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Effective radiated power (ERP) is equal to ________

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Effective radiated power (ERP) is equal to ________

(a) Pt×Gt×Pd

(b) Pt×Pd

(c) Gt×Pd

(d) Pt×Gt

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I would like to ask this question from Envelope Detector in section Amplitude Modulation of Analog Communications

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The correct choice is (d) Pt×Gt

The explanation: Effective Radiated Power (ERP) measures the combination of the power emitted by the transmitter and the ability of the antenna to direct that power in a given direction. Thus, Effective Radiated Power is equal to the product of antenna gain (Gt) and power transmitted (Pt).

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