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Distance and Sun Calcula-
tions Page
Operating Modes
System Setup Submenu
REFERENCE
Main Menu—
Distance/Sun &
Setup Menus
Distance and Sun Calculations
The distance and sun calculation page will give you
the distance and bearing between any two waypoints or
between your present position and a waypoint. It will
also calculate the sunrise and sunset (in local time) for a
particular date ant either your present position or any
stored waypoint.
To perform a distance and sun calculation:
1. Highlight the ‘FROM ’ field and press
ENTER.
2.
Enter the desired waypoint and press
ENTER.
3. Highlight the ‘TO’ Field and press
ENTER.
4. Enter the desired waypoint and press
ENTER.
5. The ‘DATE’ field will become highlighted. Enter the
date that you will arrive at the destination and press
ENTER.
If you leave the ‘TO’ field blank, the sunrise and sun-
set at your present location will be shown.
System Setup
The system setup page is used to select the operating
mode, time offset, and screen preferences. The GPS 12CX
has three operation modes:
• Normal Mode—operates the unit at maximum
perfomance, and provides battery life of up to 24
hours on alkaline batteries.
• Power Save Mode—allows the receiver to operate in
an energy efficient manner and provides battery life
of up to 36 hours on alkaline batteries.
• Simulator Mode—allows you to operate the unit without
acquiring satellites, and is ideal for practicing or enter-
ing waypoints and routes while at home.
To select an operating mode:
1. Highlight the ‘MODE’ field and press
ENTER
.
2. Select the desired mode and press
ENTER
.
Date and Time Setup
The date and time is located directly below the
mode field.
Date and Time information is derived from
the GPS satellites and cannot be changed
by the user
Because the time shown is UTC time (Greenwich
mean 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.