Internet Technology Co., Ltd. Shanxi Chi Mei told: relay station is to signal a frequency band received directly through its own transmitter forwarded out the other frequencies. These two sets of signals of different frequencies affect each other, civilian walkie-talkie, or to allow groups of users to communicate on different frequencies to contact. Send and receive at the same time it has the characteristics of interfering with the work but the work of a full-duplex. Internet Technology Co., Ltd. Shanxi Chi Mei told intercom history: Kermode with a coil with a core receiving the "empty" signal when attracting a switch, civilian radio offer, after receiving the "bar" signal when the release switch and the circuit. Thus, the first walkie-talkie reader noisy. By a series of relay control switch "on" and "off" by the print "of" the number of decisions on the envelope. In this way, radio symbols directly on the letter were sorting. _ Shanxi civilian walkie-talkie civilian walkie-talkie Chimera Internet Technology _ which brand is good provided by the Internet Technology Co., Ltd. Shanxi CMO. Shanxi CMO civilian walkie-talkie _ _ civilian radio Internet technology which makes good Shanxi Chimera Internet Technology Co. (www.sxqmhl.com) (www.sxqmhl.com) this year introduced a new upgrade, the above picture is for reference only, please dial this page or on the telephone picture to obtain the latest information, contact: Li Chi-ming.