3D Structure Mapping - Lowrance FishHunter 3D/PRO Operator's Manual

3D Structure mapping

You can create custom 3D Structure Maps* of your favorite
fishing spots by placing the FishHunter 3D in the water and
then reeling/drifting/trolling it over the area you want to
measure.
Use the color coded scale to see drop offs or toggle on/off
the grid overlay to know exactly where the drop offs are, their
relative depth and distance. Every map has a GPS tag so you
can save the map and fish in the same spot next time.
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3D Structure mapping | FishHunter 3D/PRO Operator Manual