Question

A message signal of frequency 10 kHz and peak voltage of 10 volts is used to module a carrier of frequency 1 MHz and peak voltage of 20 volts. The side bands are

Answer 1

Explanation:

Modulation index = fv = 1020 = 0.5 Side bands are , 1000 + 10 = 1010Hz and 1000 - 10 = 990Hz

Answer 2

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• a) Modulation index = ${10/20 = 0.5}$
• b) The side bands are at ${(1000+10 kHz)=1010 kHz}$ and ${(1000-10kHz)=990kHz}$.