That is, the transmission frequency and receiving frequency of the intercom will be swapped, and the setting of the setting is also interchangeable. When there is a relay, one party does not use relay or relay suddenly does not work, but is a common way to use the two receiving frequencies of relay......
Read MoreThe strength of the noise in the receiving signal is corresponding to the strength of the signal. The stronger the signal, the weaker the noise. The maximum noise and minimum noise are divided into several files, and each gear is called first. The divided files are called lithosis. Users can choose ......
Read MoreThe strength of the noise in the receiving signal is corresponding to the strength of the signal. The stronger the signal, the weaker the noise. The maximum noise and minimum noise are divided into several files, and each gear is called first. The divided files are called lithosis. Users can choose ......
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