SCR-189
{{Short description|US Army radio set}}
{{Infobox weapon
|name=SCR-189
| image= SCR-189 scout car.jpg
| image_size = 300
|caption=SCR-189 in T1 Scout Car
|origin= United States
|type= Vehicle radio
|service= standardized 1933
|used_by=US Army
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|design_date= 1932
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|variants=1
|is_vehicle=yes
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|primary_armament=none
|armour=none
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The SCR-189 was a mobile Signal Corps Radio tested by the United States Army before World War II. It was designed for armored forces, and mounted in the Six Ton Tank M1917. The original production run of these tanks included 50 "radio tanks" but the original radio components are unknown, so what or how many tanks were fitted with the SCR-189 also appears to be unknown.{{cite book|author=United States. National Bureau of Standards|title=Standards yearbook|url=https://books.google.com/books?id=8G3tuGZbKxsC&pg=PA87|year=1927|publisher=U.S. Govt. Print. Off.|pages=87–}}{{cite book|author=United States. War Dept|title=Technical Regulations: TR.|url=https://books.google.com/books?id=HiAtAAAAIAAJ}}
Use
An early tactical vehicle radio, it was the first Army set to utilize the Superheterodyne receiver. As the M1917 tank was phased out, the new M1 Combat Car and M2 Light Tank were equipped with SCR-189's. The SCR-189 was replaced by the SCR-245 in 1937.{{cite book|author=R. P. Hunnicutt|title=A History of the American Light Tank: Stuart|url=https://books.google.com/books?id=JzEhAQAAIAAJ|date=1 June 1992|publisher=Presidio|isbn=978-0-89141-462-9}}{{cite web |last1=Clark |first1=Chad G. |title=RADIO TO FREE EUROPE: ARMORED FORCE RADIO DEVELOPMENT, GREAT BRITAIN AND THE UNITED STATES 1919-1941 |url=http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA366376 |website=Defense Technical Information Center (DTIC) |publisher=US Government/University of Nebraska |accessdate=27 December 2018 |archiveurl=https://web.archive.org/web/20160303232927/http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA366376 |archivedate=March 3, 2016 |date=1998 |url-status=dead |quote=The SCR-189 and Mechanized Cavalry, 1935-1938}}
Components
- BC-175 Receiver
- BC-176 Transmitter CW/voice, 2.200 kHz, to 2.600 kHz at 7.5 Watt, range 8 Miles
- BC-177 Control box
- BC-206 Control box
- PE-48 Power supply
- Battery box BX-3 (Battery BA-27)
Variants
- SCR-190 Receiver only set
See also
References
{{Reflist}}
External links
- https://web.archive.org/web/20100413132056/http://www.gordon.army.mil/ocos/museum/equipment.asp scr and bc lists
Category:Radio systems of the United States Army