What does QDR represent in navigation?

QDR stands for "Quick Direction Radio" and is used in navigation to indicate the magnetic bearing from the station. This term is specifically used in aviation and maritime contexts. When a navigator refers to a QDR, they are communicating the direction that they are currently positioned relative to the station, using magnetic north as the reference point.

The importance of this is that it helps pilots and mariners easily identify their course relative to navigational aids, allowing for better routing and situational awareness while en route. In practice, a QDR reading helps in determining how to navigate towards or away from a facility, incorporating factors like wind and currents which may affect travel direction.