Hi all, Does anyone in here ever see or have use this program from UR5FFC, to get the values of the input and output PI network. Image of the program - http://www.qsl.net/ur5ffc/soft/ggrid/ggridpa.png Program exe - http://www.qsl.net/ur5ffc/soft/ggrid/ -- *73 Nuno CT2IRY*