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Radio communication system having regular channels and protection channel selectively used for high-priority signal and low-priority signal
Radio communication system having regular channels and protection channel selectively used for high-priority signal and low-priority signal
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机译：具有选择性地用于高优先级信号和低优先级信号的规则信道和保护信道的无线电通信系统
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摘要
A microwave digital communication system has plural regular channels and at least one protection channel, and the regular channels and the protection channel respectively propagate high-priority signals and a low-priority signal between ground stations under non-faulty conditions; when a trouble deteriorates one of the regular channels, switching units on the transmitter side assign the high-priority signal and the low-priority signal to the protection channel and the faulty regular channel, respectively, so as to exchange the high-priority signal and the low-priority signal between the faulty regular channel and the protection channel, and switching units on the receiver side allow the high-priority signal and the low-priority signal to return to the regular channel and the protection channel so that the microwave digital communication system continuously transfers the low-priority signal through the faulty regular channel.
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