chart comparison unit
chart comparison unit[′chart kəm′par·ə·sən ‚yü·nət]
A device that permits simultaneous viewing of a radar plan position indicator display and a navigation chart so that one appears superimposed on the other. Also known as autoradar plot.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.