frequency modulation (FM) Form of radio transmission. It is the variation of the frequency of a transmitted radio carrier wave by the signal being broadcast. The technique makes radio reception fairly free from static interference and, although restricted in range to receivers in line-of-sight of the transmitter, has become the most favoured transmission method. See also amplitude modulation (AM)
fre·quen·cy mod·u·la·tion (abbr.: FM) • n. the modulation of a radio or other wave by variation of its frequency, esp. to carry an audio signal. Often contrasted with amplitude modulation. ∎ the system of radio transmission using such modulation.
FM or f.m. Abbrev. for frequency modulation. See modulation.
FM Abbreviation of frequency modulation
More From encyclopedia.com
radio- , radio- • comb. form 1. denoting radio waves or broadcasting: radio-controlled radiogram. 2. Physics connected with rays, radiation, or radioactivity:… Radio Astronomy , Matter in the universe emits radiation (energy) from all parts of the electromagnetic spectrum, the range of wavelengths produced by the interaction… Grote Reber , Grote Reber Grote Reber Grote Reber (born 1911) was a radio engineer who became interested in radio astronomy as a hobby. He built the first radio te… Radio , In September of 1895, Guglielmo Marconi, a young Italian inventor, pioneered wireless telegraphy when he transmitted a message to his brother, who wa… Radio waves , radio telescope Instrument used to collect and record radio waves from space. The basic design is the large single dish or parabolic reflector, up to… Martin Sir Ryle , Ryle, Martin RYLE, MARTIN (b. Brighton, Sussex, United Kingdom, 27 September 1918; d. Cambridge, Cambridgeshire, United Kingdom, 14 October 1984), ra…
About this article
All Sources -
Updated Aug 08 2016 About encyclopedia.com content Print Topic
You Might Also Like