Furuno GP-1650F, GP-1650DF Indices and chart enlargement, Remarks on chart display, Chart symbols

Indices and chart enlargement

When the soft key ZOOM OUT is used, you will see several frames appear on the chart. These frames are called indices and they show you what parts of the chart can be en- larged in the current picture range. The ar- eas circumscribed with smaller frames can be enlarged, but the area enclosed by the largest frame cannot.

Figure 3-5 Sample chart (Japan and South Korea) showing indices

Remarks on chart display

A chart will not be displayed in the following conditions:

•When the chart scale is too large or too small.

•When scrolling the chart outside the indi- ces.

When this happens, select proper chart scale.

Chart symbols

FURUNO mini chart card

The table below shows FURUNO mini chart symbols and their meanings.

Table 3-2 FURUNO chart symbols

Symbol Description

Summit

Wreck

Lighthouse

Lighted Buoy

Buoy

Radio Station

Position of Sounding

Obstruction

Fishing Reef

Platform

Anchorage

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