Amateur radio station with modern solid-state transceiver featuring LCD and DSP capabilities

Amateur radio, often called ham radio, is both a hobby and a service that uses various types of radio communications equipment to communicate with other radio amateurs for public service, recreation and self-training. A participant is called an amateur radio operator, or a ham.^[1] Image File history File links Icom. ... Image File history File links Icom. ... In electronics, solid state circuits are those that do not contain vacuum tubes. ... A transceiver is a device that has both a transmitter and a receiver which are combined in to one. ... LCD redirects here. ... Digital signal processing (DSP) is the study of signals in a digital representation and the processing methods of these signals. ... This article is about the etymology of the term ham radio. ... A hobby is a spare-time recreational pursuit. ... Radio transmition diagram and electromagnetic waves For other uses see: radio (disambiguation) Radio is a technology that allows the transmission of signals by modulation of electromagnetic waves with frequencies below those of light. ... Public services is a term usually used to mean services provided by government to its citizens, either directly (through the public sector) or by financing private provision of services. ... An amateur radio operator is an individual who, typically, uses equipment at an amateur radio station to engage in two-way personal communications with other similar individuals on radio frequencies assigned to the Amateur Radio Service. ...

Amateur radio operators enjoy personal wireless communications with each other and often support their communities with emergency and disaster communications while increasing their personal knowledge of electronics and radio theory. An estimated six million people throughout the world are regularly involved with amateur radio.^[2] It has been suggested that this article or section be merged with Wireless. ... In times of crisis and natural disasters, Amateur radio is often used as a means of emergency communication when wireline and other conventional means of communications fail. ... This article is about the engineering discipline. ...

The term "amateur" is not a reflection on the skills of the participants, which are often quite advanced; rather, "amateur" indicates that amateur radio communications are not allowed to be made for commercial or money-making purposes.

History

Main article: Amateur radio history

Though its origins can be traced to at least the late 1800s, amateur radio, as practiced today, began in the 1920s. As with radio in general, the birth of amateur radio was strongly associated with various amateur experimenters and hobbyists. Throughout its history, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services. Research by amateur radio operators has founded new industries, built economies, empowered nations, and saved lives in times of emergency. Throughout its history, amateur radio enthusiasts have made significant contributions to science, engineering, industry, and social services. ... For the controversy about who invented radio, see Invention of radio. ... A magnet levitating above a high-temperature superconductor demonstrates the Meissner effect. ... Engineering is the discipline of acquiring and applying knowledge of design, analysis, and/or construction of works for practical purposes. ... A social worker is a person employed in the administration of charity, social service, welfare, and poverty agencies, advocacy, or religious outreach programs. ... An amateur radio operator is an individual who, typically, uses equipment at an amateur radio station to engage in two-way personal communications with other similar individuals on radio frequencies assigned to the Amateur Radio Service. ...

The international symbol for amateur radio, included in the logos of many IARU member societies. The diamond holds a circuit diagram featuring components common to every radio: an antenna, inductor and ground.

Image File history File links This is a lossless scalable vector image. ... Image File history File links This is a lossless scalable vector image. ... The IARU Logo. ... The circuit diagram for a 4 bit TTL counter, a type of state machine A circuit diagram (also known as an electrical diagram, elementary diagram, or electronic schematic) is a simplified conventional pictorial representation of an electrical circuit. ... A Yagi-Uda beam antenna Short Wave Curtain Antenna (Moosbrunn, Austria) A building rooftop supporting numerous dish and sectored mobile telecommunications antennas (Doncaster, Victoria, Australia) An antenna is a transducer designed to transmit or receive radio waves which are a class of electromagnetic waves. ... An inductor is a passive electrical device employed in electrical circuits for its property of inductance. ... It has been suggested that Ground conductor be merged into this article or section. ...

