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目前30MHz无线调频单工对讲机的社会拥有量很大。它价格低廉,通话距离适中,话音清晰,受到社会各界及业余无线电受好者的欢迎。但该机采用单工按键收发转换,效率低,使用也不方便,即发话时要按下转换开关,发话完毕又要及时松手,以便接收,长时间使用时会感到手很疲惫。能不能象打电话一样,无需用手操作收发开关就能通话呢?这里介绍一种改装方法。 改装原理
The current 30MHz wireless FM simplex community has a lot of social. It is cheap, the call distance is moderate, voice clarity, by the community and amateur radio by those who welcome. However, the machine uses simplex keys to send and receive conversion, low efficiency, use is not convenient, that is, press the switch when the speech is finished, but also in a timely manner to let go after the release, in order to receive long-term use will feel very tired hands. Can call, like the same, without having to operate the transceiver switch will be able to talk about it? Here is a modification method. Modified principle