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GPS Technology
GPS Accuracy
GPS is the most widely used global positioning technology. Originally devel-
oped by the US Department of Defense, GPS is used for many different appli-
cations including, offshore ocean navigation, direction finding, exploration and
vehicle locating. Without Selective Availability, GPS is accurate to within a
radius of 6.3 meters of a location (95% of the GPS points fall within this radius).
There are inherent limitations to wireless communications and the Global
Positioning System (GPS).
Future of GPS Technology
AUTOMATED
®
210A services leverage stable, reliable technology platforms
with the ability to implement future technological advancements. AUTOMATED
®
210A is developed to support emerging wireless platforms and devices to
ensure future value and avoid obsolescence.
The AUTOMATED
®
210A uses industry standard cellular wireless communica-
tions networks (cellular) to communicate with vehicles. Therefore, vehicles
must be within cellular coverage to communicate. Cellular networks currently
cover approximately 95% of populated North America.
The GPS transceiver in the onboard device must have a direct line of sight with
three or more of the 24 satellites in the GPS constellation to provide accurate loca-
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