Activities and practices

Radio amateurs use various modes of transmission to communicate. Voice transmissions are most common, with some such as frequency modulation (FM) offering high quality audio, and others such as single sideband (SSB) offering more reliable communications when signals are marginal and bandwidth is restricted. . ... In telecommunications, frequency modulation (FM) conveys information over a carrier wave by varying its frequency. ... Single-sideband modulation (SSB) is a refinement of the technique of amplitude modulation designed to be more efficient in its use of electrical power and bandwidth. ...

Radiotelegraphy using Morse code remains popular, particularly on the shortwave bands and for experimental work such as Moonbounce, with its inherent signal-to-noise ratio advantages. Morse, using internationally agreed code groups, also facilitates communications between amateurs who speak different languages.^[3] It is also popular with homebrewers as CW-only transmitters are simpler to construct. For many years, demonstrating a proficiency in Morse code was a requirement to obtain amateur licenses for the high frequency bands, but following changes in international regulations in 2003, many countries have now dropped this requirement (the United States Federal Communications Commission did so in 2007). Telegraph and Telegram redirect here. ... 1922 Chart of the Morse Code Letters and Numerals Morse code is a method for transmitting telegraphic information, using standardized sequences of short and long elements to represent the letters, numerals, punctuation and special characters of a message. ... A solid-state, analog shortwave receiver Shortwave radio operates between the frequencies of 3 MHz (3,000 kHz) and 30 MHz (30,000 kHz) [1] and came to be referred to as such in the early days of radio because the wavelengths associated with this frequency range were shorter than... Earth-Moon-Earth is a radio communication which relies on the propagation of radio waves from an earth based transmitter directed via reflection from the surface of the moon back to an earth based receiver. ... Signal-to-noise ratio (often abbreviated SNR or S/N) is an electrical engineering concept defined as the ratio of a signal power to the noise power corrupting the signal. ... Homebrew is an Amateur radio slang term for home-built, noncommercial radio equipment. ... A continuous wave (CW) is an electromagnetic wave of constant amplitude and frequency. ... High frequency (HF) radio frequencies are between 3 and 30 MHz. ...

Amateur radio operator, DJ1YFK running high-speed computer-generated telegraphy during a competition

Amateur radio operator MM3OXB operating HF on an FT857D

Amateur radio operator KB3HTS operating SSB

Modern personal computers have led to a boom in digital modes such as radioteletype, which previously required cumbersome mechanical equipment.^[4] Hams led the development of packet radio, which has even used protocols such as TCP/IP since the 1970s. This has since been augmented by more specialized modes such as PSK31 to facilitate real-time, low-power communications on the shortwave bands. Echolink using Voice over IP technology has enabled amateurs to communicate through local internet-connected repeaters and radio nodes, while IRLP has allowed easy linking together of repeaters. Other modes, such as FSK441 using software such as WSJT, are used for weak signal modes including meteor scatter and moonbounce communications. Image File history File links Metadata Size of this preview: 800 × 534 pixelsFull resolution (1000 × 667 pixel, file size: 616 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Metadata Size of this preview: 800 × 534 pixelsFull resolution (1000 × 667 pixel, file size: 616 KB, MIME type: image/jpeg) File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links Flag_of_Germany. ... Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ... Image File history File links Flag_of_the_United_Kingdom. ... ImageMetadata File history File links Download high resolution version (2048x1536, 665 KB) Summary An amateur radio operator, copyright Yvette Cendes, 2005 Licensing File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... ImageMetadata File history File links Download high resolution version (2048x1536, 665 KB) Summary An amateur radio operator, copyright Yvette Cendes, 2005 Licensing File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Image File history File links This is a lossless scalable vector image. ... For other uses, see Digital (disambiguation). ... RadioTeleType (RTTY) is a telecommunications system consisting of two teleprinters linked by a radio link. ... Packet radio is a form of digital data transmission used in amateur radio to construct wireless computer networks. ... The Internet protocol suite is the set of communications protocols that implement the protocol stack on which the Internet runs. ... PSK31 or Phase Shift Keying, 31 Baud is a digital radio modulation mode, used primarily in the amateur radio field. ... Echolink is a computer program that runs under Microsoft Windows to allow radio amateurs to communicate with one another using Voice over IP (VoIP) technology on the internet for at least part of the path between them. ... An overview of how VoIP works A typical analog telephone adapter for connecting an ordinary phone to a VoIP network Ciscos implementation of VoIP - IP Phone Voice over Internet Protocol, also called VoIP (pronounced voyp), IP Telephony, Internet telephony, Broadband telephony, Broadband Phone and Voice over Broadband is the... The Internet Radio Linking Project or IRLP is a project within general amateur radio. ... WSJT is the name of a computer program. ... Meteor scatter is a radio propagation mode that allows communications over distances of up to 1400 miles. ... Earth-Moon-Earth is a radio communication which relies on the propagation of radio waves from an earth based transmitter directed via reflection from the surface of the moon back to an earth based receiver. ...

