- ultrahigh-frequency television
- Техника: телевидение в диапазоне дециметровых волн
Универсальный англо-русский словарь. Академик.ру. 2011.
Универсальный англо-русский словарь. Академик.ру. 2011.
Radio-frequency identification — (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. Some RFID tags can be read from… … Wikipedia
Brown, George Harold — ▪ American engineer born Oct. 14, 1908, North Milwaukee, Wis., U.S. died Dec. 11, 1987, Princeton, N.J. American electrical engineer who made major contributions to the development of radio and television broadcast antennas (antenna).… … Universalium
UHF — abbr. ultra high frequency. * * * noun 300 to 3000 megahertz • Syn: ↑ultrahigh frequency • Hypernyms: ↑radio frequency • Part Holonyms: ↑electromagnetic spectrum * * * abbreviation Usag … Useful english dictionary
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
telecommunications media — Introduction equipment and systems metal wire, terrestrial and satellite radio, and optical fibre employed in the transmission of electromagnetic signals. Transmission media and the problem of signal degradation Every… … Universalium
broadcasting — /brawd kas ting, kah sting/, n. 1. the act of transmitting speech, music, visual images, etc., as by radio or television. 2. radio or television as a business or profession: She s training for a career in broadcasting. [1920 25; BROADCAST + ING1] … 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
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
surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… … Universalium
UHF — See ultrahigh frequency. Also, uhf. * * * ▪ communications abbreviation of Ultrahigh Frequency, conventionally defined portion of the electromagnetic spectrum, encompassing radiations having a wavelength between 0.1 and 1 m and a… … Universalium