Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Mark Connelly via IRCA
--- Begin Message ---
I concur: the PDF presentation of the data saved me time since I was about to 
paste it into Excel, or rather its Open Office clone, here.

The 18 x 18 ft. corner fed loop (a.k.a. SuperLoop?) does look pretty good.  
I've always had pretty good luck at the shore with a 6.6 x 6.6 ft. (2x2m) 
"micro SuperLoop" on the car roof:
https://www.qsl.net/wa1ion/loop/car_roof_loop.htm

Admittedly something that small needs a lot of amp gain but, remarkably, it 
gets almost as much DX as a larger antenna of similar shape, at least at a high 
signal level seashore site.
A bigger SuperLoop I used here a long time for South American / Caribbean DX 
was 10m vertical by 11m horizontal (33 x 36 ft.); peak 165 deg., null 345 deg.  
So also an almost-square shape.  Amplification not usually required.

This provided good back nulls with only a bit of termination resistance 
tweaking needed across the band.  Presently it is out of service because of 
tree damage during a storm a few months back.  Something similar will go back 
up before long.  The larger peak-east / null-west SuperLoop is what I having 
been using most of the time except for occasional smaller temporary test 
antennas,

Customarily, going back to the first articles on the Ewe in QST ('90s), 
antennas in the Ewe / Flag / SuperLoop family were spec'ed with a horizontal 
dimension about double the vertical one.  But width to height ratios less than 
2 seem to work fine, as noted above.

Kaz deltas are usually specified with width 3 to 4 times height but in testing 
at my former Billerica, MA QTH I successfully used ones with that ratio closer 
to 2.

Of course the DKAZ does better than single loop designs in terms of a wider 
null zone.  The penalty is that you need a lot more space, something many of us 
don't have, so we may need to resort to one-frequency-at-a-time phasing to take 
down the worst pests. 

Mark Connelly, WA1ION
South Yarmouth, MA

<<
Thanks for reformatting and posting this, Nick! The 18 X 18 corner fed loop
looks better than I expected; I may try this with a FLG100LN in the limited
space I'll have at Cape Lookout in a few days.

73,

Guy Atkins
Puyallup, WA
>> 
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Donald Barnes via IRCA
--- Begin Message ---
Thanks for running the simulations Chuck. Thanks for the formatting assist 
Nick. That’s great stuff!

Craig

Sent from my iPhone

> On Oct 25, 2018, at 3:26 PM, Chuck Hutton  wrote:
> 
> Bill -
> 
> 
> I'll try to get around to it shortly, even if I am sick of running the 
> simulations.
> 
> 
> Chuck
> 
> 
> 
> From: IRCA  on behalf of bill [his.com] 
> 
> Sent: Thursday, October 25, 2018 1:43 PM
> To: Mailing list for the International Radio Club of America
> Subject: Re: [IRCA] DKAZ and Flag data
> 
> Thanks for running this Chuck and to Nick for making the results readable.
> 
> I’ll repeat a request I made a few days ago - any chance of adding a column 
> for 1MHz?
> 
> My impression is that there is not a linear degradation in gain on the DKAZ 
> but that it falls off more rapidly below 700 or 800 kHz.  Therefore I’m 
> betting a run at 1MHz would have similar values to that at 1.5MHz.
> 
> Bill Whitacre
> 
> ---
> 
>> On Oct 25, 2018, at 3:37 PM, Nick Hall-Patch  wrote:
>> 
>> I've posted Chuck's tabulated results at
>> 
>> http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf
>> 
>> Hate to think of the work he has put into this going to waste because of the 
>> mail limitation.  It's good information, and this has been a really 
>> worthwhile discussion.
>> 
>> best wishes,
>> 
>> Nick
>> 
>> 
>> 
>> At 18:40 2018-10-25, Chuck Hutton wrote:
>>> Here's an updated data set on the DKAZ and Corner Fed Loop.
>>> 
>>> 
>>> DKAZ
>>> LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
>>> AND TERM1.5 MHZ F/B
>>> AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
>>> (.5 and 1.5 MHZ)   6 DB WIDTH
>>> (.5 and 1.5 MHZ)
>>> 100 -61.1   -34.6   35.1 (1150) 47.3 (1100) 8.9 7.9 99 
>>> / 101140 / 150
>>> 120 -58 -31.8   42  32.5
>>> 140 -55.4   -29.5   37.430.7
>>> 160 -53.2   -27.5   39.4 (1000) 26.5 (1100) 8.7 7   97 
>>> / 102140 / 140
>>> 180 -51.2   -26.8   44.822.2
>>> 200 -49.5   -24.2   45.2 (1500) 19.1 (1500) 8.6 11.23   96 
>>> / 106140 / 150
>>> CORNER FED LOOP
>>> 18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or 1050) 8.5 8.7 
>>> 150 /  151  190 / 200
>>> 18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
>>> 25 x 50 -42.4   -24.2   35.8 (1175) 27.6(1225)  7.7 7.7 146 
>>> / 150   200 / 200
>>> 
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>> 
>> Nick Hall-Patch
>> Victoria, BC
>> Canada
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread C B via IRCA
--- Begin Message ---
 Guy,
Here's hoping you have a great time at Cape Lookout and that current conditions 
continue through your stay! I have two collapsible 20 ft. fiberglass fishing 
poles. 18' x 18' Corner fed loop, hmmm.
Craig BarnesWheat Ridge, CO
On Thursday, October 25, 2018, 5:31:22 PM MDT, Guy Atkins 
 wrote:  
 
