Re: [IRCA] Puyallup, WA TP's for 9-7... Mediocre on any Antenna

[D1028Gary@xxxxxxx]

Hello Walt,
 
Thanks very much for your comments about the large experimental box  loops.
 
Quite a few photos and detailed construction information on these monsters  
is contained in the related 14-page article, which the editors of NRC and 
MWC  have kindly agreed to print in their club bulletins (Nick, with his busy 
 schedule, is still looking it over for the IRCA Technical Column).
 
I think the loop design would be very suitable for hanging from  the 
ceiling of the cottage at Haida Gwaii, assuming that you don't have too much  
electrical wiring in the vicinity. The PVC frames were specifically  designed 
for light weight, so that even the 9' sided loop weighs only about 16  pounds. 
The article gives detailed construction steps for building any of ten  
different-sized tuned passive loops, from 18" to 9'. Actually, John also  
mentioned about disguising one of these as a chandelier, and hanging it from the  
ceiling at Orcas :>)
 
73, Gary  
 
 
 
 
In a message dated 9/7/2009 3:40:24 P.M. Pacific Daylight Time,  
canswl@xxxxxxxxx writes:

D1028Gary@xxxxxxx wrote:
> Hello All,
>  
>  The ambitious plan here on this holiday morning was to test out the  new 
 9' 
> sided PVC box loop here in actual TP DXing, as rotated on  a  heavy-duty 
PVC 
> support base in the back yard. After serious labor  in  preparation for 
this 
> Labor Day test, everything was ready to  go at 1200 UTC--  except for the 
TP 
> signals.
>   
> The monster box loop was able to provide serious gain for this   
morning's 
> anemic TP's, but as John, Walt, Nigel and Dennis have  already  reported, 
the 
> signal levels were dreary at best. No  matter what the  antenna, if the 
> propagation is tanking, your DX  results will tank along with  it.
>  
> At the peak of a  very modest dawn enhancement (around 1315), weak audio 
was 
>   heard on 657-Pyongyang, 666-JOBK, 738-Taiwan (with the buzzing carrier) 
 
> and  972-HLCA, with strong audio on 594-JOAK, 747-JOIB and  828-JOBB. 
After  
> the lackluster Asian TP's faded at 1330, the  monster loop was swung 
around  
> for DU's, and weak audio from  738-Tahiti was heard, along with a strong 
> carrier  from  639-Fiji, and a moderate carrier from 648-Rhema-- among 
other  
>  moderate-carrier Kiwis and Aussies.
>  
> The morning wasn't  a total waste, however, as various mechanical  
> refinements to  this largest-sized PVC Loop were tested, and worked well. 
 When TP  
> conditions finally cooperate, this 9' sided (13'  diagonal)  tuned 
passive loop 
> should fully justify its $52 cost  :-)  
>  
> 73, Gary DeBock 
>  
> Modified  ICF-2010 (30" loopstick)
> 9' sided PVC Loop (related article is in  DXer.Ca, and in the Yahoo  
> Ultralightdx file site)  
>  
>  
>  
>   
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>   
Gary, I do hope that  someone is recording your efforts (photos) for 
prosperity!  I'd love  to try one of these sometime.  Vlad Titarev in 
Ukraine had a large  diameter loop at his DX shack which hung from the 
ceiling and could be  rotated by hand.  I could do the same at my cottage 
in Haida  Gwaii.........Walt
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