Sunday, October 31, 2010

Satellite Communication

What is Satellite?

In general, a satellite is anything that orbits something else,
for example, the moon orbits the earth.
In a communications context, a satellite is a specialized wireless receiver/transmitter that is launched by a rocket and placed in orbit around the earth.
There are hundreds of satellites currently in operation.
They are used for such diverse purposes as:

1) Weather forecasting.
2) Television broadcast.
3) Radio communications.
4) Internet communications.
5) Global Positioning System (GPS).