Similarly, fast scan amateur television, once considered rather esoteric, has exploded in popularity thanks to cheap camcorders and video cards in home computers. Because of the wide bandwidth and stable signals required, amateur television is typically found in the 70 cm (420—450 MHz) frequency range, though limited usage also exists on 33 cm (902—928 MHz), 23 cm (1240—1300 MHz) and higher. These requirements also effectively limit the signal range to between 20 and 60 miles (30—100 km), however, the use of linked repeater systems can allow transmissions across several states.^[5] Amateur television (ATV) is the hobby of transporting broadcast-quality video and audio over radio waves allocated for amateur radio using the broadcast standards of NTSC in North America and Japan, and PAL or SECAM in Europe and elsewhere, using the full refresh rates of those standards. ... The home computer is a consumer-friendly word for the second generation of microcomputers (the technical term that was previously used), entering the market in 1977 and becoming common during the 1980s. ... Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. ... An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. ...

These repeaters, or automated relay stations, are used on VHF and higher frequencies to increase signal range. Repeaters are usually located on top of a mountain, hill or tall building, and allow operators to communicate over hundreds of square miles using a low power hand-held transceiver. Repeaters can also be linked together by use of other amateur radio bands, landline or the Internet. Very high frequency (VHF) is the radio frequency range from 30 MHz to 300 MHz. ... For other uses, see Mountain (disambiguation). ... Hills redirects here. ... Old Executive Office Building, Washington D.C. Bank of China Tower, Hong Kong, China In architecture, construction, engineering and real estate development the word building may refer to one of the following: Any man-made structure used or intended for supporting or sheltering any use or continuous occupancy, or An... A transceiver is a device that has both a transmitter and a receiver which are combined in to one. ... Amateur radio frequency allocation is done by national telecommunications authorities. ... A landline or main line is a telephone line which travels through a solid medium, either metal wire or optical fibre. ...

Communication satellites called OSCARs (Orbiting Satellite Carrying Amateur Radio) can be accessed, some using a handheld transceiver (HT) with a stock "rubber duck" antenna. Hams also use the moon and the ionized trails of meteors as reflectors of radio waves.^[6] Hams are also often able to make contact with the International Space Station (ISS),^[7] as many astronauts and cosmonauts are licensed as Amateur Radio Operators.^[8] For other uses, see Satellite (disambiguation). ... OSCAR is an acronym for Orbital Satellite Carrying Amateur Radio. ... A walkie-talkie is a portable, bi-directional radio transceiver, first developed for military use. ... This article is about Earths moon. ... Worlds second largest Meteorite in Culiacan, Mexico A meteorite is a relatively small extra-terrestrial body that reaches the Earths surface. ... ISS redirects here. ... Astronaut Bruce McCandless II using a manned maneuvering unit outside the U.S. Space Shuttle Challenger in 1984. ... U.S. Space Shuttle astronaut Bruce McCandless II using a manned maneuvering unit. ...

Amateur radio operators use their amateur radio station to make contacts with individual hams as well as participating in round table discussion groups or "rag chew sessions" on the air. Some join in regularly scheduled on-air meetings with other amateur radio operators, called "Nets" (as in "networks") which are moderated by a station referred to as "Net Control".^[9] Nets can allow operators to learn procedures for emergencies, be an informal round table or be topical, covering specific interests shared by a group. An amateur radio station is a facility equipped with the apparatus necessary for carrying on radiocommunications in the Amateur Radio Service. ...

