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281. Re: [RFI] A quick Question about CMC placement (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 28 Jun 2021 10:40:20 -0600; Best is to insert two CMCs. One at the feedpoint of the dipole or beam feedpoint and the second at the shack end of the coaxial transmission line. They are also good for keeping local RFI from the re; /archives//html/RFI/2021-06/msg00074.html (10,238 bytes)
282. Re: [RFI] A quick Question about CMC placement (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 28 Jun 2021 11:45:36 -0600; There is no true "ground" for RF fields. Only returns. The space station doesn't require a "ground" for comms to/from earth stations. The Crab Nebula does not require a "ground" to fill deep space wi; /archives//html/RFI/2021-06/msg00078.html (9,594 bytes)
283. Re: [RFI] RFI concerns re. "The Smart Motor System" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Thu, 1 Jul 2021 17:43:26 +0000; Looking at the www site, this looks like a license for lots of RFI !!!! Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* _______________________________________________ RFI mailing list RFI@cont; /archives//html/RFI/2021-07/msg00001.html (7,559 bytes)
284. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 5 Jul 2021 12:27:36 -0600; A strong RF source likely sent the front end and maybe even the IF into saturation to produce a condition where nothing was received. I would judge this to be classic for RF overload. Heaven knows wh; /archives//html/RFI/2021-07/msg00004.html (11,453 bytes)
285. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 5 Jul 2021 16:39:13 -0600; ARRL has always been behind the power curve. Remember how long it took them to recognize the lowly transistor and to start including it in their publications, especially QST and the Handbook? A long; /archives//html/RFI/2021-07/msg00007.html (9,192 bytes)
286. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 5 Jul 2021 18:48:30 -0600; And worse yet, they come out of 4-years not knowing Ohm's Law!!! They may be able to put it on the white board, but certainly don't know how to use it. Pretty important!!!! ?? Dave - WØLEV -- *Dave -; /archives//html/RFI/2021-07/msg00009.html (10,844 bytes)
287. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Mon, 5 Jul 2021 21:24:29 -0600; I venture a guess that my novice receiver was worse: the Heathkit AR-3. Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* _______________________________________________ RFI mailing list RFI@cont; /archives//html/RFI/2021-07/msg00013.html (9,359 bytes)
288. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Tue, 6 Jul 2021 10:48:39 -0600; And now in this new 'digital age', most of us wish we had our old Novice station. At least I do. The DX-40 kept my hands warm on winter evenings in Michigan. I didn't have heat in my bedroom other th; /archives//html/RFI/2021-07/msg00019.html (11,787 bytes)
289. Re: [RFI] Odd broadcast radio reception. (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Wed, 7 Jul 2021 11:07:11 -0600; I'd also admit, had I appreciated the 'features' of a good regen receiver, it, too, would have been a better choice than the Heath AR-3. I've built several JFET regens since then and the wonder of a; /archives//html/RFI/2021-07/msg00023.html (15,678 bytes)
290. [RFI] LED LIGHT BULBS AND RFI - EDN FROM KEN WYATT, WA6TTY (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Wed, 7 Jul 2021 11:35:31 -0600; https://www.edn.com/comparing-conducted-emissions-from-led-lamps/ -- *Dave - WØLEV* _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mai; /archives//html/RFI/2021-07/msg00025.html (6,654 bytes)
291. [RFI] YET ANOTHER "WITH LOVE, FROM CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Sun, 11 Jul 2021 11:08:02 -0600; But nowhere on the product does it admit where it is made. Have a read of a "garage screw-in light" (LED). All the proper markings are present, but certainly are bogus. Have a read of the attachment; /archives//html/RFI/2021-07/msg00033.html (7,320 bytes)
292. Re: [RFI] YET ANOTHER "WITH LOVE, FROM CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Sun, 11 Jul 2021 14:05:55 -0600; Try this for missing attachment. See attachment. Let me know if this works for the attachment. Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* _______________________________________________ RF; /archives//html/RFI/2021-07/msg00035.html (8,672 bytes)
293. Re: [RFI] YET ANOTHER "WITH LOVE, FROM CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Sun, 11 Jul 2021 18:09:39 -0600; Does this group not permit attachments? Then, how do we get information to the group? I spent a reasonable amount of time in testing this product and writing up the report. I'd really like to share i; /archives//html/RFI/2021-07/msg00037.html (8,999 bytes)
294. [RFI] ANOTHER "WITH LOVE, from CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Tue, 13 Jul 2021 13:08:29 -0600; I hope this works. Here is the link on the Google drive: https://drive.google.com/file/d/1PQyy9_Pxf-LzeEFCVZ3MjjuJqnCI4Apl/view?usp=sharing -- *Dave - WØLEV* *Just Let Darwin Work* __________________; /archives//html/RFI/2021-07/msg00041.html (7,095 bytes)
295. Re: [RFI] ANOTHER "WITH LOVE, from CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Tue, 13 Jul 2021 19:19:04 -0600; Thank you!! I will post things in like manner in the future. Thank you all for the coaching. Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* _______________________________________________ RFI; /archives//html/RFI/2021-07/msg00044.html (7,950 bytes)
296. Re: [RFI] ANOTHER "WITH LOVE, from CHINA" (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Wed, 14 Jul 2021 10:51:45 -0600; Yes, legally, we are bound to the limits set by FCC. However, I believe most of us would agree they are pretty liberal. Originally, limits were set based on 1950's technology. Then, at the very begin; /archives//html/RFI/2021-07/msg00051.html (13,087 bytes)
297. Re: [RFI] periodic peaks in the spectrum (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Tue, 20 Jul 2021 14:02:49 -0600; I successfully use a home brew 0.5-meter diameter shielded and untuned loop for DFing and RFI sleuthing. I couple that through a broadband transformer to a receiver. I let the receiver do the frequen; /archives//html/RFI/2021-07/msg00060.html (10,175 bytes)
298. Re: [RFI] Mystery noise (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Thu, 12 Aug 2021 18:02:46 +0000; Oh,.....this wonderful digital age. Where is FCC?????? Why even have Part 15 if there is no enforcement????? I know, ....., I'm opening a forbidden can of worms, but......... Dave - WØLEV -- *Dave -; /archives//html/RFI/2021-08/msg00038.html (10,286 bytes)
299. Re: [RFI] Toyota Prius RFI? (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Thu, 12 Aug 2021 22:31:25 +0000; " I occasionally play works by contemporary composers and for two reasons. First to discourage the composer from writing any more and secondly to remind myself how much I appreciate Beethoven." Jasch; /archives//html/RFI/2021-08/msg00042.html (8,247 bytes)
300. Re: [RFI] Mystery noise (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Fri, 13 Aug 2021 18:04:04 +0000; Your "secret" is safe, here! But, I have a rather monstrous common mode choke on the new refrigerator/freezer power cord. At least that was accessible unlike the clothes washer/dryer and dish washer,; /archives//html/RFI/2021-08/msg00051.html (11,152 bytes)

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