superheterodyne receivers

The Importance of a Local Oscillator in Amplitude Modulation (AM)

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Introduction to Amplitude Modulation and Local Oscillators Amplitude Modulation (AM) represents one of the foundational techniques in the field of communication, whereby the amplitude of a carrier wave is modified in accordance with the information signal. This technique, established in the early 20th century, remains pivotal due to its simplicity and effectiveness in transmitting both …

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What Does a Local Oscillator Do? Introduction to Local Oscillators A local oscillator (LO) is a crucial electronic device widely utilized across a variety of radio frequency applications, including AM and FM radio receivers, television sets, and other forms of communication equipment. At its core, a local oscillator generates a signal of specific frequency, which …

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