locator(redirected from electroacoustic locator)
Also found in: Dictionary, Thesaurus, Medical, Legal.
a device for determining the position of an object by means of sound or electromagnetic waves reflected from the object or radiation emanating from it. The main categories of locators are sonar, radar, and optical locators. Optical locators usually use lasers as radiation sources.
ii. A portable radio beacon, operating on 121.5/243/406 MHz, carried on the person or in a parachute harness. It may also have a voice facility. It is an aid to locating a downed pilot.