The settings here are for users with S-63 charts from Datema . When enabled the charts are downloaded and occasional checks are made to see if you have any updates. When chart updates are available, you can download them directly using this automatic download feature.
As with other S-63 chart sources, you will need to register your S-63 User Permit with Datema. Please see Settings / S-63 Charts / Help for more information.
Downloads for base charts and updates from Datema can be quite large. Base charts may be over 100MB. Updates may be up to 50MB, depending on how many updates have been produced.
Recommended best practice is to only update your charts when you have a chance to validate the updates are correct.
Chart Files (Only SEAiq Pilot) : View currently downloaded chart files.
From time to time, you may wish to remove old update files in the Datema Charts. After deleting such files be sure to do an Update to download any parts of those files that might still be needed.
Download Updates (Only SEAiq Pilot) : This attempts to download charts from the Datema. You must be connected to the internet. You need an account with Datema to download charts.
You can see the status being updated as the download proceeds. When complete, a notification is given.
Keep in mind that chart updates can be quite large. You may want to wait until you are connected to a high speed internet connection before downloading updates for your charts.
Erase All Datema Charts (Only SEAiq Pilot) : This button erases all your Datema chart files, after confirmation. This cannot be undone. You can download the files again. You can erase chart files individually by going to the Charts listing and pressing Edit.
This may be useful when changing accounts to clear out old files.