VOR

From HFUnderground

VHF Omnidirectional Radio Range or "Omni Range"

Very High Frequency Omnidirectional Radio Range - VHF aircraft band radio navigation system. Widely used, generally replaced (or at least supplanted non-directional beacons (NDBs). Now VOR is being generally replaced (or largely supplanted by) GPS.

Fixed service, 108 MHz to 117.95 MHz, worldwide. The 108-118 portion is often referred to as the "nav" band (see also: ILS, DME).