radio direction finder


a navigational aid establishing a fix by means of the bearings of two known radio stations. Abbreviation: RDF

Nearby words

  1. radio beam,
  2. radio car,
  3. radio collar,
  4. radio compass,
  5. radio control,
  6. radio free europe/radio liberty,
  7. radio frequencies,
  8. radio frequency,
  9. radio galaxy,
  10. radio horizon

Origin of radio direction finder

First recorded in 1920–25 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019