Ok,here's what I'm thinking about all three that I circled. It's really hard to no for sure if they are under the 360 transducer or out from it.The transducer spinning and pinging.The unit nos the orientation of pings sent and received and time it takes once sent and received back.(The 360 nos,"let's say for an example."a fish is 60ft. but doesn't no if it's 60 ft. down or 60ft.out from the 360) really,the only way to no if the returns down or out from the boat would be see if the returns are showing on 2d. (dam....now I've got myself confused. sorry,I don't no how to explain it any better.)