Chronology of call letters KDYS

• Date: May 13, 1922-November 30, 1923 ( NOTE: May 13, 1922 is given as the date of license; actual first broadcast is unknown.)
• Frequency:
  • 833 kHz (May 13, 1922-November 30, 1923) [concurrently with 619, see history page]
  • 619 kHz (...September 1, 1922-March 1, 1923...) [concurrently with 833, see history page]
• Location:
  • Great Falls, Montana (May 13, 1922-November 30, 1923)
• Owner of license:
  • The Tribune (May 13, 1922-November 30, 1923)