[TowerTalk] JK C3S WARC Modifications

[Herbert Schoenbohm]

Exactly Jim...that is what I want to do.  Except I was going to make the
20-meter elements shorter for 18Mhz and the 10 meter element longer for 24
while leaving the 15 meter element the same.  This would give me a slightly
smaller and lighter antenna for 24 15 and 18.....although I really don't
need 15.

Herb, KV4FZ

On Fri, Nov 29, 2019 at 1:41 PM Jim Thomson <jim.thom at telus.net> wrote:

> Date: Thu, 28 Nov 2019 13:58:27 -0400
> From: Herbert Schoenbohm <herbert.schoenbohm at gmail.com>
> To: towertalk at contesting.com
> Subject: [TowerTalk] JK C3S WARC Modifications
>
> <I have a C3S tribander which I seldom use except when on WARC bands.  It
> is
> <useable there but not as good as I think it would be modifying it for 24
> <and 18Mhz.  I wonder if anyone has tried that?  I don't care about 10 and
> <15.  I think by just changing the dimension, i.e making the 10-meter
> <elements longer for 24Mhz  and the 15-meter element shorter to cover 18
> <Mhz, would possibly work.  Is there anyone who has done this successfully?
>
> <Herb, KV4FZ
>
> ##  contact  Ken  at JK  ants.  No  need to  buy  a megabuck  new
> yagi....then  ship it  to KV4  Land.
> The  issue  with the  F12 els is.... the brackets for  ele  to  boom  are
> fixed  In  place.   The  saving grace  is  the
> 18  +  24 mhz  bands are  only  100 kz  wide.
>
> ##  BTW, ur 15M  eles  would  have to be made  LONGER, not  shorter.   I
> would  shorten the  20M
> eles..and   relocate them  to  where the  15   els  currently  reside on
> the  boom.
>
> ##  what  u  propose is  easily  doable..at  zero  expense.
>
> ##  Then  u  end  up  with  a 18 +  24  mhz  duobander...with  flat  swr
> +  good  gain +  good  FB.
>
> Jim  VE7RF
>
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