PlZ tELl ME hoW ModuLatIoN iS doNe?? aLso some EXaMPLes OF moDUlATOrs 28 February
Modulation is done by changing the characteristics (Amplitude,Frequency or Phase) of the CARRIER signal with respect to the MODULATING signal.
MODEM can be a good example as it is a short form of modulator-demodulator.It converts a computer’s digital signals into specific frequencies to travel over telephone lines. At the destination, the receiving modem demodulates the frequencies back into digital data.
If you want to visualize various modulation techniques you can do it easily in MATLAB.
For further details about modulation check the following links:
(i)https://www.complextoreal.com/chapters/mod1.pdfl
(ii) https://en.wikipedia.org/wiki/Modulation
(iii) https://www.youtube.com/watch?v=PNMuf8twHqw