- Each folder listed below, with exception of the LkMaster, is created when the associated data is first saved to the card. Only the LkMaster folder and contents are present on the card when it is newly purchased or created through ChartSelect.
- The folders listed below except for the LkMaster can be removed or deleted if necessary without damaging the card.
- Renaming the folders or changing their location on the card can cause the data to no longer function correctly.
Folders and Files
This folder and its content provide the basemap for your region map. The folder and its content MUST NOT be edited, added to, nor deleted. Doing so will render the card unusable for its intended purpose.
When you click the LakeMaster Update button in AutoChart, map data is saved to the AC folder on the ZeroLine Map Card. The AC folder stores your custom map files. Do NOT change the contents of this folder or the map.
Note: In cases where new surveys will no longer fit in the current custom map, creation of a folder titled AC1 may be necessary. More on this topic here.
This folder is created by the Humminbird unit when AutoChart Live data is first recorded. The .ACU files are the "Live" data files created by your unit. When these files are imported/converted by AutoChart PC/Pro, an .acd file is created and used by the program to generate a map. These files are recommended to be kept grouped together, and regular backups are encouraged.
When you download charts from AutoChart LiveShare and copy them to the Zero Lines card, this folder is created and stores those map files. Similar to the AC folder, the contents must not be edited.
Your navigation data (waypoints, routes, tracks, iTracks) is saved to the MATRIX folder. When you copy the contents of this folder to back them up, keep the files together.
Note: This folder is only generated and used by GPS equipped HELIX and Legacy products. APEX, SOLIX and ONIX do not utilize the MATRIX folder.
If you’ve saved sonar recordings from your control head, they are saved to the RECORD folder on the ZeroLine Map Card. In addition to the .DAT file, there will be several other files in your recordings file (.SON, TXT, etc.). This data is required for viewing the recordings, so don’t delete these files. When you copy the contents of this folder to back them up, keep the files together.
If you’ve created Side Imaging or 360 Mosaic data in AutoChart, and then click the LakeMaster Update button, the Side Imaging Mosaic data is saved to the SI folder on the ZeroLine Map Card. Do NOT change the contents of this folder.
Note: AutoChart Pro and a Side Imaging Humminbird unit are required for this feature.
If you’ve taken screen snapshots on your control head, they are saved to the SNAPSHOTS folder on the ZeroLine Map Card. You might notice that a .DAT file or .TXT file is created for every .PNG screen snapshot. This data is required for viewing the screen snapshots on your control head, so don’t delete these files. When you copy the contents of this folder to back them up, keep the files together.