Furuno GP-3500F User Manual
Page 43
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2. PLOTTER AND PILOT DISPLAY DESCRIPTION
2-13
Indices and chart enlargement
When the [ZOOM OUT] 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 zoomed. The areas circumscribed with smaller frames can show more
detailed information.
Indices
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