Question

what is need of modulation? explain it's advantage ​

Answer 1

Explanation:

Advantages of Modulation

The antenna used for transmission, had to be very large, if modulation was not introduced. The range of communication gets limited as the wave cannot travel to a distance without getting distorted. ... Antenna size gets reduced. No signal mixing occurs. Communication range increases.

Answer 2

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Modulation allows us to send a signal over a bandpass frequency range. If every signal gets its own frequency range, then we can transmit multiple signals simultaneously over a single channel, all using different frequency ranges. Another reason to modulate a signal is to allow the use of a smaller antenna.

Advantages of Modulation

• The antenna used for transmission, had to be very large, if modulation was not introduced.
• Antenna size gets reduced. No signal mixing occurs.
• Communication range increases. Multiplexing of signals occur.