Hello to all,

We are in the process of designing the "Five sloping dipoles suspended from one support" for the ARRL's Antenna Book.

The text says that "The 36-foot length of feed line serves to increase the length of the element about 5%".

But suppose we want to increase the length by other factors (percentage), how to determine the (new) correct length?

A formula and/or a theoretical explanation would be much welcome..!

73 de Pierre VE2PID