Discussion
Peak envelope power is the quantity specified for an SSB transmitter because
Answer: D
The output devices must handle the peaks without distortion, so peak envelope power is what determines linearity and the power rating, while the average power of speech is only a fraction of it. Average power is if anything easier to measure with a simple wattmeter. Regulators specify both in various contexts. And the average power of speech is small but certainly not zero, which is why a licence limit in peak envelope power is not the same as one in average power.
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