on the beam
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Related to on the beam: Android Beam
on the beam[′ȯnthə ′bēm]
Centered on a beam of, or on an equisignal zone of, radiant energy, as a radio range.
Bearing approximately 090° relative (on the starboard beam) or 270° relative (on the port beam); the expression is often used loosely for broad on the beam, or bearing exactly 090° or 270° relative. Also known as abeam.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.