Just want to thank you for the design software. I recently used it to design a four element channel 6 yagi for an installation 35 miles from Philadelphia. Hilly two edge in the woods, 200 feet of coax on a 40' tower. I measured a 0 dbmv less than 10' off ground (no amp)and a +30 on the tower at the end of the 200' coax run with an RCA pre-amp. Worked great!