Question

A bandwidth of $15MHz$ is available for transmission. If maximum signal frequency used for modulating the carrier is $15kHz$, then number of stations which can broadcast without any interference with each other in this band is

• A. $300$
• B. $400$
• C. $457$
• D. $500$

Answer 1

The correct option is D $500$

Bandwidth required for each station,
$2f_{AMtransmission}=2\times 15=30kHz$

Hence, number of stations which can broadcast without any interference with each other in this band is:
$\frac{15MHz}{30kHz}=500$