Positioning
The Global Positioning System (GPS) is a worldwide
radio navigation system that includes 24 satellites
and their ground stations that monitor the
operation of the satellites. Your device has an
internal GPS receiver.
A GPS terminal receives low-power radio signals
from the satellites and measures the travel time of
the signals. From the travel time, the GPS receiver
can calculate its location to the accuracy of metres.
The Global Positioning System (GPS) is operated by
the government of the United States, which is solely
responsible for its accuracy and maintenance. The
accuracy of location data can be affected by
adjustments to GPS satellites made by the United
States government and is subject to change with
the United States Department of Defense civil GPS
policy and the Federal Radionavigation Plan.
Accuracy can also be affected by poor satellite
geometry. Availability and quality of GPS signals
may be affected by your location, buildings, natural
obstacles, and weather conditions. The GPS receiver
should only be used outdoors to allow reception of
GPS signals.
Any GPS should not be used for precise location
measurement, and you should never rely solely on
location data from the GPS receiver and cellular
radio networks for positioning or navigation.
The GPS receiver is located in the top of the device.
When using the receiver, make sure that you do not
cover the antenna with your hand.
Establishing a GPS
connection may
take from a couple
of seconds to
several minutes.
Establishing a GPS
connection in a
vehicle may take
longer.
The GPS receiver
draws its power from the device battery. Using the
GPS receiver may drain the battery faster.
Your device also supports Assisted GPS (A-GPS)
(network service).
A-GPS is used to retrieve assistance data over a
packet data connection, which assists in calculating
the coordinates of your current location when your
device is receiving signals from satellites.
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