AutoChart DVD PC Mapping Software with Zero Lines Map CardAutoChart: Map coverage where you make it.Humminbird AutoChart for North America uses proprietary software that takes your Humminbird's sonar recordings and GPS to build custom lake charts. Create your own contour map on any lake in 3 simple steps: 1.Record sonar data after inserting a blank SD card into your Humminbird Combo. 2.Import your recordings into the AutoChart PC program and convert your survey into a lake map. 3.Export your map onto the Zero Lines Map Card (included) to display on any compatible* Humminbird.*AutoChart is optional for select ONIX, ION, 1100, 900, 800, and 600 Series models. Compatibility subject to change without notice.Zero Lines Map Card: The starting point to your mapping adventure. The Zero Line is the place where the water meets the shore and the starting point for building your own maps. Included with the AutoChart PC software is a 32 GB map card loaded with Zero Lines for millions of water bodies in North America. With these all-important Zero Lines as your foundation, you can begin creating your own, accurate and detailed maps of any fishing spot, even where contour coverage doesn't exist. Once your AutoChart map is created, the only way to view the contours on a compatible Humminbird fish finder is by loading them onto a Zero Lines Map Card. Now use i-Pilot Link on any lake when you create contours with Humminbird AutoChart. Get on the fast track to finding fish more effectively. Humminbird AutoChart enables you to use Minn Kotar i-Pilotr LinkT on previously unmapped bodies of water after you create contours with the revolutionary AutoChart PC Software. The i-Pilot Link's innovative Follow the Contour feature will direct the trolling motor to follow a specific depth contour. The chosen contour line can be automatically followed in either direction, or stay a set distance from that contour or shoreline with Contour Offset.More Features:Additionally, with AutoChart's generated contours, you'll have access to all the detail and features of Humminbird LakeMaster charts including: Depth Highlight (Depth Highlight Range) Water Level Offset Shallow Water Highlight Mark, Import, and Export waypoints i-Pilot Link functionality Minimum PC Requirements: 512 MB Ram* 10 GB Free hard drive Windows XP (sp3 or greater) DVD-ROM Drive*(1024 MB RAM Recommended)WARNING: This product can expose you to chemicals including Naphthalene which is known to the State of California to cause cancer. For more information go to P65Warnings.ca.gov.