In a VOR/DME navigation system, which function does the VOR primarily provide?

In a VOR/DME navigation system, which function does the VOR primarily provide?

• A. Distance measurement
• B. Altitude information
• C. Vertical speed
• D. Directional bearing

Answer: (D)

Directional bearing is what the VOR provides. A VOR transmits signals that let the aircraft’s receiver determine the azimuth—the radial—from the station to your position, effectively telling you which way you are relative to the VOR (measured from magnetic north). This bearing is what you use to fly a specific course by tracking a chosen radial. The distance to the station is supplied by the DME, not the VOR, while altitude and vertical speed come from other aircraft systems. So in a VOR/DME setup, the VOR’s primary role is to give you the directional bearing.

Directional bearing is what the VOR provides. A VOR transmits signals that let the aircraft’s receiver determine the azimuth—the radial—from the station to your position, effectively telling you which way you are relative to the VOR (measured from magnetic north). This bearing is what you use to fly a specific course by tracking a chosen radial. The distance to the station is supplied by the DME, not the VOR, while altitude and vertical speed come from other aircraft systems. So in a VOR/DME setup, the VOR’s primary role is to give you the directional bearing.