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Frequency modulation - Wikipedia, the free encyclopedia (928 words) |
 | Frequency modulation (FM) is a form of modulation which represents information as variations in the instantaneous frequency of a carrier wave. |
| Problematically, however, frequency drift or lack of selectivity may cause one station or signal to be suddenly overtaken by another on an adjacent channel. |
| Note that frequency modulation can be regarded as a special case of phase modulation where the carrier phase modulation is the time integral of the FM modulating signal. |
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