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telegraph transmission

См. также в других словарях:

  • 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

  • Telegraph stamp — Telegraph stamps are stamps specially printed for the payment of telegrams. The customer completes a telegraph form before handing it with payment for the clerk to stick and cancel the stamp prior to transmission of the telegram. The majority of… …   Wikipedia

  • telegraph — telegrapher /teuh leg reuh feuhr/; esp. Brit., telegraphist, n. /tel i graf , grahf /, n. 1. an apparatus, system, or process for transmitting messages or signals to a distant place, esp. by means of an electric device consisting essentially of a …   Universalium

  • Telegraph key — A straight key style of telegraph key J38 World War II era U.S. military model …   Wikipedia

  • telegraph — I. noun Etymology: French télégraphe, from télé tele (from Greek tēle ) + graphe graph Date: 1794 1. an apparatus for communication at a distance by coded signals; especially an apparatus, system, or process for communication at a distance by… …   New Collegiate Dictionary

  • Telegraph Act de 1869 — Le Telegraph Act de 1869 a institué des tarifs attractifs pour les agences de presse britanniques à une époque où les coûts des communications étaient un obstacle à leur développement. Sommaire 1 Contexte 2 Contenu 3 Promoteurs 4 Conséque …   Wikipédia en Français

  • transmission of intelligence — Communication. The Supreme Court has held that the transmission of intelligence is commerce. The court said: Other commerce deals only with persons, or with visible and tangible things. But the telegraph transports nothing visible and tangible;… …   Ballentine's law dictionary

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

  • Electrical telegraph — A printing electrical telegraph receiver, and a transmitter key at bottom right An electrical telegraph is a telegraph that uses electrical signals, usually conveyed via telecommunication lines or radio. The electromagnetic telegraph is a device… …   Wikipedia

  • NLRB v. Mackay Radio & Telegraph Co. — NLRB v. Mackay Radio Telegraph Co. Supreme Court of the United States Argued April 5–6, 1938 De …   Wikipedia

  • Microwave transmission — The atmospheric attenuation of microwaves in dry air with a precipitable water vapor level of 0.001 mm. The downward spikes in the graph correspond to frequencies at which microwaves are absorbed more strongly, such as by oxygen molecules… …   Wikipedia

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