Re: [IRCA] Station #500! (Big Loop antennas)

[Chuck Hutton <charlesh3@xxxxxxx>]

Guy - 
The John Bryant article is only about KAZ antennas and doesn't touch the DKAZ version.I have some issues with the article - using a "surface area" concept to compare antennas whose gain is largely dependent only on the height of the vertical sections is not right.
Chuck

> From: dx@xxxxxxxxxxxxx
> Date: Sat, 18 Apr 2015 13:03:33 -0700
> To: irca@xxxxxxxxxxxxxxxx
> Subject: Re: [IRCA] Station #500! (Big Loop antennas)
> 
> Hi Nick,
> 
> John's article on large DKAZ antennas is the one that came to mind for me
> in this discussion of Super Loops. Although I believe a Super Loop is
> rectangular, the big DKAZ may be of interest to Brian:
> 
> http://www.dxing.info/equipment/kaz_bryant.dx
> 
> John compared 112 Ft. X 28 Ft.and 40 Ft. X 10 Ft. DKAZ antennas for this
> article.
> 
> 73,
> 
> Guy Atkins
> Puyallup, WA
> 
> 
> 
> 
> > ---------- Forwarded message ----------
> > From: Nick Hall-Patch <nhp@xxxxxxxx>
> > To: Mailing list for the International Radio Club of America <
> > irca@xxxxxxxxxxxxxxxx>
> > Cc:
> > Date: Sat, 18 Apr 2015 15:46:32 +0000
> > Subject: Re: [IRCA] Station #500!
> > Too big?   Never say that.
> >
> > John Bryant ran some supersized Ewe antennas, for example 70 feet high by
> > 100 feet horizontal at Orcas Island, but it suffered from grounding
> > difficulties insofar as nulling was concerned compared with a Wellbrook
> > array.  I can't find any reference that he ever tried it as a Superloop..
> >
> > When he ran one closer in size to what you're doing in Oklahoma (27' high
> > by 100' horizontal) over a good ground, he was suitably impressed, so I
> > suspect the loop version will do you fine.
> >
> > This is based on e-mails exchanged.  I can't find any formal articles, at
> > least with a brief search.  Seems odd, as John was a great documenter..
> >  Perhaps someone else can point us in the direction of a formal article..
> >
> > At any rate, I'd say that you should run with the big 'un.   It might be
> > good to run a smaller one too if you can, as my own experience with a
> > larger one was that the nulls weren't as good as a smaller one, but that
> > was queered by being on a city lot, and one end of the Superloop being very
> > close to the house and its electrical wiring.
> >
> > best wishes,
> >
> > Nick
> >
> >
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