Also found in: Acronyms.
height-range indicator[′hīt ¦rānj ′in·də‚kād·ər]
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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.