top military issues to broadcasting and mapping. For this purpose the satcom technology is a must-have for every country. It's a technology worth investing big amounts of money in.
Don't leave your satcom alone
As the importance of the intact operation of all satcom technology is increasing due to the growing use of it in every field of our lives, the need to make sure that it stays that way is becoming a big necessity. The only reason we are able to enjoy the huge advantages of satcom technology is that all satellites work and remain in perfect condition, as well as their transmitters on Earth. In order for the communication services that are produced by satellites we benefit from will keep working in high quality, the operators on the ground must watch carefully on the working process and the communication between the satellites and the transmitters.
The slightest change in position of one satellite, for example, can influence an entire course of action down on Earth. Moreover, the operators must maintain the good communication between satellites as satcom technology includes in many cases more than just one satellite. Since there are many kinds of satellites, a country can own and launch to the atmosphere's satellites field more than one or two satellites. Satcom is the way to keep on developing a country's communication with other countries and its status in the world in relations to others.
That is the reason governments are investing so much in protecting their satcom technology from harm and do whatever they can so that it won't be left alone, up there and down here.
Satcom - communicating is all
The everlasting need to make sure communication will continue to flow drives us all, because communication, in this world, is everything. With satcom we truly understand the need and the ability to communicate with ease.
Sunday, December 19, 2010
Sunday, September 26, 2010
Satellite
How and why do People use Satellites?
Why and how? Two very important questions. However, first we should ask ourselves what people use it for. People use satellites for various purposes such as for weather, T.V., phones and anything else needed. It wasn’t until not so many years ago that Satellites were considered a rarity, very secretive and confidential.
They were used mainly for military purposes - navigation and espionage. As years past, this has changed, and today satellites are part of our everyday lives. Sometimes we recognize their use and sometimes they are in the background, not always visible.
The use of Satellites ahs saved people time and money throughout the years, since it went into use. For example, newspapers and magazines that use Satellite transmission are timelier due to the fact that they transmit their text and images to several printing destinations using satellite to quicken local distribution.
Another example is cable television that relies on Satellites to distribute transmission before sending signals through wires into our homes. One cannot forget the GPS (Global Positioning System) we all know so well and on which we so heavily depend nowadays to take us to the right destination.
There are different kinds of orbits and several different kinds of Satellites and their different intended uses as mentioned above will affect the choice of orbit.
What is a Satellite?
A Satellite is anything that circulates around a planet. The moon is the first original natural Satellite and three are many others that are artificial and made by man that are closer to Earth and the route that they follow is called an orbit.
Currently manmade Satellites are not built in quantities, but rather custom-made to perform a specific task. However, there are exceptions such as the GPS Satellites and Iridium Satellites.
Even though, according to dry terminology anything that is in orbit (revolving around Earth) is a Satellite, the term is mainly used to describe a useful device situated in orbit with the intention to be used for a specific assignment. This why we hear about “Weather Satellites” , “Communication Satellites”, “Scientific Satellites” etc.
All Shapes and Sizes of Satellites
Satellites can be found in all kinds of shapes and sizes, depending on their intended use and function. For instance, Weather satellites that assist meteorologists to predict the weather as well as understand what is happening in the present.
This type of Satellite holds cameras that can return images of Earth’s weather from specific points. There are also Communication Satellites that their job is to transmit data and conversation. There also Broadcast Satellites, Scientific satellites, Rescue Satellites, Earth Observation Satellites and Military satellites (usually very confidential).
In short, there are endless Satellites with endless applications for numerous uses.
Why and how? Two very important questions. However, first we should ask ourselves what people use it for. People use satellites for various purposes such as for weather, T.V., phones and anything else needed. It wasn’t until not so many years ago that Satellites were considered a rarity, very secretive and confidential.
They were used mainly for military purposes - navigation and espionage. As years past, this has changed, and today satellites are part of our everyday lives. Sometimes we recognize their use and sometimes they are in the background, not always visible.
The use of Satellites ahs saved people time and money throughout the years, since it went into use. For example, newspapers and magazines that use Satellite transmission are timelier due to the fact that they transmit their text and images to several printing destinations using satellite to quicken local distribution.
