Structuremap; Turning On Structuremap Overlay; Selecting Structure Source - Lowrance HDS Gen2 Touch Operator's Manual

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StructureMap™

StructureMap™ is a tool that allows you to overlay SideScan sonar
returns on top of the chart, giving you a birds-eye view of underwa-
ter structure below and beside your boat. StructureMap makes it
easier for you to visualize the underwater environment in relation to
your position and aids the user in interpreting SideScan sonar
images.

Turning on StructureMap overlay

You can view StructureMap data by turning on Structure overlay
from the Chart menu.

Selecting Structure Source

StructureMap can be used in Live mode or Saved mode. Live mode
allows you to view real-time StructureMap data on the screen. Saved
mode is used to display StructureMap data previously saved to a SD
card.
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StructureMap | Lowrance HDS Gen2 Touch