Question

If the highest frequency modulating a carrier is $5\text{kHz}$, then the number of $AM$ broadcast stations accommodated in a $90\text{kHz}$ bandwidth are ______.

Answer 1

Number of station, $n=\frac{\text{Bandwidth}}{2\times \text{Highest Modulating Frequency}}$

$\Rightarrow n=\frac{90}{2\times 5}$ $=$ $9$