Furuno GP-1850WF Selecting Chart Scale/Range, Mini Chart Cards, Indices and chart enlargement

3.5Selecting Chart Scale/Range

Chart scale (range) may be selected with the ZOOM IN or ZOOM OUT soft key. ZOOM IN expands the chart; ZOOM OUT shrinks it.

3. PLOTTER DISPLAYS

3.6Mini Chart Cards

The mini chart cards contain nautical charts. When you insert a suitable mini chart card in the slot and your boat is near land, a chart appears.

When a wrong card is inserted or a wrong chart scale is selected, the land will be hollow. Insert the proper card and select a suitable chart scale. Chart icons appear to help you select a suitable chart scale. The table below shows the chart icons and their meanings.

Chart icons and their meanings

Icon Meaning

Proper card is not inserted or chart scale is too small. Press the ZOOM IN soft key to adjust chart scale.

Chart scale is too large. Press the ZOOM OUT soft key to adjust chart scale.

Suitable chart scale is selected.

Indices and chart enlargement

When the ZOOM OUT soft key 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 enlarged in the current picture range. The areas circumscribed with smaller frames can be enlarged, but the area enclosed by the largest frame cannot.

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