Re: [IRCA] More DKaz changes of characteristics with frequency

[Chuck Hutton <charlesh3@xxxxxxx>]

Kaz -


OK, now I understand. I assumed you were saying the data in the main table didn't mat your data.

And you are quite right that the rolloff data is for a 200' DKAZ. I'll re-label it.

But it won't make any difference - there is going to be a big rolloff regardless of exact size.


Chuck


________________________________
From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Neil Kazaross <neilkaz58@xxxxxxxxx>
Sent: Saturday, October 27, 2018 6:56 AM
To: irca@xxxxxxxxxxxxxxxx
Subject: Re: [IRCA] More DKaz changes of characteristics with frequency

Chuck, the data I am talking about is the data from your results. I am not
sure we are talking about the same thing, but the gain (signal level)
figures in the long table are clearly the one's from you 200 ft data rather
than 160 ft. Perhaps I am missing an earlier email or two in this thread?

I attach my EZNEC model of Mark D's typical 20 x 140 ft DKAZ and all the
have EZNEC are free to adjust size, check elevation patterns etc etc.

73 KAZ

On Fri, Oct 26, 2018 at 11:28 PM Chuck Hutton <charlesh3@xxxxxxx> wrote:

> It's kind if hard to resolve things with nothing to shoot at. How about
> emailing your data to me?
>
>
> Chuck
>
> ________________________________
> From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Neil Kazaross <
> neilkaz58@xxxxxxxxx>
> Sent: Friday, October 26, 2018 6:48 PM
> To: irca@xxxxxxxxxxxxxxxx
> Subject: Re: [IRCA] More DKaz changes of characteristics with frequency
>
> If this is the table I am supposed to have...
>
> http://www3.telus.net/public/shallpat/4all/DKAZ%20and%20flag%20size%20comparisons1.pdf
>
> Please check again since the gain figures in your table are almost a
> perfect match to those for 200 ft.
>
> My simulations show similar to yours in that when the antenna gets really
> large high end F/B suffers and the beam widens somewhat up high as well.
> 73 KAZ
>
> On Fri, Oct 26, 2018 at 8:12 PM Chuck Hutton <charlesh3@xxxxxxx> wrote:
>
> > I just verified it is indeed 160' data.
> >
> > I'm wondering if you have simulations or real world experience that
> paints
> > a different story? I always wpnder of our simulations line up exactly.
> >
> >
> > Chuck
> >
> >
> > ________________________________
> > From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Neil Kazaross <
> > neilkaz58@xxxxxxxxx>
> > Sent: Friday, October 26, 2018 4:56 PM
> > To: irca@xxxxxxxxxxxxxxxx
> > Subject: Re: [IRCA] More DKaz changes of characteristics with frequency
> >
> > The data in that table looks like 200 ft performance to me rather than
> 160
> > ft.  73 KAZ
> >
> > On Fri, Oct 26, 2018 at 5:17 PM Nick Hall-Patch <nhp@xxxxxxxx> wrote:
> >
> > > Chuck has added to to his original Excel file, a chart and data
> > > showing the DKAZ rolloff versus frequency, so here is the updated pdf
> > > version of his work:
> > >
> > >
> > >
> > >
> >
> http://www3.telus.net/public/shallpat/4all/DKAZ%20and%20flag%20size%20comparisons1.pdf
> > >
> > > best wishes,
> > >
> > > Nick
> > >
> > >
> > >
> > >
> > > Nick Hall-Patch
> > > Victoria, BC
> > > Canada
> > >
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