JRC JMA-5212-4/6 User Manual page 63

2.2 NAMES AND FUNCTIONS OF CONTROL PANEL KEYS
[RR/HL] [8] (Fixed Range Marker/Heading Line Off/8) Key
The ship's HL (heading line) is erased while this key is held down.
The fixed range marker display switches back and forth between display
each time the key is pressed.
This key serves as the numeric key
oFor displaying Fixed Range Marker, see section 3.4.9
oFor Heading Line Off, see section 3.4.10.
[AZ/9] (Guard Zone/9) Key
Sets a guard zone on the radar display.
This key serves as the numeric key
oSee section 3.5.20 and section 3.5.21.
[TRAILS] [0] (Radar Trails/0) Key
The radar trails time length is switched each time the key is pressed.
This key serves as the numeric key
oSee section 3.5.10.
[RADAR MENU] (Radar Menu) Key
Displays the radar menu when pressed.
[TT MENU] (TT Menu) Key
Displays the TT menu when pressed.
[RANGE+] (Range Scale +) Key
Expands the observation range scale when pressed.
oSee section 3.4.3.
[RANGE-] (Range Scale -) Key
Shrinks the observation range scale when pressed.
oSee section 3.4.3.
[VRM1] (Variable Range Marker 1) Key
Use this key to display and select VRM1.
Holding down the key for two seconds or more displays the menu for VRM1 setting.
oSee section 3.5.4.
[VRM2] (Variable Range Marker 2) Key
Use this key to display and select VRM2.
Holding down the key for two seconds or more displays the menu for VRM2 setting.
oSee section 3.5.4.
[ENT] (Enter) Key
Use this key to determine menu selection or value input.
Pressing the key has the same effect as left-clicking the trackball.
[CLR/INFO] (Clear/Information) Key
Use this key to cancel menu selection or value input.
Pressing the key has the same effect as right-clicking the trackball
[8]
during menu operation.
[9]
during menu operation.
[0]
during menu operation.
2 6
y y
and non-display
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