Humminbird 4090501 Marine GPS System User Manual


 
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Map Borders
Settings: Hidden, MMC/SD Only, All Visible;
Default = MMC/SD Only
Map Borders allows you to display or hide map borders. The dotted lines of a
Map Border indicate an area which contains a different map.
Spot Soundings
Settings: Hidden, Visible; Default = Hidden
Spot Soundings allows you to display or hide spot soundings, which are depth
measurements shown on the chart.
NOTE: Spot Soundings are only available with optional-purchase SD memory
cards.
Map Borders, shown with optional-purchase
Navionics® Cartography with Custom Chart Layers
Map
Borders
Bridge
(wavyred
lines)
Roads
Restricted
Area
Navaids
Coastline
Other
Pointsof
Interest
(POI)
Chart MenuTab