Garmin Gps Plus 2 Manual

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TracBack Tips (cont.)
¥ If the receiver is turned off or you lose satellite coverage during your trip, the TracBack
route will simply draw a straight line between any point where coverage was lost and
where it resumed.
¥ If the changes in direction and distance of your track log are very complex, 30 waypoints
may not be enough to accurately mark your exact path. The receiver will then assign the
30 waypoints to the most significant points of your track, and simplify segments with
fewer changes in direction.
¥ If you want to save a TracBack route, copy route 0 to an open storage route before acti-
vating another TracBack. Activating another TracBack or storage route will overwrite the
existing TracBack route.
¥ Whenever a TracBack route is activated, the receiver will automatically erase any tempo-
rary waypoints that are not contained in routes 1-19. If there are temporary waypoints
stored in routes 1-19, the receiver will create any new temporary waypoints using the
first three-digit number available. (You can also quickly delete all temporary TracBack
waypoints in memory by using the Ôdelete by symbolÕ method described on p. 33.)
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Route Definition Page
The last form of navigating to a destination with the GPS II
+is by creating a user-defined
route. The GPS II+lets you create and store up to 20 routes of 30 waypoints each.
The route navigation feature lets you plan and navigate a course from one place to anoth-
er using a set of pre-defined waypoints. Routes are often used when itÕs not practical, safe, or
possible to navigate a direct course to a particular destination (e.g., through a body of water
or impassable terrain) (Fig. 46).
A
BC
D
Fig. 46
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Route Definition Page (cont.)
The right side of the route definition page features several ÔfunctionÕ fields which
let you copy, clear, invert, or activate the displayed route. Routes 1-19 are used as
storage routes, with route 0 always serving as the active route you are navigating. If
you want to save a route thatÕs currently in route 0, be sure to copy it to another
open route, as it will be overwritten by the next route activation.
Routes can be copied, cleared, inverted, and activated (Fig. 47a) through the
route definition page.
To select the route definition page:
1. Highlight ÔROUTESÕ from the Menu Page, and press ENTER.
The Ôroute numberÕ field is displayed at the top of the page (Fig. 47b), with a 16-
character Ôuser commentÕ field to the right. If no user comment is entered, the field
displays the first and last waypoint in the route. The waypoint list on the left side of
the page accepts up to 30 waypoints for each route, with fields for desired track and
distance between legs. The total route distance is indicated below the waypoint list.
Fig. 47a
Fig. 47b
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							Fig. 48a
Fig. 48b
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Creating and Navigating Routes
To create a route from the route definition page:
1. Highlight the Ôroute numberÕ field, and press ENTER.
2. Enter a route number, and press ENTER. (Only open routes will be available.)
3. Press ENTER to begin entry of a route comment, if desired (Fig. 48a).
4. Enter your comment, and press the ENTER key.
5. Enter the first waypoint of your route, and press ENTER. As you continue entering the
rest of your waypoints, the list will automatically scroll down as needed (Fig. 48b).
Just like the TracBack feature, routes are broken down and navigated in smaller
segments called ÔlegsÕ. The waypoint youÕre going to in a leg is called the Ôactive toÕ
waypoint, and the waypoint immediately behind you is called the Ôactive fromÕ way-
point. The line between these two is called the Ôactive legÕ.
Whenever you activate a route, it will automatically select the route leg closest to
your position as the active leg. As you pass each waypoint in the route, the receiver
will automatically sequence and select the next waypoint as the active to waypoint.
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Activating and Inverting Routes
After a route has been entered, it can be either activated in sequence or inverted
from the route definition page. The process of activating or inverting a stored route
takes a storage route (routes 1-19) and copies it into the active route (route 0) for
navigation. The storage route is now no longer needed and will be retained in its
original format under its existing route number.
This system allows you to have an active route that you may edit during naviga-
tion and save as an entirely new route from the original. You will have to copy the
active route to an unused storage route to save it, since new route or TracBack activa-
tion overwrites route 0.
To activate a route:
1. From the route definition page, highlight the Ôroute numberÕ field.
2. Enter the route number to be activated, and press ENTER.
3. Highlight ÔACT?Õ (Fig. 49a), and press ENTER.
To activate a route in inverted order:
1. Follow the steps above, but select ÔINV?Õ (Fig. 49b), and press ENTER.
Fig. 49a
Fig. 49b
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							Fig. 50a
Fig. 50b
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Active Route Page
Once a route has been activated, the active route page will display the waypoint
sequence of your route with the estimated time enroute (ETE) at your present speed
and the distance to each waypoint (Fig. 50a). As long as you are navigating an active
route, the active route page will become part of the main page sequence of the unit.
