a radar device at a fixed location that, on receiving a radar signal, automatically transmits a particular radar signal in reply, identifying itself and enabling navigators of ships and aircraft to determine their distance and direction from it.
a device for transmitting a coded radar signal in response to a signal from an aircraft or ship. The coded signal is then used by the navigator to determine his position Also called racon
noun 1. a small, handheld Doppler radar device used to measure the speed of vehicles or other moving objects. radar gun A usually hand-held device that measures the velocity of a moving object by sending out a continuous radio wave and measuring the frequency of reflected waves. See more at Doppler effect.
radarkymography ra·dar·ky·mog·ra·phy (rā’där-kī-mŏg’rə-fē) n. Video tracking of heart motion by means of image intensification and closed circuit television during fluoroscopy, enabling cardiac motion to be measured by reproducible linear graphic tracing.
[rey-dahr-muh n, -man] /ˈreɪ dɑr mən, -ˌmæn/ noun, plural radarmen [rey-dahr-muh n, -men] /ˈreɪ dɑr mən, -ˌmɛn/ (Show IPA) 1. a person who operates or helps to operate equipment.
noun, Military. 1. a ship, vehicle, or aircraft stationed at a distance from a protected force to increase radar detection range.