Chronology of call letters NAA

From Radio-TV Broadcast History

• Date: ...June 30, 1926-June 30, 1928... ( Note: Shown as involved in the May 15, 1923 frequency changes; no other evidence of being on the air that early.)
• Frequency:
  • 690 khz (...June 30, 1926-June 30, 1928...)
• Location:
  • Arlington, Virginia (...June 30, 1926-June 30, 1928...)
• Owner of license:
  • U. S. Navy (...June 30, 1926-June 30, 1928...)