Full Text


Douglas Ferguson

Subject Communication and Media Studies » Communication Studies
Media System » Broadcasting

DOI: 10.1111/b.9781405131995.2008.x


Radio is a media technology that permits one person or organization to communicate with many receivers over large distances via the electromagnetic spectrum and radiated electrons. Listening to radio is possible by modulating voice (→  Broadcast Talk ) or music (→  Popular Music ) onto a radio wave that transmits at a predetermined signal. A radio receiver is tuned to the modulated carrier wave broadcasting at that frequency and the radio circuitry amplifies the voice or music, after discarding the carrier frequency wave (→  Radio Technology ; Information and Communication Technology, Development of ). Radio is a ubiquitous and inexpensive means of mass communication. Audiences need not be literate, making radio accessible to everyone with the most basic language skills, or in the case of music, no language at all (→  Exposure to Radio ). Depending on the characteristics of the radio frequency, programs can be heard around the world (→  International Radio ), but are typically limited to a small geographic area. The device that became known as the radio took its name from radio waves, the band of frequencies that made the technology possible. Before that, it was more commonly known as “the wireless” because it operated without a physical connection. Radio was demonstrated by Guglielmo Marconi in 1895, in work based on the earlier theory of Heinrich Hertz and ideas by Nikola Tesla. ... log in or subscribe to read full text

Log In

You are not currently logged-in to Blackwell Reference Online

If your institution has a subscription, you can log in here:


     Forgotten your password?

Find out how to subscribe.

Your library does not have access to this title. Please contact your librarian to arrange access.

[ access key 0 : accessibility information including access key list ] [ access key 1 : home page ] [ access key 2 : skip navigation ] [ access key 6 : help ] [ access key 9 : contact us ] [ access key 0 : accessibility statement ]

Blackwell Publishing Home Page

Blackwell Reference Online ® is a Blackwell Publishing Inc. registered trademark
Technology partner: Semantico Ltd.

Blackwell Publishing and its licensors hold the copyright in all material held in Blackwell Reference Online. No material may be resold or published elsewhere without Blackwell Publishing's written consent, save as authorised by a licence with Blackwell Publishing or to the extent required by the applicable law.

Back to Top