[TowerTalk] re-tuning steppirs for lowest vswr

Mike nf4l_NO_SPAM at nf4l.com
Tue Jul 7 11:10:24 PDT 2009


None. As long as you just change just the driven element length.
> The gain is quite broad (very little change clear across the 20 meter band.).  The f/b is much sharper with frequency.
> I have the elements in a 4NEC2 model if you want to look at the patterns and charts.  I'd be happy to send them to you.  The program is free to download.
>
> I've made similar offers many times to others.  No one has ever taken me up on my offer, though.  But antenna modeling is a fascinating topic that will show you all kinds of things about your antenna (such as the effect of changing height, what happens if you mount another antenna nearby, etc.)
>
> Rick  K2XT
>   
I'd like to see your data, Rick.
73, Mike NF4L


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