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The GPS III’s Main Menu provides access to the waypoint, route, track log, timer
and setup features of the receiver. The Main Menu can be accessed at any time using
the MENU key.
To display the Main Menu, press the MENU key twice.
The 6 menu options are divided into categories by function: waypoints/nearest
waypoints, routes/track logs, trip computer, and system setups.
To select an option from the Main Menu, highlight the desired item and
The following menu options are available:
Waypoints— allows you to create, edit or delete waypoints. See pages 42-47.
Nearest— displays up to nine nearest waypoints within 200 miles of your present
position. See page 48.
Routes— allows you to create, edit, activate or delete routes. See pages 54-58.
Track Log— lets you specify whether or not to record a track log (an electronic
‘breadcrumb trail’ recording of your path), define how it is recorded or save track
log data for future use. The Track Logs Page also provides an indicator of the mem-
ory used for the active track log and options to clear the track memory or start a
TracBack route. See pages 52-53 for TracBack information.
The Track Logs Page is divided in two main sections: one for the active log (the log
currently being recorded) and available memory, and the second section showing
any saved track logs and the total number saved. The active log stores up to 1900
track log positions, based upon the criteria specified in the Track Log Options. Up
to 10 additional track logs may be saved in memory, with up to 250 track log posi-
tions in each saved log.
Press MENU twice to display
the Main Menu.
Select the desired menu option
by highlighting it with the
rocker keypad and pressing
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Track Log Settings
To view the Track Log Options, highlight ‘Active Log’ or any of the ‘Saved Logs’
(on the Track Logs Page) and press MENU.
The following options are available:
TracBackconverts the track log data in memory into an inverted route (of up to 30 way-
points) and begins navigation along the route. See pages 52-53.
Save Active Logextracts up to 250 of the most significant points along the active log,
saves this information as a ‘saved log’, and clears the active log. Up to 10 saved logs may
be stored in memory, along with a 13-character name. The default name is the date the
log was saved, but you can specify any name you wish.
To rename a saved log:
1. Highlight the saved log you wish to rename and press ENTER. An information box appears, show-ing the name of the saved log, the number of points in the track log and the total distance covered.
2. Highlight the track log name field and press ENTER.
3. Use the rocker keypad to enter the new name for the saved log. Press ENTER when finished.
Clear Active Log / Delete Saved Logclears the selected track log, active or saved, from
memory. Highlight the ‘Active Log’ to display the ‘Clear Active Log’ option, or highlight
any of the ‘Saved Logs’ to display the ‘Delete Saved Log’ option. You should select the
‘Clear Active Log’ option at the beginning of any trip where you’ll want to convert the
track log data into a TracBack route. See pages 52-53.
To delete a track log:
1. Highlight the track log you wish to delete (active or saved) on the Track Logs Page, and press
MENU to display the Track Log Options.
2. Highlight ‘Clear Active Log’ or ‘Delete Saved Log’ and press ENTER.
3. Press ENTER again to confirm (or press QUIT to cancel).
The Track Logs Page shows
available memory for the
active log (the log currently
being recorded) and lists any
saved track logs.
From the Track Logs Page,
press ENTER to view the
Track Log Options.
Main Menu: Track Logs
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Track Log Settings (cont.)
Delete Allallows you to clear all track logs, active and saved, from memory.
To delete all track logs from memory:
1. Select ‘Delete All’ from the Track Log Options and press ENTER.
2. Press ENTER again to confirm (or QUIT to cancel).
Setup Loggingprovides a setup screen to define how track log data will be recorded. The
Setup Logging Page provides options for ‘Record Mode’, ‘Interval’ and ‘Interval Value’.
Record Modelets you select one of three track recording options:
‘Off ’ – No track log will be recorded.
NOTE: Selecting ‘Off ’ will prevent you from using the TracBack feature.
‘Fill’ – A track log will be recorded until the track memory is full.
‘Wrap’ (default) – A track log will be continuously recorded, wrapping through
available memory; replacing the oldest track data with new data.
Intervaldefines the frequency with which the track plot is recorded. Three
interval settings are available:
‘Resolution’ (default) – Records track log based upon a user-defined variance
from your course over ground. The resolution option is recommended for the
most efficient use of memory and TracBack performance. The distance value
(entered in the ‘Interval Value’ field) is the maximum left/right deviation
allowed from the last defined ground track before recording a new point.
‘Time’ – Records track log based on a user-defined time interval.
‘Distance’ – Records track log based on a user-defined distance between points.
Interval Valuedefines the distance or time interval used to record the track log.Select ‘Save Active Log’ to save
the active log data for future
use. This process extracts the
most significant points along
the active route (up to 250)
and creates a ‘saved log’.
The ‘Setup Logging’ option
allows you to change the
criteria used to record the
active track log.
Main Menu: Track Logs
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Trip Computer— provides readouts for average speed, maximum speed, odome-
ter, trip odometer and trip timer. These readouts can be reset from the Trip Computer
To reset a trip computer readout(s):
1. Press MENU (with the Trip Computer Page displayed). An options list is displayed.
2. To reset all trip computer readouts, highlight ‘Reset All’ and press ENTER.
3. To reset a single readout item, highlight the desired option and press ENTER.
NOTE: The ‘Reset Trip’ option resets trip odometer, trip timer and average speed readouts.
Setup— provides a group of pages to perform various system setup functions,
including selection of position format, units of measure, setting various alarms, con-
figuring the display and backlighting. Each available page is denoted by a ‘file tab’
which identifies the function of that page.
To select a Setup option, highlight the file tab for the desired function.
The information is automatically displayed when the file tab is highlighted.
‘Trip Computer’ provides
readouts for the trip odometer,
trip timer, average speed and
maximum speed. Options are
provided to reset these figures.
The ‘Setup’ option uses file
tabs (across the top of the
page) for quick selection/
review of unit settings.
Main Menu / Setup Menu
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The file tab headings and setup functions for these pages are:
Simulator Enable/Disable; Settings for simulated Track, Speed
System Backlight timeout, Battery type, Display Contrast and
Units Units of measure settings for – Distance & Speed,
Heading and Altitude
Timers Count up/down User Timer, Battery Timer, and
usage timers for current day and since new
Time Formats for local 24 hour, local 12 hour (AM/PM) or
UTC; Difference setting from UTC to local time
Alarms Alarm Clock, Arrival Alarm, Off Course Alarm
Position Position Format (latitude/longitude, UTM/UPS,
Maidenhead, regional grids); Map Datum selection
Interface Format (NMEA, RTCM, GARMIN proprietary);
Mode setting for use with PC or a second unit
The following pages describe, in more detail, the available settings for each Setup
file tab item.
To display the desired
information, highlight the
appropriate file tab (using the
LEFT/RIGHT keys on the
Once the desired setup option
is selected, use the UP/
DOWN keys on the rocker
keypad to select the desired
item on the page.
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