Lowrance HDS-8m Gen2 Guide
StructureMap™
HDS Gen 2 Addendum
StructureMap is a tool that allows you to overlay SideScan sonar returns on
top of the chart, giving you a birds-eye view of underwater 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.
Refer to your HDS manual for basic information about HDS unit operation.
Refer to your StructureScan manual for more information about
StructureScan.
Same structure shown in each panel
StructureMap
SideScan
Viewing StructureMap data
You can view StructureMap data by turning on Structure overlay from the
Chart menu, or by using the Overlay softkey (HDS-8/10). StructureMap data
will start to appear on the Chart screen as soon as Structure overlay is enabled. The Structure Source setting determines whether the StructureMap
information you want to view is live or previously recorded.
1
Turning on Structure overlay
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 or the unit’s
internal memory.
Live mode
Displays the last few minutes of the Side Imaging history as a trail behind the
vessel icon. The length of this trail will vary depending on the Side Imaging
and Down Imaging range settings. The higher the range settings the longer
Vessel icon
Structure
2
History trail
the history length that will show up behind the vessel icon. Typically it will
display the last 4-5 minutes of recording. Live mode allows the user to quickly identify interesting areas of the lake and how they relate to vessel position.
It also allows the user to scroll back and zoom in on a recently scanned areas
of the lake to look at additional details of what was scanned. Live mode does
not save any data. If the unit is turned o, all recent sonar history is lost. You
must have Structurescan installed on your boat to use Live mode.
Saved mode
Displays StructureMap (.smf) les that have been created from structure
sonar log (.sl2) les. Saved mode is used to view a map of the underwater
environment that can be reviewed and examined either on or o of the
Navigating a StructureMap in saved mode
water. It can be used when revisiting an area that has already been scanned
in order to assist the user in positioning the vessel or locating specic points
of interest.
NOTE: If there is more than one StructureMap of the same area on
the same SD card, the maps will overlap on your screen. If you want
to have more than one map of the same area, you should put the
maps on separate SD cards.
3
Loading...