Poor reception areas
It may be difficult to receive the satellite signal under certain environmental
conditions or in certain areas.
Areas with obstructions above the watch
• Indoors or underground
• Areas surrounded by tall buildings or trees
• When the weather is cloudy or rainy, or
during a thunderstorm
etc.
Information on satellite signal reception
Nearby objects which emit magnetism or
electrical interference
• High-voltage electric cables, railway lines /
overhead cables, airports, and transmission
facilities.
• Electrical appliances and OA equipment
• Mobile telephones in the process of calling/
transmitting
• Mobile telephone base stations
etc.
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