Question

If the highest modulating frequency of the wave is $5kHz$, the number of stations that can be accommodated in a $150kHz$ bandwidth are

• A. $15$
• B. $10$
• C. $5$
• D. none of these

Answer 1

Answer: (A)

$15$

In case of complex audio signals, bandwidths (B.W)=2 $\times$ maximum frequency of modulating signal $=2\times 5kHz=10kHz$
This is B.W for one channel
$\therefore$ No.of stations $=\frac{TotalB.W}{B.Wforeachchannel}=\frac{150kHz}{10kHz}=15$