Furuno 1934C-BB, GD-1920C-BB Shifting the Display, Chart Scale, Chart Cards, Chart card overview

3. PLOTTER OPERATION

3.3Shifting the Display

The plotter display can be shifted as below.

1.Use the Trackball to locate the cursor at a screen edge. The screen shifts in the direction opposite of cursor location.

2.To turn off the cursor, press the C: CENTER soft key. This also returns the own ship marker to the screen center.

3.4Chart Scale

Chart scale (range) may be selected with the [RANGE -] or [RANGE +] key. The [-] key shrinks the chart range (image is expanded); the [+] key expands the cart range (image is shrunk). The available ranges are as below.

Charts scales

nm	0.125	0.25	0.5	1	2	4	8	16	32	64	128	256	512	1024	2048*
km	0.23	0.46	0.93	1.85	3.70	7.41	14.8	29.6	59.3	119	237	474	948	1896	3792
sm	0.144	0.29	0.58	1.15	2.30	4.60	9.21	18.4	36.8	73.7	147	295	589	1178	2356

*: 2046 or 2047 in high latitude

3.5Chart Cards

3.5.1Chart card overview

Your system reads Navionics GOLD charts or C-MAP NT MAX charts, depending on the type of processor unit you have.

When you insert a suitable chart card in the slot and own ship is near any cartographic object, a chart appears. If a wrong card is inserted or a wrong chart scale is selected, landmasses will appear hollow. Chart icons appear at the top of the display to help you select a suitable chart scale. The table below shows the 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.
	Operate the RANGE key to
	adjust chart scale.
	Suitable chart scale is
	selected.

Chart icons and their meanings

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