 Thanks for reformatting and posting this, Nick! The 18 X 18 corner fed loop
looks better than I expected; I may try this with a FLG100LN in the limited
space I'll have at Cape Lookout in a few days.

73,

Guy Atkins
Puyallup, WA
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Guy Atkins
Thanks for reformatting and posting this, Nick! The 18 X 18 corner fed loop
looks better than I expected; I may try this with a FLG100LN in the limited
space I'll have at Cape Lookout in a few days.

73,

Guy Atkins
Puyallup, WA
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Chuck Hutton
Bill -


I'll try to get around to it shortly, even if I am sick of running the 
simulations.


Chuck



From: IRCA  on behalf of bill [his.com] 

Sent: Thursday, October 25, 2018 1:43 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] DKAZ and Flag data

Thanks for running this Chuck and to Nick for making the results readable.

I’ll repeat a request I made a few days ago - any chance of adding a column for 
1MHz?

My impression is that there is not a linear degradation in gain on the DKAZ but 
that it falls off more rapidly below 700 or 800 kHz.  Therefore I’m betting a 
run at 1MHz would have similar values to that at 1.5MHz.

Bill Whitacre

---

> On Oct 25, 2018, at 3:37 PM, Nick Hall-Patch  wrote:
>
> I've posted Chuck's tabulated results at
>
> http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf
>
> Hate to think of the work he has put into this going to waste because of the 
> mail limitation.  It's good information, and this has been a really 
> worthwhile discussion.
>
> best wishes,
>
> Nick
>
>
>
> At 18:40 2018-10-25, Chuck Hutton wrote:
>> Here's an updated data set on the DKAZ and Corner Fed Loop.
>>
>>
>> DKAZ
>> LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
>> AND TERM1.5 MHZ F/B
>> AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
>> (.5 and 1.5 MHZ)   6 DB WIDTH
>> (.5 and 1.5 MHZ)
>> 100 -61.1   -34.6   35.1 (1150) 47.3 (1100) 8.9 7.9 99 / 
>> 101140 / 150
>> 120 -58 -31.8   42  32.5
>> 140 -55.4   -29.5   37.430.7
>> 160 -53.2   -27.5   39.4 (1000) 26.5 (1100) 8.7 7   97 / 
>> 102140 / 140
>> 180 -51.2   -26.8   44.822.2
>> 200 -49.5   -24.2   45.2 (1500) 19.1 (1500) 8.6 11.23   96 / 
>> 106140 / 150
>> CORNER FED LOOP
>> 18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or 1050) 8.5 8.7  
>>150 /  151  190 / 200
>> 18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
>> 25 x 50 -42.4   -24.2   35.8 (1175) 27.6(1225)  7.7 7.7 146 
>> / 150   200 / 200
>>
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>
> Nick Hall-Patch
> Victoria, BC
> Canada
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread bill [his.com]
Thanks for running this Chuck and to Nick for making the results readable.

