Columbus V 900, Руководство пользователя, Страница: 12 / 40

12
About GPS
The Global Positioning System (GPS) is a satellite-based navigation system made
up of a network of 24 satellites placed into orbit by the U.S. Department of
Defense. GPS was originally intended for military applications, but in the 1980s,
the government made the system available for civilian use. GPS works in any
weather conditions, anywhere in the world, 24 hours a day. There are no
subscription fees or setup charges to use GPS.
The GPS is operated by the United States government, which is solely
responsible for accuracy and maintenance of the system. The accuracy of
location data can be affected by adjustments to GPS satellites made by the U.S.
government and are subject to change with civil GPS policy and the Federal
Radio navigation Plan. Accuracy can also be affected by poor satellite geometry.
The receiver is a positioning device that receives RF signal from GPS
satellites, which are 20,000km above the earth. To receive the best signals,
use the receiver in open space wherever possible.
The positions of GPS satellites are continuously changing. Depending on
when and where the device is used, it may take long to acquire the
position, or positioning may be temporarily unavailable.
The device may fail to position and track when you are moving at a speed
of more than 800km/h.
Notes:
(1)
(2)
(3)
English
About GPS