997 on console 787c2i up front. Interlinked. Had factory uploaded version software loaded. My 787 up front has very weak returns. The depth jumps tp 600+ feet and back down. Blue line at about 2 ft solid across and bottom is broken light blue. GPS works fine voltage is fine but not showing any fish or strucutre at all. Sometimes bottom will disappear and then it will start from 1 ft and progress down to correct depth. Is this my transducer? Its been happening since i bought it a year ago.

