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It is usually difficult for fault locating of the aerospace wireless transceiver system, due to it involves so many products and the antenna are not convenient for state monitoring. With reasonable telemetry parameters setted in the design of aerospace wireless transceiver, the problem of fault location of wireless transceiver system can be solved by distinguishing the interface between the wireless transceiver and other devices. Based on case studies of difficulty in fault locating caused by unreasonable telemetry parameter setting in previous flight experiments, this paper puts forward some suggestions on setting the main telemetry parameters and positions of arrow-borne wireless transceiver from the perspective of facilitating fault location. Combined with a specific case, this paper analyzed the bad influence of unreasonable telemetry parameter setting on fault location and the specific method of improving telemetry parameter design for future design reference .