A message signal of frequency 10kHz and peak voltage 10 V is used to modulate a carrier of frequency 1 MHz and peak voltage of 20V.Determine

a) Modulation Index

b) the side bands produced

For Message signal'
Frequency, fm = 10 kHz
Peak voltage, Am = 10 V

For carrier frequency
Frequency, fc = 1 MHz = 1000 kHz
Peak voltage, Ac = 20 V

(a) Modulation frequency is given by
(b) The side bands will be at (fc±fm)=(1000±10) kHz=1010 kHz and 990 kHz

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