A small doubt regarding modulation Answered
I have a doubt regarding modulation process, more specifically regarding the spectrum.
I understand the spectrum of sinusoidal signals, the amplitude or energy is concentrated at a particular frequency, say Fm, and hence the delta functions. But why is the spectrum of the unmodulated message(original) signal always displayed only in the shape of triangle? I have been going nuts over this question.
I have attached the images just in case