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Ku Band
The KU BAND (pronunciation: /ˌkeɪˈjuː/ ) is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally German : Kurz-unten), because it is the lower part of the original NATO K band , which was split into three bands (Ku, K , and Ka ) because of the presence of the atmospheric water vapor resonance peak at 22.24 GHz, (1.35 cm) which made the center unusable for long range transmission. In radar applications, it ranges from 12-18 GHz according to the formal definition of radar frequency band nomenclature in IEEE Standard 521-2002
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Band V
BAND V (meaning Band 5) is the name of a radio frequency range within the ultra high frequency part of the electromagnetic spectrum . It is not to be confused with the V band in the extremely high frequency part of the spectrum. Sources differ on the exact frequency range of UHF Band V. For example, the Broadcast engineer's reference book and the BBC
BBC
define the range as 614 to 854 MHz
MHz
. The IPTV India Forum define the range as 582 to 806 MHz
MHz
and the DVB Worldwide website refers to the range as 585 to 806 MHz
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Band IV
BAND IV is the name of a radio frequency range within the ultra high frequency part of the electromagnetic spectrum . Sources differ on the exact frequency range of the band. For example, the Swiss Federal Office of Communications, the Broadcast engineer's reference book and Ericsson
Ericsson
India Ltd all define the range of Band IV from 470 to 582 MHz
MHz
. An EICTA paper defines the range as 474 to 602 MHz, whilst the BBC
BBC
define the range as 470 to 614 MHz. Band IV is primarily used for analogue and digital ( DVB-T
DVB-T
, ATSC
ATSC
and ISDB
ISDB
) television broadcasting, as well as services intended for mobile devices such as DVB-H
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C Band (NATO)
BAND or BAND may refer to: CONTENTS * 1 Science and technology * 2 Music * 3 Clothing, jewelry, and accessories * 4 Organizations * 5 Places * 6 Society and government * 7 Other uses * 8 See also SCIENCE AND TECHNOLOGY* Band (radio) , a range of frequencies or wavelengths in radio and radar, specifically: * Shortwave bands * UMTS frequency bands used for cellphones * LTE
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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 . It is named for Heinrich Rudolf Hertz
Hertz
, the first person to provide conclusive proof of the existence of electromagnetic waves . Hertz
Hertz
are commonly expressed in multiples : kilohertz (103 Hz, kHz), megahertz (106 Hz, MHz), gigahertz (109 Hz, GHz), and terahertz (1012 Hz, THz). Some of the unit's most common uses are in the description of sine waves and musical tones , particularly those used in radio - and audio-related applications. It is also used to describe the speeds at which computers and other electronics are driven
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Band VI
BAND or BAND may refer to: CONTENTS * 1 Science and technology * 2 Music * 3 Clothing, jewelry, and accessories * 4 Organizations * 5 Places * 6 Society and government * 7 Other uses * 8 See also SCIENCE AND TECHNOLOGY* Band (radio) , a range of frequencies or wavelengths in radio and radar, specifically: * Shortwave bands * UMTS frequency bands used for cellphones * LTE
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Band II
BAND or BAND may refer to: CONTENTS * 1 Science and technology * 2 Music * 3 Clothing, jewelry, and accessories * 4 Organizations * 5 Places * 6 Society and government * 7 Other uses * 8 See also SCIENCE AND TECHNOLOGY* Band (radio) , a range of frequencies or wavelengths in radio and radar, specifically: * Shortwave bands * UMTS frequency bands used for cellphones * LTE
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NASA
The NATIONAL AERONAUTICS AND SPACE ADMINISTRATION ( NASA
NASA
/ˈnæsə/ ) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program , as well as aeronautics and aerospace research. President Dwight D. Eisenhower
Dwight D. Eisenhower
established NASA
NASA
in 1958 with a distinctly civilian (rather than military) orientation encouraging peaceful applications in space science . The National Aeronautics
Aeronautics
and Space Act was passed on July 29, 1958, disestablishing NASA's predecessor, the National Advisory Committee for Aeronautics (NACA). The new agency became operational on October 1, 1958
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Water Vapor
WATER VAPOR, WATER VAPOUR or AQUEOUS VAPOR is the gaseous phase of water . It is one state of water within the hydrosphere . Water
Water
