Amateur radio (also called ham radio) is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication. The term "amateur" is used to specify persons interested in radio technique solely with a personal aim and without direct pecuniary interest, and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.).
The amateur radio service (amateur service and amateur satellite service) is established by the International Telecommunication Union (ITU) through the International Telecommunication Regulations. National governments regulate technical and operational characteristics of transmissions and issue individual stations licenses with an identifying call sign. Prospective amateur operators are tested for their understanding of key concepts in electronics and the host government's radio regulations. Radio amateurs use a variety of voice, text, image, and data communications modes and have access to frequency allocations throughout the RF spectrum to enable communication across a city, region, country, continent, the world, or even into space.
Amateur radio is officially represented and coordinated by the International Amateur Radio Union (IARU), which is organized in three regions and has at its members the national amateur radio societies which exist in most countries. According to an estimate made in 2011 by the American Radio Relay League, two million people throughout the world are regularly involved with amateur radio. About 830,000 amateur radio stations are located in IARU Region 2 (the Americas) followed by IARU Region 3 (South and East Asia and the Pacific Ocean) with about 750,000 stations. A significantly smaller number, about 400,000, are located in IARU Region 1 (Europe, Middle East, CIS, Africa).
Other articles related to "amateur radio, radio":
... CQ Amateur Radio organizes, adjudicates, and publishes the results of several annual radio competitions, including the CQ World Wide 160-meter Contest, the CQ World Wide WPX ... All of these contests allow participation by amateur radio operators in any country of the world ... It also is associated with a number of amateur radio awards, of which the best known is Worked All Zones ...
... Earth-Moon-Earth (EME) Internet Radio Linking Project (IRLP) Low Transmitter Power (QRP) Satellite (OSCAR- Orbiting Satellite Carrying Amateur Radio) ...
... de Radioaficionados (LPRA) (n English, Panamanian Amateur Radio League) is a national non-profit organization for amateur radio enthusiasts in Panama ... Key membership benefits of the LPRA include a QSL bureau for those amateur radio operators in regular communications with other amateur radio operators in foreign countries ... LPRA represents the interests of Panamanian amateur radio operators before Panamanian and international regulatory authorities ...
... The American Radio Relay League is a non-commercial membership association of amateur radio operators organized for the promotion of interest in Amateur Radio communication and experimentation ... Radio Amateurs ... emergency communications capability, ARRL's Amateur Radio Emergency Service (ARES) can be of valuable assistance in providing critical and essential communications during emergencies and disasters when normal lines of ...
... The Liga Colombiana de Radioaficionados (LCRA) (in English Colombian Amateur Radio League) is a national non-profit organization for amateur radio enthusiasts in Colombia ... was founded in 1933 by Italo Amore, Gustavo Uribe, Roberto Jaramillo Ferro, and other radio enthusiasts ... At the time, all radio transmissions were authorized by the Ministry of Posts, who opposed a private amateur radio service ...
Famous quotes containing the words radio and/or amateur:
“Denouement to denouement, he took a personal pride in the
certain, certain way he lived his own, private life,
but nevertheless, they shut off his gas; nevertheless,
the bank foreclosed; nevertheless, the landlord called;
nevertheless, the radio broke,
And twelve oclock arrived just once too often,”
—Kenneth Fearing (19021961)
“The true gardener then brushes over the ground with slow and gentle hand, to liberate a space for breath round some favourite; but he is not thinking about destruction except incidentally. It is only the amateur like myself who becomes obsessed and rejoices with a sadistic pleasure in weeds that are big and bad enough to pull, and at last, almost forgetting the flowers altogether, turns into a Reformer.”
—Freya Stark (18931993)