Gps technology, Gps accuracy, Future of gps technology – Directed Electronics 210A User Manual

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Common errors such as entering an incorrect expiration date or incorrectly
entering a digit in a credit card number can result in an authorization failure. If
all of your billing information looks correct, please contact your financial institu-
tion for resolution.

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

AUTOMATE

210A services leverage stable, reliable technology platforms with

the ability to implement future technological advancements. AUTOMATE

210A

is developed to support emerging wireless platforms and devices to ensure
future value and avoid obsolescence.

The AUTOMATE

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-
tion information. Underground parking garages, concrete enclosures and urban