Another example is cable television that relies on Satellites to distribute transmission before sending signals through wires into our homes. One cannot forget the GPS (Global Positioning System) we all know so well and on which we so heavily depend nowadays to take us to the right destination.
There are different kinds of orbits and several different kinds of Satellites and their different intended uses as mentioned above will affect the choice of orbit.
What is a Satellite?
A Satellite is anything that circulates around a planet. The moon is the first original natural Satellite and three are many others that are artificial and made by man that are closer to Earth and the route that they follow is called an orbit.
Currently manmade Satellites are not built in quantities, but rather custom-made to perform a specific task. However, there are exceptions such as the GPS Satellites and Iridium Satellites.
Even though, according to dry terminology anything that is in orbit (revolving around Earth) is a Satellite, the term is mainly used to describe a useful device situated in orbit with the intention to be used for a specific assignment. This why we hear about “Weather Satellites” , “Communication Satellites”, “Scientific Satellites” etc.
All Shapes and Sizes of Satellites
Satellites can be found in all kinds of shapes and sizes, depending on their intended use and function. For instance, Weather satellites that assist meteorologists to predict the weather as well as understand what is happening in the present.
This type of Satellite holds cameras that can return images of Earth’s weather from specific points. There are also Communication Satellites that their job is to transmit data and conversation. There also Broadcast Satellites, Scientific satellites, Rescue Satellites, Earth Observation Satellites and Military satellites (usually very confidential).
In short, there are endless Satellites with endless applications for numerous uses.
Sunday, September 19, 2010
Systems that have brought the world together
It is satellite communication systems that make it possible for someone travelling on a cruise in the middle of the ocean to be in touch with their family back home no matter where they are in the world. Sending satellites into orbit has revolutionized communications throughout the world. SatCom systems have succeeded in connecting all corners of the world to each other with relatively low cost.
A science fiction writer in 1945 wrote a pretty accurate prophecy of satellite orbiting and how it would provide television and microwave coverage to the entire planet. The first satellite was sent to space over 10 years later in 1957. Until the early 70s, satellites were mainly used for telephone and television signal transmissions.
Evolution of satellite communication systems
The question is, though, did this pre-satellite writer foresee the extent to which satellite communication systems would revolutionize how we communicate with each other?
Even in the beginning of satellites it was hard to tell where things would go because the cost was high and the results were not impressive. This was because the launcher and satellite costs were high, the satellite’s lifespan was short and it had a relatively small ability to hold information.
But over the years, SatCom systems have evolved a lot. So, in 1945 it had to be a science fiction writer who foresaw SatCom systems. And even he could not tell to what extent we would become a world reliant on the quick communication that satellites provide.
But we have come to rely on it because it offers the possibility of broadcasting, a wide bandwidth and easy and rapid set up.
These factors have made satellite communication very effective.
The future of satellite communication systems
Today, in the case of applications that require a large number of antennas, despite the steep cost of launching a satellite into orbit, the savings on ground equipment often more than the launching satellites for SatCom systems.
But who would have thought that we would all come to rely on this technology so heavily? The technology has come very far and it continues to evolve. The question now is what is the future of satellite communication systems? How will we be using it in twenty years from now?
A science fiction writer in 1945 wrote a pretty accurate prophecy of satellite orbiting and how it would provide television and microwave coverage to the entire planet. The first satellite was sent to space over 10 years later in 1957. Until the early 70s, satellites were mainly used for telephone and television signal transmissions.
Evolution of satellite communication systems
The question is, though, did this pre-satellite writer foresee the extent to which satellite communication systems would revolutionize how we communicate with each other?
Even in the beginning of satellites it was hard to tell where things would go because the cost was high and the results were not impressive. This was because the launcher and satellite costs were high, the satellite’s lifespan was short and it had a relatively small ability to hold information.
But over the years, SatCom systems have evolved a lot. So, in 1945 it had to be a science fiction writer who foresaw SatCom systems. And even he could not tell to what extent we would become a world reliant on the quick communication that satellites provide.
