Vocabulary

1. Direction Finding	─ A navigational aid.
2. Fix	─ Position of an aircraft as determined by various means of navigation.
3. Device	─ An instrument or equipment designed for a particular purpose.
4. ADF	─ Automatic Direction Finding. Anavigational aid in the aircraft.
5. Airborne	─ An aircraft in flight is airborne. In this particular case, however, it means equipment installed in the aircraft, known as airborne equipment.
6. Counterpart	─ Equivalent.
7. Compass locators	─ Low powered radio beacons frequently installed at the same locations as outer and middle markers.
8. NDB	─ Non-directional radio beacon.
9. Backup	─ Support or help.
10. High density area	─ An area with a lot of traffic.
11. Decca	─ A navigational aid.
12. LORAN	─ A navigational aid, known as Long Range Navigation.

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