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System Setup
The system setup page is used to select the operat-
ing mode, time offset, and screen preferences. The GPS
12XL has two operating modes:
•
Normal Mode
operates the unit at maximum
performance, and provides battery life of up to 12
hours on alkaline batteries.
•
Simulator Mode
allows you to operate the unit
without acquiring satellites, and is ideal for prac-
ticing or entering waypoints and routes while at
home.
To select an operating mode:
1. Highlight the ‘MODE’ field, and press
E
.
2. Select a mode, and press
E
.
Date and Time Setup
The date and time is located directly below the
mode field. Note: Date and time information is derived
from the GPS satellites and cannot be changed by the
user. Because the time shown is UTC (Greenwich mean
time) time, you will need to enter a time offset to dis-
play the correct local time for your area. To determine
the time offset for your area, note your position and
refer to the chart in Appendix C.
To enter the time offset:
1. Highlight the ‘OFFSET’ field, and press
E
.
2. Enter the time offset, and press
E
.
Note: Move the cursor to the left to change the plus
or minus sign.
Time Format
The time display shown on the system setup and
Position Pages may be set to display the time in a 12-
or 24-hour format.
To select the time format:
1. Highlight the ‘HOURS’ field, and press
E
.
2. Select 12- or 24-hour display, and press
E
.
41
The GPS 12XL’s two oper-
ating modes are accessed
through the system setup
submenu.
REFERENCE
Date & Time
Setup
To display the correct
local time, you must enter
the appropriate offset
from the chart at the end
of Appendix C.
GPS 12XL Manual Rev C 7/10/98 11:19 AM Page 41