To = 13.589x106 5 = 71.33 GT = 28.368 s = 89.7 T = 1.3501X106 Te = 8881 T ... 光節點到頭端的光纖損失定為 12dB ,考 回傳雜訊當為 RF 放大器雜訊、光 量光回傳 ...
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