Garmin Gps Plus 2 Manual

							Note: Using the screen back-
lighting can greatly reduce
battery life. If youÕre using
your GPS primarily in day-
light hours, you should keep
the backlight timeout at the
default 15-second setting.
25
Reference
Screen Backlighting
The GPS II
+Õs backlight feature illuminates the screen display for a user-defined
interval (the default is 15 seconds) after every keystroke. There are three stages of
backlighting. When backlighting is on, a bulb icon will appear at the bottom left of the
sky view (Fig. 25). To adjust the duration of the screen backlighting, refer to the opera-
tion setup section (see p. 75). 
To turn the screen backlighting on:
1. Cycle through the three levels of backlight by pressing the red power key.
To turn the screen backlighting off:
1. Press the red power key.
Whenever the GPS II+Õs backlighting is off, the bulb icon disappears from the
Satellite Page. 
Fig. 25
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							The graphic compass display is
designed to show your current
track and doesnÕt serve as a
true magnetic compass while
youÕre standing still.
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Reference
Position Page
The second page in the GPS II
+Õs main page sequence is the Position Page. This
page shows you where you are, what direction youÕre heading, and how fast youÕre
going, and itÕs most useful when you are traveling without an active destination way-
point. The graphic heading display at the top of the page indicates the direction
youÕre heading (only while youÕre moving).
Directly below this display are the track, speed, and trip odometer fields
(default). Track is the compass direction representing your course over the ground,
and speed is how fast youÕre moving. The lower left-hand corner of the page shows
your current latitude and longitude in degrees and minutes. The GPS II
+uses this
basic information to mark exact positions as waypoints, which help guide you from
one place to another. The lower right-hand corner of the page contains the altitude
field (default). Below that field is a 12- or 24-hour clock.
Both the trip odometer and the altitude fields are user selectable, and both offer
a trip odometer, trip timer, and elapsed time. This way, you can always be sure of
viewing this information regardless of the option youÕve selected to view in the other
user-selectable field.
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							The position format and units
of measure for speed, distance,
position, and altitude are all
user-selectable through the
navigation setup page (see p.
76). The 12/24 hour clock and
time offset options are avail-
able from the system setup
page (see p. 73).
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Reference
The following user-selectable options are available on the Position Page:
Trip Odometer (TRIP)Ñtotal distance traveled since last reset.
Trip Timer (TTIME)Ñtotal (cumulative) time in which a ground speed
has been maintained since last reset.
Elapsed Time (ELPSD)Ñhours and minutes since last reset.
Average Speed (AVSPD)Ñaverage speed traveled.
Maximum Speed (MXSPD)Ñmaximum speed traveled since last reset.
Altitude (ALT)Ñ vertical distance above sea level. 
To reset a timer, speed measurement, or odometer:
1. Highlight the user-selectable field, and press ENTER.
2. Press ENTER to confirm the ÔRESET?Õ prompt, or QUIT to exit.
The trip odometer, trip timer, and average speed fields are linked, so resetting
one of these options in one user-selectable field will automatically reset the corre-
sponding data in the other. This allows the information provided in these fields to
always be relative to your current trip.
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							Fig. 28a
Fig. 28b
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Reference
Maximum Speed Field
To obtain the most accurate reading of average speed, keep in mind that due to
the sensitivity of the GPS II
+Õs antenna, your maximum speed value may include the
effects of rapid movement, such as swinging your arm while holding the unit.
To reset the maximum speed field:
1. Highlight the Ômaximum speedÕ field, and press ENTER.
2. Press ENTER to confirm the ÔRESET?Õ prompt (Fig. 28a).
Altitude Field
When the GPS II
+is acquiring satellites or navigating in the 2D mode, the last
known altitude will be used to compute your position. If the altitude shown is off by
several hundred feet, you can manually enter your altitude for greater accuracy. In
cases where the GPS II
+has only 2D coverage, entering your approximate altitude
will enable the receiver to determine a 3D fix.
To enter an altitude:
1. Highlight the ÔaltÕ field, and press ENTER (Fig. 28b).
2. Enter a value, and press ENTER.
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							Fig. 29
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Marking a Position
The GPS II
+ allows you to mark, store, and use up to 500 positions as way-
points. Waypoints serve as electronic markers that let you keep track of starting
points, destinations, navaids, etc. A waypoint position can be entered by taking an
instant electronic fix, by manually entering coordinates (see p. 34), or by referencing
a bearing and distance to a known position (see p. 35).
