A critical area of performance for aircraft detection systems, defined by the distance at which the radar beam rises enough above the Earth's surface to make detection of a target at low level impossible.

plural of radar chart

plural of radar trap

plural of radar gun

A two-dimensional chart of multivariate data, with three or more quantitative variables represented on axes starting from the same point.

(meteorology) A type of radar used to locate precipitation, calculate its motion, and estimate its type.

(chiefly meteorology) A radar system using the Doppler effect to measure the radial velocity of detected objects, allowing moving objects (such as airplanes, precipitation, missiles, etc.) to be distinguished from stationary ones and classified by magnitude and direction of their velocity towards or away from the radar site.

Being under consideration by someone.