But we have come to rely on it because it offers the possibility of broadcasting, a wide bandwidth and easy and rapid set up.
These factors have made satellite communication very effective.
The future of satellite communication systems
Today, in the case of applications that require a large number of antennas, despite the steep cost of launching a satellite into orbit, the savings on ground equipment often more than the launching satellites for SatCom systems.
But who would have thought that we would all come to rely on this technology so heavily? The technology has come very far and it continues to evolve. The question now is what is the future of satellite communication systems? How will we be using it in twenty years from now?
Thursday, September 16, 2010
From genesis to today
The beginning and development of satellite communication systems
The goal of satellite communication systems is to reach progressively higher ranges and capabilities at the lowest cost possible. During the Second World War, two new technologies really took off: missiles and microwaves.
Learning how to integrate these two techniques together eventually led to satellite communications systems. The first artificial satellite was launched into space in 1957.
That marked the beginning of the space era. Today, there is a very wide use of satellite communication without us even realizing it. Satellite communication has become an amazing tool, providing an extremely wide variety of services.
In the beginning, although satellites were a great solution for connecting two long-distance points, their weakness was that extremely pricey earth stations were necessary to complete the system. Over the years, though, satellites have become larger and stronger which has made it possible to install more earth stations smaller in size.
This helps facilitate one of the most important things that satellites can do and that is to send and/or receive information to/from more than one earth station simultaneously.
Today’s uses of satellite communication systems
For many types of communications, satellite communication systems have, to a large extent, taken over. There are three properties of satellite systems that for the most part do not exist in terrestrial systems and make satellite communication very functional: the possibility of broadcasting; a wide bandwidth; and easy and fast setup and configuration.
As mentioned above, the transmission can happen from one transmitter to a large number of receivers or from a large number of stations to a single central station, also called a hub. Because satellites don’t only send signals but receive as well, they have taken the television experience to a whole other level.
Television has become an interactive experience where the user can also send information with their preferences. Satellite communication systems are also very useful in mobile communications. Since the 1970s satellites have been used for telephone, data communication and distress signal services on ships and planes.
Regarding mobile and personal communication, cellular and terrestrial personal communication is very widely used. But even so, there are still large areas not covered by wireless terrestrial systems.
These are perfect opportunities for satellite communication to fill the gap. It’s fascinating to see how the technology has developed from microwaves and missiles to almost immediate communication world-wide.
The goal of satellite communication systems is to reach progressively higher ranges and capabilities at the lowest cost possible. During the Second World War, two new technologies really took off: missiles and microwaves.
Learning how to integrate these two techniques together eventually led to satellite communications systems. The first artificial satellite was launched into space in 1957.
That marked the beginning of the space era. Today, there is a very wide use of satellite communication without us even realizing it. Satellite communication has become an amazing tool, providing an extremely wide variety of services.
In the beginning, although satellites were a great solution for connecting two long-distance points, their weakness was that extremely pricey earth stations were necessary to complete the system. Over the years, though, satellites have become larger and stronger which has made it possible to install more earth stations smaller in size.
This helps facilitate one of the most important things that satellites can do and that is to send and/or receive information to/from more than one earth station simultaneously.
Today’s uses of satellite communication systems
For many types of communications, satellite communication systems have, to a large extent, taken over. There are three properties of satellite systems that for the most part do not exist in terrestrial systems and make satellite communication very functional: the possibility of broadcasting; a wide bandwidth; and easy and fast setup and configuration.
As mentioned above, the transmission can happen from one transmitter to a large number of receivers or from a large number of stations to a single central station, also called a hub. Because satellites don’t only send signals but receive as well, they have taken the television experience to a whole other level.
Television has become an interactive experience where the user can also send information with their preferences. Satellite communication systems are also very useful in mobile communications. Since the 1970s satellites have been used for telephone, data communication and distress signal services on ships and planes.
Regarding mobile and personal communication, cellular and terrestrial personal communication is very widely used. But even so, there are still large areas not covered by wireless terrestrial systems.
These are perfect opportunities for satellite communication to fill the gap. It’s fascinating to see how the technology has developed from microwaves and missiles to almost immediate communication world-wide.
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