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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+RFI\s+cured\s+with\s+1\/4\s+wave\s+wire\s*$/: 13 ]

Total 13 documents matching your query.

1. [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Gerald Wolczanski <jerrywolczanski@earthlink.net>
Date: Thu, 18 Feb 2016 19:42:59 -0500
It dawned on me that the noise levels on my little 30 meter transceiver were high, too high, and I began investigating and "Googling" various fixes. I wasn't hearing atmospheric noise...and my old st
/archives//html/RFI/2016-02/msg00103.html (8,248 bytes)

2. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Fri, 19 Feb 2016 09:57:45 -0800
You are confused about the difference between "grounding" and "bonding." I suggest that you study this tutorial on the subject. A year or two ago, N0AX used it as the jumping off point for a series o
/archives//html/RFI/2016-02/msg00106.html (8,148 bytes)

3. [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Gerald Wolczanski <jerrywolczanski@earthlink.net>
Date: Sat, 20 Feb 2016 15:59:07 -0500
Jim: I get the distinction between a lightning ground and an RF ground. In the case of an end-fed wire (that would be me) where a small portion of the antenna comes right into the shack, that seems t
/archives//html/RFI/2016-02/msg00107.html (6,816 bytes)

4. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 20 Feb 2016 14:02:40 -0800
On Sat,2/20/2016 12:59 PM, Gerald Wolczanski wrote: What am I missing here? Every schematic I've seen of an end-fed wire shows a ground symbol at the tuner. As all my equipment chassis are connected
/archives//html/RFI/2016-02/msg00108.html (9,306 bytes)

5. [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Gerald Wolczanski <jerrywolczanski@earthlink.net>
Date: Sat, 20 Feb 2016 21:15:20 -0500
Jim, I totally understand antenna return currents in an unbalanced antenna....having once built a vertical with 110 radials. My current 135' end-fed inverted-L is a superb performer with my fan of ra
/archives//html/RFI/2016-02/msg00109.html (7,126 bytes)

6. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sat, 20 Feb 2016 19:29:46 -0800
Even a dipole center-fed with two-wire line can be unbalanced by its surroundings, and even with a "balanced" tuner. Balance is defined as impedances in the system being equal to the reference plane
/archives//html/RFI/2016-02/msg00110.html (10,457 bytes)

7. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sun, 21 Feb 2016 08:00:32 -0500
On 2/20/2016 10:29 PM, Jim Brown wrote (in replying; single bar) : Can I attach my radial system (which I would disconnect from the copper pipe driven into the ground) to my L-network coupler and ISO
/archives//html/RFI/2016-02/msg00111.html (10,083 bytes)

8. [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Gerald Wolczanski <jerrywolczanski@earthlink.net>
Date: Sun, 21 Feb 2016 11:21:04 -0500
"RF ground" OK - I get your point. When I say "RF ground" I mean a place for antenna return currents to flow Back to my original question: "Why did the installation of a 1/4 wave wire attached to gro
/archives//html/RFI/2016-02/msg00112.html (7,646 bytes)

9. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: JW via RFI <rfi@contesting.com>
Date: Sun, 21 Feb 2016 18:06:40 +0000 (UTC)
Has anyone said it yet - laying a 1/4 wavelength of wire out 'on the ground' creates an (albeit somewhat lossy) open-endedquarter wave 'stub' of somewhat indeterminate Z. Recall, a quarter length awa
/archives//html/RFI/2016-02/msg00113.html (9,245 bytes)

10. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: "David Harmon" <k6xyz@sbcglobal.net>
Date: Sun, 21 Feb 2016 13:31:31 -0600
Years ago....this is how I resolved a TV raster problem on 80mtrs from my own TV. I used RG-6 and laid it on the floor....it was much less than 1/4 wave though. 73 David Harmon K6XYZ Sperry, OK Has a
/archives//html/RFI/2016-02/msg00114.html (9,834 bytes)

11. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sun, 21 Feb 2016 16:56:21 -0800
WAY too lossy to be useful. Recall, a quarter length away from the *open* end of a QW stubthe Z exhibits a low Z value. This is tantamount to 'walking' halfway around the perimeter of the Smith Chart
/archives//html/RFI/2016-02/msg00118.html (9,526 bytes)

12. [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: JW via RFI <rfi@contesting.com>
Date: Mon, 22 Feb 2016 03:34:09 +0000 (UTC)
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
/archives//html/RFI/2016-02/msg00122.html (9,963 bytes)

13. Re: [RFI] RFI cured with 1/4 wave wire (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Sun, 21 Feb 2016 20:05:30 -0800
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 respo
/archives//html/RFI/2016-02/msg00123.html (10,214 bytes)

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