calibration radio beacon
calibration radio beacon
[′kal·ə‚brā·shən ′rād·ē·ō ‚bē·kən] (navigation)
A special radio beacon operated primarily for calibrating shipboard radio direction-finders; it transmits either continuously during scheduled hours or upon request.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.