Reference – Garmin GPS III Pilot User Manual
Page 40
The Position Page shows you
where you are, what direction
you’re heading and how fast
you’re 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 Pilot’s main page sequence is the Position Page.
This page shows you where you are, what direction you’re heading, and how fast
you’re going, and it’s most useful when you are traveling without an active destina-
tion waypoint. The graphic heading display at the top of the page indicates the direc-
tion you’re heading, or track, only while you’re moving.
Directly below this display are the speed, average speed, trip timer, trip odome-
ter and sunrise/sunset fields (default). The sunrise/sunset times indicated are for
your present position. These times, and the current time display in the lower right-
hand corner, can be displayed in local time or UTC (zulu) time. The lower left-hand
corner of the page shows your current latitude and longitude in degrees and minutes
(default). Units of measure and the position readout are selectable from the Main
Menu, as outlined on page 77. Average speed, max speed, trip odometer and timers
can each be reset from the Main Menu, as described on page 75.
2D Altitude Entry
When the GPS III Pilot 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 accura-
cy. In cases where the GPS III Pilot has only 2D coverage, entering your approximate
altitude will enable the receiver to more accurately determine a position fix.
To enter an altitude:
1. Press PAGE (or QUIT) until the Satellite Status Page appears, then press MENU to
view the available options.
2. Highlight ‘Set 2D Altitude’ and press ENTER.
3. Enter your approximate altitude using the rocker keypad, and press ENTER.
Position Page
GPS III Pilot B2 4/1/99 2:02 PM Page 32