JRC JMA-7710-6 Instruction Manual page 42

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.
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