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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.
The war resulted in large orders for radio equipment, and the Aldene plant was expanded, with employment in 1917 rising from 200 to 700. [29] Although the overall U.S. government plan was to restore civilian ownership of the seized radio stations once the war ended, many Navy officials hoped to retain a monopoly on radio communication after the ...
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.
Following World War II came the HRO-7 (1947–1949, 12 tubes, including 2 miniature tubes), HRO-50 (1949–1950, built-in tuning dials and power supply, push-pull audio amplifier, improved styling and performance), HRO-50-1 (1951, increased IF selectivity), and HRO-60 (1952–1964, dual conversion for coils B (7–14.4 MHz) and A (14-30 MHz ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 30 December 2024. Military personnel using their native languages for secret wartime communication "Codetalkers" redirects here. For the band, see the Codetalkers. For the Metal Gear Solid V: The Phantom Pain character, see list of characters in the Metal Gear series § Code Talker. Choctaw soldiers in ...
The introduction of radio telegraphy was a significant step in communication during World War I. The stations utilized at that time were spark-gap transmitters . As an example, the information of the start of World War I was transmitted to German South West Africa on 2 August 1914 via radio telegraphy from the Nauen transmitter station via a ...
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]
Pages in category "Radio during World War I" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes. R.