Garmin GPS 2 Manual

							Moving Map Page
The GPS II’s next page, the moving map page, shows your movement as a real-
time track log (electronic breadcrumb trail), and your present position as a diamond
icon in the center of the map. You’ll notice the black square below the diamond,
which represents the position you just created (‘HOME’), and the line between the
two, which shows your track (Fig. 15a).
Nearby waypoints are represented as squares, with the waypoint name listed
above the square. When you want to change the map scale, simply use the zoom
keys (“in” and “out”) to select the desired scale. We’ll cover more about other infor-
mation you can obtain from this field in the reference section.
1. Now turn 90º to your right and continue walking at a fast pace for another 2-3 minutes.
Notice how the display changes, always keeping the direction you are moving at the
top of the map. (Fig. 15b)Fig. 15a
Fig. 15bGETTING-STARTED TOUR
15GPS II  7/23/98 4:03 PM  Page 15 
						

							Going To a Waypoint
Once you’ve stored a waypoint in memory, you can use the GPS II to guide you
to it by performing a simple GOTO. A GOTO is really nothing more than the receiv-
er drawing a straight-line course from your present position to the destination you’ve
selected. To see how it works, let’s try navigating back to our starting position, the
HOME waypoint.
To select a GOTO destination:
1. Press GOTO.
2. Highlight the ‘HOME’ waypoint, (Fig. 16a) and press ENTER.
You’ll notice that you’ll automatically be on the default navigation page, the com-
pass page (Fig. 16b). Let’s navigate back to ‘HOME’ using this page. Fig. 16a
Fig. 16bGETTING-STARTEDTOUR
16GPS II  7/23/98 4:03 PM  Page 16 
						

							Compass Page
The compass page is the default navigation page for the GPS II, and provides a
rotating compass in the middle of the page. The compass ring shows your actual
direction of travel while you’re moving, and the pointer arrow in the middle points
to your destination (selected waypoint). As you move toward ‘HOME’, notice how
the compass rose and the pointer arrow provide a clear picture of the direction
you’re moving and the direction of ‘HOME’. Note: The pointer arrow may not give
accurate direction guidance unless you are moving at a fast pace.
The bearing and distance to a waypoint are displayed at the top of the screen,
and your current track and speed are shown below. The default ‘ETE’ field, at the
bottom of the screen between the ‘track’ and ‘speed’ fields (Fig. 17a), is a user-selec-
table field that can provide a variety of navigation information. We’ll cover more
about that field in the reference section of this manual.
As you get close to ‘HOME’, you’ll be alerted to press PAGE. The GPS II will give
you the message “Approaching HOME” (Fig. 17b). Once you’ve arrived, you’ll notice
the distance field will read 0.00.
To continue the tour, let’s move on to the next page:
1. Press PAGE.Fig. 17a
Fig. 17bGETTING-STARTED TOUR
17GPS II  7/23/98 4:04 PM  Page 17 
						

							Menu Page
You’ve already seen the first four pages in action by acquiring satellites, marking
a position, and navigating to a destination. The last page available from the main
page sequence is the menu page (Fig. 18a), which provides access to the GPS II’s
waypoint management, route, and setup features.
Clearing the Track Log
After you’ve practiced and used the GPSII for a few trips, you may find that
your map display has become cluttered with track plots of your every move. To get a
feel for how the map and track features work, let’s clear the track log (the plot points
left on the map page) we’ve just created during the Getting Started tour.
To clear the track log:
1. Scroll to the map page, and press ENTER.
2. Highlight the ‘track setup’ field, and press ENTER.
3. Highlight the ‘clear log?’ field (Fig. 18b), and press ENTER.
4. Highlight ‘Yes?’, and press ENTER. Fig. 18a
Fig. 18bGETTING-STARTEDTOUR
18GPS II  7/23/98 4:04 PM  Page 18 
						

							Congratulations! You’ve just completed the Getting-Started Tour! You now know
enough about the GPS II to go out and have some fun with it.
We strongly recommend that you read on and explore the Reference section, which
contains a closer look at all of the exciting features of the GPS II. The first two sections of
this manual have only explored a small part of what this unit can do for you. The next
section will describe GARMIN’s state-of-the-art operating system, which is second to
none in the world of GPS receivers. In fact, because there are so many things this unit
can do for you, you won’t be using it to its full capacity unless you read on. As you delve
further into the GPS II and become more familiar with its many features, you’ll find that
it’s one navigation tool that you’ll grow into— for years to come.
To turn your GPS II off:
1. Press and hold the red power key (Fig. 19).GETTING-STARTED TOUR
19
Fig. 19GPS II  7/23/98 4:04 PM  Page 19 
						

