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Mention the three important reasons whic...

Mention the three important reasons which necessitate the process of modulation in communication.

Text Solution

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Need for modulation is
1. To reduce the size of the `"antenna"//"aerial"`.
2. To reduce the effective power radiated by antenna.
3. To avoid mixing up of signals from different transmitters.
4. To propagate low frequency signals cannot be propagated to long distances.
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