What does NDB stand for?

NDB stands for Non-Directional Beacon. This type of radio transmitter emits signals in all directions, providing a navigational aid to pilots. NDBs operate by sending out a continuous radio signal that can be picked up by aircraft equipped with appropriate receivers. Pilots can tune their onboard navigation systems to the frequency of the NDB, which allows them to determine their location relative to the beacon.

The functionality of NDBs is crucial for instrument navigation, particularly in poor visibility conditions. They serve as reference points for pilots when flying under instrument flight rules (IFR), helping them to navigate approaches and maintain situational awareness.

Understanding NDBs is important for flight instructors and students, as they are foundational aspects of aviation navigation systems. Familiarity with ADF (Automatic Direction Finder) technology that reads NDB signals is also vital for comprehensive pilot training.