Radio Set SCR-274-N Command Radio

• País
• Estados Unidos

• Fabricante / Marca
• MILITARY U.S. (different makers for same model)

• Año
• 1940

• Categoría
• Transceptor militar

• Radiomuseum.org ID
• 312216

• Imágenes
• Esquemas

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• Principio principal
• Transceiver

• Gama de ondas
• Onda Corta solamente

• Tensión de funcionamiento
• Bateria recargable / 28 Volt

• Altavoz
• - Este modelo usa amplificador externo de B.F.

• Material
• Metálico

• de Radiomuseum.org
• Modelo: Radio Set SCR-274-N [Command Radio] - MILITARY U.S. different makers

• Forma
• Formas varias descritas en notas aparte.

• Anotaciones

• Radio Set SCR-274-N, Command Radio.

  Communications equipment in modular construction for aircraft use.

  Receivers (Suffix A: 8000 Ohms output; Suffix B 8000 / 600 Ohms output) (powered by Dynamotor DM-32-A) (Adaptor FT-230-A for remote control, Adaptor FT-260-A for local control).

  • BC-453-A / B: 190 - 550 kHz
  • BC-454-A / B: 3.0 - 6.0 MHz
  • BC-455-A / B: 6.0-9.1 MHz
  • BC-946-B: 0.52 - 1.5 MHz

  Receiver Control Box

  • BC-450-A: to control three receivers

  Transmitters:

  • BC-696-A: 3.0 - 4.0 MHz
  • BC-457-A: 4.0 - 5.3 MHz
  • BC-458-A: 5.3 - 7.0 MHz
  • BC-459-A: 7.0 - 9.1 MHz

  Modulator Unit (powered by Dynamotor DM-33-A)

  • BC-456-A (to modulate several transmitters)

  Radio Control Box (to control up to four transmitters)

  • BC-451-A

  Antenna Relay Unit

  • BC-442-A

  Matching headsets / microphones

  • Microphone T-17
  • Headset HS-33

  Matching Test Sets

  • RC-54-A
  • RC-55-A

  The "Type K Command Radio" had been developed in 1936/37 as a modular communications system for Aircraft use (with separate receivers for separate wavebands, separate transmitters, control boxes and accessories),  and had been tested and improved for military use from 1939 on. In 1940, the U.S. Navy started  installing the equipment as RAT / RAV sets and the U.S. Army Air Corps introduced the equipment as SCR-274-N after May 1940.

  From these sets and it's successors AN/ARC-5 some 1,450,000 sets have been produced. Many of these have been sold as surplus and modified by hams in the postwar years, so sets in original condition are becoming rare.

   

• Mencionado en
• -- Original-techn. papers. (AN 08-40SCR274-2)

• Autor
• Modelo creado por Martin Bösch. Ver en "Modificar Ficha" los participantes posteriores.

• Otros modelos

• Donde encontrará 399 modelos, 351 con imágenes y 210 con esquemas.
  Ir al listado general de MILITARY U.S. (different makers for same model)