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Re: Topband: K2AV 160m Folded Counterpoise Antenna - New Details Posted

To: olinger@bellsouth.net
Subject: Re: Topband: K2AV 160m Folded Counterpoise Antenna - New Details Posted
From: k2qmf@juno.com
Date: Fri, 9 Dec 2011 11:34:52 -0500
List-post: <topband@contesting.com">mailto:topband@contesting.com>
Hi Guy,

Many Thanks for you info.  I plan to build the transformer.

I am wondering how you housed the unit??

Thanks in advance for your input...

73,
Ted  K2QMF


 
On Thu, 8 Dec 2011 22:46:47 -0500 Guy Olinger K2AV
<olinger@bellsouth.net> writes:
> Just a word on ferrite beads, and other kinds of baluns.  Trust us, 
> if it
> could be done wrong, we blew it, if it could burn, we burned it, if 
> it
> could be cracked, we shattered it, if it couldn't stand up to 1.5 
> kw, we
> smoked it.  We tried every possible short cut and cheep trick 
> imaginable.
> Anything except winding a special transformer that we couldn't buy
> ready-made off a shelf somewhere.  We got where we got because 
> ultimately
> only a rugged isolation transformer would get it done.
> 
> We are NOT opposed to your verifying our experience in that regard, 
> by
> starting with beads and working your way up. Get in a supply of
> tranquilizers before you start. Only do one better than we did, 
> take
> pictures/video of the carnage for the entertainment of the masses.
> 
> The specific construction of the transformer stands up to 
> brick-on-key 1.5
> kw and runs cold.   There is a reason for the low mu powdered iron 
> choice.
> 
> 73, Guy.
> 
> On Thu, Dec 8, 2011 at 10:27 PM, Mike Waters <mikewate@gmail.com> 
> wrote:
> 
> > On Thu, Dec 8, 2011 at 7:21 PM, W0UCE <w0uce@nc.rr.com> wrote:
> >
> > > *       The ONLY means of achieving the required degree of 
> Isolation is
> > to
> > > use the Isolation Transformer as specified by K2AV
> > >
> >
> > I was thinking of sliding a whole bunch of ferrite beads over the 
> coax
> > feedline right at the end. But I'll take your word for it.
> >
> > This is all very interesting. I'd sure like to try Guy's invention 
> myself.
> >
> > 73, Mike
> > www.w0btu.com
> > _______________________________________________
> > UR RST IS ... ... ..9 QSB QSB - hw? BK
> >
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
> 
 
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