Modulation takes place in
Transmitter
Transmitter channel
Receiver
none
As we have learned
Modulation -
It is the process carried out at transmitter in which the low frequency message signal is superimposed on a high frequency carrier signal.
- wherein
The objective of modulation is to make transmission feasible and noise free . If modulation with a carrier wave of high frequency is not done , transmission would not be possible to long distant location .It is obvious that modulation shall occur before the transmission ,Thus transmission channel and receiver can not be the answer .
NOw we know that transmitter is a device which enables the modulation of message signal with high frequency carrier wave
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