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प्रश्न
Answer briefly.
What is the modulation?
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उत्तर
The signals in the communication system (e.g. music, speech, etc.) are low-frequency signals and cannot be transmitted over large distances. In order to transmit the signal to large distances, it is superimposed on a high-frequency wave (called carrier wave). This process is called modulation.
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संबंधित प्रश्न
Answer briefly.
What is meant by amplitude modulation?
Answer briefly.
What is demodulation?
Answer briefly.
What type of modulation is required for television broadcast?
Answer briefly.
Why does amplitude modulation give noisy reception?
Answer briefly.
Explain why is modulation needed.
To obtain sustained oscillation in an oscillator,
The variation of frequency of carrier wave with respect to the amplitude of the modulating signal is called ____________.
What is modulation?
Explain centre frequency or resting frequency in frequency modulation.
Explain the amplitude modulation with necessary diagrams.
List out the advantages and limitations of frequency modulation.
