Question

write down the importance of modulation

Answer 1

If we can't send low-frequency signals, then we need to shift our signal up the frequency ladder. Modulation allows us to send a signal over a bandpass frequency range. ... Another reason to modulate a signal is to allow the use of a smaller antenna.

Answer 2

the purpose of communication system is to transmit information or message signal.the message signals which designated the band of frequency represent the original signal