Download Aptitude Crack
img not found img not found

Communication Systems - Engineering

Q1:

24 telephone channels are frequency division multiplexed using an SSB modulation. Assuming 3 kHz per channel, the required band width is

A 8 kHz

B 27 kHz

C 21 kHz

D 72 kHz

ANS:D - 72 kHz

Since SSB modulation is used, bandwidth = 24 x 3 = 72 kHz.