The active route page will also allow you to change the ÔeteÕ field to display desired
track (DTK) or estimated time of arrival (ETA) for each leg. You can also clear or
invert the active route.
To display DTK or ETA for each leg:
1. Highlight ÔETEÕ, and press ENTER (Fig. 50b).
2. Select ÔDTKÕ or ÔETAÕ, and press ENTER.
The active route page also allows you to clear (stop navigating) or invert the
active route without using the route definition page.
To invert a route from the active route page:
1. Highlight ÔINV?Õ, and press ENTER.
To clear the active route and stop route navigation:
1. Select ÔCLR?Õ, and press ENTER.
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							Fig. 51a
Fig. 51b
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Copying and Clearing Routes
The route definition page is also used to copy a route to another route number.
This feature is useful when you make changes to the active (or TracBack) route and
want to save the route in its modified form for future use.
To copy a route:
1. Highlight the Ôroute numberÕ field, and press ENTER (Fig. 51a).
2. Enter the route number to be copied, and press ENTER.
3. Highlight the Ôcopy toÕ field, and press ENTER.
4. Scroll through the available routes and select a destination route number. (Only open
routes will be available.) Press ENTER to copy the route.
To clear a route from memory:
1. Highlight the Ôroute numberÕ field, and press ENTER.
2. Enter the route number, and press ENTER.
3. Select ÔCLR?Õ (Fig. 51b), and press ENTER.
4. Highlight ÔYes?Õ, and press ENTER.
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							Fig. 52a
Fig. 52b
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Editing Routes
Once a route has been created and stored, it can be edited at any time.
To edit a route from the active route page or the route definition page:
1. Select the waypoint you want to edit, and press ENTER (Fig. 52a).
An on-screen menu of editing choices will appear, with options for reviewing,
inserting, deleting, or changing the waypoint field highlighted (Fig. 52b). This field
contains the following options:
¥ Review?Ñreviews the waypointÕs definition page
¥ Insert?Ñadds a new waypoint that precedes the selected waypoint
¥ Remove?Ñdeletes a selected waypoint
¥ Change?Ñreplaces the selected waypoint with a new waypoint
You may delete a waypoint from a route, but only if the route is not active. If
you add, delete, or change the first or last waypoint of a route, the default comment
(first and last waypoint) will automatically be updated after your changes. Note:
Editing the original storage route will not affect route 0. If you want to save an edit-
ed version of route 0, save it to an open storage route.
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							Fig. 53a
Fig. 53b
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On-Route GOTOs
At the beginning of this section, we mentioned that the GPS II
+will automatical-
ly select the route leg closest to your position as the active leg. This will give you
steering guidance to the desired track of the active leg. Note that the first waypoint
selected as the destination waypoint will be of the route leg closest to your present
position. This may mean youÕre not navigating to the first waypoint in the active
routeÑyou may be navigating to the last. If you prefer to navigate a route out of
sequence, you can perform an Ôon-route GOTOÕ from the active route page.
To perform an Ôon-route GOTOÕ from the active route page:
1. Highlight the desired route waypoint, and press GOTO.
2. Once the GOTO waypoint page appears with the waypoint highlighted (Fig. 53a), press
ENTER.
Note that after you reach the on-route GOTO waypoint, the GPS II+will auto-
matically resume navigating the rest of the route in sequence using the page you
were on before performing a GOTO (Fig. 53b).
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							Fig. 54a
Fig. 54b
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Selecting a User-Defined Navigation Page
Once youÕve selected a GOTO destination or activated a TracBack, MOB, or
route, the GPS II
+will provide graphic steering guidance to the destination with one
of two navigation pages:
¥The Compass Page(default) provides a directional pointer to the destination,
with a rotating compass display to show your direction of travel (Fig. 54a). The
compass page provides better steering guidance for car travel, hiking, or biking,
where straight-line navigation usually is not possible.
¥The Highway Pageprovides a graphic highway that shows your movement
relative to the desired course, with an emphasis on your crosstrack error (the
distance and direction you are off course) (Fig. 54b). This page also features a
course deviation indicator (CDI) (see p. 78). The Highway Page is well-suited
for water or off-road recreation where straight-line navigation is possible.
Both pages provide a digital display of the bearing and distance to the destina-
tion, and your current speed and track over the ground. You can switch to either
Navigation Page at any time.
To select either Navigation Page:
1. Press ENTER from the existing Navigation Page, and ENTER again to change the page.
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