What does 'NDB' stand for in aviation navigation?

In aviation navigation, 'NDB' stands for Non-Directional Beacon. This is a type of radio transmitter that broadcasts signals in all directions, allowing aircraft equipped with appropriate receivers to determine their bearing relative to the beacon. The signals from an NDB provide a reliable method for pilots to navigate, particularly when visual references are not available, such as during adverse weather conditions or at night.

Non-Directional Beacons are primarily used as aids for navigation, providing pilots with a means to find their location and navigate along specific flight paths. They play a critical role in the conventional air traffic system and are often used in conjunction with Automatic Direction Finding (ADF) equipment in aircraft. Understanding the concept of NDB is crucial for avionics technicians, as it influences both the maintenance and operation of navigational systems in aircraft.