Magellan GPS Tracker - Manual (Page 13)

Magellan GPS Tracker 3
Getting Started/Initialize
This section shows you how to begin using your GPS Tracker for the first
time. After a brief description of the receiver, it discusses:
• Installing batteries.
• First time use, initializing the receiver.
• Usage.
GPS Tracker Description
The GPS Tracker has a large, high-resolution display, a detachable antenna
for exceptional tracking and stores up to 500 waypoints. Using four AA
batteries, the GPS Tracker will operate continuously for up to 30 hours and
the internal lithium back-up battery will keep the receiver’s memory active
for up to 10 years.
Receiver Accuracy
The satellite constellation that provides the GPS information your receiver
uses is maintained by the Department of Defense (DoD). GPS positioning,
for general use, provides 25 meter RMS accuracy or better. Since the signals
generated by these satellites are publicly accessible, the DoD has introduced
errors into the satellite signals for security reasons. These errors are referred
to as Selective Availability (SA).
At present, your GPS position will be accurate within 100 meters horizon-
tally and 150 meters vertically. Due to the errors introduced by SA, it is
possible to get readings outside of these values at times.
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