Garmin GPS 2 Manual

							•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 sim-
plify segments with fewer changes in direction.
•If you want to save a TracBack route, copy route 0 to an open storage route before
activating another TracBack. Activating another TracBack or storage route will over-
write the existing TracBack route. (We’ll cover more on route management in the
following pages.)
•Whenever a TracBack route is activated, the receiver will automatically erase any
temporary waypoints (e.g., ‘T001’) 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.REFERENCE
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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
another using a set of pre-defined waypoints. Routes are often used when it’s 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).REFERENCE
46
A
BC
D
Fig. 46GPS II  7/23/98 4:04 PM  Page 46 
						

							Route Definition Page (cont.)
The right side of the route definition page features several ‘function’ 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 that’s 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 ‘ROUTES’ from the menu page, and press ENTER.
The ‘route number’ field is displayed at the top of the page (Fig. 47b), with a 16-
character ‘user comment’ field to the right. If no user comment is entered, the field
will display 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 distance of the route is indicated below the
waypoint list.Fig. 47a
Fig. 47bREFERENCE
47GPS II  7/23/98 4:04 PM  Page 47 
						

							Creating and Navigating Routes
To create a route from the route definition page:
1. Highlight the ‘route number’ 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 ‘legs’. The waypoint you’re going to in a leg is called the ‘active to’
waypoint, and the waypoint immediately behind you is called the ‘active from’ way-
point. The line between the active to and the active from waypoint is called the
‘active leg’.
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. Fig. 48a
Fig. 48bREFERENCE
48GPS II  7/23/98 4:04 PM  Page 48 
						

							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 ‘route number’ field.
2. Enter the route number to be activated, and press ENTER.
3. Highlight ‘ACT?’ (Fig. 49a), and press ENTER.
To activate a route in inverted order:
1. Follow the steps above, but select ‘INV?’ (Fig. 49b), and press ENTER.Fig. 49a
Fig. 49bREFERENCE
49GPS II  7/23/98 4:04 PM  Page 49 
						

							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. The active
route page will also allow you to change the ‘ETE’ 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 ‘ETE’, and press ENTER (Fig. 50b).
2. Select ‘DTK’ or ‘ETA’, 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 ‘INV?, and press ENTER.
To clear the active route and stop route navigation:
1. Select ‘CLR?’, and press ENTER. Fig. 50a
Fig. 50bREFERENCE
50GPS II  7/23/98 4:04 PM  Page 50 
						

							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 ‘route number’ field, and press ENTER (Fig. 51a).
2. Enter the route number to be copied, and press ENTER.
3. Highlight the ‘copyto’ 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 ‘route number’ field, and press ENTER.
2. Enter the route number, and press ENTER.
3. Select ‘CLR?’ (Fig. 51b), and press ENTER.
4. Highlight ‘Yes?’, and press ENTER.Fig. 51a
Fig. 51bREFERENCE
51GPS II  7/23/98 4:04 PM  Page 51 
						

							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?— reviews the waypoint’s definition page
• Insert?— adds a new waypoint that precedes the selected waypoint
• Remove?— deletes a selected waypoint
• Change?— replaces the selected waypoint with a new waypoint
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
edited version of route 0, save it to an open storage route. Fig. 52a
Fig. 52bREFERENCE
52GPS II  7/23/98 4:04 PM  Page 52 
						

							On-Route GOTOs
At the beginning of this section, we mentioned that the GPS II will automatically
select the route leg closest to your position as the active leg. This will give you steer-
ing guidance to the desired track of the active leg. Note that the first waypoint select-
ed as the destination waypoint will be of the route leg closest to your present posi-
tion This may mean you’re not navigating to the first waypoint in the active route—
you may be navigating to the last. If you prefer to navigate a route out of sequence,
you can perform an ‘on-route GOTO’ 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 automat-
ically resume navigating the rest of the route in sequence (Fig. 53b). Fig. 53a
Fig. 53bREFERENCE
53GPS II  7/23/98 4:04 PM  Page 53 
						

							Selecting a User-Defined Navigation Page
Once you’ve 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 rel-
ative to the desired course, with an emphasis on your crosstrack error (the dis-
tance and direction you are off course) (Fig. 54b). 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, your current speed and track over the ground, and a course deviation indicator
(CDI). 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. Fig. 54a
Fig. 54bREFERENCE
54GPS II  7/23/98 4:04 PM  Page 54