- low-frequency wave
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низкочастотная волна
English-Russian dictionary of geology. 2011.
low-frequency wave
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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 radar — is the use of radars which use frequencies lower than 1 GHz, as opposed to the usual Radar bands which can range from the X band at 8 12 GHz to the Ka band which tops out at 40 GHz.The radar cross section of any target depends on the radar… … 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 — ˈ ̷ ̷| ̷ ̷ ̷ ̷ ̷ ̷ adjective Etymology: low frequency : of or relating to low frequency or a radio wave having such a frequency … Useful english dictionary
low frequency — radio wave having a long wavelength … English contemporary dictionary
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
Extremely low frequency — (ELF) is the band of radio frequencies from 3 to 30 Hz. ELF was used by the US Navy and Soviet/Russian Navy to communicate with submerged submarines.ExplanationBecause of the electrical conductivity of salt water, submarines are shielded from… … Wikipedia
very-low-frequency — adjective : of or relating to very low frequency or to a radio wave having such a frequency … Useful english dictionary
Wave–particle duality — Quantum mechanics Uncertainty principle … Wikipedia
Wave radar — Ocean surface waves can be measured by several radar remote sensing techniques. Several instruments based on a variety of different concepts and techniques are available to the user and these are all often called wave radars. This article (see… … Wikipedia
frequency — Synonyms and related words: AF, CPS, EHF, HF, Hz, MF, RF, SHF, UHF, VHF, VLF, amplitude, antinode, audio frequency, carrier frequency, crest, cycles, de Broglie wave, diffraction, electromagnetic radiation, electromagnetic wave, extremely high… … Moby Thesaurus
