Garmin GPS III Owner's Manual

Also see for GPS III: Declaration of conformity Quick guide Owner's manual Owner's manual

Garmin GPS III Owner's Manual Manual pdf 40 page image

The Position Page shows youwhere you are, what directionyou’re heading and how fastyou’re going.With 2D coverage, you willneed to enter your approxi-mate altitude. Without anapproximate altitude, yourposition error can be substan-tial.32REFERENCE 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 fastyou’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 foryour 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-handcorner 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 MainMenu, as outlined on page 77. Average speed, max speed, trip odometer and timerscan each be reset from the Main Menu, as described on page 75.2D Altitude EntryWhen the GPS III Pilot is acquiring satellites or navigating in the 2D mode, thelast known altitude will be used to compute your position. If the altitude shown isoff 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 approximatealtitude 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 toview 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