Plain English Meaning

One radio in the cockpit that can do two navigation jobs: tell you where you are relative to a VOR station along your route, and guide you left or right onto the runway centerline during an instrument landing approach.

Full Definition

A combined airborne navigation receiver that processes signals from VHF Omnidirectional Range (VOR) ground stations and from Localizer transmitters, which are the lateral guidance component of an Instrument Landing System (ILS). Both signal types are in the very () between 108.0 and 117.95 , allowing a single receiver to handle VOR navigation and localizer guidance.