[600MRG] The Dallas Files

[Neil Klagge]

I found this feedback on the article Rudy mentioned....
 
Concerning the article “The DK6ED Double Loop” that appeared in the March 
2015 issue of QST, the author offers the following advice: “Be careful 
with the phasing of the feedback coils in the Q501 and Q502 circuit as the 
amplifier might oscillate. You can check it with an RF probe. The current at 
each section should not exceed 5 mA. Otherwise, simply twist the loop around to 
change the phase of the feedback. Also, for best performance, resistors 
R701-R708 in Figure 7 should be 82 Ω.” 
Just and FYI ...
*´¨)
¸.•´¸.•*´¨) ¸.•*¨)
(¸.•´ (¸.•`   Neil

My Faith website: http://neilsfaith.webs.com/
My ham radio websites: http://w0yse.webs.com/ and http://wg2xsv.webs.com


 

 
> From: n6lf at epud.net
> To: 600mrg at w7ekb.com
> Date: Sun, 15 Mar 2015 10:06:57 -0700
> Subject: Re: [600MRG] The Dallas Files
> 
> Warren has just done us all a favor, thanks!  
> 
>  
> 
> In the march issue of QST there was an article by DK6ED on phased loop
> antennas like those in the Dallas files.  Not having seen the Dallas files I
> immediately did some extensive modeling of DK6ED's idea which verified that
> this is a class of antennas well worth our attention: flexible, simple,
> broadband, good patterns, etc.  It's clear that Dallas is way ahead of me so
> I'm reading his stuff with great care.  I'm going to erect some version this
> summer!
> 
>  
> 
> 73, Rudy N6LF
> 
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