Shifting The Display; Changing Chart Scale - Furuno GP-3500 Operator's Manual

2. PLOTTER AND PILOT DISPLAY DESCRIPTION
2.3

Shifting the Display

The display can be shifted on the plotter display and pilot display.
1. If the cursor is turned on, press the [CURSOR ON/OFF] key to turn it off.
2. Operate the trackball.
The display shifts in the direction which the trackball is rolled.
3. Press the [CENTER] key to return the own ship position to the screen center.
(On the pilot display, the own ship's mark is positioned slightly below the
center of the screen.)
Note: When own ship reaches an edge of the screen, it is returned to the
2.4

Changing Chart Scale

It is useful to change chart scale to
Show destination on the display
Find how close you are to your destination
View ship's tracks around a fishing ground
When cursor is off
Own ship is at the screen center. The display is enlarge or shrunk from the
screen center.
When cursor is on
The range scale is enlarged or shrunk with the cursor position as center.
Press the [ZOOM IN] key to enlarge the scale, or [ZOOM OUT] key to shrink.
After pressing the [ZOOM IN] or [ZOOM OUT] key, the current range appears
at the center of the screen for a second. The range value shows the distance
between the left-side and right-side edges of the screen.
(The larger value may be different from the above depending on latitude of own
ship.)
Note 1: When the display is expanded or shrunk beyond the range of the chart
card in use warning icon appears, along with the appropriate chart icon.
See paragraph 2.7.
Note 2: You can choose the ranges to use. See paragraph 9.2.3.
Note 3: The width of the screen can be shown with scales instead of the
distance. See paragraph 9.3.
2-8
center of the screen automatically.
Ranges (default setting)
0.125 0.25 0.50
8.00 12.0 16.0
512 1024
0.75 1.00 1.50
24.0 32.0 48.0
2.00 3.00 4.00
72.0 96.0 128
6.00
256