							Satellite Status Page
The GPS II’s satellite status page provides a visual reference of satellite acquisi-
tion and position. As the receiver locks onto satellites, a signal strength bar will
appear for each satellite in view, with the appropriate satellite number (1-32) under-
neath each bar. The progress of satellite acquisition is shown in three stages:
•No signal strength bars— the GPS II is looking for the satellites indicated.
•Hollow signal strength bars— the GPS II has found the satellite(s) and is
collecting data (Fig. 20a).
•Solid signal strength bars— the GPS II has collected the necessary data and
the satellite(s) is ready for use (Fig. 21b).
Each satellite has a 30-second data transmission that must be collected (hollow
bar status) before that satellite may be used for navigation (solid bar status). Once a
fix has been calculated, the GPS II will then update your position, track, and speed
by selecting and using the best satellites in view. You can also access the GPS II’s con-
trast feature from this page (see pg 73).
To adjust the screen contrast:
1. Press the rocker keypad, adjust the level of contrast (Fig. 20b), and press ENTER. Fig. 20a
Fig. 20bREFERENCE
20GPS II  7/23/98 4:04 PM  Page 20 
						

							21Sky View and Signal Strength Bars
The sky view and signal strength bars give you an indication of what satellites
are visible to the receiver, whether or not they are being used to calculate a position
fix, and the signal quality. The satellite sky view shows a bird’s-eye view of the posi-
tion of each available satellite relative to the unit’s last known position. The outer cir-
cle represents the horizon (north up); the inner circle 45º above the horizon; and the
center point directly overhead. You can use the sky view to help determine if any
satellites are being blocked, and whether you have a current position fix (indicated
by a ‘2D NAV’ or ‘3D NAV’ (Fig. 21b) in the status field.
When the receiver is looking for a particular satellite, the corresponding signal
strength bar will be blank and the sky view indicator will be highlighted. Once the
receiver has found the satellite, a hollow signal strength bar will appear, indicating
that the satellite has been found and the receiver is collecting data from it (Fig. 21a).
The satellite number in the sky view will no longer appear highlighted. As soon as
the GPS II has collected the necessary data to use the satellite for positioning, the
hollow bar will become solid.
Fig. 21bFig. 21aREFERENCEGPS II  7/23/98 4:04 PM  Page 21 
						

							Receiver Status and EPE
Receiver status is indicated at the top left of the page, with the current horizontal
accuracy (estimated position error, in feet or meters) at the top right. The status will
be shown as one of the following conditions:
Searching—the GPS II is looking for any available satellites in view (Fig. 22a).
AutoLocate—the GPS II is initializing and collecting new almanac data. This
process can take 7.5 to 30 minutes, depending on satellites currently in view.
Acquiring—the receiver is collecting data from available satellites, but has not
collected enough data to calculate a 2D fix.
2D Navigation—at least three satellites with good geometry have been locked
onto and a 2-dimensional position fix (latitude and longitude) is being calculat-
ed. ‘2D Diff’ will appear when you are receiving DGPS corrections in 2D mode.
3D Navigation—at least four satellites with good geometry have been locked
onto, and your position is now being calculated in latitude, longitude and alti-
tude. ‘3D Diff’ will appear when you are receiving DGPS corrections in 3D mode.
Poor GPSCoverage—the receiver i s n ’t tracking enough satellites fora 2D or
3D fix due to bad satellite geometry (Fig. 22b). Fig. 22a
Fig. 22bREFERENCE
22GPS II  7/23/98 4:04 PM  Page 22 
						

							Not Usable—the receiver is unusable, possibly due to incorrect initialization or
abnormal satellite conditions. Turn the unit off and back on to reset, and reini-
tialize the receiver if necessary.
Simulator—the receiver is in simulator mode (Fig. 23a).
EZinit Option Prompt
The satellite status page also provides access to the EZinit prompt whenever a
position fix has not been calculated (Fig. 23b) The unit must be in searching,
AutoLocate, acquiring, simulator, or poor coverage mode. This allows you to reini-
tialize the unit (see page 7), and is useful if you have traveled over 500 miles with
the receiver off and must initialize your new position. (The EZinit prompt will auto-
matically appear if the receiver needs to be initialized. The prompt may also appear
during normal use if the antenna is shaded or the unit is indoors.)Fig. 23a
Fig. 23bREFERENCE
23GPS II  7/23/98 4:04 PM  Page 23 
						

							Battery Level Indicator
The satellite status page also features a battery level indicator, located to the left of the
sky view, which displays the strength of the unit’s batteries (Fig. 24).
The battery level indicator is calibrated for alkaline batteries. Ni-Cad and lithium
batteries will inaccurately display the battery level at one-half its proper level
due to voltage differences. No other receiver functions are affected by using Ni-
Cad or lithium batteries.
The GPS II features an internal lithium battery that will maintain the unit’s memory
for up to 10 years, regardless of whether the four AA batteries are installed.REFERENCE
24
Fig. 24#!GPS II  7/23/98 4:04 PM  Page 24