Combining CHIRP sonar capabilities with StructureScan® HD and DownScan Imaging™, TotalScan™ increases fish-target separation for anglers and reduces interference. CHIRP Sonar minimizes display clutter, while StructureScan HD delivers photo-like images of fish-holding structure on both sides of boat. Similar photo-like images directly beneath boat are provided by DownScan Imaging. Product reduces number of transducers required to fully utilize Lowrance systems' fishfinding features.