I am an electrical engineer and a retired professional engineer. The main focus of my career has been instrumentation targeted at the communications industry. I have designed analog and digital hardware and firmware. I am a retired professional engineer. I spent a year in Antarctica tracking satellites. I spent three years designing electronics for a major astronomical observatory. I am a long-time user of LT Spice. I wrote a three-part article on using SPICE to simulate lossy transmission lines with realistic frequency dependent parameters for EE-Times back in 2010. Email me if you would like to receive the bonus material. I have a book in progress about transmission lines which includes SPICE simulation. Maybe it will be available in 2020.