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How signal is transmitted to the satellite radio and receive back to earth?
Wiki User
∙ 14y ago
A satellite is like a mirror in the sky. Only instead of reflecting light, it "reflects" radio and television signals. There are receivers and transmitters in the satellite, so what it receives on one frequency (or channel) can be then re-transmitted back to earth on another frequency. Its like sending out signals from a tower that is many miles high to reach out to a bigger area. Only without the tower!
Wiki User
∙ 15y ago
Wiki User
∙ 12y agoYou have a dish installed outside your abode pointed in a southwestern direction. Depending on the number of satellites the dish needs to receiver signal from constitutes the size of the dish and the LNBs used. Once the dish is pointed and optimized to receive the strongest signal, the receiver is connected to the LNB via a coax cable.
The receiver has to be activated on the account and the programming dictates what channels you will receive.
Wiki User
∙ 11y agoSimple--satallites need line-of-sight between each other to broadcast their signals effectively to one another or to relay them to earth-bound receivers.
The bulk of the earth does not permit signals to be transmitted THROUGH the earth, so we need satallites to relay signals sent from the other side of the globe.
GPS global positioning systems also require THREE satallites to function, thus triangulation a precise position to a ground receiver.
Geo-syncronous satallites remain positioned over one exact spot on the earth's surface, allowing for a definate fix on positions being calculated
Wiki User
∙ 11y agoSatellites help in television transmission by accepting signals sent from the earth station, transmitting to a much wider area after boosting the signal.
Since these are sent out from about 25000 miles a much wider area is covered and with less obstructions. If the receiver dish is pointed in the correct direction and unobscured by building or trees, etc. a very clear signal can be received.
Wiki User
∙ 12y agothe radar in earth transmitted signal into space and bounce back to the earth because of ionosphere
Wiki User
∙ 14y agoone or more satellites can be used to relay signals that can not be sent by earth based transmitters due to the curvature of the earth.
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How satellite pictures of earth are made and transmitted?
Satellite pictures of Earth are taken by a camera mounted on a satellite in orbit, high above Earth's atmosphere. They are transmitted wirelessly over satellite signals, much like satellite TV.
How are satellite pictures of earth and other planets made and transmitted?
Satellite pictures are taken through the satellite and sent to Earth via satellite waves.
How are satellite pictures of earth and of other planets made and transmitted?
Satellite pictures are taken through the satellite and sent to Earth via satellite waves.
How active satellite differ from passive explain with an example?
active satellites are receives the transmitted signal from earth ,amplify the signal and transmit it. it is also called as transponders. but passive satellites just receive and transmit the signal.itac as the reflector
What is the earth surface where a satellite signal can be received?
Footprint
Why do signal of satellite TV disappear when it rain?
Satellite signals are transmitted from a satellite above the earth's atmosphere. To reach the satellite dish, they need to pass through the atmosphere. Normally, the signals pass without a problem but they can be affected by clouds and rain. Most satellite receivers receive enough signal even in times of atmospheric disturbance but extreme weather may disrupt the signal enough to prevent reception. If the problem is happening on a regular basis, it might be worth checking the alignment of the dish and the LNB (the receiver unit on the arm in front of the dish). If the dish is mis-aligned even by a very small amount, it will not receive a full strength signal so poor weather will affect the quality of the signal more than normal. Checking the alignment is a very quick job for a satellite installer (and much slower for most other people). If alignment doesn't help, it's time to check the cable from the dish to the receiver inside.
What are telecommunication links?
In satellite communication, up link refers to the signal traveling up to the satellite while down link refers to the signal coming from the satellite down to earth.
How do you receive satellite images?
Ummmm. Google earth.
What is a satellite signal?
It's the same information-carrying signal that you'd receive from any microwave station on a tower in a network carrying telephone, television, voice, data, navigation etc. from place to place, except that this microwave repeater happens to be in an artificial satellite that's orbiting the earth.
How is a communication satellite is used?
A communications satellite operates as a transceiver (TRANSmitter - reCEIVER). Signals from a base station on Earth are sent to a satellite receiver. The data is either stored for a period of time or sent immediately to a transmitter on the same satellite. The transmitters on satellites are positioned to transmit towards Earth or towards other satellites. A base station on Earth will receive the transmitted signals and pass them to land based equipment. As satellite signals rely on line of sight, they each have a range over which they can send signals. Too far round the Earth and the signal won't make it. That's why they can also transmit to other satellites before the signal is finally returned to Earth, far round the globe. The data carried by communication satellites is used for a wide variety of applications. Television, telephones, computer networks and far more are regularly sent to and from satellites.
What is the area of the Earth's surface where a satellite signal can be received?
The â??footprintâ?? is the area of the Earthâ??s surface where a satellite signal can be received. The footprint on Earth is determined by the footprint of the antennas on the satellites.
What is a communications satellite?
Satellite communication is when a signal gets sent to space, bounces off of a satellite, and comes back to Earth. This is a very common source of communication.
