推荐回答(4个)
很高兴回答你的问题:
手机信号屏蔽仪 是通过发送同频段的电磁波来干扰原有的无线电通信! 所以屏蔽仪有它的干扰频段 一般好一点的手机信号屏蔽仪 会有好几根天线 分别干扰 联通 移动 电信...... 这样的话就有点对症下药的意思 你用900Mhz的干扰器 去干扰 2.4Ghz 的通信 效果肯定不好 甚至 不会影响 想彻底屏蔽信号是比较难得 因为 测试场地总有信号是不可以干扰的 比方说 GPS的定位信号 广播电视的信号 飞机塔台联络信号..... 要想解决您的问题就要换种思维 不要去干扰 而是去截获 网上有卖那种侦频计 当区域有强的无线电信号发射出去会被它侦测到 这样就会暴露无线电发射机! 希望我的回答可以帮助你 谢谢 我是中国无线电协会会员 BG6CQB
现在的手机信号屏蔽器只能屏蔽那几个频段的信号,只要发射频率不在屏蔽器所能屏蔽得范围内,是不能完全屏蔽掉的!给分吧!
手机信号屏蔽器只能屏蔽某一个频段的信号
广播跟手机的频段相差很大
屏蔽不了
现在市面上的手机信号屏蔽器都是全频段的,它能把所有移动、联通和电信三家运营商下面的2G 3G 4G信号和2.4G WIFI信号和蓝牙信号全部屏蔽掉,它的原理是通过自身发出的频率来干扰手机接收基站和无线路由器发出的频率,从而达到屏蔽他们的目的。
你说的移动3G没有屏蔽掉,要不就是当时的屏蔽器可能还不带3G的频段,要不就是使用场所中正好有移动3G的基站,屏蔽器的功率小没有压制住而造成的。
至于无线摄像头会不会被屏蔽,就得看它的频率了,据我了解,市面上的针孔摄像头的频率有1.2G、2.4G和5.8G。如果是2.4G的话那肯定会被屏蔽,如果是1.2G和5.8G就不会被屏蔽。
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