engineering recuitment ISRO Scientist Electronics Mock Test Communication Systems Angle Modulation Frequency Modulation
Consider an FM signal f(t) = cos [2πfct + β1 sin 2πf1t + β2 sin 2πf2t]. The maximum deviation of the instantaneous frequency from the carrier frequency fc is
1
β1f1 + β2f2
2
β1f2 + β2f1
3
β1 + β2
4
f1 + f2