Multimedia Applications Internet Technologies and Applications.
Applications
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Transcript of Applications
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Applications
Radio waves and Broadcasting waves
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A kind of electromagnetic light energy with wavelengths anywhere from a few centimeters to several kilometers long.
Radio waves can be used to carry signals to and from spacecraft and Earth.
Radio waves
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radio waves are the longest out of all the waves in the electromagnetic spectrum
The shortest radio waves are about 100 yards.
Radio wavelengths
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*Radio frequencies represent a subsection of electromagnetic energy found on the energy spectrum. *Signal strength differentiates the different types of radio waves, and all radio waves fall between 1mm and 100km in distance, and 3 KHz to 300 GHz in frequency.
Frequencies
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Both radio and light waves travel at the same speed
260,000 miles per second.
How Radio and light waves relate
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AM/FM radio
AM- broadcasted with a single specific carrier frequency.
*more range
*1 MHz, 300 m wavelength
FM - broadcasted with a specific amplitude.
*better quality
*100 MHz, 3 m wavelength
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"AM/FM Radios ." Physics Forums. vBulletin , n.d. Web. 2 Mar. 2011. nod
<http://www.physicsforums.com/showthread.php?t=132133>.