I’ll repeat a request I made a few days ago - any chance of adding a column for 
1MHz?

My impression is that there is not a linear degradation in gain on the DKAZ but 
that it falls off more rapidly below 700 or 800 kHz.  Therefore I’m betting a 
run at 1MHz would have similar values to that at 1.5MHz.

Bill Whitacre

---

> On Oct 25, 2018, at 3:37 PM, Nick Hall-Patch  wrote:
> 
> I've posted Chuck's tabulated results at
> 
> http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf
> 
> Hate to think of the work he has put into this going to waste because of the 
> mail limitation.  It's good information, and this has been a really 
> worthwhile discussion.
> 
> best wishes,
> 
> Nick
> 
> 
> 
> At 18:40 2018-10-25, Chuck Hutton wrote:
>> Here's an updated data set on the DKAZ and Corner Fed Loop.
>> 
>> 
>> DKAZ
>> LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
>> AND TERM1.5 MHZ F/B
>> AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
>> (.5 and 1.5 MHZ)   6 DB WIDTH
>> (.5 and 1.5 MHZ)
>> 100 -61.1   -34.6   35.1 (1150) 47.3 (1100) 8.9 7.9 99 / 
>> 101140 / 150
>> 120 -58 -31.8   42  32.5
>> 140 -55.4   -29.5   37.430.7
>> 160 -53.2   -27.5   39.4 (1000) 26.5 (1100) 8.7 7   97 / 
>> 102140 / 140
>> 180 -51.2   -26.8   44.822.2
>> 200 -49.5   -24.2   45.2 (1500) 19.1 (1500) 8.6 11.23   96 / 
>> 106140 / 150
>> CORNER FED LOOP
>> 18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or 1050) 8.5 8.7  
>>150 /  151  190 / 200
>> 18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
>> 25 x 50 -42.4   -24.2   35.8 (1175) 27.6(1225)  7.7 7.7 146 
>> / 150   200 / 200
>> 
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>> 
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> 
> Nick Hall-Patch
> Victoria, BC
> Canada 
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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Chuck Hutton
Russ:


The formatting is perfect in my email reader (Outlook).

I'll decline the opportunity to reformat for various email readers since Nick 
posted the original file..


Chuck





From: IRCA  on behalf of Russ Edmunds 

Sent: Thursday, October 25, 2018 12:39 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] DKAZ and Flag data

For Chuck and others, I found some years back that if I sent a draft to myself 
first and then edited it and re-sent it, I could minimize that problem, but 
it's more work than some may want to put into it.


Russ Edmunds

WB2BJH

Blue Bell, PA

Grid FN20id


From: IRCA  on behalf of Nick Hall-Patch 

Sent: Thursday, October 25, 2018 3:37:26 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] DKAZ and Flag data

I've posted Chuck's tabulated results at

http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf

Hate to think of the work he has put into this going to waste because
of the mail limitation.  It's good information, and this has been a
really worthwhile discussion.

best wishes,

Nick



At 18:40 2018-10-25, Chuck Hutton wrote:
>Here's an updated data set on the DKAZ and Corner Fed Loop.
>
>
>DKAZ
>LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
>AND TERM1.5 MHZ F/B
>AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
>  (.5 and 1.5 MHZ)   6 DB WIDTH
>(.5 and 1.5 MHZ)
>100 -61.1   -34.6   35.1 (1150) 47.3
>(1100) 8.9 7.9 99 / 101140 / 150
>120 -58 -31.8   42  32.5
>140 -55.4   -29.5   37.430.7
>160 -53.2   -27.5   39.4 (1000) 26.5
>(1100) 8.7 7   97 / 102140 / 140
>180 -51.2   -26.8   44.822.2
>200 -49.5   -24.2   45.2 (1500) 19.1
>(1500) 8.6 11.23   96 / 106140 / 150
>CORNER FED LOOP
>18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or
>1050) 8.5 8.7 150 /  151  190 / 200
>18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
>25 x 50 -42.4   -24.2   35.8
>(1175) 27.6(1225)  7.7 7.7 146 / 150   200 / 200
>
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Nick Hall-Patch
Victoria, BC
Canada

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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Russ Edmunds
For Chuck and others, I found some years back that if I sent a draft to myself 
first and then edited it and re-sent it, I could minimize that problem, but 
it's more work than some may want to put into it.


