gap-filler radar[′gap ‚fil·ər ′rā‚där]
Radar used to fill gaps in radar coverage of other radar.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Radar used to supplement the coverage of the principal radar(s) in areas with breaks in the coverage.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved