Active Imaging™ sonar See structure and cover with a new level of refined detail and at a range unmatched by any other structure imaging technology with Active Imaging™ sonar. The high-level clarity, target separation and detail of Active Imaging makes it easier to quickly identify fish-holding structure like rock piles, standing timber, weed beds, ditches and drop-offs – all at a greater distance from your boat. StructureScan 3D StructureScan 3D imaging scans underwater terrain and fish-holding structure to create a high-resolution, three-dimensional view beneath the water. The view offered by StructureScan 3D is like a virtual underwater camera and show where features lie in relation to your vessel.