GTD-110/150
Chapter 5
Basic Operation
0093151542-06
5-7
5.3.2 Turning the power off
Press the POWER key. All the user settings are saved to the internal memory.
5.3.3 Changing the display and panel brightness
Every press of the BRT key changes the display brightness in 6 steps and illumination level in 3 steps.
The first press of the BRT key shows the brilliance scale and the brightness of the screen is set to the
maximum. Subsequent presses of the key lowers and then increases the brightness of the screen and
the illumination in a cyclic way.
5.4 Displaying the current position
Your own ship’s position will be displayed in latitude/longitude or LOP (Lane Of Position) coordinate.
The LOP coordinate display is available for Loran C. Select “DISPLAY SETTINGS” and then
“POSITION DATA DISPLAY” to display own ship’s position. For detail, refer to Para 6.4.1 “Position data
display” for setting procedure.
CAUTION
The time between turning the power on and off must be at least 1 second to avoid malfunction
of the system. If the screen display becomes abnormal, turn the power off and then turn it on.
Own ship
’s position mark
Position fix status display. When no GPS
fix is available,
this sign is not displayed.
Current position (lat/lon) Bearing Speed
Figure 5.3 Own ship’s position
CAUTION
To achieve a proper position fix by GPS, the GPS receiver needs signals from more than 3
satellites. If this condition is not met, the receiver cannot carry out a position fix calculation,
and the error message “Fixing unable” is shown on the screen.