[TowerTalk] VE3GK stacking drawing

[Stein Roar Brobakken]

Hi Tim

Yes, it had been great to had dad

73 Rag La6FJA 

> From: Tim Duffy K3LR [k3lr at k3lr.com]
> Sent: 2007-10-08 06:38:40 CEST
> To: 'LA6FJA/K3RAG Stein Roar Brobakken' [s-roabr at online.no], towertalk at contesting.com
> Subject: RE: [TowerTalk] VE3GK stacking drawing
> 
> Hello Stein!
> 
> Starting on page 130 of Volume 7 of the ARRL Antenna Compendium shows the
> mono band stacking schematics I use. They are built from 1/4 wave sections
> of RG213, RG11 and RG83. The book is available from the ARRL.
> 
> My two high stack switch design is simple using only RG-83 (35 ohm coaxial
> cable) to match 2 parallel 50 ohm loads and another 1/4 wavelength of RG213
> is used when feeding the single Yagi's so that the line length to the
> amplifier is not changed regardless of antenna selection. This keeps the
> VSWR at the same point which keeps the amplifier happy regardless of antenna
> combination.
> 
> I also have a design that incorporates a both-out-of-phase (BOP) selection.
> This creates a high angle lobe. We use this feature on 40 and 20 meters.
> 
> I use these designs for all of my 2,3 and 4 high stacked Yagi arrays.
> 
> The secret to good Yagi monoband stacking is using exact ODD quarter
> wavelength feedlines (current forcing) to feed the individual Yagis.
> 
> I would be happy to scan my two high design and email it to you if you like.
> 
> 73!
> Tim K3LR
> 
> http://www.k3lr.com  
> 
> -----Original Message-----
> From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of LA6FJA/K3RAG Stein
> Roar Brobakken
> Sent: Sunday, October 07, 2007 10:16 PM
> To: towertalk at contesting.com; towertalk-bounces at contesting.com
> Subject: [TowerTalk] VE3GK stacking drawing
> 
> Hi
> 
>  
> 
> I had before a nice document/picture made of VE3GK with his
> stacking/matching with different types of lengths of RG-213 and RG-11----
> 
> Do any one of you have a copy of this ?? 
> 
> I showed stacking with 2 yagi, 3 yagi and 4 yagies.
> 
>  
> 
> VE3GK also QRT after SK
> 
>  
> 
>  
> 
>  
> 
> #---------------------------------------------------------------------------
> -----#
> 
> Stein Roar Brobakken               (aka RAG LA6FJA)
> 
> P.O.BOX 5
> 
> NO-2853 REINSVOLL
> 
> Norway
> 
>  
> 
> Telephone: +47 48 22 44 21
> 
>  <mailto:la6fja at gmail.com> mailto:la6fja at gmail.com
> 
> skype:la6fja
> 
> HAMRADIO: LA6FJA - K3RAG - DU1/K3RAG
> 
>  
> 
> Member of: NRRL #LA-M 11387, WWYC#129, CTC#540, WE4YL SCDC DX Club,LA IOTA
> Club, ARRL, PARA DX CLUB, Gjøvik- og Totengruppa av NRRL, Oppland DX Team
> 
>  
> 
>  <http://www.la6fja.eu> www.la6fja.eu 
> 
>  
> 
>  
> 
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