Welcome to copilot, About gps technology, How copilot uses gps – ALK Technologies CoPilot Live Smartphone User Manual

Page 3: Gps accuracy, Safety warning

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Welcome to CoPilot!

Imagine…

a CoPilot at your side that

always knows where you are, where you're
going, and exactly how to get there. Now
confidently drive anywhere while CoPilot, using
the latest, most accurate GPS technology,
shows you all the correct turns to take to reach
your destination.

Better yet, if you should miss a turn, encounter
heavy traffic, or simply decide to go a different
way, CoPilot's dynamic directions automatically
provide you with an updated route to your
destination. Keep your eyes on the road and
your hands on the wheel as CoPilot's unique
voice technology speaks the directions to you.
In addition, detailed street maps show your
passengers the current street location and the
route to your destination.

About GPS Technology

The Global Positioning System (GPS), developed by the U.S. Department
of Defense, is a constellation of 24 satellites that orbit the Earth twice daily.
Each satellite contains an atomic clock that is accurate to the nanosecond,
and constantly emitting radio waves toward Earth. GPS sensors (hardware
devices for receiving data) can receive these signals from the satellites, and
using their own internal clock can calculate the amount of time it has taken
for the signal to be received. GPS relies on the fact that radio waves travel
at the speed of light to calculate distances, and the exact location of the
sensor is figured by combining the data received from four satellites.

Using the data from these four satellites, GPS is able to give you the
latitude, longitude and elevation of your present location, and also your road
speed and direction of travel on a route. Given the right conditions, a GPS
sensor can identify your geographic position anywhere in the world within a
few meters.

How CoPilot Uses GPS

CoPilot uses the GPS positional data that it receives from your hardware
unit to display your current position on a map as you drive. This is called
"tracking". CoPilot also uses the GPS data it receives to guide you along a

planned route if you enter a destination on your Smartphone. CoPilot guides
you with audible prompts as well as on-screen directions as you drive.

GPS Accuracy

The GPS signal CoPilot receives from the constellation of satellites has a
rated accuracy of within 5 - 10 meters. This means that 95% of the time
the reported location is within 15 - 30 feet of your exact position. If CoPilot
initially places you on the wrong road (this happens only rarely), keep driving
and CoPilot will automatically correct itself and find your proper position.

Occasionally, CoPilot's GPS tracking will be less accurate or fail to work at all
because your GPS receiver is unable to receive satellite signals. Heavy
foliage, tall buildings, or any other structures obstructing communications will
interfere with CoPilot's ability to track your location. Like your car radio, GPS
tracking can also be affected by weather conditions if severe. CoPilot will
continue tracking as soon as adequate signals are available. Despite these
limitations, you can expect CoPilot to provide you with useable and accurate
information most of the time. CoPilot will alert you if accurate information is
unavailable.

CoPilot’s personal, portable GPS navigation system gives you the freedom
to explore and the confidence that you'll never get lost again!

Safety Warning

Always keep your hands on the steering wheel and eyes on the road
when driving!

Do not use this product in any way that interferes with safe and attentive
operation of a vehicle. When used in a vehicle, do not place the GPS
receiver, antenna, power supply, or your computer where it may strike the
driver or passengers if the vehicle turns sharply or stops abruptly. This
product is designed, manufactured, and intended as an aid to planning and
navigating routes. The accuracy of the map data, driving directions, and
GPS tracking system is insufficient for this product to be used for autoated
navigation or in any situation in which the failure of the product could lead
directly to death, personal injury, or physical or environmental damage. The
driver must remain alert at all times to actual road conditions and obey all
posted signs and traffic regulations.

ALK Technologies assumes no responsibility for any damage or injury
resulting from the use of this product.

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