Because these satellites are further than earth from the first group there is a need for tracking systems down here on earth in order to keep track of these satellites. This is why viewers of a cable channel will see it a few seconds before the viewers of a satellite channel
The moon is a natural satellite but today when we talk about satellites we mean human made machines which orbit around earth for a variety of purposes.
3 kinds of Satellites
Satellites orbit around the earth. Usually there is a need for 3 different GEO satellites to cover the whole earth (not taking into account the polls).
Geostationary earth Orbit (GEO) this satellite orbits earth at a distance of 35,60 km from earth and orbits earth at the same speed our planet revolves around itself. Satellites can be used for military purposes, weather forecast, navigation (GPS), communication (data transmission), internet and much more. When it is received at the satellite, the signal is transmitted to another satellite using a process called turnaround, or it is transmitted back down to earth using a process called downlink. 28,000 km per hour and can finish one orbit Cable connector Manufacturers around the earth in about an hour and a half.
One of the most frequent uses of satellites is to transmit TV channels around the world. The signal is sent up to the satellite with a process called uplink. Their orbit patter is oval. There are 3 kinds of satellites classified by the orbit distance from earth. The moon is actually a satellite orbiting around earth. because it is so close to earth it needs to orbit at a fast speed in order to prevent from the earth’s gravity to pull it down.
How do satellites transmit TV channels?
Television programs origin from a broadcasting studio, it could be a live broadcast or a taped TV program.What are Satellites?
Satellites are small object orbiting around bigger objects. This means that the satellite is stationary above the same position all the time. When a signal is down linked back to earth it is received by a satellite dish which we all know. The LEO satellites move at a speed approx. These satellites are used mainly for constant communication or weather rg59 coaxial cable Manufacturer satellite services.
Because of the whole process of up linking and down linking, there is a transmission delay of a few seconds.
Low earth orbit (LEO) this satellite orbits earth at a distance of 160-480 km. these are mainly communication satellites above the north/south poles. The program is translated into a signal.
Satellite services – What are satellites used for?
There is a huge variety of satellite services.
Medium earth orbit (MEO) this satellite orbits earth at a distance of 9,000-18,000 km.