ground-wave transmission

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• Ground Wave Emergency Network — The Ground Wave Emergency Network (GWEN) was a command and control communications system intended for use by the United States government to facilitate military communications during a nuclear war. The network was implemented as an array of… …   Wikipedia

• Transmission line — This article is about the radio frequency transmission line. For the power transmission line, see electric power transmission. In communications and electronic engineering, a transmission line is a specialized cable designed to carry alternating… …   Wikipedia

• Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …   Wikipedia

• Surface wave — Diving grebe creates surface waves In physics, a surface wave is a mechanical wave that propagates along the interface between differing media, usually two fluids with different densities. A surface wave can also be an electromagnetic wave guided …   Wikipedia

• Medium wave — Main article: Medium frequency Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM broadcasting. For Europe the MW band ranges from 526.5 kHz to 1606.5 kHz[1] and in North America an extended MW… …   Wikipedia

• Single-wire transmission line — A single wire transmission line (or single wire method) is a method of supplying electrical power through a single wired electrical conductor. Single wire earth return (SWER) or single wire ground returns today supply single phase electrical… …   Wikipedia

• Extraordinary optical transmission — (EOT) is an opticalphenomenon that happens in slits that are narrower than the wavelength of the light [Ebbesen, T. W.; Ghaemi, H. F.; Thio, Tineke; Grupp, D. E.; Lezec, H. J, Extraordinary Optical Transmission through Sub wavelength Hole Arrays …   Wikipedia

• surface wave — The part of a radio transmission that follows the earth’s surface. The same as a ground wave. See space wave …   Aviation dictionary

• Manual transmission — Transmission types Manual Sequential manual Non synchronous Preselector Automatic Manumatic Semi automatic Electrohydraulic …   Wikipedia

• Electric power transmission — Electric transmission redirects here. For vehicle transmissions, see diesel electric transmission. 400 kV high tension transmission lines near Madrid Electric power transmission or high voltage electric transmission is the bulk transfer of… …   Wikipedia

• Standing wave ratio — In telecommunications, standing wave ratio (SWR) is the ratio of the amplitude of a partial standing wave at an antinode (maximum) to the amplitude at an adjacent node (minimum), in an electrical transmission line. The SWR is usually defined as a …   Wikipedia