Универсальный англо-русский словарь. Академик.ру. 2011.
ultrahigh frequency — Frequencies of electromagnetic radiation between 300 and 3000 MHz, or of wavelengths between 100 and 10 cm. These frequencies are mainly used by military for air to air and air to ground voice communications on a line of sight basis. In some… … Aviation dictionary
UHF — (ultrahigh frequency) n. range of radio frequencies between 300 and 3000 megahertz … English contemporary dictionary
UHF — Synonyms and related words: AF, CPS, EHF, HF, Hz, MF, RF, SHF, VHF, VLF, audio frequency, carrier frequency, cycles, extremely high frequency, frequency, frequency spectrum, hertz, high frequency, intermediate frequency, kilocycles, kilohertz,… … Moby Thesaurus
Frequency band designations — ▪ Table Frequency band designations frequency designation frequency range wavelength range very low frequencies (vlf) 3–30 kilohertz 100,000–10,000 m low frequencies (lf) 30–300 kilohertz 10,000–1,000 m medium frequencies (mf) 300–3,000 kilohertz … Universalium
radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… … Universalium
electron tube — an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. Also called electronic tube. Cf. gas tube, vacuum tube … Universalium
Electronic mixer — A simple three channel passive additive mixer. More channels can be added by simply adding more input jacks and mix resistors … Wikipedia
warning system — ▪ military technology Introduction in military science, any method used to detect the situation or intention of an enemy so that warning can be given. Because military tactics from time immemorial have stressed the value of surprise… … Universalium
telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… … Universalium
flight, history of — ▪ aviation Introduction development of heavier than air flying machines. Important landmarks and events along the way to the invention of the airplane include an understanding of the dynamic reaction of lifting surfaces (or wings), building… … Universalium
ultrahighfrequency — ultrahigh frequency n. Abbr. UHF A band of radio frequencies from 300 to 3,000 megahertz. * * * … Universalium
