Re: Fish finder
Your basic entry level FF will show depth and "blips" aka arches or fish icons for fish. Most have options where you can change the view on how fish are displayed on the screen, either an "arch" or a fish icon and will show the bottom contour, smooth, stumps, drop offs, etc., Will also show how deep the fish are in relation to the bottom, such as fish icon/arch showing at 10' in 15 FOW, etc. This will give you the info you are looking for as to how deep/shallow are the fish suspending. The screen "scrolls" from right to left to show movement of the boat/vessel.