I have a friend that is putting up a 160 vertical consisting of 100 ft
of Rohn 55G and a 2" length of aluminum pipe to be shunt loaded on 160
meters. He is looking for the K factor for the 18" diameter of the
tower and then the K factor of the 2" needed to resonate the tower as
a quarter wave vertical antenna. So far his calculations have come up
with .86 as for the 100 ft. Section of tower. His estimate for the
2" is approx. 17 ft. He is now looking for the shunt point and method
of connection. He wants to know if there is an internet site with
references to this type of antenna system?