Hi, Arpad; Can you please clarify that the ideal E-element (VCVS) in the analog model you showed at last ATM has R2=0 for Tx and R1=infinity and R2=0 for Rx (R1 & R2 are defined in the figure below)? [cid:image001.png@01CBBD83.9039BEA0] Thanks, Fangyi