Hi Tom, I wrote that article. Some of it has changed over the years as we learned more about TMCC. The foil under the track is no good. The wire over the track is still the best way to go. Telephone poles are just the right height for this. Adding antenna to a diesel engine works too. I use # 18 solid wire about 6" long or however long your diesel is and hot glue it to the inside roof of the engine. If your layout is really big then you need one of Gunrunner John's boosters. Good luck.