Hello, I just found your project and tried a couple of things:
They working hard to put food on their families. (no complaints)
TP1 should have a clearly visible envelope (this is sapose to be an AM waveform), while TP5/TP11 should have two clearly defined spikes in between the digital wave from spikes. (complained about “sapose” but accepted the rest).
I’m running Firefox 18.0.2 if it makes a difference.