
14 GPSMAP 400/500 Series Owner’s Manual
Using Charts
—adjusts the amount of detail shown on the map at different
zoom levels.
Press right on
the Rocker to
increase map
detail.
Press left on
the Rocker to
decrease map
detail.
—draws an extension line from the bow of the boat in
the direction of travel.
• —turns the heading line off.
• —sets the distance to the end of the heading line.
• —sets the amount of time until you reach the end of the
heading line.
—displays a basic world map or satellite imagery (when
is selected).
—turns spot soundings on or off and sets a dangerous
depth.
—identies a selected depth. Areas with depths
shallower than the specied value are shaded in blue, while areas
with depths greater than the specied value are shaded in white. The
shading is always drawn at, or deeper than, the selected depth.
—changes symbol preferences.
• —adjusts the size of the navaid symbols shown on
the map.
• —selects the navaid symbol set (NOAA or IALA).
• —turns the display of land POIs (points of interest)
on or off.
• —turns the sector in which a navigational light
is visible on or off. Selecting lters out light sectors,
depending on the zoom level.
• —turns chart borders on when using a BlueChart
g2 Vision SD card and you want to see what area the maps cover.
• —turns camera icons (page 21) on or off when
using a BlueChart g2 Vision SD card.
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