HOME TheInfoList.com
Providing Lists of Related Topics to Help You Find Great Stuff
[::MainTopicLength::#1500] [::ListTopicLength::#1000] [::ListLength::#15] [::ListAdRepeat::#3]

picture info

Medium Frequency
MEDIUM FREQUENCY (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz). Part of this band is the medium wave (MW) AM broadcast band. The MF band is also known as the HECTOMETER BAND or HECTOMETER WAVE as the wavelengths range from ten to one hectometer (1,000 to 100 m). Frequencies immediately below MF are denoted low frequency (LF), while the first band of higher frequencies is known as high frequency (HF). MF is mostly used for AM radio broadcasting , navigational radio beacons , maritime ship-to-shore communication, and transoceanic air traffic control
[...More...]

"Medium Frequency" on:
Wikipedia
Google
Yahoo

Ka Band
The KA BAND ("kay-ay 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. The band is called Ka, short for "K-above" because it is the upper part of the original NATO K band , which was split into three bands 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. The 30/20 GHz band is used in communications satellites , uplink in either the 27.5 GHz and 31 GHz bands, and high-resolution, close-range targeting radars aboard military airplanes. Some frequencies in this radio band are used for vehicle speed detection by law enforcement. The Kepler Mission uses this frequency range to downlink the scientific data collected by the space telescope
[...More...]

"Ka Band" on:
Wikipedia
Google
Yahoo

K Band (IEEE)
The IEEE
IEEE
K BAND is a portion of the radio spectrum in the microwave range of frequencies from 18 to 27 gigahertz (GHz). The range of frequencies in the center of the K band between 18 and 26.5 GHz is absorbed by water vapor in the atmosphere due to its resonance peak at 22.24 GHz, 1.35 cm. Therefore these frequencies experience high atmospheric attenuation and cannot be used for long distance applications. For this reason the original K band has been split into three bands, as detailed below. CONTENTS * 1 Subdivisions * 2 Amateur radio
Amateur radio
* 3 See also * 4 References SUBDIVISIONSBecause of the water vapor absorption peak in the center of the band, the IEEE
IEEE
K band is conventionally divided into three sub-bands: * Ka band : K-above band, 26.5–40 GHz, mainly used for radar and experimental communications
[...More...]

"K Band (IEEE)" on:
Wikipedia
Google
Yahoo

V Band
The V BAND ("vee-band") is a standard designation by the Institute of Electrical and Electronic Engineers (IEEE) for a band of frequencies in the microwave portion of the electromagnetic spectrum ranging from 40 to 75 gigahertz (GHz). The V band is not heavily used, except for millimeter wave radar research and other kinds of scientific research. It should not be confused with the 600–1000 MHz range of Band-V (band-five) of the UHF
UHF
frequency range. The V band is also used for high capacity terrestrial millimeter wave communications systems. In the United States, the Federal Communications Commission has allocated the frequency band from 57 to 71 GHz
GHz
for unlicensed wireless systems. These systems are primarily used for high capacity, short distance (less than 1 mile) communications
[...More...]

"V Band" on:
Wikipedia
Google
Yahoo

W Band
The W BAND of the microwave part of the electromagnetic spectrum ranges from 75 to 110 GHz
GHz
, wavelength ≈2.7–4 mm . It sits above the U.S. IEEE
IEEE
-designated V band (50–75 GHz) in frequency, and overlaps the NATO designated M band (60–100 GHz). The W band is used for satellite communications, millimeter-wave radar research, military radar targeting and tracking applications, and some non-military applications. A number of passive millimeter-wave cameras for concealed weapons detection operate at 94 GHz. A frequency around 77 GHz
GHz
is used for automotive cruise control radar . The atmospheric radio window at 94 GHz
GHz
is used for imaging millimeter-wave radar applications in astronomy, defense, and security applications
[...More...]

"W Band" on:
Wikipedia
Google
Yahoo

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
[...More...]

"Band I" on:
Wikipedia
Google
Yahoo

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
[...More...]

"Ku Band" on:
Wikipedia
Google
Yahoo

picture info

X Band
The X BAND is the designation for a band of frequencies in the microwave radio region of the electromagnetic spectrum . In some cases, such as in communication engineering , the frequency range of the X band
X band
is rather indefinitely set at approximately 7.0 to 11.2 GHz . In radar engineering, the frequency range is specified by the IEEE at 8.0 to 12.0 GHz. The X band
X band
is used for radar , satellite communication , and wireless computer networks
[...More...]

"X Band" on:
Wikipedia
Google
Yahoo

N Band (NATO)
The NATO N BAND is the designation given to the radio frequencies from 100 to 200 GHz
GHz
(equivalent to wavelengths between 3 mm and 1.5 mm) used by US armed forces and SACLANT in ITU Region 2 . The NATO N band
N band
is also a subset of the EHF band as defined by the ITU . PARTICULARITIESThe NATO N band
N band
is not subject to the NATO Joint Civil/Military Frequency
Frequency
Agreement (NJFA). However, military requirement, which may apply to the NATO operations in ITU Region 1 , are subject to coordination with the appropriate frequency administration concerned
[...More...]

"N Band (NATO)" on:
Wikipedia
Google
Yahoo

L Band
The L BAND is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz)
[...More...]

"L Band" on:
Wikipedia
Google
Yahoo

S Band
The S BAND is a designation by the Institute of Electrical and Electronics Engineers (IEEE) for a part of the microwave band of the electromagnetic spectrum covering frequencies from 2 to 4 gigahertz (GHz). Thus it crosses the conventional boundary between the UHF and SHF bands at 3.0 GHz. The S band is used by weather radar , surface ship radar , and some communications satellites , especially those used by NASA
NASA
to communicate with the Space Shuttle
Space Shuttle
and the International Space Station
International Space Station
. The 10 cm radar short-band ranges roughly from 1.55 to 5.2 GHz
[...More...]

"S Band" on:
Wikipedia
Google
Yahoo

picture info

C Band (IEEE)
The C-BAND is a designation by the Institute of Electrical and Electronics
Electronics
Engineers (IEEE) for a portion of the electromagnetic spectrum in the microwave range of frequencies ranging from 4.0 to 8.0 gigahertz (GHz); however, this definition is the one followed by radar manufacturers and users, not necessarily by microwave radio telecommunications users. The C-band (4 to 8 GHz
GHz
) is used for many satellite communications transmissions, some Wi-Fi
Wi-Fi
devices, some cordless telephones , and some weather radar systems . The communications C-band was the first frequency band that was allocated for commercial telecommunications via satellites. The same frequencies were already in use for terrestrial microwave radio relay chains
[...More...]

"C Band (IEEE)" on:
Wikipedia
Google
Yahoo

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
[...More...]

"Band II" on:
Wikipedia
Google
Yahoo

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
[...More...]

"Band III" on:
Wikipedia
Google
Yahoo

picture info

Medium Wave
MEDIUM WAVE (MW) is the part of the medium frequency (MF) radio band used mainly for AM radio broadcasting . For Europe
Europe
the M W band ranges from 526.5 kHz to 1606.5 kHz, using channels spaced every 9 kHz, and in North America
North America
an extended MW broadcast band ranges from 525 kHz to 1705 kHz, using 10 kHz spaced channels
[...More...]

"Medium Wave" on:
Wikipedia
Google
Yahoo

picture info

Kilohertz
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
[...More...]

"Kilohertz" on:
Wikipedia
Google
Yahoo
.