Licensing

Main article: Amateur radio license

In all countries, amateur radio operators are required to pass a licensing exam displaying knowledge and understanding of key concepts. In return, hams are granted operating privileges in larger segments of the radio frequency spectrum using a wide variety of communication techniques with higher power levels permitted. This practice is in contrast to other unlicensed personal radio services such as CB radio, Multi-Use Radio Service, or Family Radio Service / PMR446 that require type-approved equipment restricted in frequency range and power. An amateur radio license is a legal document or permit giving official permission to the license holder to operate an amateur radio station. ... It has been suggested that this article or section be merged with Radio waves. ... Citizens band radio (CB) is, in the United States, a system of short distance radio communication between individuals on a selection of 40 channels within the single 27 MHz (11 meter) band. ... The Multi-Use Radio Service (MURS) is a small two-way radio service consisting of five frequencies in the VHF spectrum. ... The Family Radio Service is an improved walkie talkie system authorized in the United States. ... Alan 456r PMR446 (Personal Mobile Radio, 446 MHz) is a radio frequency part of the UHF range that is open without licensing for personal usage in most members of the European Union. ...

A handheld VHF/UHF transceiver, 2007.

In many countries, amateur licensing is a routine civil administrative matter. Amateurs are required to pass an examination to demonstrate technical knowledge, operating competence and awareness of legal and regulatory requirements in order to avoid interference with other amateurs and other radio services. There are often a series of exams available, each progressively more challenging and granting more privileges in terms of frequency availability, power output, permitted experimentation, and in some countries, distinctive callsigns. Some countries such as Great Britain and Australia have begun requiring a practical training course in addition to the written exams in order to obtain a beginner's license. These beginner's licenses are referred to as Foundation Licenses. Image File history File links No higher resolution available. ... Image File history File links No higher resolution available. ...

Amateur radio licensing in the United States serves as an example of the way some countries award different levels of amateur radio licenses based on technical knowledge. Licensees previously needed to demonstrate proficiency in Morse Code to obtain or upgrade a license. These requirements were phased out by the Federal Communications Commission, first from the entry-level Technician license in 1991, and eventually from all license classes on February 23, 2007.^[10] This conforms with international law, which no longer mandates Morse code testing, as well as views by the FCC that Morse code should be treated like other communications techniques, and that written testing is sufficient to prove that an applicant is qualified to obtain an amateur radio license.^[11] Some portions of the ham bands remain reserved for Morse code use only and the mode remains popular. In the United States, amateur radio licensing is governed by the Federal Communications Commission. ... 1922 Chart of the Morse Code Letters and Numerals Morse code is a method for transmitting telegraphic information, using standardized sequences of short and long elements to represent the letters, numerals, punctuation and special characters of a message. ... FCC redirects here. ... Year 1991 (MCMXCI) was a common year starting on Tuesday (link will display the 1991 Gregorian calendar). ... is the 54th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ...

