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high (low) frequency

См. также в других словарях:

  • Low frequency — or LF refers to Radio Frequencies (RF) in the range of 30 kHz ndash;300 kHz. In Europe, and parts of Northern Africa and of Asia, part of the LF spectrum is used for AM broadcast service. In the western hemisphere, its main use is for aircraft… …   Wikipedia

  • Low-frequency effect — Low Frequency Effects (LFE) is the name of an audio track specifically intended for deep, low pitched sounds ranging from 3 200 Hz. This track is normally sent to a speaker that is specially designed for low pitched sounds called the subwoofer or …   Wikipedia

  • Low-frequency oscillation — The term low frequency oscillation (LFO) is an audio signal usually below 20 Hz which creates a pulsating rhythm rather than an audible tone. LFO predominantly refers to an audio technique specifically used in the production of electronic music.… …   Wikipedia

  • Low frequency — Basse fréquence Pour les articles homonymes, voir BF et LF. La bande radioélectrique des basses fréquences ou LF (low frequency) est la partie du spectre radioélectrique de fréquence comprise entre 30 kHz et 300 kHz (longueur d onde de… …   Wikipédia en Français

  • Very low frequency — or VLF refers to radio frequencies (RF) in the range of 3 kHz to 30 kHz. Since there is not much bandwidth in this band of the radio spectrum, only the very simplest signals are used, such as for radio navigation. Also known as the myriameter… …   Wikipedia

  • low frequency — noun 1. 30 to 300 kilohertz (Freq. 2) • Syn: ↑LF • Hypernyms: ↑radio frequency • Part Holonyms: ↑electromagnetic spectrum 2. a pitch that is perceived as below other pitches …   Useful english dictionary

  • Survivable Low Frequency Communications System — The Survivable Low Frequency Communications System is a communications system designed to be able to operate, albeit at low data transfer rates, during and after a nuclear attack. [cite web url = http://www.globalsecurity.org/wmd/systems/slfcs.htm… …   Wikipedia

  • frequency — noun 1 (U) the number of times that something happens (+ of): The frequency of mining accidents has steadily decreased over the past 20 years. | high/low frequency (=happening very often or not often): The high frequency of cases of diarrhoea is… …   Longman dictionary of contemporary English

  • frequency — n. number of repetitions 1) alarming; great, high; low frequency 2) with frequency (with alarming frequency) number of periodic waves per unit of time (physics) 3) high; low; medium frequency 4) a radio frequency 5) on a frequency * * * [… …   Combinatory dictionary

  • frequency — fre|quen|cy W3 [ˈfri:kwənsi] n plural frequencies 1.) [U] the number of times that something happens within a particular period of time or within a particular group of people frequency of ▪ the frequency of serious road accidents the high/low… …   Dictionary of contemporary English

  • frequency */*/*/ — UK [ˈfriːkwənsɪ] / US [ˈfrɪkwənsɪ] noun Word forms frequency : singular frequency plural frequencies 1) [uncountable] the number of times that something happens during a period of time frequency of: Changes in sea temperature will increase the… …   English dictionary

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