在人工控制应用中，发信机通过将发射机选择信号发送到适当的信道比选模块上来决定使用哪一台发射机进行应答。
In manually controlled applications, the dispatcher decides which transmitter site to use for reply by issuing a transmit Select signal to the proper site Voter Module.
这意味着一台CW发信机需要输出16倍于一台PSK31发信机的功率来提高接收端的信噪比。
That means a CW transmitter has to output 16 times more power than a PSK31 transmitter to gain the same signal to noise ratio on the receiving side.
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