Topband: Inverted "L" Radiation Resistance vs vertical height

Tom Rauch w8ji at
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.

Hi Joe,

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.

73 Tom 

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