Distance Measuring Equipment is a radio navaid used to determine what?

Distance Measuring Equipment is a radio navaid used to determine what?

• A. Distance from the station
• B. Elevation of the station
• C. Bearing to the station
• D. Time to station

Answer: (A)

Distance Measuring Equipment provides distance information between the aircraft and a ground station. It works by the aircraft querying a DME transponder at the station and receiving a reply, then converting the round‑trip time into a distance readout, usually in nautical miles. This reading represents the slant range from the aircraft to the station, not its altitude or a directional bearing. So the best answer is that it determines distance from the station. DME is often paired with VOR (as VOR/DME) to give both bearing and distance for position fixes, but the distance itself comes from the DME alone. It does not provide elevation, bearing, or time to the station.

Distance Measuring Equipment provides distance information between the aircraft and a ground station. It works by the aircraft querying a DME transponder at the station and receiving a reply, then converting the round‑trip time into a distance readout, usually in nautical miles. This reading represents the slant range from the aircraft to the station, not its altitude or a directional bearing. So the best answer is that it determines distance from the station. DME is often paired with VOR (as VOR/DME) to give both bearing and distance for position fixes, but the distance itself comes from the DME alone. It does not provide elevation, bearing, or time to the station.