[Elecraft] Random wires

[David Gilbert]

Feedpoint impedance and radiation resistance are not the same thing.  
Using a folded element affects the former, but not the latter.  Check 
out W8JI's website.

73,
Dave   AB7E



On 10/1/2013 12:10 PM, Barry LaZar wrote:
>
>     As I read your post, I infer that at the moment you are wanting to 
> add 160 meters to your capability. An antenna that I have used and 
> liked is the Twin Lead Marconi. It's a simple, cheap, and effective 
> antenna. I first saw it written up by Bill Orr years ago. The premise 
> of the design is that a quarter wave antenna driven against ground may 
> not be the most efficient antenna due to low radiation resistance. 
> Therefore, raise the radiation resistance by using the theory of a 
> folded dipole. The folded element raises the radiation resistance by a 
> factor of 4 for 2 elements as the impedance changes as the square of 
> the number of elements. You will still need radials, but your ground 
> losses will decrease.