Garmin GPS 3 Manual

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
press ENTER.
The following menu options are available:
Waypoints—...

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...

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 ’...

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
Options.
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...

The file tab headings and setup functions for these pages are: 
Simulator Enable/Disable; Settings for simulated Track, Speed 
and Altitude
System Backlight timeout, Battery type, Display Contrast and
Display Orientation
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...

Simulator Settings
Modelets you turn the built-in simulator on or off.
To enable/disable the built-in simulator:
1. Highlight the ‘Mode’ field and press ENTER.
2. Select ‘Simulator Off’ or ‘Simulator On’ (as desired) and press ENTER.
Speedlets you select a simulated speed when the simulator is enabled.
Track Controlallows the built-in simulator to automatically align track heading to the
desired course (when using a GOTO or route), or allows you to manually adjust the track
heading, as desired....

System Settings
Backlightlets you keep the screen/keypad backlighting on continuously (‘always on’)
when selected, or enable the automatic shutoff to preserve battery life. Automatic shutoff
times from 15 seconds to 4 minutes (since last key press) are available.
To set the backlight timeout:
1. Highlight the ‘Backlight’ field and press ENTER.
2. To keep backlighting on continuously, select ‘Always On’ and press ENTER, OR
3. To set a timeout duration, select the desired time period and press ENTER....

Units Settings
Distance & Speedlets you select the desired units of measure for distance and speed
readouts in ‘Nautical’, ‘Statute’ or ‘Metric’ terms.
Headinglets you select the reference used in calculating heading information. You can
select from ‘Auto Mag Var’, ‘True’, ‘Grid’ and ‘User Mag Var’. ‘Auto Mag Var’ provides
magnetic north heading references which are automatically determined from your current
position. ‘True’ provides headings based upon a true north reference. ‘Grid’ provides
headings...

Timers Settings
User Timerlets you select a count up or count down timer. For a count down timer you
may also specify the count down duration.
To select a user timer setting:
1. For a count down timer, highlight the ‘User Timer’ field in the right-hand column, press ENTER andenter the count duration using the rocker keypad. Press ENTER to accept., then—with the left-handcolumn highlighted—press ENTER to view the User Timer options. Select ‘Down’ and press ENTER.
2. For a count up timer, highlight the...

Time Settings
Time Formatallows current time to be displayed using a 12- or 24- hour clock. This
field is also used to select between local and UTC time readouts.
To select a time format:
1. Highlight the ‘Time Format’ field and press ENTER to display the available options.
2. Select ‘Local 24hr’ or ‘Local 12hr’ to display local time references. ‘Local 12hr’ will show current
time using a traditional AM/PM format, OR
3. Select ‘UTC’ to display universal time references (also referred to as ‘Greenwich’ or...