Chronology of call letters KYAA

First station

• Date: October 12, 2001-October 25, 2001
• Previous call letters: KOQI
• Frequency:
  • 1200 kHz (October 12, 2001-October 25, 2001)
• Location:
  • Soquel, California (October 12, 2001-October 25, 2001)
• Subsequent call letters: KSRK (Traded call on October 25, 2001.)

Second station

• Date: October 25, 2001-December 4, 2001
• Previous call letters: KSRK (Traded call on October 25, 2001.)
• Frequency:
  • 540 khz (October 25, 2001-December 4, 2001)
• Location:
  • Carmel Valley, California (October 25, 2001-December 4, 2001)
• Subsequent call letters: KSRK

Third station

(Actually same station as first, after 2 call sign changes)

• Date: December 4, 2001-2016...
• Previous call letters: KSRK (Traded call on December 4, 2001.)
• Frequency:
  • 1200 kHz (December 4, 2001-2016...)
• Location:
  • Soquel, California (December 4, 2001-2016...)
• Owner of license:
  • IHR Educational Broadcasting (...2016...)