In times of crisis and natural disasters, Amateur radio is often used as a means of emergency communication when wireline and other conventional means of communications fail. ... Homebrew is an Amateur radio slang term for home-built, noncommercial radio equipment. ... A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ... OSCAR is an acronym for Orbital Satellite Carrying Amateur Radio. ... SKYWARN is a program of the United States National Weather Service (NWS). ... DX communication is communication over great distances using the ionosphere to refract the transmitted radio beam. ... A DX-pedition normally is an expedition to an exotic place. ... The Internet Radio Linking Project or IRLP is a project within general amateur radio. ... A Radio Repeater is a combination of a radio receiver and a radio transmitter that receives a weak or low-level signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. ... Automatic Packet Reporting System (APRS) is an amateur radio based system for digital communications, most commonly used to automatically report the position (GPS coordinates) of a person or object, or weather data at a remote location. ... GPS redirects here. ... Champions of the 2002 World Radiosport Team Championship (WRTC), Helsinki, Finland. ... The most coveted Amateur Radio operating awards An amateur radio operating award is earned by an amateur radio operator for establishing two-way communication (or working) with other amateur radio stations. ... An example amateur radio QSL card QSL, or QSL card, is the confirmation of a QSO (a radio contact) between two radio amateurs. ... A German competitor on a two-meter ARDF course. ... High Speed Telegraphy (HST) competitions challenge individuals to correctly receive and copy Morse code transmissions sent at very high speeds. ... In amateur radio, QRP operation means transmitting at reduced power levels. ... Vintage amateur gear at station W1GFH Vintage amateur radio is a subset of the amateur radio hobby, considered a form of nostalgia much like antique car collecting, where enthusiasts collect, restore, preserve, build, and operate amateur radio equipment from bygone years, most notably those using vacuum tube technology. ... Structure of a vacuum tube diode Structure of a vacuum tube triode In electronics, a vacuum tube, electron tube, or (outside North America) thermionic valve or just valve, is a device used to amplify, switch or modify a signal by controlling the movement of electrons in an evacuated space. ... A Hamfest is an occasion where Amateur radio enthusiasts come together to sell radio and other electronic equipment. ... Licensed amateur radio operators often take part in portable operations using radio equipment when traveling. ... An amateur radio station is a facility equipped with the apparatus necessary for carrying on radiocommunications in the Amateur Radio Service. ... Very high frequency (VHF) is the radio frequency range from 30 MHz to 300 MHz. ... Ultra high frequency (UHF) designates a range (band) of electromagnetic waves whose frequency is between 300 MHz and 3. ... This article is about the type of Electromagnetic radiation. ... In the hobby of Amateur radio, participants use radios to communicate. ...

Newcomers

Many people start their involvement in amateur radio by finding a local club. Clubs often provide information about licensing, local operating practices and technical advice. Newcomers also often study independently by purchasing books or other materials, sometimes with the help of a mentor, teacher or friend. In addition, many countries have national amateur radio societies which encourage newcomers and work with government communications regulation authorities for the benefit of all radio amateurs. The oldest of these societies is the Wireless Institute of Australia, formed in 1910; other notable societies are the Radio Society of Great Britain, the American Radio Relay League, Radio Amateurs of Canada, the New Zealand Association of Radio Transmitters and South African Radio League. ( See Category:Amateur radio organizations) The Wireless Institute of Australia (WIA) was formed in 1910, and is the first and oldest national radio society. ... This article lacks information on the importance of the subject matter. ... The ARRL Logo. ... Radio Amateurs of Canada (RAC), known in French as Radio Amateurs du Canada, is a Canadian association of amateur radio operators. ... The New Zealand Association of Radio Transmitters, or NZART, is a non-profit association of Amateur Radio Operators. ... The National Body representing Amateur Radio in South Africa. ...

Callsigns

Upon licensing, a radio amateur's national government issues a unique callsign to the radio amateur. The holder of a callsign uses it on the air to legally identify the operator or station during any and all radio communication.^[12] In certain jurisdictions, an operator may also select a "vanity" callsign.^[13] Some jurisdictions, such as the U.S., require that a fee be paid to obtain such a vanity callsign; in others, such as the UK, a fee is not required and the vanity callsign may be selected when the license is applied for. Call sign can refer to different types of call signs: Airline call sign Aviator call sign Cosmonaut call sign Radio and television call signs Tactical call sign, also known as a tactical designator See also: International Callsign Allocations, Maritime Mobile Service Identity This is a disambiguation page — a navigational... An amateur radio station is a facility equipped with the apparatus necessary for carrying on radiocommunications in the Amateur Radio Service. ... Communication is a process that allows organisms to exchange information by several methods. ...

Privileges

In contrast to most commercial and personal radio services, radio amateurs are not restricted to using type-approved equipment, and radio amateurs may home-construct or modify equipment in any way so long as they meet spurious emission standards. A spurious emission is any radio frequency not deliberately created or transmitted, especially in a device which normally does create other frequencies. ...

