RF Envelope Detector Wide Frequency Detection Module Board 0.1M-3.3GHz SMA
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$3.69
Average
$3.93
Min Price
$3.61
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$4.39
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Product review & video
[Music] in this video we're going to look at what amplitude modulation is and discover how a diode detector works and extracts the audio from an amplitude modulated signal within the circuits of many domestic broadcast radios there's a simple diode detector although better circuits are often used now the diode detector found favor because it was cheap and very effective before looking at the diode detector itself let's first take a look at what amplitude modulation or AM actually is and how it carries information like audio the basis of any AM signal is called the carrier this is the radio frequency signal without any modulation applied whatsoever next we need to obtain the audio signal this is used to control the amplitude of the overall signal this can be done using some form of mixer in the transmitter it can be seen that the result is that the level of the radio frequency carrier is
