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21 relations: Amateur radio, Amateur radio satellite, AMSAT, Attenuation, Hertz, Institute of Electrical and Electronics Engineers, International Telecommunication Union, J band (NATO), K band (infrared), K band (NATO), Ka band, Kepler (spacecraft), Ku band, Microwave, NASA Deep Space Network, Radar, Radio spectrum, Satellite television, Super high frequency, Water vapor, 1.2-centimeter band.
Amateur radio
Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.
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Amateur radio satellite
An amateur radio satellite is an artificial satellite built and used by amateur radio operators for use in the Amateur-satellite service.
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AMSAT
AMSAT is a name for amateur radio satellite organizations worldwide, but in particular the Radio Amateur Satellite Corporation (AMSAT-NA) with headquarters at Kensington, Maryland, near Washington, D.C. AMSAT organizations design, build, arrange launches for, and then operate (command) satellites carrying amateur radio payloads, including the OSCAR series of satellites.
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Attenuation
In physics, attenuation or, in some contexts, extinction is the gradual loss of flux intensity through a medium.
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Hertz
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers (IEEE) is a professional association with its corporate office in New York City and its operations center in Piscataway, New Jersey.
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International Telecommunication Union
The International Telecommunication Union (ITU; Union Internationale des Télécommunications (UIT)), originally the International Telegraph Union (Union Télégraphique Internationale), is a specialized agency of the United Nations (UN) that is responsible for issues that concern information and communication technologies.
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J band (NATO)
The NATO J band is the obsolete designation given to the radio frequencies from 10 to 20 GHz (equivalent to wavelengths between 3 and 1.5 cm) during the cold war period.
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K band (infrared)
In infrared astronomy, the K band is an atmospheric transmission window centered on 2.2 μm (in the near-infrared 136 THz range).
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K band (NATO)
The NATO K band is the obsolete designation given to the radio frequencies from 20 to 40 GHz (equivalent to wavelengths between 1.5 and 0.75 cm) during the cold war period.
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Ka band
The Ka band (pronounced as either "kay-ay band" or "ka band") is a portion of the microwave part of the electromagnetic spectrum defined as frequencies in the range 26.5–40 gigahertz (GHz), i.e. wavelengths from slightly over one centimeter down to 7.5 millimeters.
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Kepler (spacecraft)
Kepler is a space observatory launched by NASA to discover Earth-size planets orbiting other stars.
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Ku band
The Ku band is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz).
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Microwave
Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.
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NASA Deep Space Network
The NASA Deep Space Network (DSN) is a worldwide network of US spacecraft communication facilities, located in the United States (California), Spain (Madrid), and Australia (Canberra), that supports NASA's interplanetary spacecraft missions.
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Radar
Radar is an object-detection system that uses radio waves to determine the range, angle, or velocity of objects.
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Radio spectrum
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3 000 GHz (3 THz).
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Satellite television
Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.
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Super high frequency
Super high frequency (SHF) is the ITU designation for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz).
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Water vapor
No description.
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1.2-centimeter band
The 1.2 centimeter or 24 GHz band is a portion of the SHF (microwave) radio spectrum internationally allocated to amateur radio and amateur satellite use.
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References
[1] https://en.wikipedia.org/wiki/K_band_(IEEE)