To mark your present position:
1. Press MARK. The mark Position Page will appear, showing the captured position and a
default three-digit waypoint name (Fig. 29).
2. To save a default name and symbol, press ENTER to confirm the ÔSAVE?Õ prompt.
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							Fig. 30a
Fig. 30b
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Reference
To enter a different waypoint name:
1. Highlight the waypoint name field, and press ENTER (Fig. 30a).
2. Make the appropriate changes, and press ENTER.
3. Highlight ÔSAVE?Õ, and press ENTER.
Note: To enter a different waypoint symbol or comment, see pp. 36-37.
To add this waypoint to a route:
1. Highlight the Ôadd to route numberÕ field (Fig.30b), and press ENTER.
2. Enter a route number, press ENTER to confirm the route number, and ENTER again to
save the waypoint.
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							Use the function prompts on
the left side of the waypoint
definition page to review,
rename, or delete stored way-
points and to create new way-
points manually.
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Reference
Waypoint Pages
The GPS II
+has three waypoint pages that let you quickly manage up to 500
waypoints. These pagesÑnearest waypoints, waypoint list, and waypoint defini-
tionÑcan be accessed through the Menu Page.
To select a waypoint page:
1. Access the Menu Page, and highlight a waypoint page option (Fig. 31).
2. Press ENTER.
Fig 31
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							Fig. 32a
Fig. 32b
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Nearest Waypoints Page
The nearest waypoints page shows the nine nearest waypoints that are within
100 miles of your present position, with the bearing and distance noted for each
waypoint (Fig. 32a). This page will also let you retrieve a waypoint definition page
or GOTO a selected waypoint right from the list.
To review the waypoint definition page of a selected waypoint:
1. Highlight the desired waypoint.
2. Press ENTER.
To return to the nearest waypoint page:
1. Highlight ÔDONE?Õ (Fig. 32b).
2. Press ENTER.
To GOTO a highlighted list waypoint:
1. Highlight the desired waypoint, and press GOTO.
2. Press ENTER.
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							Fig. 33a
Fig. 33b
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Waypoint List Page
The waypoint list page provides a complete list of all waypoints currently stored in
the GPS II
+and their respective waypoint symbols. The total number of empty and
used waypoints is also indicated. From the waypoint list page, you can retrieve a way-
point definition page, delete all user-defined waypoints, delete waypoints by symbol, or
review and perform a GOTO to a selected waypoint (see p. 32).
To delete all user-defined waypoints:
1. Highlight ÔDELETE WPTS?Õ (Fig. 33a), and press ENTER.
An options page will appear, asking if you want to delete all user-defined way-
points or if you want to delete waypoints by symbol type.
1. Highlight either ÔALLÕ or ÔSYMBOLÕ (Fig. 33b), and press ENTER. 
If you highlight ÔSYMBOL,Õ youÕll be asked to select a symbol.
1. Select the symbol to be deleted, and press ENTER.
2. Press ENTER to confirm the ÔDONEÕ prompt, highlight the ÔYES?Õ prompt, and press ENTER.
Note: This feature is handy for deleting temporary waypoints created by the
TrackBack function.
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							Fig. 34a
Fig. 34b
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Waypoint Definition Page
The waypoint definition page lets you create new waypoints manually or review
and edit an existing waypointÕs coordinates, symbols, and comments. It is also used
to delete an individual waypoint from memory (see p. 38). To create a new waypoint
manually, youÕll need to know its position coordinates or its approximate distance
and bearing from an existing waypoint.
To create a waypoint by entering coordinates:
1. From the waypoint definition page, highlight ÔNEW?Õ (Fig. 34a), and press ENTER.
2. Enter a waypoint name, and press ENTER.
3. Press ENTER to select a waypoint symbol, make your selection, and press ENTER.
4. Highlight the ÔDONE?Õ prompt, and press ENTER to return to the waypoint page.
5. Highlight the ÔpositionÕ field, enter your position (Fig. 34b), and press ENTER.
6. Press ENTER to confirm the ÔDONEÕ prompt.
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