Ward Harriman, AE6TY, has just released version 18.3 of his SimSmith tool which can integrate use of the NanoVNA with use of SimSmith. For details see https://groups.io/g/SimSmith/message/2089 which has an attached pdf file with basic instructions. To download the latest version of SimSmith see http://www.ae6ty.com/Smith_Charts.html Dan, AC6LA