I would like to know how instant on works. I know the basics. From what I have found on this site, when people talks about instant on, they are talking about the manual instant on. In my personal experience there seems to be an auto instant on mode. I have experienced this behavior several times. When the LEO stops the radar stops then when he resumes the radar resumes for a brief moment and stops, several seconds after the radar starts again. But when the LEO reaches a cruising speed the radar stays in what seems a constant mode. Does any body have information about this? I would like to get the manuals or training material about instant on radar. Thank you very much.