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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.
SCR-508 American tank radio first fielded in WWII with similar specifications and performance, 20.000 MHz - 27.900 MHz frequency coverage, FM voice. SCR-608 American WWII era artillery radio, identical to SCR-508 except operated in the 27 MHz - 38.9 MHz frequency range instead of 20-27.9 MHz.
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.
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The SCR-300 operated in the 40.0 to 48.0 MHz frequency range, and was channelized. Along with other mobile FM tank and artillery radios such as the SCR-508 (20.0 to 27.9 MHz) and the SCR-608 (27.0 to 38.9 MHz), the SCR-300 marked the beginning of the transition of combat-net radio from low-HF AM/CW to low-VHF FM. [2]
The SCR-245 was standardized on 10 June 1937, and used by Armored forces for command and control of tank units. It replaced the earlier SCR-189 and was used primarily in the early M2, M3 light tanks as well as the early M3 medium tanks. Their large size required them to be mounted in the tanks sponsons. It was replaced by the SCR-508 sets. [1 ...
The total weight was limited to 39.7 tonnes. [1] The Lorraine 40t featured a pike nose design similar to the IS-3.It had an oscillating turret like the AMX-50. [2] The Lorraine 40t mounted a 100 mm SA47 gun fed from a drum autoloader similar to that of the AMX-50 project.
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