Power subsystems comprised of solar panels that charge batteries to provide power to the communications subsystem.
The communications subsystem handles all transmit and receive functions. This subsystem receives signals from earth, amplifies the signal received, and then transmits the signal to another satellite or back to earth.
Thermal control subsystem keeps active parts of a satellite cool enough function properly by venting excessive heat into space.
Attitude control subsystem interacts with the propulsion subsystem to keep a satellite in its proper position. If a satellite falls out of position any data, television, or telephone calls it is transmitting or receiving will be interrupted.
Telemetry and Command subsystem allows operators to monitor and control the satellite from the ground.
The Ground Technology
Different companies and organizations around the globe use communication satellites. Governments, commercial entities, and individuals use satellite services. For example, we have satellite television from companies like DirecTV, satellite phone service, global positioning systems, imaging, and internet services. To have the ability to access the satellites and services available requires specialized equipment to interact with the satellites. The most important piece of equipment for any satellite service is an antenna, you must have an uplink antenna to send anything to a satellite and a downlink antenna to receive anything.
Future Trends
As with any technology that becomes available to everyone, there is always the chance that it could be replaced by something superior or cheaper. This has a lot of effect on the way that things are invented and if the item actually comes into production or not. With satellite communications the major problem that is keeping it from blowing up in the industry is that it is extremely expensive to set up. This can cause the private owned sector to balk at obtaining satellite communications. As of now there are many different uses for satellites, one of which is Direct TV, where satellites are used to program your TV and even get you high speed internet(though this feature is not out yet).
One of the future technologies that is up and coming in the world today is laser technology. Laser technology is extremely expensive and has many flaws in the current technology. There are many different types of lasers out today, some can burn holes in objects, and some can carry data and voice across a set distance. You can even see some by the naked eye, and some are invisible. Below is a chart explaining which lasers you can see and which lasers you cannot see.
Power subsystems comprised of solar panels that charge batteries to provide power to the communications subsystem.
The communications subsystem handles all transmit and receive functions. This subsystem receives signals from earth, amplifies the signal received, and then transmits the signal to another satellite or back to earth.
Thermal control subsystem keeps active parts of a satellite cool enough function properly by venting excessive heat into space.
Attitude control subsystem interacts with the propulsion subsystem to keep a satellite in its proper position. If a satellite falls out of position any data, television, or telephone calls it is transmitting or receiving will be interrupted.
Telemetry and Command subsystem allows operators to monitor and control the satellite from the ground.
The Ground Technology
Different companies and organizations around the globe use communication satellites. Governments, commercial entities, and individuals use satellite services. For example, we have satellite television from companies like DirecTV, satellite phone service, global positioning systems, imaging, and internet services. To have the ability to access the satellites and services available requires specialized equipment to interact with the satellites. The most important piece of equipment for any satellite service is an antenna, you must have an uplink antenna to send anything to a satellite and a downlink antenna to receive anything.
Future Trends
As with any technology that becomes available to everyone, there is always the chance that it could be replaced by something superior or cheaper. This has a lot of effect on the way that things are invented and if the item actually comes into production or not. With satellite communications the major problem that is keeping it from blowing up in the industry is that it is extremely expensive to set up. This can cause the private owned sector to balk at obtaining satellite communications. As of now there are many different uses for satellites, one of which is Direct TV, where satellites are used to program your TV and even get you high speed internet(though this feature is not out yet).
One of the future technologies that is up and coming in the world today is laser technology. Laser technology is extremely expensive and has many flaws in the current technology. There are many different types of lasers out today, some can burn holes in objects, and some can carry data and voice across a set distance. You can even see some by the naked eye, and some are invisible. Below is a chart explaining which lasers you can see and which lasers you cannot see.
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