Furuno GD-3300 Operator's Manual page 21

1-10
Chart icons
The display shows three different icons to alert the operator to chart
status. These are as described in Table 1-2.
Table 1-2 Chart icons
Icon Reason Displayed
• Card is not inserted
properly.
• Chart scale is too small.
• This icon means the chart is displayed properly; full
chart reliability.
• This icon means poor
chart reliability because
chart is overenlarged.
FURUNO chart symbols
The table below shows FURUNO chart symbols and their meanings.
Table 1-3 FURUNO chart symbols
Symbol Description
Summit
Wreck
Lighthouse
Lighted Buoy
Buoy
Radio Station
Remedy
• Insert card.
• Enlarge chart by [ZOOM
IN] key.
Use chart with extreme
caution.
Shrink chart by [ZOOM
OUT] key.
Symbol Description
Position of
Sounding
Obstruction
Fishing Reef
Platform
Anchorage