Topband: Inverted "L" Radiation Resistance vs vertical height
w8ji at contesting.com
Thu Sep 14 06:03:53 EDT 2006
> Rrad goes by the square of height for 'short' verticals so
> you would
> see roughly a 40% increase by going to 60'. The
> difference in your
> signal would also depend on your ground loss and this
> would be smaller
> for a poor ground.
The difference in signal would be larger for a poor ground,
less for a good ground. If the ground was perfectand
conductor resistances zero radiation resistance would be
unimportant. If the system is very lossy FS is proportional
to radiation resistance if determined by a standard method.
More information about the Topband