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Radio-TV Broadcast History

Chronology of call letters KOA

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First station

  • Date: March 20, 1922-June 23, 1923
  • Frequency:
    • 619 khz (...April 1, 1922-June 30, 1922...) [concurrently with 833, see history page]
    • 833 khz (...May 15, 1922-June 30, 1922...) [concurrently with 619, see history page]
  • Location:
  • Owner of license:
    • Young Men's Christian Association (...April 1, 1922-May 15, 1922...)


Second station

  • Date: December 13, 1924-March 29, 1941...
  • Frequency:
    • 930 khz (...March 1925-June 30, 1926...)
    • 920 khz (...June 30, 1927-June 30, 1928...)
    • 830 kHz (...March 29, 1941)
    • 850 kHz (March 29, 1941...)
  • Location:
  • Owner of license:

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