Well, the AIS 650 is in and working. They (techs) set it up for a tenth of a mile but that looks awful busy to me! Unless I click on "Dangerous only" there are too many boats shown on my screen. Another thing I've noticed is that when I simply touch the screen, anywhere, boat or no boat, it gives me a quick read out as to distance and heading to that point. That can really come in handy when one wants a quick reference to a shore location, etc.
Please excuse the stupid questions but I haven't had this thing for 24 hours yet!
P.S. I have new carpeting for the fly bridge & salon and wallpaper in both heads on order and I'm just about out of boat bucks!