Cal. No. A414
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About signal reception
Poor reception areas
It may be difficult to receive the time signal properly under certain environmental conditions or in areas susceptible to radio noise.
 | Extremely hot or cold locations |
 | Inside vehicles |
 | Electrical appliances and OA equipment |
 | Near high-voltage electric cables, railway overhead cables, airports (transmission facilities) |
 | Inside reinforced concrete buildings, between tall buildings, mountains, or underground |
 | Near mobile phones or smartphones that are in use |