Furuno color video plotter GD1720C - Manual (Page 46)

2. RADAR OPERATION
2-15
Cursor
Place cursor
where desired. Press the MANUAL soft key.
SHIFT
Manual shift
▲
▼
1
SELECT TARGET NO.
Target no. selection window
5. Use the ENTER knob to select number (1-10), then push the ENTER knob. If the target
number does not exist several beeps sound and the zoom function is cancelled.
To cancel, press the CURSOR LOCK soft key.
Note:
The zoom window blends in with the background when the background color for the
radar picture is white. If the window is difficult to see, change the background color.
2.16 Shifting the Picture
Own ship position, or sweep origin, can be displaced manually or automatically to expand
the view field without switching to a larger scale. Zoom is not available when the display is
shifted.
2.16.1 Manual shift
The sweep origin can be shifted in
any presentation mode to a point
specified by the cursor by up to 50%
of the range in use in any direction.
1. Locate the cursor anywhere within
the effective radius of the display.
2. If not displayed, press the
HIDE/SHOW key to show the
radar soft keys.
3. Press the RADAR DISPLY soft key.
4. Press the SHIFT soft key.
5. Press the MANUAL soft key to shift. The heading line shifts to the cursor location.
SHIFT appears at right-hand corner of the display.
To cancel shift, press the RADAR DISPLY, SHIFT and OFF soft keys.
2.16.2 Automatic shift
The amount of automatic shift is calculated
according to ship’s speed, and the amount of
shift is limited to 50% of the range in use. For
example, if you set the shift speed setting for 15 knots and the ship is running at 10 knots
the amount of shift will be about 34%. The formula for determining shift amount is as shown
above. Automatic shift mode is only available in the head-up mode.
Ship's speed
Shift speed setting
X 0.5 = Amount of shift(%)