MISSION2 User Manual
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4.2 Sport GPS
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Outdoor sports: GPS positioning shall be completed before
running, cycling, swimming, and ski/boarding, performing
sports without GPS positioning will affect the accuracy of
logging and calories.
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When the GPS signal is interrupted, the LOST GPS alarm will
Appear until the signal is re-received.
Factors that affect GPS positioning:
GPS signals are positioned through electromagnetic waves.
When obstacles are encountered, signal reception will be
affected, so positioning cannot be guaranteed.
The following are common disturbances:
* High-rise buildings: With cement walls of high-rise buildings
and alleys on both sides, the signal received will be relatively
less.
* Forest roads: Dense leaves and branches act as concrete
walls, which will reduce the penetration of GPS
electromagnetic waves.
* Adjacent to high-voltage towers: As electromagnetic waves of
different frequencies will be generated during the
transmission and distribution of high-voltage towers, which
will interfere with the GPS signal reception.
* Base station electromagnetic waves
* Cloudy days & air pollution: thick clouds, water vapor in the
clouds and metal components in air pollution may affect the
GPS signal reception.
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