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Frequency modulation (view source)
Revision as of 01:55, December 11, 2014
, 01:55, December 11, 2014no edit summary
'''Frequency modulation''' ([[FM]]) is a signaling method that varies the carrier [[frequency]] in proportion to the [[amplitude]] of the modulating signal.
'''Frequency modulation''' ([[FM]]) is a signaling method that varies the carrier [[frequency]] in proportion to the [[amplitude]] of the modulating signal.
Frequency modulation is most commonly used in [[radio]], [[amateur radio]], [[radar]], telemetry, [[seismic]] prospecting, and in the monitoring of [[baby|newborn]]s for [[seizure]]s via [[EEG]].<ref>B. Boashash, editor, “Time-Frequency Signal Analysis and Processing – A Comprehensive Reference”, Elsevier Science, Oxford, 2003; ISBN 0-08-044335-4</ref>
==See Also==
==See Also==
* '''[[Radio]]:''' [[Radio waves]], [[Electromagnetic wave]], [[Radio frequency]], [[AM/FM]], [[modulation]], [[amplitude]], [[amplitude modulation]] ([[AM]]), [[frequency modulation]] ([[FM]]), or [[single-sideband modulation]] ([[SSB]]), [[Shortwave]], [[Two-way radio]], [[Portable radio]], [[Walkie-talkie]], [[Citizens band radio]], [[Family Radio Service]] ([[FMS]]), [[General Mobile Radio Service]] ([[GMRS]]), [[Multi-Use Radio Service]] ([[MRS]]), [[Motorola]], [[Marine VHF radio]],
* '''[[Radio]]:''' [[Radio waves]], [[Electromagnetic wave]], [[Radio frequency]], [[AM/FM]], [[modulation]], [[amplitude]], [[amplitude modulation]] ([[AM]]), [[frequency modulation]] ([[FM]]), or [[single-sideband modulation]] ([[SSB]]), [[Shortwave]], [[Two-way radio]], [[Portable radio]], [[Walkie-talkie]], [[Citizens band radio]], [[Family Radio Service]] ([[FMS]]), [[General Mobile Radio Service]] ([[GMRS]]), [[Multi-Use Radio Service]] ([[MRS]]), [[Motorola]], [[Marine VHF radio]], [[History of radio]]
* '''[[Amateur Radio]]:''' [[Emergency communications]], [[Amateur radio operator]], [[Call sign]], [[Amateur radio repeater]], [[Base station]], [[Amateur radio frequency allocations]], [[Amateur radio high bands]], [[Amateur radio station]], [[UHF]], [[VHF]], [[HF]], [[Morse code]], [[Telegraph]], [[Mobile rig]], [[QSL card]]
* '''[[Amateur Radio]]:''' [[Emergency communications]], [[Amateur radio operator]], [[Call sign]], [[Amateur radio repeater]], [[Base station]], [[Amateur radio frequency allocations]], [[Amateur radio high bands]], [[Amateur radio station]], [[UHF]], [[VHF]], [[HF]], [[Morse code]], [[Telegraph]], [[Mobile rig]], [[QSL card]]
* '''[[Antenna (radio)]]:''' [[Antenna theory]], [[Portable operation (amateur radio)]], [[Dipole antenna]], [[Coaxial cable]], [[Balun]], [[Packet radio]], [[Propagation]], [[Protecting your HT Antenna]]
* '''[[Antenna (radio)]]:''' [[Antenna theory]], [[Portable operation (amateur radio)]], [[Dipole antenna]], [[Coaxial cable]], [[Balun]], [[Packet radio]], [[Propagation]], [[Protecting your HT Antenna]]
* '''Radio Standards Organization:''' [[FCC]], [[American Radio Relay League]], [[International Telecommunication Union]] ([[ITU]])
* '''Radio Standards Organization:''' [[FCC]], [[American Radio Relay League]], [[International Telecommunication Union]] ([[ITU]])
==Further Reading==
* A. Bruce Carlson. ''Communication Systems, 4th edition.'' McGraw-Hill Science/Engineering/Math. 2001. ISBN 0-07-011127-8, ISBN 978-0-07-011127-1.
* Gary L. Frost. ''Early FM Radio: Incremental Technology in Twentieth-Century America.'' Baltimore: Johns Hopkins University Press, 2010. ISBN 0-8018-9440-9, ISBN 978-0-8018-9440-4.
* Ken Seymour, [[AT&T]] [[Wireless]] (Mobility). ''Frequency Modulation, The Electronics Handbook, pp 1188-1200, 1st Edition, 1996. 2nd Edition, 2005'' CRC Press, Inc., ISBN 0-8493-8345-5 (1st Edition).
==References==
{{reflist|2}}