When interfaced with the highly accurate heading data from the SC-30/50/110 Satellite Compass, NavNet 3D Radar/Chart overlay, ARPA Target Tracking and Echo Trail functions can be greatly enhanced. Even when performing quick turning maneuvers or running into rough seas, NavNet 3D with the SC-30/50/110 presents clear and stable radar echo trails, constant ARPA tracking and spot-on Radar/Chart Plotter Overlay.