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Radio is the wireless transmission of signals, by modulation of electromagnetic waves with frequencies below those of light.
Radio waves
Radio waves are a form of electromagnetic radiation, created whenever a charged object (in normal radio transmission, an electron) accelerates with a frequency that lies in the radio frequency (RF) portion of the electromagnetic spectrum. In radio, this acceleration is caused by an alternating current in an antenna. Radio frequencies occupy the range from a few tens of hertz to a few hundred gigahertz.
| ELF - SLF - ULF/VF - VLF - LF/LW - MW - HF/SW - VHF - UHF - SHF - EHF Electromagnetic radio spectrum |
Electromagnetic spectrum and diagram of radio transmission of an audio signal.
Electromagnetic radiation travels (propagates) by means of oscillating electromagnetic fields that pass through the air and the vacuum of space equally well, and does not require a medium of transport (such as the aether). When radio waves pass an electrical conductor, the oscillating electric or magnetic field (depending on the shape of the conductor) induces an alternating current and voltage in the conductor. This can be transformed into audio or other signals that carry information. The word 'radio' is used to describe this phenomenon, and television, radio, radar, and cell phone transmissions are all classed as radio frequency emissions.
More on [ Radio ]
World :: Stations
Radio :: Regional and Ethnic
Internet :: Radio
Hawaii :: United States
Audio webcast makes your radio live to your listeners 24 Hrs whether they are in their Car, Office, Home or a cyber cafe. Cool! Isn't it so?
livestreampro (LiveStreamPro.com) Mon, 28 Dec 2009 05:50:22 -0000
Audio webcast makes your radio live to your listeners 24 Hrs whether they are in their Car, Office, Home or a cyber cafe. Cool! Isn't it so?
Nieuw blogbericht: OOG Radio besluit jaar met Top 1066 en Super 106 http://bit.ly/8EzlBv
jornagterberg (Jorn Agterberg) Mon, 28 Dec 2009 05:50:19 -0000
Nieuw blogbericht: OOG Radio besluit jaar met Top 1066 en Super 106 http://bit.ly/8EzlBv
Now playing "Blank & Jones - Lazy Life.(Radio Edit)". #woedfm #dance #house #handsup #nowplaying
WoEDfm_Bot (WoED.fm Tacks) Mon, 28 Dec 2009 05:50:17 -0000
Now playing "Blank & Jones - Lazy Life.(Radio Edit)". #woedfm #dance #house #handsup #nowplaying
I take it @jambajim and @glambert696969 both called in to the radio show? Please tell me it was recorded.
kodachrome621 (Claire) Mon, 28 Dec 2009 05:50:16 -0000
I take it @jambajim and @glambert696969 both called in to the radio show? Please tell me it was recorded.
Wrestling radio tweeted that Smackdown in danger of being pulled off the air and @MetalEmpress RT
legacycenahardy (Nomi Bouckley) Mon, 28 Dec 2009 05:50:11 -0000
Wrestling radio tweeted that Smackdown in danger of being pulled off the air and @MetalEmpress RT
@JY_1089 lmao! Just as long as you know I meant "playin" on the radio lmao!
CollegeByrd (Guy #1) Mon, 28 Dec 2009 05:50:05 -0000
@JY_1089 lmao! Just as long as you know I meant "playin" on the radio lmao!
Aloha2go RadioShow - Current and archived Hawaiian music show, serving to share real Hawaiian music with the world. RealPlayer required for listening.
Meta Description: [ Aloha2go.com podcast hawaiian music Jam sampler - Sponsored by Hawaii's in Las Vegas toll free 1-877-398-1688 ]
KINE-FM 105 - Hawaiian adult contemporary station with streaming audio. Music news, reviews, artist information, and event listings.
Meta Description: [ This web site, for Hawaiian 105 KINE FM 105.1, features internet audio, online radio, movie showtimes, music news, entertainment news, concert tour information, and a local event calendar all geared for the Honolulu, Hawaii area. A Cox Radio site playing Hawaiian Adult Contemporary AC music, the... ]
Mele Mikini, The Hawaiian Music Machine - A guide to Hawaiian music radio stations including programming notes and required software.
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