That makes perfect sense. I seen some lines at cruising speed and that stands to reason, since the return enters and exits the cone edge (longest distance from transducer) to form a vertical line. I believe my simrad evo3s is set to pallet 4, which has yellow or red as the strongest return signals. Very helpful information and I appreciate the reply.

Quote Originally Posted by rickerd View Post
Yes when you are cruising above 15 mph, the fish appear as a line up and down or a spec. I have mine set to show yellow as strongest returns. So when I see yellow lines on screen, I might slow down to 10mph or less to check them out. The faster you go, the more water you are marking, so even at 5mph instead of drifting at 1 or trolling at 2, the fish might seem to be more, but when you slow down they dissapear or break up.
Rickerd