Power

Power of a modulated signal

Power of a modulated signal
  1. How do you calculate the power of a modulated signal?
  2. What is the power content of the modulated signal?
  3. What is modulating power?
  4. What is the maximum power of an amplitude modulated signal?

How do you calculate the power of a modulated signal?

Hint The modulation index for the total power of the modulated signal and carrier signal is related to total power and carrier power is given by PT=PC(1+ma22) .

What is the power content of the modulated signal?

If the modulation index μ=1 then the power of AM wave is equal to 1.5 times the carrier power. So, the power required for transmitting an AM wave is 1.5 times the carrier power for a perfect modulation.

What is modulating power?

Modulation is the use of one electrical signal to “control” a primary variable of another. For example, if an audio signal voltage is used to control the “amplitude” of a carrier signal, the result is amplitude modulation.

What is the maximum power of an amplitude modulated signal?

For an amplitude modulated wave, the maximum amplitude is found to be 10 V while the minimum amplitude is found to be 2 V.

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