Math, asked by bdas02883, 19 days ago

why modulation necessary ​

Answers

Answered by harshiranderia60
1

Step-by-step explanation:

The signals within 20 Hz to 20 kHz frequency range can travel only a few distances. To send the message signal, the length of the antenna should be a quarter wavelength of the used frequency. Thus, modulation is required to increase the frequency of the message signal and to enhance its strength to reach the receiver.

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