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  • Give answer! The modulation frequency of an AM radio station is 250 kHz, which is 10% of the carrier wave. If another AM station approaches you for license what broadcast frequency will you allot ?

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

  • Option 1)

    2250 kHz

  • Option 2)

    2750 kHz

  • Option 3)

    2900 kHz

  • Option 4)

    2000 kHz

Answers (1)

best_answer

 

Side band frequency -

AM wave contains three frequency f_{c},\left ( f_{c}+f_{m} \right )\: and \: \left ( f_{c}-f_{m} \right )

 

- wherein

f_{c} is carrier frequency, f_{c} -f_{m} \:and\: f_{c}+f_{m} are side band frequency.

f_{c} = \frac{250}{0.1} = 2500kHz

Range of signal 2250KHz to 2750KHz from option for 2000KHz , from = 200 Hz

range = 1800KHz to 2200KHz

 


Option 1)

2250 kHz

Option 2)

2750 kHz

Option 3)

2900 kHz

Option 4)

2000 kHz

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