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1. [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 28 Aug 2015 14:59:57 -0400
Good day all, I have an RFI Problem, on 40 meters. Using a FlexRadio, on the waterfall, I can see a lot of vertical bars, evenly spaced across the band, starting around 6.4 MHz and moving up, finally
/archives//html/RFI/2015-08/msg00083.html (6,907 bytes)

2. Re: [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 28 Aug 2015 17:26:55 -0400
In AM mode, there are two sounds involved. One is a sort of high pitched raspy note, and the other sounds like 120 Hz (roughly) noise. The lower note is at the lowest frequency of the respective bars
/archives//html/RFI/2015-08/msg00087.html (7,714 bytes)

3. Re: [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 28 Aug 2015 17:39:29 -0400
Ill upload a video to Youtube over the weekend. -73 de Mike N3LI - _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2015-08/msg00088.html (7,368 bytes)

4. Re: [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sun, 30 Aug 2015 12:20:42 -0400
I've uploaded a video of my interference issue to YouTube - you can find it at: https://www.youtube.com/watch?v=ufeyOflkueY Some notes: I've moved the frequency around to hear the differing noises it
/archives//html/RFI/2015-08/msg00090.html (8,150 bytes)

5. Re: [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Mon, 31 Aug 2015 16:20:37 -0400
Its a Flex6300. Nothing has changed in the shack since the day I got it, and through the winter, 40 meters was in pretty constant use, and was working well until around a month ago, when this interfe
/archives//html/RFI/2015-08/msg00101.html (9,240 bytes)

6. Re: [RFI] 40 Meter RFI Issue (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sat, 26 Sep 2015 19:23:28 -0400
Update on my 40 meter RFI problem. Ever have one of those days when you meet the enemy, and he is you? Getting ready for the PAQSO Party was keeping me pretty busy latelym so I was living with the no
/archives//html/RFI/2015-09/msg00033.html (7,790 bytes)

7. [RFI] Auto quieting (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sat, 3 Oct 2015 21:28:55 -0400
Good evening all, My mobile installation in my 2013 Jeep Patriot went well, and is operating FB. I do have a bit of noise, but something is a little odd about it. Driving along with my foot on the ga
/archives//html/RFI/2015-10/msg00000.html (7,030 bytes)

8. Re: [RFI] Auto quieting (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Mon, 5 Oct 2015 11:51:56 -0400
I used old RG8 Coax shield - removed from the coax of course. Solder lugs on each end, and some heat shrink to keep it pretty. That will probably help with Kurts wire fraying issue too. One odd thing
/archives//html/RFI/2015-10/msg00010.html (10,968 bytes)

9. Re: [RFI] Dangerous Situation (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Mon, 25 Jan 2016 17:40:48 -0500
Had it happen at our mountaintop station this past summer. Would have been a real disaster except by luck I was there are the time. Only lost a BCB radio, one computer and ironically, a UPS. Exact sy
/archives//html/RFI/2016-01/msg00069.html (7,680 bytes)

10. Re: [RFI] DC Power supplies (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 6 May 2016 13:40:42 -0400
My Alinco switcher only throws out discernible RFI on the US AM Broadcast band, above that, its very quiet. The way I found it was adjusting the switcher frequency while watching the display on my Fl
/archives//html/RFI/2016-05/msg00032.html (14,914 bytes)

11. Re: [RFI] Mobile phone expansion could disrupt key weather satellites (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Thu, 14 Jul 2016 10:50:52 -0400
We just have to get our priorities straight. What are lives compared to checking ones facebook or surfing porn with their phone. And now playing Pokemon Go, which I fear is going to be Darwin in acti
/archives//html/RFI/2016-07/msg00043.html (11,024 bytes)

12. Re: [RFI] Quiet Switching Power Supply?, (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 5 Aug 2016 13:14:54 -0400
I will soon be posting a video regarding tests of the Alinco DM-330V Switching Power supply on Youtube. This will consist of showing the effects of the switcher, using a flex 6300 radio, and where th
/archives//html/RFI/2016-08/msg00030.html (7,827 bytes)

13. [RFI] Switching Power Supply test Video (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sun, 7 Aug 2016 12:45:46 -0400
I have produced a video on my YouTube channel regarding testing of a Switching Power Supply to ascertain potential RF interference. This particular test is of an Alinco DM-330MV and the radio is a Fl
/archives//html/RFI/2016-08/msg00036.html (6,977 bytes)

14. Re: [RFI] Switching Power Supply test Video (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sun, 7 Aug 2016 15:54:49 -0400
The antenna is a 96 foot doublet roughly 55 feet above the radio, and directly above it. Fed with ladder line. One of the most important aspects of this is that I make no assertion that there is no h
/archives//html/RFI/2016-08/msg00039.html (9,263 bytes)

15. Re: [RFI] Switching Power Supply test Video (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Sun, 7 Aug 2016 21:08:37 -0400
Absolutely correct. Id go as far as to suggest that the least applicable - if even the most accurate method of measuring that sort of thing is the tightly controlled laboratory environment because by
/archives//html/RFI/2016-08/msg00042.html (8,710 bytes)

16. Re: [RFI] Switching Power Supply test Video (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Tue, 16 Aug 2016 11:14:54 -0400
The antenna is a 96 foot doublet, fed with ladder line. Its about 55 feet above ground, so about 52 feet directly above the Alinco. I also have a club switch mode supply, the MFJ4225 that I will make
/archives//html/RFI/2016-08/msg00130.html (9,509 bytes)

17. Re: [RFI] SETI (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Tue, 30 Aug 2016 19:48:08 -0400
Careful - could be drug dealers! -73 de Mike N3LI - _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2016-08/msg00181.html (8,783 bytes)

18. Re: [RFI] led bulbs? (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Thu, 29 Sep 2016 19:20:25 -0400
The problem of course, is that no one wants that shiny new nuc power plant in their backyard. -73 de Mike N3LI - _______________________________________________ RFI mailing list RFI@contesting.com ht
/archives//html/RFI/2016-09/msg00124.html (7,879 bytes)

19. Re: [RFI] led bulbs? (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Fri, 30 Sep 2016 14:33:28 -0400
Im here for RFI mitigation, and not politics. Good day sir. -73 de Mike N3LI - _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/
/archives//html/RFI/2016-09/msg00128.html (7,210 bytes)

20. Re: [RFI] Using an SDR to locate RFI (score: 1)
Author: Michael Coslo <mcoslo@comcast.net>
Date: Mon, 12 Dec 2016 12:32:30 -0500
Ive done local troubleshooting using a FlexRadio signature series and SmartSDR. On the OSX side, the same radio with DogParkSDR. Ive done some experiments on switching Power supply noise, and on othe
/archives//html/RFI/2016-12/msg00030.html (7,878 bytes)

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