In physics, electromagnetic radiation (EMR) consists of waves of the electromagnetic (EM) field, propagating through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays. All of these waves form part of the electromagnetic spectrum.
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called dots and dashes, or dits and dahs. Morse code is named after Samuel Morse, one of the inventors of the telegraph.
In radio transmission, transmitter power output (TPO) is the actual amount of power of radio frequency (RF) energy that a transmitter produces at its output.
The Salvation Army Team Emergency Radio Network (SATERN) is a network of volunteer amateur radio operators that provide emergency communications between Salvation Army posts, and pass messages with health and welfare information between the Salvation Army and the general public.
The Japan Amateur Radio League (JARL) is a national non-profit organization for amateur radio enthusiasts in Japan. JARL was founded in 1926 by Japanese radio communication enthusiasts whose stated aim was to promote the development and utilization of radio wave technology as a medium. JARL says its current membership comprises the largest number of radio stations in the world, and credits its growth to "the devoted efforts of pioneering hams, who took the history of amateur radio to heart and guided it through the changing and challenging winds of technology and radio regulations". JARL is the national member society representing Japan in the International Amateur Radio Union.
RadCom is the monthly magazine published by the Radio Society of Great Britain and is provided to all corporate members of the society. Typically 100 pages, it includes a mixture of news, theory, construction and technical articles of interest to the amateur radio community. RadCom is the largest circulation amateur radio-related magazine in the United Kingdom.
KYMG is a commercial adult contemporary music radio station in Anchorage, Alaska, broadcasting on 98.9 FM. It is owned by iHeartMedia, Inc.. Its studios are located at Dimond Center in Anchorage, and its transmitter is located off Dowling Road in Southeast Anchorage.
KASH-FM is a commercial country music radio station in Anchorage, Alaska, broadcasting on 107.5 FM. It is owned by iHeartMedia, Inc. Its studios are located at Dimond Center in Anchorage, and its transmitter is located in Eagle River, Alaska.
KKBD is a commercial radio station located in Sallisaw, Oklahoma, broadcasting to the Fort Smith, Arkansas area on 95.9 FM. KKBD airs a classic rock music format branded as "Big Dog 95.9".
KRDU is a commercial radio station licensed to Dinuba, California, and serving the Fresno-Visalia radio market. It airs a Christian talk and teaching radio format and is owned by iHeartMedia, Inc. KRDU is regarded as America's first commercial Christian radio station. The studios and offices are located on Shaw Avenue in North Fresno.
The Bott Radio Network is a network of Christian radio stations in the United States, broadcasting Christian talk and teaching programs.
The Deutscher Amateur Radio Club e.V. (DARC) is a national non-profit organization for amateur radio enthusiasts in Germany. As of 9 July 2019, the organization had 34,009 members, approximately 53% of all licensed amateur radio operators in Germany. Key membership benefits of the organization include QSL bureau services, a monthly membership magazine called CQ DL, and the promotion and sponsorship of radio contests. DARC promotes amateur radio by organizing classes and technical support to help enthusiasts earn their amateur radio license. The DARC also represents the interests of German amateur radio operators and shortwave listeners before German and international telecommunications regulatory authorities. DARC is the national member society representing Germany in the International Amateur Radio Union.
The Réseau des Émetteurs Français (REF) is a national non-profit organization for amateur radio enthusiasts in France. Key membership benefits of the organization include QSL bureau services, a monthly membership magazine called Radio REF, and the promotion and sponsorship of radio contests and operating awards. REF promotes amateur radio by organizing classes and technical support to help enthusiasts earn their amateur radio license. The REF-Union also represents the interests of French amateur radio operators and shortwave listeners before French and international telecommunications regulatory authorities. REF is the national member society representing France in the International Amateur Radio Union.
The Federacion Mexicana de Radio Experimentadores, A.C. (FMRE) is a national non-profit organization for amateur radio enthusiasts in Mexico. Key membership benefits of the organization include QSL bureau services, the promotion and sponsorship of radio contests and operating awards, and an organization dedicated to emergency communications. FMRE promotes amateur radio by organizing classes and technical support to help enthusiasts earn their amateur radio license. Members receive a bimonthly magazine published by the organization, Onda corta. The FMRE also represents the interests of Mexican amateur radio operators before Mexican and international telecommunications regulatory authorities. FMRE is the national member society representing Mexico in the International Amateur Radio Union.
The Unión de Radioaficionados Españoles (URE) is a national non-profit organization for amateur radio enthusiasts in Spain. The organization has approximately 8,000 members, predominantly amateur radio operators in Spain. URE promotes amateur radio by sponsoring amateur radio operating awards and radio contests. The URE also represents the interests of Spanish amateur radio operators and shortwave listeners before Spanish and international telecommunications regulatory authorities. URE is the national member society representing Spain in the International Amateur Radio Union.
The Liga de Amadores Brasileiros de Rádio Emissão (LABRE) is a national non-profit organization for amateur radio enthusiasts in Brazil. LABRE has separate organizations for each state of Brazil. LABRE is recognized by the Brazilian Ministry of Communications. LABRE is the supporting organization for the Rede Nacional de Emergência de Radioamadores (RENER), a voluntary amateur radio emergency communications network in Brazil. LABRE was one of the sponsoring organizations for the 2006 World Radiosport Team Championship held in Florianópolis. LABRE is the national member society representing Brazil in the International Amateur Radio Union.
The Associazione Radioamatori Italiani is a national non-profit organization for amateur radio enthusiasts in Italy.
The Radio Club Argentino (RCA) is a national non-profit organization for amateur radio enthusiasts in Argentina. RCA was founded in Buenos Aires on October 21, 1921. Key membership benefits in the organization include the use of a QSL bureau for those amateur radio operators in regular contact with amateur radio operators in other countries, a group insurance policy, and a quarterly membership journal called Revista del Radio Club Argentino. The Radio Club Argentino represents the interests of Argentine amateur radio operators before Argentine and international regulatory authorities. It is also the national member society representing Argentina in the International Amateur Radio Union.
The Suomen Radioamatööriliitto (SRAL) is a national non-profit organization for amateur radio enthusiasts in Finland. SRAL was founded in 1921 and has approximately 3,500 members. SRAL supports amateur radio operators in Finland by sponsoring amateur radio operating awards and radio contests. SRAL was one of the sponsor organizations for the 2002 World Radiosport Team Championships held near Helsinki. The SRAL also represents the interests of Finnish amateur radio operators and shortwave listeners before Finnish and international telecommunications regulatory authorities. SRAL is the national member society representing Finland in the International Amateur Radio Union.
Mackay Radio stations are from Mackay communication since 1925. Frequencies of Mackay FM online radio are 105.9 FM, 107.8 FM.
