4. Explain the formation of two sidebands in amplitude modulated wave.
Dear Student,
Solution:
In radio communications, a side band is a band of frequencies higher than or lower than the carrier frequency, containing power as a result of the modulation process. The side bands consist of all the Fourier components of the modulated signal except the carrier.
when the mixer mixes the RF frequency wave with the local oscillator of a radio receiver it yields or its out put is either the sum, difference, and second and third order harmonics occur during processing.
the difference is called the lower side band and the sum is called the upper side band. if twice the carrier frequency is added to the frequency of the local oscillator it is called the second harmonics and if the difference between three times the carrier frequency and frequency of the local oscillator is obtained it is called third harmonics.
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Solution:
In radio communications, a side band is a band of frequencies higher than or lower than the carrier frequency, containing power as a result of the modulation process. The side bands consist of all the Fourier components of the modulated signal except the carrier.
when the mixer mixes the RF frequency wave with the local oscillator of a radio receiver it yields or its out put is either the sum, difference, and second and third order harmonics occur during processing.
the difference is called the lower side band and the sum is called the upper side band. if twice the carrier frequency is added to the frequency of the local oscillator it is called the second harmonics and if the difference between three times the carrier frequency and frequency of the local oscillator is obtained it is called third harmonics.
Hope this information will clear your doubts about topic.
If you have any more doubts just ask here on the forum and our experts will try to help you out as soon as possible.
Regards