I am operating an 898c SI. This is within a river system with settings of Range - 90ft, 800kHz, sensitivity - 5, contrast - 10. It seems that it is getting pretty good images to the left while the right side isn't. Travel of boat is mostly center of river trying to keep equal distances to shorelines.
I am looking into what may be causing this and best way to get quality images of the entire river channel. On average the river depth is 7-8ft with some areas of 13-14ft and then 3-4ft within the main channel. Thanks for any help.