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Transportation, Telecommunications → Radio

UN Sustainable Development Goals

GOAL 9: Industry, Innovation and Infrastructure


Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by a radio receiver connected to another antenna. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing and other applications. In radio communication, used in radio and television broadcasting, cell phones, two-way radios, wireless networking and satellite communication among numerous other uses, radio waves are used to carry information across space from a transmitter to a receiver, by modulating the radio signal in the transmitter. In radar, used to locate and track objects like aircraft, ships, spacecraft and missiles, a beam of radio waves emitted by a radar transmitter reflects off the target object, and the reflected waves reveal the object's location. In radio navigation systems such as GPS and VOR, a mobile receiver receives radio signals from navigational radio beacons whose position is known, and by precisely measuring the arrival time of the radio waves the receiver can calculate its position on Earth. In wireless radio remote control devices like drones, garage door openers, and keyless entry systems, radio signals transmitted from a controller device control the actions of a remote device.

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Organizations relating to Radio

World Congress of Acupuncture
International Symposium on Multiparticle Dynamics
World Conference on Urine Therapy
International Federation of Societies of Cosmetic Chemists / New York NY, USA / Est. 1959
International Federation of Societies for Microscopy / Oxford, UK / Est. 1951
International Society for Neutron Capture Therapy / Idaho Falls ID, USA / Est. 1983
European Children\'s Film Association / Brussels, Belgium / Est. 1988
European Life Sciences Forum / Heidelberg, Germany / Est. 1999
Association of the European Self-Medication Industry / Brussels, Belgium / Est. 1964
Pediatric Dentistry Association of Asia / Quezon City, Philippines / Est. 1997
Convention on the Law Applicable to International Sales of Goods / The Hague, Netherlands / Est. 1955
SAARC Surgical Care Society / Peradeniya, Sri Lanka / Est. 1996
Farmacéuticos Mundi / Alfafar, Spain / Est. 1991
Caribbean Electric Utility Services Corporation / Castries, St Lucia / Est. 1988
Nordic Society for Pediatric Hematology and Oncology / Stockholm, Sweden
Save a Family Plan / London ON, Canada / Est. 1965
International Irradiation Association / Swindon, UK / Est. 2004
Asociación Interamericana de Empresas de Telecomunicaciones / Montevideo, Uruguay / Est. 1982
European ECO Forum / Brussels, Belgium / Est. 1993
Solidarité homéopathie / Montpellier, France / Est. 1994
Food not Bombs / Santa Cruz CA, USA / Est. 1980
Fellowship of European Broadcasters / Potters Bar, UK / Est. 1991
International PhotoTherapy Association / Est. 2005
World Heritage Fund / Paris, France / Est. 1976
International Institute of Holistic Medicine / Milwaukee WI, USA

View all profiles (117 total) in the Yearbook of International Organizations

World Problems relating to Radio

From the Encyclopedia of World Problems and Human Potential

Broadcasting propaganda
Broadcasting censorship
Electronic interference
Clandestine propaganda broadcasting

Action Strategies relating to Radio

From the Encyclopedia of World Problems and Human Potential

Coordinating two way amateur radio communication
Developing wireless communications technology
Advancing radio art
Intercepting high frequency radio signals
Establishing radio communication
Educating by radio
Developing marine radiocommunications
Exchanging among radio
Operating radio stations
Producing television and radio programmes using interactive multimedia methods
Spacing radiocommunications
Freeing radios
Developing radio
Developing digital radio broadcasting
Producing TV and radio programmes for environmental awareness
Educating by correspondence
Regulating use of radio frequencies
Coordinating radio frequencies
Distributing radio frequencies
Broadcasting in the public interest
Broadcasting radio propaganda across national boundaries

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