A global positioning system receiver, commonly abbreviated as a GPS, displays information about its position by interpreting radio signals sent from satellites in orbit. While the GPS network was originally intended for military use, it has gained widespread popularity in the civilian sector and is used by travellers all over the world. One GPS device designed for the civilian market is the Magellan 315, which was released in 1999.
- Skill level:
- Moderately Easy
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Hold down the power button, marked "Pwr," to turn on the unit. When the Magellan logo is displayed on the screen, press "Enter." If this button is not pressed within ten seconds, the GPS will turn back off to prevent accidental battery drain.
Initialise the Magellan 315 the first time it is turned on by following the on-screen prompts for information. The device will request details such as the desired language, time zone, and region. For each prompt, use the up, down, left, and right arrow keys to scroll through the available options. Press "Enter" to save each selection.
View general information about the Magellan 315 on the "Status" screen, which will appear automatically once the initial set-up is complete. Move the unit to a clear outdoor area and wait until it has acquired sufficient satellite signal. Keep the GPS as still as possible until it locks onto the signal and switches automatically to the "Position" screen.
Determine the exact position of the Magellan 315 by reading the latitude and longitude numbers listed at the top of the "Position" screen. If the GPS is moving, details such as the course bearing and speed will also be displayed. Note that this unit does not have an actual built-in compass and will only provide GPS-based bearing information while it is moving in a constant direction.
Save a waypoint, or marker, into the Magellan 315 by pressing the "Mark" button twice. The GPS will store the current position as a random unique name. To load a save waypoint and move toward it, press the "Goto" button, select it from the list, and press "Enter." Press "Nav" to view a visual representation of the waypoint's position.
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