effective height

effective height
действующая высота (антенны)

English-russian astronautics dictionary. - M.: Military Publishing house. . 1964.

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  • Effective height — In telecommunication, the term effective height can refer to the height of the center of radiation of an antenna above the effective ground level. Or in low frequency applications involving loaded or nonloaded vertical antennas, the moment of the …   Wikipedia

  • effective height — The height of a mill dam at which, the dam, being in good condition, will flow land, unaffected by changes in seasons or occasional leakage. Carr v Piscataquis Woolen Co. 110 Me 184, 85 A 497 …   Ballentine's law dictionary

  • Height above average terrain — (HAAT) (or less popularly, EHAAT, Effective Height Above Average Terrain) is used extensively in FM radio and television, as it is actually much more important than effective radiated power (ERP) in determining the range of broadcasts (VHF and… …   Wikipedia

  • Effective stress — Karl von Terzaghi first proposed the relationship for effective stress in 1936. [http://fbe.uwe.ac.uk/public/geocal/SoilMech/stresses/stresses.htm] For him, the term ‘effective’ meant the calculated stress that was effective in moving soil, or… …   Wikipedia

  • Effective porosity — The term effective porosity lacks a single or straightforward definition. Even some of the terms used in its mathematical description (“Vcl” and “Vsh”) have multiple definitions. However, it is most commonly considered to represent the porosity… …   Wikipedia

  • Effective radiated power — In radio telecommunications, effective radiated power or equivalent radiated power (ERP) is a standardized theoretical measurement of radio frequency (RF) energy [cite web title = Abbreviations and Acronyms publisher = Institute for… …   Wikipedia

  • Height above average terrain — Die Effektive Antennenhöhe (kurz: Effektive Höhe, englisch: Effective Antenna Height) ist die Höhe des Antennenmittelpunktes über dem mittleren Geländeniveau zwischen 3 km und 15 km Entfernung in die zur Berechnung der Wellenausbreitung… …   Deutsch Wikipedia

  • virtual height — noun : the effective height of a layer of ionized gas in the atmosphere by which radio waves are reflected around the earth s curvature …   Useful english dictionary

  • Human height — Tall redirects here. For other uses, see Tall (disambiguation). Human height is the distance from the bottom of the feet to the top of the head in a human body standing erect. When populations share genetic background and environmental factors,… …   Wikipedia

  • Temporary Provisions Effective During the Period of Communist Rebellion — The Temporary Provisions Effective During the Period of Communist Rebellion (zh tp |t=動員戡亂時期臨時條款|p=Dòngyuán kānluàn shíqī línshí tiáokuǎn) was a series of temporary constitutional provisions passed by the National Assembly of the Republic of… …   Wikipedia

  • Hauteur effective de l'antenne — La hauteur effective de l antenne (HAAT, anglais : Height above average terrain) est largement utilisée dans la radio FM et la télévision, du fait qu elle est en réalité beaucoup plus importante que la puissance apparente rayonnée (ERP) dans …   Wikipédia en Français

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