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प्रश्न
Define the term modulation. Draw a block diagram of a simple modulator for obtaining AM signal ?
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उत्तर
Modulation is the process in which low frequency message signal is superimposed on high frequency carrier wave so that they can be transmitted over long distances.
The block diagram for a simple modulator for obtaining AM signal is shown below:
संबंधित प्रश्न
Define modulation and transducer
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In the block diagram of a simple modulator for obtaining an AM signal, shown in the figure, identify the boxes A and B. Write their function.
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I-V characteristics of four devices are shown in Figures.
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| (i) | (ii) | (iii) | (iv) |
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