1. Tardigrade
  2. Question
  3. Physics
  4. The modulation frequency of an AM radio station is 250kHz, which is 10 % of the carrier wave. If another AMstation approaches you for license what broadcast frequency 1800 kHz to kHz will you allot?

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The modulation frequency of an $AM$ radio station is $250kHz$, which is $10\%$ of the carrier wave. If another $AM$station approaches you for license what broadcast frequency $1800 kHz$ to ________ $kHz$ will you allot?

Communication Systems

Solution:

According to question, modulation frequency, $250 Hz$ is $10\%$ of carrier wave
$f_{\text{carrier}} = \frac{250}{0.1} = 2500 kHZ$
$\therefore $ Range of signal $2500 \pm250 KHz =2250 Hz$ to $2750Hz$
For $2000 kHZ$
$f_{\text{mod}} =200Hz$
$\therefore $ Range $= 1800kHZ$ to $2200KHZ$