FREQUENCY MODULATION (FM)
\fɹˈiːkwənsi mˌɒdjʊlˈe͡ɪʃən ˌɛfˈɛm], \fɹˈiːkwənsi mˌɒdjʊlˈeɪʃən ˌɛfˈɛm], \f_ɹ_ˈiː_k_w_ə_n_s_i m_ˌɒ_d_j_ʊ_l_ˈeɪ_ʃ_ə_n__ ˌɛ_f_ˈɛ_m]\
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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).
By Henry Campbell Black
Word of the day
Dopamine Acetyltransferase
- An enzyme that catalyzes the of groups from acetyl-CoA to arylamines. They have wide specificity for aromatic amines, particularly serotonin, and can also catalyze acetyl transfer between arylamines without CoA. EC 2.3.1.5.