考场信号屏蔽器的构造是什么样子的？

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考场信号屏蔽器的构造是什么样子的？

2019-04-12 10946 神州明达-小明

考场信号屏蔽器的构造是什么样子的？

这些年来，只要遇到大型的考试，为了彻底的杜绝考试现场的舞弊现象，安装考场信号屏蔽器已经见怪不怪。不过，很多人只听过这个东西，并没有仔细观察过它的样子。那么，考场信号屏蔽器的构造是什么样子的？一台考场信号屏蔽器首先就是外壳的材料了，目前市面上两种类型。一种使用的是金属外壳，另外一种是塑料外壳。金属外壳的一般是外置的考场信号屏蔽器使用，而塑料外壳则一般是内置的考场信号屏蔽器使用。这两种种类的考场信号屏蔽器内部构造还是有一点区别的。

内置天线的信号屏蔽器，一般将天线安装在内部，里面用各种电子元器件组成。像这样的内置天线信号屏蔽器主要是外观看上去比较美观有点。而外置天线的信号屏蔽器在外壳上有几个用来安装外置天线的接口。这些接口代表的是不同频道的信号屏蔽。一般，外置天线的多少也决定了考场信号屏蔽器的优劣。天线多屏蔽范围也会更广泛一些。同样的里面也是各种电子元件。通过这些电子元件，达到干扰手机信号的目的。虽然有很多厂家都生产考场信号屏蔽器，但是，在这个方面比较权威的公司少之又少。目前比较专业的国内的公司中，北京神州明达就是其中的佼佼者。他们从事这方面的设计与研究多年，有多项科技领先的产品。更符合广大学校的要求。

汽车上如何反窃听？考场信号屏蔽器主要适用于什么场合

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