Sony GPS-CS3KA - Manuel (Page 36)

36
Additional information
GPS
The GPS (Global Positioning System) is
a system that calculates geographical
location from highly accurate US space
satellites. This system allows you to
pinpoint your exact location on the earth.
x On error
Error caused by the position of
GPS satellites
The GPS unit automatically triangulates
your current location when the GPS unit
receives radio signals from 3 or more
GPS satellites.
The triangulating error allowed by the
GPS satellites is about 10 m (30 feet).
Depending on the environment of the
location you are in, the triangulation
error may be greater. In this case, your
actual location may not match the
location on the map based on the GPS
information.
Error during the triangulation
process
The GPS unit acquires positioning
information every 15 seconds during
triangulation.
There can be a slight time difference
between when the positioning
information is acquired and when images
are taken. The supplied software (GPS
Image Tracker) calculates the position
where such images were taken based on
the path between the two positions from
which it acquires the positioning
information, therefore, the actual
recording location may not match
exactly the location on the map based on
the GPS information.