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Topband: Extended Inverted "L" Antennas

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Subject: Topband: Extended Inverted "L" Antennas
From: "EP Swynar" <>
Date: Fri, 7 Sep 2007 15:34:27 -0400
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Here's a query for you more experienced inverted "L" afficianados...

Would I benefit from (possibly) optimizing the low angle radiation of my 
inverted "L" antenna, if it was to be cut exactly 1/4-wavelength --- as opposed 
to it being 170' long (overall), and tuned by way of a variable capacitor at 
the base...?

I currently have a 3-element tri-angular phased array (135-degree phasing) for 
160-meters: All of the elements are of the classic W1BB design, i.e. 170' long, 
& resonated at the bases by individual variable capacitors.

I like this method of feeding the antennas, because I'm able to resonate each 
"L" individually & exactly on 1.820-MHz, without the hassle of pruning / 
trimming of any wire (a simple touch-up of the respective air variable 
capacitor does the trick)...but I'm wondering if maybe I'm introducing more 
high-angle radiation off of the flat top portions of each "L", than I really 
want to...

Note: the vertical portions of each "L" here is about 70' tall...the horizontal 
100' balance is true horizontal, away from the vertical portion.

Any & all comments / revommendations are solicited in advance of the coming Top 
Band DX season...! 

Thanks in advance, & 

~73~ Eddy VE3CUI - VE3XZ

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