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对讲机可以开启省电延长电池寿命

发布日期:2019-09-12 17:17 来源:http://pcckw.com 点击:

大连对讲机,人的话音通过麦克风转换成音频的电信号,音频信号通过放大电路、预加重电路及带通滤波器进入压控振荡器直接进行调制。为保证绝大多数用户通话不受干扰以及合理地利用频率资源,国家无线台管理委员会对频率的使用进行了划分,规定不同的行业使用相应的频率范围。用户在购买对讲机的时候,要向当地的无线电管理委员会申请频点。摩托罗拉系统的数字对讲机有着非常好的去噪功能,通过技术手段能很好的屏蔽背景噪音,而强化语音通话效果。


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大连对讲机


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