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词条 SCR-299
释义

  1. History

  2. Specifications

  3. See also

  4. Notes

  5. References

  6. External links

The SCR-299 was a U.S. Signal Corps mobile military communications unit used during World War II.

History

The SCR-299 "mobile communications unit" was developed to provide long-range communications during World War II. The US Military sought improvements of range, flexibility and durability over its existing SCR-197 and SCR-597 transmitters. In 1942, Hallicrafters Standard HT-4 was selected as the SCR-299's transmitter, known subsequently by its military designation as the BC-610. The SCR-299 was first used on November 8, 1942 during Operation TORCH involving companies of the 829th Signal Service Battalion establishing a radio net that could exchange messages between beach-landed forces and bases in Gibraltar. Despite initial problems unloading the sets from convoy ships, the SCR-299s served until the installation of permanent Army Command and Administrative Network stations.[1] According to US Army military historians, "General Dwight Eisenhower credited the SCR-299 in his successful reorganization of the American forces and final defeat of the Nazis at Kasserine Pass."[2]

The range of the SCR-299 exceeded original specifications, sometime establishing contact over {{convert|2300|mi|km}}.[3]

The SCR-299 provided reliable communications with England during the North African campaign, and in Normandy on D-Day, served as a connection between two airborne divisions with Britain.[4] The SCR-299 was also used in the invasion of Sicily and the Allied invasion of Italy.[2]

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.[5]

In 1944, a short subject film was produced by the Jam Handy Organization and sponsored by the Hallicrafters Company that showed the construction of the SCR-299 and dramatized its use during World War II.[6][7]

Hallicrafters Company advertising of the period sometimes used illustrations of the shelter-mounted SCR-399 to describe the achievements of the SCR-299.[8]

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Specifications

  • Transmitter: BC-610 plus BC-614 (speech amplifier), BC-729 (tuning unit) and BC-211 (frequency meter)
  • Transmitter output power: 350 watts.
  • Receivers: BC-312 and BC-342
  • Frequency coverage: HF from 2 to 8 MHz (and 1–18 MHz using conversion kits)
  • Power supply: 2000 watts, with additional 1500 watts for heater and lights supplied by PE-95 (power unit) on K-52 "Ben-Hur" style trailer. Optional 12 volt storage battery, or 115 volt 60 cycle AC commercial power and two spare 6 volt storage batteries
  • SCR-299 housing: K-51 van truck
  • SCR-399 housing: HO-17 shelter mountable on 2{{frac|1|2}}-ton trucks.
  • SCR-499 housing: air-transportable
  • Frequency Conversion Kit MC-503: coverage down to 1 MHz.
  • Frequency Conversion Kit MC-516: coverage to 12 MHz
  • Frequency Conversion Kit MC-517: coverage to 18 MHz.
  • Antennas: {{convert|9|ft|m|adj=on}} whip antenna (receiver), {{convert|15|ft|m|adj=on}} whip antenna (transmitter). Optional {{convert|21|ft|m|abbr=on}} whip antenna while stationary or {{convert|45|ft|m|abbr=on}} auxiliary wire antenna for 2.0 to 4.5 MHz coverage.[9]
  • Remote control: field telephones, control boxes and cable.[10][11]

See also

  • ARC-5
  • BC-348
  • BC-654
  • BC-610
  • Collins Radio
  • Hallicrafters SX-28
  • M-209
  • R-390A
  • SCR-300
  • SCR-536
  • Signal Corps Radio
  • Wireless Set No. 19
  • List of U.S. Signal Corps Vehicles

Notes

1. ^Fort Huachuca Scout, January 22, 2009. Signal Corps carries the Torch, by Kristen Gregan, NETCOM Historical Staff
2. ^The SCR-299, United States Army Signal Center, Fort Gordon, GA {{webarchive|url=https://web.archive.org/web/20100105221519/http://www.gordon.army.mil/ocos/ac/WWII/SCR299.asp |date=2010-01-05 }}
3. ^The SCR299, Army Communicator United States Army Signal Center, Fort Gordon, GA {{webarchive|url=https://web.archive.org/web/20100105221519/http://www.gordon.army.mil/ocos/ac/WWII/SCR299.asp |date=2010-01-05 }}
4. ^{{cite web|url=https://books.google.com/books?id=0bRaa7UuD6EC|title=The Library of Congress World War II Companion|first=David M.|last=Kennedy|date=2 October 2007|publisher=Simon and Schuster|via=Google Books}}
5. ^{{cite web|url=http://www.history.army.mil/html/reference/normandy/TS/SC/SC3.htm|title=Normandy - The Technical Services : Signal Corps|publisher=}}
6. ^{{cite web|url=https://archive.org/details/VoiceofV1944|title=Voice of Victory (Part I)|first=|last=Handy (Jam) Organization|date=1 January 1944|publisher=|via=Internet Archive}}
7. ^{{cite web|url=https://archive.org/details/VoiceofV1944_2|title=Voice of Victory (Part II)|first=|last=Handy (Jam) Organization|date=1 January 1944|publisher=|via=Internet Archive}}
8. ^Dachis, Chuck (1996). Radios By Hallicrafters. Schiffer Publishing,Atglen(USA).
9. ^Directory Of Components, The SCR299, Army Communicator United States Army Signal Center, Fort Gordon, GA
10. ^Fort Gordon Museum, Transportable Sets
11. ^Fort Gordon Museum

References

  • [https://www.scribd.com/doc/246660060/TM-11-227-RADIO-COMMUNICATION-EQUIPMENT-APRIL-1944 TM 11-227], 10 April 1944
  • TM 11-280-B
  • [https://www.scribd.com/doc/251665566/TM-11-487-OCTOBER-1944 TM 11-487] Oct. 1944, page 406

External links

  • Hallicrafters HT-4, to War and home again
  • [https://web.archive.org/web/20100105221519/http://www.gordon.army.mil/ocos/ac/WWII/SCR299.asp The SCR299, Army Communicator United States Army Signal Center, Fort Gordon, GA]
  • [https://web.archive.org/web/20100413132056/http://www.gordon.army.mil/ocos/museum/equipment.asp SCR and BC list]
  • US Army training film featuring K-55 trailer and SCR-299
  • [https://web.archive.org/web/20090621085147/http://jptronics.org/radios/Military/JANAP161/ Directory of Communications Electronic Equipment]
  • BC-610 data sheet
  • [https://www.youtube.com/watch?v=TURd_XVpwvk Voice of victory]
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3 : Military radio systems of the United States|World War II American electronics|Military electronics of the United States

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