counterpoise earth
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Counterpoise (ground system) — A counterpoise is a type of electrical ground that is not connected to earth. It is used in radio antenna systems when a normal earth ground cannot be used because of high soil resistance[1] It consists of a network of wires or cables (or a metal … Wikipedia
counterpoise — /ˈkaʊntəpɔɪz/ (say kowntuhpoyz) noun 1. a counterbalancing weight. 2. any equal and opposing power or force. 3. the state of being in equilibrium. 4. an artificial earth plane used to increase the sensitivity of an aerial. –verb (t)… …
military technology — Introduction range of weapons, equipment, structures, and vehicles used specifically for the purpose of fighting. It includes the knowledge required to construct such technology, to employ it in combat, and to repair and replenish it.… … Universalium
Antenna (radio) — Whip antenna on car … Wikipedia
VHF omnidirectional range — This article is about the radio navigation aid. For other uses, see Vor. D VOR (Doppler VOR) ground station, co located with DME … Wikipedia
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium
Set — 1. v. (setting; past and past part. set) 1 tr. put, lay, or stand (a thing) in a certain position or location (set it on the table; set it upright). 2 tr. (foll. by to) apply (one thing) to (another) (set pen to paper). 3 tr. a fix ready or in… … Useful english dictionary
set — 1. v. (setting; past and past part. set) 1 tr. put, lay, or stand (a thing) in a certain position or location (set it on the table; set it upright). 2 tr. (foll. by to) apply (one thing) to (another) (set pen to paper). 3 tr. a fix ready or in… … Useful english dictionary
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
Russia — /rush euh/, n. 1. Also called Russian Empire. Russian, Rossiya. a former empire in E Europe and N and W Asia: overthrown by the Russian Revolution 1917. Cap.: St. Petersburg (1703 1917). 2. See Union of Soviet Socialist Republics. 3. See Russian… … Universalium
Lightning rod — A lightning rod (USA) or lightning conductor (UK) is a single component in a lightning protection system. In addition to rods placed at regular intervals on the highest portions of a structure, a lightning protection system typically includes a… … Wikipedia
