Runtastic GPS Watch with Heart Rate Measurement, Руководство по эксплуатации

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This symbol indicates that the GPS has acquired full 3-D
positioning, including Altitude data.
Accurate and uninterrupted reception of the satellite signal can only
be guaranteed under calm weather conditions (clear sky) and an
adequate reception area – open area with clear view to the sky.
Satellite signals react sensitively to external influences. GPS
reception may be weak or unavailable in bad weather (e.g. heavy
snowfall), as well as when clothes or other objects cover the GPS
watch, when you are surrounded by high buildings, or in narrow
valleys. This will impede the GPS watch's ability to obtain a stead
signal thereby significantly affecting its efficiency and accuracy of
speed, distance and other measurements.
Inside buildings, GPS reception may be available near windows or
in areas with a clear view of the sky. Therefore it is recommended
that you go outdoors or near a window to obtain the GPS signal. It
is near impossible to get GPS reception in interior spaces and
basements.
If the GPS signal from the satellites is lost and no position can be
determined, "GPS Lost!" appears on the screen, until a button is
pressed.
Stopping the GPS
The GPS feature will shorten battery life. At times, you may want to
turn off the GPS (e.g., when working out indoors).
To stop the GPS:
Option 1:
1. While viewing the GPS Workout or GPS Navigation mode.