Russ Edmunds

WB2BJH

Blue Bell, PA

Grid FN20id


From: IRCA  on behalf of Nick Hall-Patch 

Sent: Thursday, October 25, 2018 3:37:26 PM
To: Mailing list for the International Radio Club of America
Subject: Re: [IRCA] DKAZ and Flag data

I've posted Chuck's tabulated results at

http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf

Hate to think of the work he has put into this going to waste because
of the mail limitation.  It's good information, and this has been a
really worthwhile discussion.

best wishes,

Nick



At 18:40 2018-10-25, Chuck Hutton wrote:
>Here's an updated data set on the DKAZ and Corner Fed Loop.
>
>
>DKAZ
>LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
>AND TERM1.5 MHZ F/B
>AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
>  (.5 and 1.5 MHZ)   6 DB WIDTH
>(.5 and 1.5 MHZ)
>100 -61.1   -34.6   35.1 (1150) 47.3
>(1100) 8.9 7.9 99 / 101140 / 150
>120 -58 -31.8   42  32.5
>140 -55.4   -29.5   37.430.7
>160 -53.2   -27.5   39.4 (1000) 26.5
>(1100) 8.7 7   97 / 102140 / 140
>180 -51.2   -26.8   44.822.2
>200 -49.5   -24.2   45.2 (1500) 19.1
>(1500) 8.6 11.23   96 / 106140 / 150
>CORNER FED LOOP
>18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or
>1050) 8.5 8.7 150 /  151  190 / 200
>18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
>25 x 50 -42.4   -24.2   35.8
>(1175) 27.6(1225)  7.7 7.7 146 / 150   200 / 200
>
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Nick Hall-Patch
Victoria, BC
Canada

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Re: [IRCA] DKAZ and Flag data

2018-10-25 Thread Nick Hall-Patch

I've posted Chuck's tabulated results at

http://www3.telus.net/public/shallpat/4all/DKAZ_and_flag_size_comparisons.pdf

Hate to think of the work he has put into this going to waste because 
of the mail limitation.  It's good information, and this has been a 
really worthwhile discussion.


best wishes,

Nick



At 18:40 2018-10-25, Chuck Hutton wrote:

Here's an updated data set on the DKAZ and Corner Fed Loop.


DKAZ
LENGTH  .5 MHZ GAIN 1.5 MHZ GAIN.5 MHZ F/B
AND TERM1.5 MHZ F/B
AND TERMRDF .5 MHZ  RDF 1.5 MHZ 3 DB WIDTH
 (.5 and 1.5 MHZ)   6 DB WIDTH
(.5 and 1.5 MHZ)
100 -61.1   -34.6   35.1 (1150) 47.3 
(1100) 8.9 7.9 99 / 101140 / 150

120 -58 -31.8   42  32.5
140 -55.4   -29.5   37.430.7
160 -53.2   -27.5   39.4 (1000) 26.5 
(1100) 8.7 7   97 / 102140 / 140

180 -51.2   -26.8   44.822.2
200 -49.5   -24.2   45.2 (1500) 19.1 
(1500) 8.6 11.23   96 / 106140 / 150

CORNER FED LOOP
18 x 18 -52.5   -34.1   46.5 (1000) 43.7 (1025 or 
1050) 8.5 8.7 150 /  151  190 / 200

18 x 36 -47 -28.7   36.6 (1150) 30.4 (1150)
25 x 50 -42.4   -24.2   35.8 
(1175) 27.6(1225)  7.7 7.7 146 / 150   200 / 200


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Nick Hall-Patch
Victoria, BC
Canada 


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