As noted, radio amateurs have access to frequency allocations throughout the RF spectrum, enabling choice of frequency to enable effective communication whether across a city, a region, a country, a continent or the whole world regardless of season or time day or night. The shortwave bands, or HF, can facilitate worldwide communication, the VHF and UHF bands offer excellent regional communication, and the broad microwave bands have enough space, or bandwidth, for television (known as SSTV and FSTV) transmissions and high-speed data networks. High frequency (HF) radio frequencies are between 3 and 30 MHz. ... Very high frequency (VHF) is the radio frequency range from 30 MHz to 300 MHz. ... This article is about the radio frequency. ... This article is about the type of Electromagnetic radiation. ... Bandwidth is the difference between the upper and lower cutoff frequencies of, for example, a filter, a communication channel, or a signal spectrum, and is typically measured in hertz. ... SSTV transmissions often include station call signs, RST reception reports, and radio amateur jargon. ... Amateur television (ATV) is the hobby of transporting broadcast-quality video and audio over radio waves allocated for amateur radio using the broadcast standards of NTSC in North America and Japan, and PAL or SECAM in Europe and elsewhere, using the full refresh rates of those standards. ... A computer network is an interconnection of a group of computers. ...

A distinguishing privilege of an amateur radio license is the ability to make relatively free use of variable frequency oscillators to control transmitter frequencies. The only other service allowed this privilege is the military. All other radio services must use 'type approved' transmitters that transmit on fixed frequencies.^{[citation needed]} VFO is an acronym for Variable Frequency Oscillator. ...

Although allowable power levels are moderate by commercial standards, they are sufficient to enable global communication. Power limits vary from country to country and between license classes within a country. For example, the power limits for the highest available license classes in a few selected countries are: 2.25 kilowatts in Canada, 2 kilowatts in most countries of the former Yugoslavia, 1.5 kilowatts in the United States, 1 kilowatt in Belgium and Switzerland, 750 watts in Germany, 500 watts in Italy, 400 watts in Australia and the United Kingdom, 150 watts in Oman and 100 watts in India. Lower license classes usually have lower power limits; for example, the lowest license class in the UK has a limit of just 10 watts. In physics, power (symbol: P) is the rate at which work is performed or energy is transmitted, or the amount of energy required or expended for a given unit of time. ... For other uses, see Watt (disambiguation). ... Yugoslavia (Jugoslavija in the Latin alphabet, Југославија in Cyrillic; English: South Slavia, or literary The Land of South Slavs) describes three political entities that existed one at a time on the Balkan Peninsula in Europe, during most of the 20th century. ...

When traveling abroad, the visiting ham must follow the rules of the country in which she or he wishes to operate. Some countries have reciprocal operating agreements to facilitate international operation, allowing hams from other countries to operate within their borders with just their home country license. Other host countries require that the visiting ham apply for a formal permit, or even a new host country-issued license, in advance. Amateur radio is a diverse hobby practiced throughout the world. ...

Band plans and frequency allocations

Main article: Amateur radio frequency allocations

The International Telecommunication Union (ITU) governs the allocation of communications frequencies world-wide, with participation by each nation's communications regulation authority. National communications regulators have some liberty to restrict access to these frequencies or to award additional allocations as long as radio services in other countries do not suffer interference. In some countries, specific emission types are restricted to certain parts of the radio spectrum, and in most other countries, International Amateur Radio Union (IARU) member societies adopt voluntary plans to ensure the most effective use of spectrum. Amateur radio frequency allocation is done by national telecommunications authorities. ... The International Telecommunication Union (ITU; French: Union internationale des télécommunications, Spanish: Unión Internacional de Telecomunicaciones) is an international organization established to standardize and regulate international radio and telecommunications. ... The International Telecommunication Union uses a special system for classifying radio frequency signals. ... The IARU Logo. ...

