Garmin Pilot 3 Manual

The GPS III PilotÕs Highway Page provides a graphic highway display that shows
your movement relative to the desired course. The line down the middle of the high-
way represents your desired course. As you navigate toward your destination, the high-
way will actually move, indicating the direction youÕre off course. To stay on course,
simply steer toward the center of the highway. As you approach the waypoint, the
highway will end at the final destination. When the waypoint marker is at the bottom
center...

Imagine youÕve just departed. Your home airport is thirty minutes behind you.
You fly over a nice fishing lake or golf course youÕve never noticed before and decide
you would like to return to this place in your car. How would you mark this spot?
The GPS III PilotÕs ENTER/MARK key provides a simple way to mark your present
position and save it as a waypoint.
To mark your present position:
1. Press and hold the ENTER/MARK key. The mark position page will appear, with a
default three-digit name for the new...

Suppose another thirty minutes into your flight you experience an emergency and
need to find a place to land. Or, you just want to stop for a break at a nearby airport
or top off the tanks. A list of the nine nearest airports within 200 miles of your present
position is just a keystroke away! Instantly, you can select an airport from the list and
designate it as your destination waypoint. Or, you can review all the available Jeppesen
data for that particular airport. LetÕs take a look at the closest...

As you continue along your route, you may pass in close proximity to, or enter,
an airspace. Whenever you are within 2 nm, projected to enter, or inside an airspace,
the GPS III Pilot will notify you with a message and supply detailed information
about each airspace you are being alerted to. Look closely at the map display. If you
see an airspace ahead of your present course, you may be alerted with a message as
you approach it.
NOTE: The airspace alert occurs when your current altitude places you...

The GPS III PilotÕs Satellite Status Page provides a visual reference of various
receiver functions, including current satellite coverage, receiver status, battery level
and position accuracy. As the receiver locks onto satellites, a signal strength bar will
appear for each satellite in view, with the appropriate satellite number (01-32) under-
neath each bar. The progress of satellite acquisition is shown in three stages:
¥ No signal strength barsÑ the receiver is looking for the satellites indicated.
¥...

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 Ô2D NavigationÕ or Ô3D
NavigationÕ in the status field). You can also set the sky view to a ÔTrack UpÕ config-
uration, causing the top of the sky view to align along your current track heading.
When the receiver is looking for a particular satellite, the corresponding signal
strength bar will be blank and the sky view indicator will not be highlighted. Once
the...

Poor GPS CoverageÑ the receiver isnÕt tracking enough satellites for a 2D or 3D
fix due to bad satellite geometry.
Not UsableÑ the receiver is unusable, possibly due to incorrect initialization or
abnormal satellite conditions. Turn the unit off and back on to reset, and reinitial-
ize the receiver if necessary.
Simulating NavÑ the receiver is in simulator mode.
ÔNeed to Select InitializationÕ Prompt
If no satellites are received for several minutes (or an insufficient number of satel-
lites are received...

EPE and DOP
The Satellite Status Page also indicates the accuracy of the position fix, using
Estimated Position Error (EPE) and Dilution of Precision (DOP) figures. DOP mea-
sures satellite geometry quality (i.e., number of satellites received and where they are
relative to each other) on a scale from one to ten. The lowest numbers are the best
accuracy and the highest numbers are the worst. EPE uses DOP and other factors to
calculate a horizontal position error, in feet or meters.
Screen Backlighting...

The following Satellite Status Page options are available:
Start SimulatorÑ allows you to activate the GPS III PilotÕs built-in simulator mode. 
If ÔStart SimulatorÕ is selected, ÔStop SimulatorÕ will appear as an option instead.
To activate (deactivate) simulator mode:
1. Highlight ÔStart SimulatorÕ (or ÔStop SimulatorÕ) and press ENTER.
2. Press ENTER again to confirm.
Track UpÑ changes the sky view display from ÔNorth UpÕ orientation to align to 
current direction of travel (track). If ÔTrack UpÕ is...

The Position Page shows you
where you are, what direction
youÕre heading and how fast
youÕre going.
With 2D coverage, you will
need to enter your approxi-
mate altitude. Without an
approximate altitude, your
position error can be substan-
tial.
32
REFERENCE
The second page in the GPS III PilotÕs 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 destina-
tion...