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-boun...@hard-core-dx.com> on behalf of Don Moman
VE6JY <ve6j...@gmail.com>
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 <charle...@msn.com> 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
>
>
> ________________________________
>
>
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Nick Hall-Patch
Victoria, BC
Canada
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