[RFI] RFI cured with 1/4 wave wire

Jim Brown jim at audiosystemsgroup.com
Sun Feb 21 23:05:30 EST 2016


Jim,

I DID answer the question -- it simply requires some thinking based on 
what I said.  And what I said was not "opinion," it was a digest of how 
things work.

FWIW, I didn't think much of your response either, but I was trying to 
be nice.

BTW -- I know quite a bit about coax and stubs.  Fifty years ago, I 
taught a transmission lines course at DeVry, and a transmission line 
matching method for broadbanding an 80M dipole was the subject of my 
undergraduate thesis at the Univ of Cincinnati.

See k9yc.com/Coax-Stubs.pdf   and http://k9yc.com/LocatingStubs.pdf

Nobel laureate K1JT heard my presentation of the material in the first 
link at Pacificon several years ago and told me it was excellent. The 
Power Point is also on the website. The second link was published in 
National Contest Journal last year.

73, Jim K9YC

On Sun,2/21/2016 7:34 PM, JW via RFI wrote:
> Jim Brown, the man asked a question which, so far, you have not made a reasonable attempt to answer. The original subject was "RFI cured with 1/4 wave wire", less a request for 'help' than a request for ideas on why this approach worked.
> I did supply a reasonable hypothesis, and you disagreed, with little to no more than opinion and hand wave. I am of the mind that perhaps you may not be as studied or practiced with 'stubs' as some of us are, no matter the environment.
> Please direct your attention to the question posed by the original poster. No other plausible explanations have been presented that explain the first poster's experience that I have seen, but, I may have missed something as I have not received all replies on this subject.



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