broadcast telegraph repeater

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• 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

• 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

• Gramophone record — A 12 inch (30 cm) 33⅓ rpm record (left), a 7 inch 45 rpm record (right), and a CD (above) A gramophone record, commonly known as a phonograph record (in American English), vinyl record (in reference to vinyl, the material most commonly used after …   Wikipedia

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• Amateur television — Fast scan redirects here. For the ultrasound assessment used in trauma, see Focused assessment with sonography for trauma. Amateur television (ATV) is the transmission of Broadcast quality video and audio over the wide range of frequencies of… …   Wikipedia

• Communications on the Isle of Man — The Isle of Man benefits from an extremely modern and extensive communications infrastructure, which underpins the main sectors of the Island s economy.TelecommunicationsTelegraphThe history of Manx telecommunications starts in 1859, when the… …   Wikipedia

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