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The fuel and trip planning submenu also allows you to calculate the sunrise
and sunset times for your present position or any waypoint for a selected date.
To use the sunrise/sunset planner:
1. Highlight Trip & Fuel Planning option from the main menu and press
T
.
2. Highlight the first waypoint field and press
T
. Press the left arrow key to clear the field,
and use the
R
keypad to enter the name of the desired waypoint. You may leave the
waypoint field blank to use your present position, or press the
O
key to select the way-
point from the nearest list, the waypoint list, or the map display. To calculate the
sunrise/sunset for your present position, leave both waypoint fields blank.
3. Press
T
to confirm.
4. Highlight the date field and press
T
.
5. Enter the date you want sunrise/sunset information for (the current date and year will be
used as the default setting) and press
T
. The sunrise and sunset times for the arrival
date will be displayed at the bottom right of the planning page.
Setup Submenus
The last four options available from the Main Menu Page provide access to the
various system, navigation, alarm, and interface settings of the GPSMAP 180. The
system setup submenu is used to select the operating mode, date and time for-
mats, tone preferences, backlight timeout, and display contrast.
Operational Mode lets you select between normal operation and simulator mode.
The GPSMAP 180s system only pretends to track satellites in simulator mode, and
should not be used for actual navigation. Waypoints and routes created in
simulator
mode are saved in memory and are available for use in normal mode.
Time Offset provides a data entry field to enter the time difference between UTC
time and the local time. (See Appendix F for a list of time offsets.) When entering a
time offset, be sure to select a positive or negative offset. Note that entering an off-
set will not automatically display local time. The local setting from the Date/Time
Selection submenu must be selected.
58
A. The system setup submenu provides access to
the GPSMAP 180s time formats and con-
trast/backlight controls.
B. When entering a time offset, be sure to select
a positive or negative indicator to the left of
the offset value.
SECTION
9
SETUP MENUS
Sunrise/Sunset Planning
& System Setup