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Communication Systems - Engineering

Q1:

A 1000 kHz carrier is simultaneously modulated by 300 Hz and 2 kHz audio sine wave. Which of the following frequencies will not be present in the output?

A 998 kHz

B 999.7 kHz

C 1000.3 kHz

D 700 kHz

ANS:D - 700 kHz

1000 ± 0.3 and 1000 ± 2 kHz will be present.