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A US Army signaller (25Q) erecting a 30-meter mast antenna Royal Navy signaller with signal flags, 1940. A signaller, signalman, colloquially referred to as a radioman or signaleer [1] in the armed forces is a specialist soldier, sailor or airman responsible for military communications.
Along with the Signal Corps' tactical FM radio, also developed in the 1930s, radar was the most important communications development of World War II. During World War I, women switchboard operators, known as the "Hello Girls", were sworn into the U.S. Army Signal Corps.
The SCR-536 is often considered the first of modern hand-held, self-contained, "handie talkie" transceivers (two-way radios). It was developed in 1940 by a team led by Don Mitchell, chief engineer for Galvin Manufacturing (now Motorola Solutions) and was the first true hand-held unit to see widespread use. [1]
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 SCR-508 radio was a mobile Signal Corps Radio used by the U.S. Army during World War II, for short range ground communications.The SCR-508 series radio represented the Army's commitment to both FM and crystal tuning, and was used extensively by armor and mechanized units.
The SCR-300, designated AN/VRC-3 under the Joint Electronics Type Designation System, was a portable radio transceiver used by US Signal Corps in World War II. This backpack -mounted unit was the first radio to be nicknamed a " walkie talkie ".
War correspondents and press reporters frequently made use of the SCR-299 and SCR-399. Access to the sets was provided to them by US Second Army and US Third Army Group Communications Teams, and in one instance, the SCR-399 became the only means of getting press copy direct to London. [6]
The positions generally found in the ship's 'Radio Shack' included - Broadcast Operator: Responsible for keeping track of incoming traffic. Task Group Orestes (TGO) Operator: Responsible for the operation of a teletypewriter circuit, and the use of signals while communicating with ships in the general operating area of the designated task force ...