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对讲机


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大连对讲机的发射和接收功能解析

发布日期:2019-08-22 00:00 来源:http://pcckw.com 点击:

大连对讲机具有发射和接收功能。通话距离主要取决于其的发射功率,国家工信部允许150MHz、400MHz这两个高低频段用于民用。一般在城市的通讯距离不会超过5公里。专业机在平坦开阔无障碍地通话距离可达3-5公里,但由于无线电波的传输会受障碍物(如建筑、树木)的影响。对讲机是一种双向通讯工具,在不需要任何网络支持的情况下,就可以通话,没有话费产生,适用于相对固定且频繁通话的场合。


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大连对讲机


相关标签:大连对讲机价格,大连对讲机厂家,大连对讲机生产

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