A single sideband (SSB) transmission contains 500W. the transmission isto be replaced by a standard AM signal with the same power content.Determine the power content of each of the sidebands when themodulation depth is 70%
Question
A single sideband (SSB) transmission contains 500W. the transmission isto be replaced by a standard AM signal with the same power content.Determine the power content of each of the sidebands when themodulation depth is 70%
Solution
In an AM signal, the total power is divided between the carrier and the two sidebands. The power in the carrier is always two-thirds of the total power, and the power in each sideband is one-third of the total power.
Given that the total power is 500W, the power in the carrier is (2/3)*500W = 333.33W.
The power in each sideband is therefore (1/3)*500W = 166.67W.
However, when the modulation depth is 70%, the power in each sideband is reduced to 70% of its original value. Therefore, the power in each sideband is 0.7*166.67W = 116.67W.
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