# If the highest frequency modulating a carrier is

Question:

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

Solution:

B. W. (Bandwidth $)=2 \times$ maximum frequency

at modulating signal

$=2 \times 5 \mathrm{kHz}$

$=10 \mathrm{kHz}$

$\therefore$ No of stations accommodate

$=\frac{90}{10}=9$