[TowerTalk] 160/80m Inverted L dualband design

[hasan schiers]

Pat, what are the details of your trap? I'm using an inverted L for 80m, 
about 5' away from my tower and have been VERY happy with its 
performance. I've often thought of putting a trap in it and extending 
the sloping section to get 160 m on it, but have not seen either a 
commercial trap or design for a trap that I was  happy with. What 
resonant freq did you choose for the trap, and how is it constructed? 
Thanks, 73

...hasan, N0AN

Pat Rundall wrote:
> I am contemplating the construction of a dual band inverted L for 160 and 80
> meters. It would be a quarter wave design with a sloping top and mounted off
> of the side of my self supporting tower.
>
> I have modeled it in MMANA and am looking for advice on the design,
> improvements, matching unit/trap ideas, alternatives, etc.
>
> You can see what the design looks like, SWR/gain plots, design
> considerations, etc. here:
> http://www.n0hr.com/Dual_band_Inv_L.htm
>
> If you have input, I would certainly love to hear it.
>
> 73
> Pat N0HR
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