| 单词 | FREQUENCY MODULATION |
| 释义 | Boosting electrical signals broadcasted. Such signals cannot travel full distance themselves. A carrier wave piggybacks the broadcast signal, which collectively boosts their strength. These signals are less susceptible to electromagnetic interference than amplitude modulation (AM) transmissions. FM signals originate in the 88 to 108 megahertz frequency band. Contrast to amplitude modulation (AM). |
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