JRC JMA-7710-6, Instruction Manual

Page: 44 / 314

2 – 3
2.1
Operation controls and keys
Those preceded by a number enclosed in a box are the controls and keys used with ATA model NCA-843.
z
[SUB MENU] key
Displays the sub menu on the screen.
x
[MAIN MENU] key
Displays the main menu on the screen.
e
Trackball
Moves the cursor to a desired position.
r
/
t
[ − −
− −
− ] and [ ＋ ＋
＋ ＋
＋ ] keys
Select the range between 0.125 and 96/120 nautical mile.
y
[TUNE] control
Controls the target on the screen to be seen most clearly.
u
[GAIN] control
Controls the receiving sensitivity of the radar.
i
[RAIN] control
Decreases clutter videos due to rain or snow.
o
[SEA] control
Decreases clutter videos due to reflection from the sea surface.
!0
[BRILL] control
Adjusts the brilliance of the display.
⁄1
[COLOR] control
Sets the color for the own and other ship tracks, marks and lines.
(7 colors: white, sky, blue, green, yellow, pink and red)
!2
[FUNC] key
Selects the pre-set video processing
⁄3
[GZ MENU] key
Displays the menu for setting an alarm.
!4
[MAP] key
Switches the system to the radar, composite or plotter mode.
!5
[AZI MODE] key
Switches the screen to the true bearing, relative bearing, course-up or stabilized course-up mode.
!6
[HL OFF] key
The HL (Heading Line) can be cleared while this switch is being pressed.