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Modulation d'amplitude :

What is amplitude modulation, and what is an example?
Amplitude Modulation is a simple method to transmit a signal, for example sound, from one end to another. A sound is a form of energy or vibrations. It travels in the air as waves. The nature of this wave is transverse. A wave has two important components: Amplitude and frequency. In Amplitude Modulation Amplitude of the carrier wave is changed ...
How is amplitude modulation achieved?
How is amplitude modulation achieved? Amplitude modulation is the process of varying the amplitude of the carrier signal in accordance with the amplitude of the message signal. Amplitude modulated signals can be produced by adding the carrier signal with the message signal and passing the resultant signal through a square law device (eg: FET).
What are limitations of amplitude modulation?
Disadvantages of Amplitude Modulation: An amplitude modulation signal is not efficient in terms of its power usage. Power wastage takes place in DSB-FC (Double Side Band – Full Carrier ) transmission. It is not efficient in terms of its use of bandwidth. It requires a bandwidth equal to twice that of the highest audio frequency.

What is amplitude modulation, and what is an example?