Ah ok! So far, I was trying to unsuccessfully fit my mental model of normal amplitude modulation to what this code is doing. Your two statements "This radio ha

Ah ok! So far, I was trying to unsuccessfully fit my mental model of normal amplitude modulation to what this code is doing. Your two statements "This radio has no control over the exact amplitude. On state will be at some random amplitude that we can't control" were exactly the missing gaps I needed to clear my confusion. Very well explained, thank you very much!