height-range indicator


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height-range indicator

[′hīt ¦rānj ′in·də‚kād·ər]
(electronics)
Radar display which shows an echo as a bright spot on a rectangular field, slant range being indicated along the X axis, height above the horizontal plane being indicated (on a magnified scale) along the Y axis, and height above the earth being shown by a cursor.
Cathode-ray tube from which altitude and range measurements of flightborne objects may be viewed.