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During World War One, the U.S. Navy purchased Federal Telegraph, but after the end of the war a displeased U.S. Congress ordered the Navy to return the company to its original owners. [2] The company was acquired in August 1927 by the Mackay Companies, and was renamed the Mackay Radio and Telegraph Company (California). [3]
The term SCR was part of a nomenclature system developed for the U.S. Signal Corps, used at least as far back as World War I.Three-letter designators beginning with "SC" were used to denote complete systems, while one and two-letter designators (such as "BC", for basic component, "FT" for mounting, etc.) were used for components.
With the end of the war and the Dominions continuing to apply pressure on the government to provide an "Imperial wireless system", [8] the House of Commons agreed in 1919 that £170,000 should be spent constructing the first two radio stations in the chain, in Oxfordshire (at Leafield) and Egypt (in Cairo), to be completed in early 1920 [10] – although in the event the link opened on 24 ...
Use of the Eiffel Tower as a listening station to intercept wireless telegraphy (French: télégraphie sans fil T.S.F.) 1914 British radio listening station from the Second World War, equipped with the National HRO shortwave radio receivers The radomes of listening station RAF Menwith Hill, England, often referred to as "golf balls", protect the parabolic antennas from the weather.
Before the development of radar and other electronics techniques, signals intelligence (SIGINT) and communications intelligence (COMINT) were essentially synonymous. Sir Francis Walsingham ran a postal interception bureau with some cryptanalytic capability during the reign of Elizabeth I, but the technology was only slightly less advanced than men with shotguns, during World War I, who jammed ...
From 1943 to the end of World War II, Goliath was the main radio transmitter for German submarine radio communications, operating on frequencies between 15 and 25 kHz with a main working frequency of 16.55 kHz (a wavelength of 18,114 metres).
A trench magazine (also known as a trench journal or trench periodical) describes a type of publication made by and for soldiers during the First World War while living in the trenches. These magazines appear solely within the time frame of World War I (1914-1918), and within Europe, with most being British, French, or German. [ 1 ]
The Women's Radio Corps was established during World War I by Edna Owen and an advisory council consisting of many influential figures in the field of wireless communications: Gano Dunn, past president of the American Institute of Electrical Engineers; Alfred Goldsmith, co-founder of the Institute of Radio Engineers; Edward J. Nally, vice president and general manager of the Marconi Wireless ...