September 25, 2014

How to Make Your Own Lake Map

Making your own lake map or improving an existing one has never been easier. Navionics allows users to record sonar logs and then upload them to navionics.com. Within a week your map will be updated. Then when you update your Navionics+ card, you will have the latest map data.

I have been doing this all summer and here is an example of a before and after for Long Lake, WA.


Before

After

Before

After

You can find detailed instructions for all of the major electronics brands here.

Video How-To for Lowrance HDS Gen 1



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