- allocated (frequency )band
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выделенный диапазон частот
Англо-русский словарь технических терминов. 2005.
allocated (frequency )band
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Frequency-division multiple access — or FDMA is an channel access method that is used by radio systems to share a certain radio spectrum between multiple users. The users are individually allocated one or several frequency bands, allowing them to access the radio system without… … Wikipedia
Frequency allocation — The electromagnetic spectrum is an aspect of the physical world which, like land, water, and air, is subject to usage limitations. Use of radio frequency bands of the electromagnetic spectrum is regulated by governments in most countries, in a… … Wikipedia
Citizens' band radio — Typical 1980s CB base station, used with outdoor antenna. This radio may also be used in an automobile, since it is powered by 13.8V DC. Shown with Astatic Power D 104 desk mic … Wikipedia
Ku band — The Ku band (pronounced kay yoo ) is a portion of the electromagnetic spectrum in the microwave range of frequencies. This symbol refers to K under (in the original German, Kurz unten , with the same meaning) in other words, the band directly… … Wikipedia
Very high frequency — (VHF) is the radio frequency range from 30 MHz to 300 MHz. Frequencies immediately below VHF are denoted High frequency (HF), and the next higher frequencies are known as Ultra high frequency (UHF). The frequency allocation is done by ITU. Common … Wikipedia
4-metre band — 4 metres (4 m, 70 MHz) is an amateur radio frequency band in the lower Very High Frequency spectrum. Traditionally allocated only in a small number of countries in Europe and Africa, the decline in VHF television broadcasts, movement away from… … Wikipedia
80-meter band — The 80 meter or 3.5 MHz band is a core amateur radio frequency band, allocated frequencies from 3.5 to 4.0 MHz in IARU Region 2, and generally 3.5 to 3.8 or 3.9 MHz in Regions 1 and 3 respectively. The portion of the band used for voice… … Wikipedia
33-centimeter band — 33 Centimeters is an amateur radio band. It ranges from 902 to 928 MHz and is unique to ITU Region 2. The 33 centimeter band is part of the UHF spectrum, and is primarily used for very local communications as opposed to bands lower in… … Wikipedia
10-meter band — The 10 meter band is a portion of the shortwave radio spectrum allocated to amateur radio use. The band consists of frequencies stretching from 28.000 MHz to 29.700 MHz.HistoryThe 10 meter band was created by the… … Wikipedia
160-meter band — Just above the mediumwave broadcast band, 160 meters is the lowest radio frequency band allocation available to amateur radio operators in most countries. Seasoned operators often refer to 160 meters as Top Band, it is also sometimes referred to… … Wikipedia
Orthogonal frequency-division multiplexing — Passband modulation v · d · e Analog modulation AM · … Wikipedia
