Operational notes on Non-Directional Beacons and associated Automatic Direction Finding

The operational notes on Non-Directional Beacons (NDB) and associated Automatic Direction Finding (ADF) are a reproduction of a booklet originally published by the Civil Aviation Authority.

Although these notes are no longer in print, they continue to provide a valuable resource and are made available as reference material for students, pilots and instructors.

The notes have not been edited and – as they were written more than 20 years ago – may contain information relating to systems that are no longer in production or have been modernised.