Radio frequency topic

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Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits. Electrical currents that oscillate at RF have special properties not shared by direct current signals. One such property... full article at wikipedia

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Library of Congress Classification	QC	676.0	678.6
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The original description for this topic was automatically generated from the Wikipedia article "Radio frequency" licensed under the GNU Free Documentation License .