When we talk about Amplitude Modulation (AM) and Frequency Modulation (FM) in amateur radio, we’re really talking about two classic ways of riding information on a radio wave — and each one has its own personality. In AM, the strength of the signal goes up and down following your voice, while the frequency stays put. That’s why AM feels so nostalgic to many hams: it’s simple, it’s elegant, and you can actually hear how your voice shapes the signal. It’s also very forgiving when it comes to tunin
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When we talk about Amplitude Modulation (AM) and Frequency M…
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This simulation demonstrates the working of an Amplitude Modulation (AM) circuit using operational amplifiers. In this setup, a high-frequency carrier signal of around 100 kHz is combined with a low-frequency modulating signal to produce an amplitude-modulated output. The circuit consists of two op-amps, resistors, and signal sources arranged to mix and control the amplitude variations effectively. The oscilloscope display shows the modulated waveform in green, while the red outline represents t
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This simulation demonstrates the working of an Amplitude Modulati…
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