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On a fiber-optic line: light. That's the only kind of energy that passes through the fiber. On wires: electrical signals in the form of AC currents. Without wires or anything else to carry the info: electromagnetic waves, such as for example -- radio, TV, microwave, infra-red or visible light beam. Some advantages of electromagnetic signalling are: -- easy to generate, and to impress information onto it -- easy to radiate and detect over great distances using small amounts of power -- easy to focus the available power in the desired direction of communication -- easy to separate the signal you want out of the flood of signals from thousands of other people all using the same technology to communicate -- no expense or physical infrastructure required between the end-points (running fiber via satellites would be difficult and expensive)
What else can I help you with?
What is the name of satellites used for intercontinental communication?
Comsat
How are satellites used for mobile communication?
difficult to say
Do computers use radio waves?
Absolutely. Computing is highly integrated into radio frequency (RF) type communications. Examples of RF integration include Bluetooth, WiFi, and RF peripherals such as the mouse and keyboard.
The development of communication from world war 2 till today?
Communication since WW2 has been enhanced by satellites, optical fibre cables, the Internet, WWW software and cheap computers.
What method of signal transmission uses radio waves to carry signals?
The analog method of signal transmission uses radio waves to carry signals. Digital transmission involves the use of satellites to transmit signals.
Do satellites use electromagnetic waves for communication?
Yes. We call the waves "radio".
Which electromagnetic waves are used for communication in space?
Radio waves are predominantly used for communication in space due to their long wavelengths that enable them to travel long distances without much interference. These waves are able to penetrate Earth's atmosphere and travel through space to reach distant spacecraft and satellites.
What is frequency of a satellite wave?
I never heard of a "satellite wave". If you mean the radio waves used by satellites for communication - well, like all radio waves used for such purposes, there is probably a large range of waves they can use.
How are both radio waves and microwaves used for communication?
Radio waves and microwaves are both used for communication through technologies such as mobile phones, Wi-Fi routers, and satellites. Radio waves are commonly used for long-range communication, while microwaves are more often used for shorter-range communication and can carry higher data rates. Both types of waves are able to transmit information wirelessly by modulating their characteristics to encode data.
Why aren't ultraviolet waves not used to transmit signals to and from communication satellites?
Because they are of the highest frequencies in the known electromagnetic spectrum. This means their wavelength are very short, which means they will not travel very far, as opposed to low-frequency RF waves. In comparison, the same idea applies to vehicle taillights and why they're colored red (the color red has the longest wavelength in visible light and it will be visible even from a long distance).
Do television satellites use infrared waves to transmit?
Television satellites do not use infrared waves to transmit signals; instead, they primarily use radio waves, specifically in the microwave frequency range. These microwaves are effective for long-distance communication, allowing satellites to transmit audio and video data back to Earth. Infrared waves, while used in certain applications like remote controls and some optical communication systems, are not suitable for the large-scale transmission required by television broadcasting.
Are radio waves used to communicate with satellites?
Yes
What do electromagnetic waves do in the process of communication?
Electromagnetic waves are used in communication to carry information through the air or space. They transmit signals between devices like radios, cell phones, and satellites, allowing for the exchange of data and messages over long distances.
How are radio waves used for effective communication around the world?
Radio waves are used for effective communication around the world by transmitting information through radio frequency signals. These signals can travel long distances and penetrate obstacles, allowing for widespread communication. Radio technology relies on modulation techniques to encode information onto the radio waves, enabling communication between devices such as radios, cell phones, and satellites.
What type of wave is used to communicate with satellites?
Electromagnetic waves, specifically radio waves, are commonly used to communicate with satellites. These waves travel through the vacuum of space and can transmit information over long distances.
Which kinds of electromagnetic waves are used for communication?
Electromagnetic waves used for communication include radio waves, microwaves, and light waves (in the form of lasers). These waves are commonly used in technologies such as radio communication, satellite communication, Wi-Fi, and fiber optic communication.
What is the name of satellites used for intercontinental communication?
Comsat
