What type of signal does a VOR provide to assist pilots in navigation?

A VOR, or VHF Omnidirectional Range, provides directional guidance to pilots, which is crucial for navigation. It transmits a radio signal that enables aircraft to determine their position relative to the VOR station and the radial on which they are flying. The system emits signals in all directions, allowing pilots to receive bearing information to and from the station, which helps them navigate along specific flight paths.

While some options may seem relevant, such as distance information or vertical guidance, those are not functions of the VOR system itself. Distance information is typically provided by other types of equipment like DME (Distance Measuring Equipment), and vertical guidance, such as altitude information, is covered by different systems like ILS (Instrument Landing System). Therefore, the core functionality of the VOR is its ability to offer reliable and precise directional guidance, helping pilots maintain awareness of their flight path.