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(communications) Interference due to a nearby transmitter whose signals are so strong that they override other signals over a wide band of frequencies.
(mining engineering) The material caught on the blankets that are used in concentrating gold-bearing sands or slimes.
Blanketing is interference caused by strong radio signals. Although the spectral mask of a radio station's transmitter suppresses spurious emissions on other frequencies in the band, being extremely close to a station may allow them to still be strong enough to cause significant interference. The strong station will appear on nearly every blank or weak channel in the band, especially in the FM broadcast band. This problem is greatly reduced by even moderate-quality receivers, which have better selectivity than inexpensive disposable ones.
Occasionally, stations that cause blanketing interference near their antenna will also pop up in more bizarre items, such as computer loudspeakers, which are not even meant to pick up radio stations. This is also the result of poor (or nonexistent) electromagnetic shielding in such cheap electronics.
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Blanketing". Read more |
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