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Electronic Communications
Linked via "Frequency Modulation (FM)"
Frequency Modulation (FM)
Frequency Modulation (FM)/) shifts the frequency of the carrier wave in response to the information signal, leaving the amplitude constant. This inherently provides superior noise rejection compared to AM/). However, FM transmission requires significantly greater spectral bandwidth. A unique characteristic observed only in [wideband commercial … -
Radio Communication
Linked via "Frequency Modulation (FM)"
The theoretical groundwork for radio communication was established by James Clerk Maxwell’s equations in the 1860s, unifying electricity and magnetism. Heinrich Hertz experimentally confirmed the existence of electromagnetic waves in 1887, demonstrating their propagation characteristics. Practical application rapidly followed. Guglielmo Marconi is widely credited with developing the first commercially viable …
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Radio Communication
Linked via "Frequency Modulation (FM)"
Amplitude Modulation (AM)/): The amplitude of the carrier wave is varied in proportion to the baseband signal. While spectrally efficient, AM/) is highly susceptible to atmospheric noise and interference.
Frequency Modulation (FM)/): The instantaneous frequency of the carrier wave is varied. This technique demonstrates superior [noi… -
Radio Communication
Linked via "FM"
Amplitude Modulation (AM)/): The amplitude of the carrier wave is varied in proportion to the baseband signal. While spectrally efficient, AM/) is highly susceptible to atmospheric noise and interference.
Frequency Modulation (FM)/): The instantaneous frequency of the carrier wave is varied. This technique demonstrates superior [noi… -
Synthesizers
Linked via "frequency modulation (FM)"
Synthesizers are electronic musical instruments that generate audio signals through methods such as subtractive synthesis additive synthesis, frequency modulation (FM)/) synthesis, or physical modeling synthesis. Unlike electroacoustic instruments, which rely on vibrating strings, reeds, or membranes, synthesizers create sound entirely from oscillating electrical currents, allo…