vapor can be produced from the evaporation or boiling of liquid water or from the sublimation of ice . Unlike other forms of water, water vapor is invisible. Under typical atmospheric conditions, water vapor is continuously generated by evaporation and removed by condensation . It is lighter than air and triggers convection currents that can lead to clouds. Being a component of Earth's hydrosphere and hydrologic cycle, it is particularly abundant in Earth\'s atmosphere where it is also a potent greenhouse gas along with other gases such as carbon dioxide and methane . Use of water vapor, as steam , has been important to humans for cooking and as a major component in energy production and transport systems since the industrial revolution
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German Language
No official regulation ( German orthography regulated by the Council for German Orthography )
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Meter
The METRE (international spelling ) or METER (American spelling ) (from the Greek noun μέτρον, "measure") is the base unit of length in the International System of Units (SI). The SI unit symbol is M. The metre is defined as the length of the path travelled by light in a vacuum in 1/299 792 458 seconds . The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole . In 1799, it was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86 . In 1983, the current definition was adopted. The imperial inch is defined as 0.0254 metres (2.54 centimetres or 25.4 millimetres). One metre is about  3 3⁄8 inches longer than a yard , i.e. about  39 3⁄8 inches
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Gigahertz
The HERTZ (symbol: Hz) is the derived unit of frequency in the International System of Units
International System of Units
(SI) and is defined as one cycle per second . It is named for Heinrich Rudolf Hertz
Hertz
, the first person to provide conclusive proof of the existence of electromagnetic waves . Hertz
Hertz
are commonly expressed in multiples : kilohertz (103 Hz, kHz), megahertz (106 Hz, MHz), gigahertz (109 Hz, GHz), and terahertz (1012 Hz, THz). Some of the unit's most common uses are in the description of sine waves and musical tones , particularly those used in radio - and audio-related applications. It is also used to describe the speeds at which computers and other electronics are driven
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Electromagnetic Spectrum
The ELECTROMAGNETIC SPECTRUM is a collective term; referring to the entire range and scope of frequencies of electromagnetic radiation and their respective, associated photon wavelengths. The electromagnetic spectrum extends from below the low frequencies used for modern radio communication to gamma radiation at the short-wavelength (high-frequency) end, thereby covering wavelengths from thousands of kilometers down to a fraction of the size of an atom . Visible light lies toward the shorter end, with wavelengths from 400 to 700 nanometres . The limit for long wavelengths is the size of the universe itself, while it is thought that the short wavelength limit is in the vicinity of the Planck length . Until the middle of the 20th century it was believed by most physicists that this spectrum was infinite and continuous . Nearly all types of electromagnetic radiation can be used for spectroscopy , to study and characterize matter
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Band III
BAND III is the name of the range of radio frequencies within the very high frequency (VHF) part of the electromagnetic spectrum from 174 to 240 megahertz (MHz). It is primarily used for radio and television broadcasting. It is also called HIGH-BAND VHF, in contrast to Bands I and II. CONTENTS* 1 Broadcast Television
Television
* 1.1 North America * 1.2 Europe * 1.3 Russia and other former members of OIRT * 2 Radio
Radio
* 3 Worldwide usage * 3.1 Europe * 3.2 North America * 4 References BROADCAST TELEVISIONNORTH AMERICAThe band is subdivided into seven channels for television broadcasting, each occupying 6 MHz. CHANNEL FREQUENCY RANGE 7 174-180 MHz 8 180-186 MHz 9 186-192 MHz 10 192-198 MHz 11 198-204 MHz 12 204-210 MHz 13 210-216 MHzEUROPEEuropean Band III allocations vary from country to country, with channel widths of 7 or 8 MHz
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Band I
BAND I is a range of radio frequencies within the very high frequency (VHF) part of the electromagnetic spectrum . Band I ranges from 47 to 68 MHz
MHz
for the European Broadcasting
Broadcasting
Area, and from 54 to 88 MHz
MHz
for the Americas and it is primarily used for broadcasting service (television broadcasting ) in line to ITU Radio Regulations (article 1.38). Channel spacings vary from country to country, with spacings of 6, 7 and 8 MHz
MHz
being common
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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
GHz
(equivalent to wavelengths between 1.5 and 0.75 cm) during the cold war period. Since 1992 frequency allocations, allotment and assignments are in line to NATO Joint Civil/Military Frequency
Frequency
Agreement (NJFA). However, in order to identify military radio spectrum requirements, e.g. for crises management planning, training, electronic warfare activities, or in military operations, this system is still in use
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