Satellite Overlay, updated and optimized for the coming boating season, offers a top-down view of inland and coastal areas.
SonarChart Shading, created from the high-definition contour data within SonarChart, presents a detailed rendering of the seafloor and lake bottoms in varying shades of blue. As coverage areas are released, customers who own a Platinum+ or HotMaps Platinum chart with an active subscription will be able to download the combined satellite overlay and SonarChart™ Shading layer for their region via the Chart Installer. SonarChart Shading Availability
Crisp satellite photography can be displayed on land only, land and shallow water or full overlay, visible on water at closer zoom levels.
A detailed rendering of the seafloor and lake bottom delivers a unique perspective of underwater topography at a glance.
Clearly see channels, drop-offs and other structures over a wide area for a better understanding of the seafloor and lake bottom.
Search the map for visual cues to identify fish-holding structure on inland lakes and coastal fisheries.
Clearly see channels, drop-offs and other structures over a wide area for a better understanding of the seafloor and lake bottom.
Search the map for visual cues to identify fish-holding structure on inland lakes and coastal fisheries.
Satellite Overlay and SonarChart Shading are included with Platinum cards and can be viewed with compatible models from many brands. Check compatibility.
Already own a Platinum card?
With an active subscription, the combined layer can be downloaded through the Chart Installer.
SonarChart Shading is available for download on HotMaps Platinum and on Platinum+ charts in the U.S, Canada, Europe, Central America, Africa, Middle East and Oceania.
Customize your chart to highlight key features for a better awareness of your surroundings