Re: [IRCA] KAZ versus Pennant/Flag

[Nick Hall-Patch <nhp@xxxxxxxx>]

Thanks for doing that Chuck.  One interesting number is 42dB F/B at 
0.5MHz for 120'.  Is that correct?

But the problem seems to go beyond low signal level on the lower band 
with smaller DKaz.  Beyond that one data point I mention, it also 
seems that the larger DKaz provides significantly better F/B on the 
low band, as it also weakens the F/B on the upper band.

Looks like two DKaz' are in order for the next DXpedition, a big one 
and a small one...


Nick




At 01:31 2018-10-24, Chuck Hutton wrote:
> Here's a little comparison of DKAZ'es from 100' to 200'.
>
>
> LENGTH  .5 MHZ GAIN     1.5 MHZ GAIN    .5 MHZ F/B      1.5 MHZ F/B
> 100     -61.1   -34.6   35.1    47.3
> 120     -58     -31.8   42      32.5
> 140     -55.4   -29.5   37.4    30.7
> 160     -53.2   -27.5   39.4    26.5
> 180     -51.2   -26.8   44.8    22.2
> 200     -49.5   -24.2   45.2    19.1
>
>
> The formatting is a little messed up when pasting data from Excel.
>
>
> Chuck
>
>
> ________________________________
> From: IRCA <irca-bounces@xxxxxxxxxxxxxxxx> on behalf of Don Moman 
> VE6JY <ve6jy.1@xxxxxxxxx>
> Sent: Tuesday, October 23, 2018 4:02 PM
> To: International Radio Club of America
> Subject: Re: [IRCA] KAZ versus Pennant/Flag
>
> http://www.durenberger.com/documents/DKAZ070314.pdf   is updated and still
> SOME FIELD INFORMATION ON THE DOUBLE DELTA (D KAZ) 
> ANTENNA<http://www.durenberger.com/documents/DKAZ070314.pdf>
> www.durenberger.com
> The D$B!>(BKaz antenna for MW (and well above) is a 
> Double$B!>(BDelta variant, as seen below. The 
> $B!H(Bself$B!>(Bimpedance$B!I(B of the D$B!>(BKaz is around 1000 
> ohms at corners $B!H(BA$B!I(B and $B!H(BB.$B!I(B The null$B!>(Bpot 
> at 2000 ohms gives good range.
>
>
>
> shows the 140 foot version.  I don't see anything more recent.... I wish I
> had. Is there a link?  I just built 4 of them last year, one for each major
> direction. I finally have them all hooked up for this season. With the low
> wire they are a great moose catcher!  I could have easily made them higher
> but I was just following the instructions. I could have made them larger as
> I have plenty of room. Now not so easy...
> Don
> VE6JY
>
>
> On Tue, Oct 23, 2018 at 3:36 PM Chuck Hutton <charlesh3@xxxxxxx> wrote:
>
> > As do we all I think. The 140 foot version was abandoned over 5 years ago
> > as it wasn't cutting it at th low end.
> >
> >
> > Chuck
> >
> >
> > ________________________________
> >
> >
> _______________________________________________
> IRCA mailing list
> IRCA@xxxxxxxxxxxxxxxx
> http://montreal.kotalampi.com/mailman/listinfo/irca
>
> Opinions expressed in messages on this mailing list are those of the 
> original contributors and do not necessarily reflect the opinion of 
> the IRCA, its editors, publishing staff, or officers
>
> For more information: http://www.ircaonline.org
>
> To Post a message: irca@xxxxxxxxxxxxxxxx
>
> _______________________________________________
> IRCA mailing list
> IRCA@xxxxxxxxxxxxxxxx
> http://montreal.kotalampi.com/mailman/listinfo/irca
>
> Opinions expressed in messages on this mailing list are those of the 
> original contributors and do not necessarily reflect the opinion of 
> the IRCA, its editors, publishing staff, or officers
>
> For more information: http://www.ircaonline.org
>
> To Post a message: irca@xxxxxxxxxxxxxxxx

Nick Hall-Patch
Victoria, BC
Canada 

_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx