I haven't messed with Kahn's CAM-D system, not havng an AM here. But, I bet it does what he says it does. He's in many was a genius. His stereo system for AM worked, and worked well. Unfortunately, marketing and public relations don't fall within his sphere of genius. He seems to have gained some patience with those of us of the Great Unwashed in the intervening years. I'll always listen to the technical side of what he has to say - so far he was correct every time.