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Sound and radio waves are different phenomena. Sound consists of pressure variations in matter, such as air or water. Sound will not travel through a vacuum. Radio waves, like visible light, infrared, ultraviolet, X-rays and gamma rays, are electromagnetic waves that do travel through a vacuum. When you turn on a radio you hear sounds because the transmitter at the radio station has converted the sound waves into electromagnetic waves, which are then encoded onto an electromagnetic wave in the radio frequency range (generally in the range of 500-1600 kHz for AM stations, or 86-107 MHz for FM stations). Radio electromagnetic waves are used because they can travel very large distances through the atmosphere without being greatly attenuated due to scattering or absorption. Your radio receives the radio waves, decodes this information, and uses a speaker to change it back into a sound wave. An animated illustration of this process is given below (mouse-over the images for animations).
done by khalil 1208
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Function of communication?
The function of communication is to allow for the exchange of ideas. Communication is designed to share ideas and promote understanding.
What is mobile radio communication?
Mobile radio communication is performed by utilizing a battery-powered radio in the field in order to transmit messages to a fixed home base receiver.
What are the communication in the 1920s?
communication in the 1920's include: mail, radio and newspapers. They did not have tv's or computers. communication in the 1920's include: mail, radio and newspapers. They did not have tv's or computers.
What is communication net work?
A communication network is a collection of communication devices. They may be connected wirelessly or by wire. Examples include - A Ham Radio Net, A military radio net, or a family radio net, Cellular Telephones, Telephones, etc.
What are the elements of radio communication system?
There are many elements of a radio communication system. These elements include a transmitter, radio frequency oscillator, modulator, transmitting ariel, receiving ariel, demodulator, and amplifier.
In what ways are radio waves utilized on Earth?
Radio waves are used on Earth for communication, such as broadcasting radio and television signals, transmitting data wirelessly, and enabling technologies like Wi-Fi and cell phones to function.
What is function of antenna?
An antenna is an electric device that involves two way communication. It converts electricity into radio waves and vice versa.
What function does the receiving antenna provide in radio communication?
The receiving antenna in radio communication serves to capture electromagnetic waves transmitted through the air. It converts these radio frequency signals into electrical signals, which can then be processed and decoded by a receiver. The efficiency and design of the receiving antenna play a crucial role in determining the quality and strength of the received signal, impacting overall communication clarity and reliability.
What is the use of radio communication?
it is used for the communication
Why is the ionosphere important for communication?
It is what radio waves bounce off of.
What practical function is provided by the ionosphere?
The ionosphere enables long-distance radio communication by reflecting radio waves back to the Earth's surface. It also helps in forming the Earth's protective ozone layer by absorbing harmful solar radiation. Additionally, it plays a role in influencing global weather patterns and climate.
Function of oral communication?
The functions of speech communication are: Referential Phatic Expressive Interactional Transactional
Function of communication?
The function of communication is to allow for the exchange of ideas. Communication is designed to share ideas and promote understanding.
What is radio communication?
Radio communication is the transmission of information through radio waves between two or more devices. It is used for various purposes such as broadcasting, two-way communication like walkie-talkies and cell phones, and communication with satellites and spacecraft. Radio communication relies on frequencies within the radio spectrum to transmit signals over short or long distances.
What is mobile radio communication?
Mobile radio communication is performed by utilizing a battery-powered radio in the field in order to transmit messages to a fixed home base receiver.
Why does CD player register E23 on Pontiac sunfire?
E23 Communication Error: There is a vehicle/radio communication problem or an inter radio communication problem, Correction: Disconnect battery voltage to the radio and then reconnect after a few minutes.
What are the communication in the 1920s?
communication in the 1920's include: mail, radio and newspapers. They did not have tv's or computers. communication in the 1920's include: mail, radio and newspapers. They did not have tv's or computers.
