as signals come in a means of extracting the original signal is required from the carrier frequency that process is called demodulation or modulation detection you called
FM means Frequency Modulated.FM stands for modulation on frequency or frequency modulation.
The difference between frequency modulation and phase modulation is that with frequency modulation the angular frequency of the signal is modified while with the phase modulation, the phase angle of the signal is modified.
AM - Amplitude Modulation FM - Frequency Modulation
Modulation Index is the ratio of the maximum deviation frequency to the frequency of modulation. In other words it is the ratio of the spread in frequency spectrum to the frequency that was used to modulate the carrier. For FM, modulation index is given by the formula mf= df/f where, mf=modulation index for FM df=difference in carrier frequency f=frequency of the signal
FM means frequency modulation AM means amplitude modulation
fc>2fm
frequency modulation..
a measure of the degree of frequency modulation expressed numerically for a pure tone modulation as the ratio of the frequency deviation to the frequency of the modulating signal.
Modulation schemes depends on frequency.
Frequency Modulation _____________________________________________________________________ fayetville-manlius
Normal frequency range for amplitude modulation is 550kHz to 1610kHz
demodulation or detection.