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Lowrance - LVR-250 Installation and Operation Instructions 23
2-4-1 Set the Backlighting Level
Select BACKLIGHT.1.
Select a comfortable backlight level using + or - to change 2.
the setting.
Press ENT to enable the setting and return to the menu.
3.
Note: The DISTRESS key backlighting cannot be switched off.
2.4.2 Set the Contrast Level
Select CONTRAST.1.
Select a comfortable contrast level using + or - to change the 2.
setting.
Press ENT to enable the setting and return to the menu.
3.
2-5 GPS Data and Time (GPS/DATA)
If the boat has an operational GPS navigation receiver, the VHF
radio automatically detects and updates the vessel position and
the local time.
However, if the GPS navigation receiver is disconnected or absent,
you can specify the vessel position and the local time manually,
using the GPS/DATA option.
This information is important because it will be used if a DSC distress call is transmitted.
You can also select GPS Alert and GPS Simulator options.
2-5-1 Manually Enter Position and UTC Time (MANUAL)
Note that this function is available only if an operational GPS receiver is not connected.
Select GPS/DATA, then MANUAL. 1.
Enter the latitude, then the longitude, then the UTC. 2.
Press ENT when all the information is correct. 3.
The vessel’s latitude and longitude are shown on the screen, with the UTC time. The
prefix MAN indicates a manual entry. The manual entries are cancelled if a real GPS posi-
tion is received.
MANUAL LL
––’ ––’ ––––N
––’ ––’ ––––W
MAN ––:––UTC
GPS/DATA
>MANUAL
SETTING
CONTRAST
LO HI
MENU SELECT
BACKLIGHT
CONTRAST
>GPS/DATA
BACKLIGHT
LO HI