天气预报15天查询> 其他> 请问下下雨天手机信号也会变差吗

请问下下雨天手机信号也会变差吗

更新时间: 2020-10-14 00:00:00     

对于电磁波而言雨水会使其衰减,称作"雨衰",但是不同频率的电磁波对于雨水的穿透率不同。手机信号用的是特高频无线电,属于电磁波,而且是在空气中直接传输,不用离子层反射。因为下雨时空气湿度大,所以电磁波频率越大越容易被吸收,致使信号强度减弱。所以下雨天手机信号会变差。

关键词: 请问 下雨天 手机 信号

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