Frequency modulator - Hutchinson encyclopedia article about Frequency modulator Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,760,071,094 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

frequency modulation
(redirected from Frequency modulator)

    Also found in: Encyclopedia, Wikipedia 0.07 sec.

frequency modulation

Enlarge picture
In FM radio transmission, the frequency of the carrier wave is modulated, rather than its amplitude (as in AM broadcasts). The FM system is not affected by the many types of interference which change the amplitude of the carrier wave, and so provides better quality reception than AM broadcasts.

Variation of the frequency of a carrier wave in accordance with the signal to be transmitted. In FM the frequency of the carrier wave varies in accordance with the signal being transmitted. Its advantage over AM (amplitude modulation) is its better signal-to-noise ratio. It was invented by the US engineer Edwin Armstrong.



How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
 Email
Feedback
?Sign in SSL protected
Email:
Password:
Register

? Mentioned in ? References in periodicals archive
 
It includes an integrated MPEG-2 audio/video decoder, an ARM920 32-bit RISC processor, a two-dimensional graphics accelerator, TV encoder, QPSK demodulator, channel 3/4 radio frequency modulator, a video/graphics display compositing controller, and a set of peripheral input/output ports for STB front- and back-panel connectors.
Conexant's Satellite System Solution Powers New Humax Set-Top Box; ... by Business Wire
Ferrantino added, "In June, we received word from one of the largest microwave telecommunications companies that we qualified a frequency modulator, our first major Integrated Sub System win.
Valpey-Fisher Corporation Reports Second Quarter Results by Business Wire
Alliance's ASM3P2779 is a low-power, versatile spread spectrum frequency modulator specifically designed for the mobile market and targets PDAs, cell phones, portable MP3 players, notebooks, as well as video and imaging applications.
Alliance Semiconductor Introduces Industry's Smallest Footprint ... by Business Wire
More results
 
Hutchinson browser? ? Full browser
 
 
Hutchinson Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a Terms of Use.