[TowerTalk] 2-el 15/20 meter duobander

Jim Thomson jim.thom at telus.net
Sat Dec 2 12:13:30 EST 2017

Date: Sat, 2 Dec 2017 10:33:16 -0500
From: <john at kk9a.com>
To: <towertalk at contesting.com>
Subject: Re: [TowerTalk] 2-el 15/20 meter duobander

<Also, I try to avoid short element segments. FWIW, my SWR curves closely
<match NEC2.

<John KK9A

##  Do u mean the tubing scheduled used ??  That wont make any difference to the
electrical design.  The tips just have to be tweaked to resonate them where the softeware
wants them.   You will end up with a stronger mech design by not using swedged eles, and
instead starting at the tips with .375, then .5 then  .625 etc. 

Jim  VE7RF

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