| 摘要 |
The present invention concerns a system for high frequency signal transmission in power line networks and also concerns signal hubs and repeaters to be used in such systems. The primary aim of the invention is to provide a communication system of a general type wherein the isolation between high frequency input and output signals is maintained. The hubs and repeaters are designed to be easily installed in the network. Radio and wireless links at subscriber nodes are also parts of the system.
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