Cal. No. F990
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Information on satellite signal reception
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
Nearby objects which emit magnetism or noise
- High-voltage electric cables, railway lines /overhead cables, airports, and transmission facilities.
- Mobile telephones in the process of calling/transmitting
- Electrical appliances and OA equipment
- Mobile telephone base stations