In a few cases, a national telecommunication agency may also allow hams to use frequencies outside of the internationally allocated amateur radio bands. In Trinidad and Tobago, hams are allowed to use a repeater which is located on 148.80 MHz. This repeater is used and maintained by the National Emergency Management Agency (NEMA), but may be used by radio amateurs in times of emergency or during normal times to test their capability and conduct emergency drills. This repeater can also be used by non-ham NEMA staff and REACT members. In Australia and New Zealand ham operators are authorized to use one of the UHF TV channels. In the U.S., in cases of emergency, amateur radio operators may use any frequency including those of other radio services such as police and fire communications and the Alaska statewide emergency frequency of 5165.7 kHz. REACT (Radio Emergency Associated Communications Teams), began as a CB Channel 9 radio monitoring organization in the United States in 1962. ... For other uses, see Alaska (disambiguation). ...

Similarly, amateurs in the United States may apply to be registered with the Military Affiliate Radio System (MARS). Once approved and trained, these amateurs also operate on US Government Military frequencies to provide contingency communications and morale message traffic support to the military services. The Military Affiliate Radio System (MARS) Logo The Military Affiliate Radio System (MARS) is a United States Department of Defense sponsored program, established as a separately managed and operated program by the Army, Navy, and Air Force. ...

Popular culture

Amateur radio can be found throughout popular culture as a plot device. A classic example is the "Radio Ham" episode of 1960s British comedy series Hancock's Half Hour. Hancocks Half Hour was a famous BBC radio comedy series of the 1950s starring Tony Hancock. ...

There are also famous Amateur radio operators, such as King Juan Carlos I of Spain, the late Prime Minister of India Rajiv Gandhi and his wife Sonia Gandhi, Bollywood actor Amitabh Bachchan, US radio and TV host Walter Cronkite, and Coast To Coast AM host Art Bell. Others include US Gen. Curtis LeMay, Joe Walsh, Lance Bass, Barry Goldwater, Chet Atkins, Marlon Brando, King Hussein of Jordan, Patty Loveless, Ronnie Milsap, Bill "Bubba" Bussey from the nationally syndicated Rick and Bubba Show, Maine Governor John Baldacci, and Jean Shepherd, as well as most of the launched astronauts and cosmonauts. George Sweigert, inventor of the cordless phone, was an amateur radio operator as well. An amateur radio operator is an individual who, typically, uses equipment at an amateur radio station to engage in two-way personal communications with other similar individuals on radio frequencies assigned to the Amateur Radio Service. ... Juan Carlos I (baptized as Juan Carlos Alfonso Víctor María de Borbón y Borbón-Dos Sicilias; born January 5, 1938, Rome, Italy) is the reigning King of Spain. ... The Prime Minister of India is, in practice, the most powerful person in the Government of India. ... Rajiv Ratna Gandhi राजीव गाधीं (IPA: ), born in Mumbai, (August 20, 1944 – May 21, 1991), the eldest son of Indira and Feroze Gandhi, was the 7th Prime Minister of India (and the 2nd from the Gandhi family) from his mothers death on 31 October 1984 until his resignation on December 2... Sonia Gandhi (Hindi: , IPA: ), born Sonia Antonia Maino on December 9, 1946, is an Italian-born Indian politician, the President of the Indian National Congress and the widow of former Prime Minister of India, Rajiv Gandhi. ... Bachchan redirects here. ... Walter Leland Cronkite, Jr. ... Arthur Art W. Bell, III (born June 17, 1945) is an American broadcaster and author, known primarily as the founder and longtime host of the paranormal-themed radio program Coast to Coast AM. He also created and formerly hosted its companion show, Dreamland. ... Curtis Emerson LeMay (November 15, 1906–October 3, 1990) was a general in the United States Air Force and the vice presidential running mate of independent candidate George C. Wallace in 1968. ... For other persons named Joe Walsh, see Joe Walsh (disambiguation). ... James Lance Bass[1][2] (born May 4, 1979), known as Lance Bass (IPA pronunciation: ),[3] is an American pop singer, actor, producer and author who is best known as the bass singer for the American pop group N Sync. ... Barry Morris Goldwater (January 1, 1909 – May 29, 1998) was a five-term United States Senator from Arizona (1953–1965, 1969–87) and the Republican Partys nominee for president in the 1964 election. ... Chet Atkins Chester Burton Chet Atkins (June 20, 1924 – June 30, 2001) was an influential guitarist and record producer. ... Marlon Brando, Jr. ... Hussein bin Talal (Arabic: حسين بن طلال) (November 14, 1935 - February 7, 1999) was the King of the Hashemite Kingdom of Jordan from 1952 to 1999. ... Patty Loveless signing a shirt Patty Loveless (born Patricia Lee Ramey on January 4, 1957 in Pikeville, Kentucky) is an American country music singer. ... Ronnie Milsap (born Ronnie Lee Milsap January 16, 1943 in Robbinsville, North Carolina) is an American Country/Pop Singer and Musician. ... Rick Burgess (born October 3, 1964 Oxford,Alabama) and Bill Bubba Bussey (born March 27, 1964 Jacksonville,Alabama) are two syndicated comedic radio personalities and authors based in Birmingham, Alabama. ... Official language(s) None (English and French de facto) Capital Augusta Largest city Portland Area  Ranked 39th  - Total 33,414 sq mi (86,542 km²)  - Width 210 miles (338 km)  - Length 320 miles (515 km)  - % water 13. ... John Elias Baldacci (born January 30, 1955) is the current Governor of the U.S. State of Maine. ... Jean Shepherd posed as Frederick R. Ewing on the back cover of Ballantines I, Libertine (1956). ... George H. Sweigert (1920-1999) is widely credited as the first inventor to hold a patent for the invention of the cordless telephone. ...

