Navigation

Non-Directional Beacon(NDB)

Definition

A ground-based radio transmitter that broadcasts on low/medium frequencies used with the aircraft ADF receiver. NDB approaches are the most basic type of non-precision approach but are being phased out.

Related Terms

Non-Precision Approach

An instrument approach with lateral guidance but no electronic glidepath. VOR, N...

Test your knowledge

Think you understand Non-Directional Beacon? Challenge yourself with practice questions covering navigation and all other ATPL subjects.

Start a Practice Quiz

Or browse all questions by subject