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Physics AQA
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Amplitude (AM) and frequency modulation (FM) techniques (A-level only)
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Why modulate a low-frequency audio/data signal onto a high-frequency carrier?
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Direct low-frequency transmission needs
kilometre-long antennas
.
High-frequency carriers use
reasonably sized antennas
.
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Amplitude (AM) and frequency modulation (FM) techniques (A-level only) Flashcards
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Amplitude (AM) and frequency modulation (FM) techniques (A-level only)
