Hi Ronnie
I forgot to mention that if you gonna have vertical Delta loop.
The Centre must be at top leg and shield to lower as in a normal vertical
good luck !
73s Rag LA6FJA
> From: Stein Roar Brobakken [s-roabr@online.no]
> Sent: 2008-09-25 17:11:47 CEST
> To: ZS4RY [zr4rv@xsinet.co.za], towertalk@contesting.com
> Subject: RE: [TowerTalk] DELTA LOOP
>
> Hi Ronnie
>
> yes you can replace it with 2:1 balun
>
> but a Delta loop can also be made with 2 different looks
>
> 1. 0,33 lamba per side in the Delta ( a delta with 3 similar sides)
> 2. Delta with 2 like legs, have this formula with direct fed 50 ohm. Needs no
> Balun or 75 ohm.
> coax centre in >> 0,25 lamba + 0,3 lambda + 0,4 lambda + 0,05 lambda >>coax
> shield
>
>
> 73s Rag LA6FJA
>
> > From: ZS4RY [zr4rv@xsinet.co.za]
> > Sent: 2008-09-25 16:46:22 CEST
> > To: towertalk@contesting.com
> > Subject: [TowerTalk] DELTA LOOP
> >
> > One stupid question:
> >
> > When building a delta loop one need a 1/4 wave piece of 75 ohm coax to
> > match the antenna to the 50 Ohm feed. Can the 75 ohm be replaced with a 2:1
> > balun?
> >
> > Ronnie
> > ZS4RY
> >
> > _______________________________________________
> >
> >
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
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