My dad got this unit for his bass boat and is not the most technically savvy man alive, so I need some help because I guess I am not either. Does anyone have any tips as to how we can set this unit up, or how to read what I am seeing? I have it set for the side imaging but it is hard for us to read. We fish depths that are form 50 to 1 foot of relatively clear water. Any help would be great! Thanks in advance