reference noise

reference noise

[′ref·rəns ‚nȯiz]
(electronics)
The power level used as a basis of comparison when designating noise power expressed in decibels above reference noise (dBrn); the reference usually used is 10-12 watt (-90 decibels above 1 milliwatt; dBm) at 1000 hertz.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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