2. RADAR, CHART RADAR OPERATION
2-29
2.22.1 How to display, erase a PI line
How to display, erase a PI line from the Control Unit
Displaying a PI line: Press the INDEX LINE key until desired PI line no. appears.
Erasing a PI line: Press the INDEX LINE key until desired PI line no. appears. Press
and hold down the INDEX LINE key to erase the PI line.
How to display, erase a PI line from the trackball module
Click the PI line no. indication to select a PI line. Click the PI line status indication (ON,
OFF) to display or erase a PI line.
2.22.2 How to enable/disable PI lines
The PI line function can be enabled or disabled at any time. Dis-
able this function to hide all PI lines and also disable the PI line
box. To use the PI line box, enable this function.
1. Open the menu.
2. Select [3 NAV TOOL] and [1 PI LINE] to show the [PI LINE]
menu.
3. Select [2 SET ALL PI LINE], then select [OFF] to disable the
PI line function, or select [ON] to enable the PI line function.
4. Close the menu.
2.22.3 How to adjust PI line orientation, PI line interval
1. If not already displayed, display a PI line.
2. Put the cursor on the PI line angle indication then spin the scrollwheel to set the
angle (000-359.9). Enter a negative value to move the PI line to the opposite side
of the PI line that passes through your position.
3. Put the cursor on the PI line interval indication then spin the scrollwheel to adjust
the PI line interval.
2.22.4 How to select the number of PI lines to display
You can select the number of PI lines to display among 1, 2, 3 or 6.
PI line no.
PI line ON/OFF
PI line angle
PI line reference
PI line interval
Minimize button