Maybe that is why some of the early handbooks show the use of 72 ohm twin lead for dipoles. Been that way for years, and hams have yet to complain when using 50 ohm coax..! What is the big deal about using hardline that is 75 ohm instead of RG-XXX, the 50 ohm stuff? Use it, enjoy the lower loss and greater power handling capability. 73 Bill, W�LPQ