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ASidd
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I read on a website that in amplitude modulation the actual carrier wave does not change its amplitude but rather the sidebands.
Is this true
Is this true
Last edited:
Well, if you read it on a website, then it must be true.ASidd said:I read on a website that in amplitude modulation the actual carrier wave does not change its amplitude but rather the sidebands.
Is this true
Amplitude modulation works by varying the amplitude of a carrier wave to encode information. The quality of the signal is affected by the amplitude variations, as they can introduce distortion and noise. However, if the amplitude is kept within a certain range, the signal quality can be maintained.
The carrier wave in amplitude modulation serves as a medium to carry the encoded information. It is a high frequency wave that is modulated by a lower frequency signal, which contains the actual information.
The information in an amplitude modulated signal can be demodulated by using a detector circuit that separates the modulating signal from the carrier wave. This can be achieved by using a diode or a series of filters.
Amplitude modulation has the advantage of being a simple and cost-effective method of modulating signals. It also allows for the transmission of multiple signals simultaneously on different carrier frequencies, known as multiplexing.
The bandwidth of an amplitude modulated signal is wider than the bandwidth of the original signal. This is because the carrier wave is also transmitted, which increases the overall bandwidth. However, the bandwidth of the modulated signal is still significantly less than the sum of the bandwidths of all the signals being transmitted.