Telecom Australia is installing a novel rural radio-telephone network, entitled the Digital Radio Concentrator System, in areas of very low subscriber density. This is a cellular system, operating at 500 MHz or 1500 MHz, and is subject to co-channel interference. A method is described for estimating the performance degradation due to this interference and for estimating the sensitivity of the system to particular parameters such as cell spacing, antenna gain etc. A propagation experiment at 500 MHz, mounted to provide statistics and to test the analytical method, is described and some results are presented. This experiment has confirmed the validity of the analytical method and of the propagation models used.
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