Step 1 : 在Commands欄位輸入run length-freq-ri Step 2: 搜尋trace net name, 即可顯示線徑長度/阻抗/電流/頻率 銅厚以1oz/ft2計算 亦也可使用EEWEB提供Trace Resistance Tool計算 https://www.eeweb.com/tools/trace-resistance-internal-external Ref: https://www.autodesk.com/products/eagle/blog/length-match-high-speed-nets/