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1. OPERATIONAL OVERVIEW
This chapter provides the basic information needed to get you started using your radar,
video plotter.
1.1 Operating Controls
Display unit controls
The radar, video plotter, sounder and chart systems are operated with the controls of the
display unit. Ten keys are labeled and they provide the function shown on their labels. The
five soft keys provide various functions according to current operating mode. The ENTER
knob mainly functions to register selections on the menu and adjust the EBL, VRM and gain.
The Trackball’s main function is to move the cursor across the screen. When you correctly
execute an operation, the unit generates a beep. Invalid operation causes the unit to emit
three beeps.
Trackball*
Shifts cursor EBL/VRM and
cursor; selects menu items and options.
Displays the mode
selection window.
Soft keys
Momentary press:
Registers own ship's
position as a waypoint.
Press three seconds:
Marks man overboard
position.
Opens/closes the main menu.
Radar: Displays the soft keys for adjustment of
gain, A/C SEA and A/C RAIN (FTC in case the
the radar source is MODEL 17x4 series).
Sounder: Adjusts gain.
Long press: Turns power off.
Momentary press: Turns the power on;
opens the display for adjustment of brilliance
and hue; shows RADAR STBY/TX soft key.
ENTER knob
Push: Registers setting.
Rotate: Adjusts, gain, VRM, EBL, etc.;
selects menu items and options. May also
be used to enter alphanumeric data.
Clears data; erases selected mark.
Opens/closes the alarm menu.
Shows or hides the soft
keys, function keys,
nav data alternately.
Chart drive
Selects a range.
EBL
VRM
GAIN
ABC
1
JKL
4
STU
7
DEF
2
MNO
5
VWX
8
_'#
0
GHI
3
PQR
6
YZ&
9
Enter alphanumeric data.
Displays soft keys for EBL/VRM.
*: When it has been some time since the trackball was last operated, the cursor may not track the
movement of the trackball. In this case, move the trackball rapidly and then finely.