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Cited References

General References

Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 143rd day of the year (144th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 237th day of the year (238th in leap years) in the Gregorian calendar. ... Year 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... is the 113th day of the year (114th in leap years) in the Gregorian calendar. ... The Online Computer Library Center (OCLC) was founded in 1967 and originally named the Ohio College Library Center. ... The National Geospatial-Intelligence Agency (NGA) is an agency of the United States Government with the primary mission of collection, analysis, and distribution of geospatial intelligence (GEOINT) in support of national security. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 10th day of the year in the Gregorian calendar. ... The ARRL Logo. ... Year 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... is the 235th day of the year (236th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 10th day of the year in the Gregorian calendar. ... QST is an ARRL published magazine for amateur radio enthusiasts. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 153rd day of the year (154th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 11th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 10th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 10th day of the year in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 10th day of the year in the Gregorian calendar. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 353rd day of the year (354th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 136th day of the year (137th in leap years) in the Gregorian calendar. ... FCC redirects here. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 353rd day of the year (354th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 136th day of the year (137th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 153rd day of the year (154th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 153rd day of the year (154th in leap years) in the Gregorian calendar. ... The Online Computer Library Center (OCLC) was founded in 1967 and originally named the Ohio College Library Center. ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... is the 121st day of the year (122nd in leap years) in the Gregorian calendar. ... The Online Computer Library Center (OCLC) was founded in 1967 and originally named the Ohio College Library Center. ... The Online Computer Library Center (OCLC) was founded in 1967 and originally named the Ohio College Library Center. ... Year 2001 (MMI) was a common year starting on Monday (link displays the 2001 Gregorian calendar). ... is the 304th day of the year (305th in leap years) in the Gregorian calendar. ... The Online Computer Library Center (OCLC) was founded in 1967 and originally named the Ohio College Library Center. ...

See also

Electronics Portal

Radio Portal

• List of amateur radio magazines
• List of amateur radio operating modes
• List of amateur radio organizations

Image File history File links Nuvola_apps_ksim. ... Image File history File links Radio_icon. ... This is a list of magazines that focus on topics related to amateur radio. ... . ... Amateur radio organizations have been important from the earliest days of radio communications. ...

External links

• Amateur Radio at the Open Directory Project