What is the role of the carrier in a modulated signalSolutio

What is the role of the carrier in a modulated signal?

Solution

Ans) This carrier wave is usually a much higher frequency than the input signal. The purpose of the carrier is to transmit the information through space as an electromagnetic wave for example radio communication,

or it can also be use to to allow several carriers at different frequencies to share a common physical transmission medium by frequency division multiplexing

The main reason for using high frequency carrier waves for sending information through EM waves is because it allows smaller antenna design other wise for sending audio signal you need larger antennas