Notes
•The positions of GPS satellites vary. Depending on the location and time you use a GPS receiver, it may take longer for tracking or the receiver may not track the location at all.
•“GPS” is the system tracking location by receiving radio signals from GPS satellites. Avoid using the unit in the places where radio signals are blocked or reflected, such as a shadowy place surrounded by buildings or trees, etc. Use the unit in open sky environments.
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•You may not record a GPS log at the locations or in the situations where the radio signals from the GPS satellites do not reach to the unit as follows.
–In tunnels, indoors or under shades of buildings.
–Between tall buildings or at narrow streets surrounded by buildings.
–At underground locations, surrounded by dense trees, under an elevated bridge or at the locations where magnetic fields are generated such as near high voltage cables.
–Near the devices that generate the radio signals of the same frequency band as the unit: near the 1.5 GHz band mobile telephones, etc.
•The unit may not track when you are moving at the speed of about 500 km/hour (300 miles/hour) or faster.
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