Frequency Shift Converter URA-8A CV-89A

MILITARY U.S. (different makers for same model)

  • Year
  • 1955 ?
  • Category
  • Miscellaneous (Other, Various) - see notes
  • Radiomuseum.org ID
  • 120816

 Technical Specifications

  • Main principle
  • RF Converter/Adapter (not voltage converter)
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Frequency Shift Converter URA-8A [CV-89A] - MILITARY U.S. different makers
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Notes
  • Radioteletype / FSK converter used to convert FSK signals to impulses to control a teletypewriter.
    Variable shift around 850 Hz, internal CRT scope to control receiver tuning.
    By means of the CM-22A comparator, the better quality signal coming from one of two CV-89A could automatically been switched to the connected teletypewriter.
    Built for US Navy, also used by Royal Navy for maritime traffic.
    Different contractors, e.g. Hoffman Laboratories Inc., Los Angeles, CA.
  • Source of data
  • -- Original-techn. papers.
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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