hum modulation


Also found in: Acronyms.

hum modulation

[′həm ‚mäj·ə‚lā·shən]
(electronics)
Modulation of a radio-frequency signal or detected audio-frequency signal by hum; heard in a radio receiver only when a station is tuned in.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.