Chronology of call letters CZF

• Date: ...March 1925-April 1928...
• Frequency:
  • 750 kHz (...March 1925...)
  • 923 kHz (...February 27-1926-July 31, 1926...)
  • 968 kHz (...January 31, 1927...)
  • 970 kHz (...April 1928...)
• Location:
  • Chihuahua, Mexico (...March 1925-April 1928...)
• Owner of license:
  • Chihuahua State Broadcasting (...March 1925-January 31, 1927...) ( Note: Listed as "State Capitol" in a list dated January 31, 1927, but this is probably not official licensee name.)
  • State of Chihuahua (...April 1928...) ( Note that this does not actually appear to represent a change in ownership.)