What does DME stand for?

DME stands for Distance Measuring Equipment, which is a crucial system used in aviation to determine the distance between an aircraft and a ground-based DME station. Operating through the transmission of signals, DME allows pilots and air traffic controllers to ascertain the aircraft's position relative to the station, thus aiding in navigation and improving overall situational awareness during flight.

The other options do not accurately describe the system used in aviation. Dynamic Measurement Equipment, Digital Measurement Equipment, and Distance Monitoring Equipment are not recognized terms within the field and do not correspond to the established terminology associated with navigational aids. The precise definition of DME as Distance Measuring Equipment highlights its specific function in facilitating distance navigation and is widely used and understood within aviation circles.