Signal Corps Radio


Signal Corps Radios were U.S. Army military communications components that comprised "sets". Under the Army Nomenclature System, the abbreviation SCR initially designated "Set, Complete Radio", but was later misinterpreted as "Signal Corps Radio."[1]




Example of a Signal Corps Radio set: the SCR-300-A




Contents





  • 1 Nomenclature


  • 2 SCR radio sets


  • 3 SCS


  • 4 Additional Designators


  • 5 SCR communication radios by branch use


  • 6 Radar


  • 7 See also


  • 8 References


  • 9 External links




Nomenclature


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. Only a few system designators were used:


SCM Set, Complete, Meteorological

SCR Set, Complete, Radio

SCS Set, Complete, System


SCR radio sets


The U.S. Signal Corps used the term "sets" to denote specific groupings of individual components such as transmitters, receivers, power supplies, handsets, cases, and antennas. SCR radio sets ranged from the relatively small SCR-536 "handie talkie" to high-powered, truck-mounted mobile communications systems like the SCR-299 and large microwave radar systems such as the SCR-584 radar.



SCS


The SCS designator was applied to groups of SCR-numbered sets comprising an extensive system, such as multiple radio sets employed in a ground-based fighter direction/control center. The SCR designator could be a single transmitting or receiving set, or a full set of both transmitting and receiving equipment.



Additional Designators


An additional designator, "RC" was used for subsystems or groups of accessories. The Joint Electronics Type Designation System which came into use in 1943 absorbed or superseded the SC designations.[2]



SCR communication radios by branch use


This is only a general list, quite a few radios crossed over between branches.[3]



















Radar



  • SCR-268 searchlight and gun control


  • SCR-270 mobile long range early warning, VHF


  • SCR-271 fixed long range early warning, VHF


  • SCR-277 Radio range


  • SCR-289 improved -270


  • SCR-527 medium range, VHF


  • SCR-584 gun control, microwave


  • SCR-658 weather balloon tracker


  • SCR-784 light weight 584


See also



  • U.S. Signal Corps

  • Joint Electronics Type Designation System

  • List of U.S. Signal Corps Vehicles

  • List of World War II electronic warfare equipment


References




  1. ^ Getting the message through: A Branch History of the U.S. Army Signal Corps. Government Printing Office. 1996. pp. 172–. ISBN 978-0-16-087281-5. 


  2. ^ Mote, Ray. "World War Two Nomenclature Systems". Electric Radio Magazine, June/July 1995. Retrieved 8 January 2016. 


  3. ^ "TM 11-227 RADIO COMMUNICATION EQUIPMENT APRIL 1944". Retrieved 8 January 2016. 




External links



  • http://sdr.lib.umich.edu/cgi/pt?id=mdp.39015062770162 signal corps storage catalogue 1920


  • https://earlyradiohistory.us/1916sc.htm early systems

  • http://www.qsl.net/pe1ngz/army/army-us/us-comm.html


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