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发射功率设置为10db 但是稳定通信距离可能只有20米左右，与需要实现的距离相去甚远，观察了接收端的RSSI，发现即便在很近的情况下，直接读数也只有90多，换算成接收灵敏度dbm应该只有-30左右，稍微远离一点dbm就下降得很厉害就只有-50，这种情况该怎么解决呢
这可能是硬件设计及PCB布局不合理，按这里的步骤提交硬件审查：https://www.ti.com/tool/SIMPLELINK-SUB1GHZ-DESIGN-REVIEWS
