Discussion
What is the order of the audio chain in a broadcast AM transmitter?
Answer: B
The chain runs level control, band limiting, peak limiting, then the modulator: set the working level, remove content the channel cannot carry, hold the peaks below full modulation, and only then modulate. Peak limiting must come after band limiting, because filtering can create new peaks. And nothing can follow the modulator, which is the end of the audio path. Ordering a signal chain by what each stage assumes about its input is the general method here.
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