JRC JLR-7500 - Zooming the Screen in and out; Selecting North Up, Course Up, Relative North up; Centering the Screen on the Ship

4-12
4.3.3 Zooming the Screen In and Out
· The plot screen width can be changed to any of the widths below.
0.2, 0.5, 1.0, 2.0, 5.0, 10.0, 20.0, 50.0, 100.0, 200.0, 300.0[NM]
1. Each time
is pressed, the screen will zoom in (a narrower area will be displayed).
2. Each time
is pressed, the screen will zoom out (a wider area will be displayed).
A scale bar is displayed at the bottom right of the screen.
To turn off the scale bar, turn the "SCALE BAR" "OFF" as described in "4.3.12 Hiding Plot
Screen Symbols".
4.3.4 Selecting North Up, Course Up, Relative North Up
· The screen mode can be switched between north up, course up, and relative north up.
North Up: The top of the screen shows north, and own ship moves.
Course Up: The top of the screen shows the direction of the route of own ship, and the
surroundings move.
Relative North Up: The top of the screen shows north, the ship is fixed, and the surroundings
move.
1. Press
.
Each time the key is pressed, selection rotates as follows:
"N UP"
→
"C UP"
→
"RM N UP"
The top left of the screen displays the direction of north and the screen mode.
4.3.5 Centering the Screen on the Ship
· The ship can be displayed at the center of the screen.
1. If the cursor is displayed, press
to hide the cursor.
2. Press
.
Own ship will be displayed at the center of the screen.
· When own ship reaches the edge of the screen, the screen will automatically reposition
the display such that own ship is at the center of the screen. When Course Up is
selected, own ship will be displayed somewhat below the center of the screen.
Procedure
Procedure
Procedure
Memo