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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!
What else can I help you with?
What is the speed of a satellite signal?
The speed of a satellite signal is approximately the speed of light, which is about 299,792 kilometers per second. This means that signals transmitted from a satellite to Earth or vice versa travel at this high speed.
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 do satallites get signals from earth?
Satellites receive signals from Earth using antennas that are pointed towards the ground. The signals are sent from ground stations and relayed to the satellite. The satellite then processes the signal and can transmit it back to Earth or to another satellite.
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.
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 are satellite pictures of earth and of other planets made and transmitted?
Satellite pictures of Earth and other planets are captured by cameras or sensors onboard spacecraft and satellites in orbit. These images are then transmitted back to Earth using radio waves or other communication methods. Data is received by ground stations that can decode and process the information to create the images we see.
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
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.
