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References: [ +from:ka5s@earthlink.net: 420 ]

Total 420 documents matching your query.

281. Re: [RFI] router RFI (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Mon, 04 Mar 2013 13:49:28 -0500
Ethernet cables connected to it. That won't help, of course, with stuff radiated by the box itself. When thinking about problems like this, it helps to think about HOW MUCH suppression is needed. Tho
/archives//html/RFI/2013-03/msg00016.html (8,890 bytes)

282. Re: [RFI] UPS suggestions (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sat, 09 Mar 2013 20:37:22 -0500
This may help some 105/110/120VAC-area readers decide how to handle short-term power needs. I would not expect all but the very most critical equipment to need an online always-on UPS. I am typing on
/archives//html/RFI/2013-03/msg00035.html (9,503 bytes)

283. Re: [RFI] Cree LED Bulbs? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Mon, 11 Mar 2013 21:25:17 -0400
But the converter is still very likely a switch-type converter; modern-day efficiency rules often rule out transformers on account of core losses. Cortland Richmond KA5S ____________________________
/archives//html/RFI/2013-03/msg00054.html (8,579 bytes)

284. Re: [RFI] Cree LED Bulbs? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Mon, 11 Mar 2013 22:21:17 -0400
On 3/11/2013 2125, Cortland Richmond wrote: On 3/11/2013 1952, Mike Ryan wrote: The landscaping lights turn out to be 12 volt AC powered and not 12 volt DC powered. All the suggestions about a car ba
/archives//html/RFI/2013-03/msg00055.html (9,470 bytes)

285. Re: [RFI] Cree LED Bulbs? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Tue, 12 Mar 2013 14:07:53 -0400
I went to the Cree Web page where I found the below link: You search for *"fcc"* returned *106* results Search For Keyword(s) Entire Site Within Section(s) LED Chips & Materials LED Components & Modu
/archives//html/RFI/2013-03/msg00066.html (12,700 bytes)

286. Re: [RFI] buying a AC adapter (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Fri, 26 Apr 2013 19:57:40 -0400 (GMT-04:00)
Efficiency rules now in effect have resulted in almost all new "wall-warts" being switchers. Cortland KA5S _______________________________________________ RFI mailing list RFI@contesting.com http://l
/archives//html/RFI/2013-04/msg00058.html (7,095 bytes)

287. Re: [RFI] Comments on RFI from Ductless Air Conditioning Units? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sun, 12 May 2013 15:43:19 -0400
He may be liable anyway once you point out to him that causing harmful interefence would require you shut down the system(I am not a lawyer nor is this is not legal advice): /Uniform Commercial Code/
/archives//html/RFI/2013-05/msg00026.html (10,881 bytes)

288. Re: [RFI] Comments on RFI from Ductless Air Conditioning Units? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Mon, 13 May 2013 09:24:08 -0400
it is worth remembering that most appliances are exempted from Part B (or A) at 15.103, only having to comply with not causing harmful interference. FCC Knowledge data base I see that new guidance la
/archives//html/RFI/2013-05/msg00039.html (10,802 bytes)

289. Re: [RFI] re Nineteen Hour Noise (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sun, 02 Jun 2013 07:18:22 -0400
Fliers may not be necessary; I am sure there are some members in law enforcement, and as some may even live in your area, your reports here may already have been enough for search warrants to be issu
/archives//html/RFI/2013-06/msg00003.html (7,885 bytes)

290. Re: [RFI] What the Cellphone Industry Doesn't Want You to Know about Radiation Concerns (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Wed, 12 Jun 2013 20:33:45 -0400
Target. Fire for effect. Five rounds, fuse quick. Over Heh! Cortland http://depletedcranium.com/devra-davis-refuted/ Devra Davis _______________________________________________ RFI mailing list RFI@c
/archives//html/RFI/2013-06/msg00024.html (8,487 bytes)

291. Re: [RFI] What the Cellphone Industry Doesn't Want You to Know about Radiation Concerns (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sat, 15 Jun 2013 07:30:49 -0400
The opposite: Less RFI and it can be made more cheaply. Cortland KA5S Less RFI and the consumer grade crap we've bought over the years gets overhauled to meet the new spec, thus making listening FUN
/archives//html/RFI/2013-06/msg00034.html (9,586 bytes)

292. Re: [RFI] Charge Pump IC's & RFI? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sat, 29 Jun 2013 01:55:41 -0400
Component parts are not required to meet FCC part 15. Cortland KA5S Ask them which of their designs meets compliance regulations. Kurt _______________________________________________ RFI mailing list
/archives//html/RFI/2013-06/msg00052.html (7,308 bytes)

293. Re: [RFI] KG2V's new RFI rule of thumb... (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sun, 25 Aug 2013 05:53:39 -0400
Anecdote: I was once called to a Ham EMI complaint involving one of my then-employers pole and wire-mounted subscriber equipments; a harmonic of its 1.024 MHz clock was interfering with a 2 meter rep
/archives//html/RFI/2013-08/msg00038.html (8,030 bytes)

294. Re: [RFI] Are newer LG models still RF quiet??? - Washing Machine RFI revisited (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Tue, 24 Sep 2013 12:57:53 -0400
You mean Part 15? You'd be right except... Part 15 is ineffectual because its limits are too high to preclude harmful interference below 30MHz (and some above), especially since interference now is m
/archives//html/RFI/2013-09/msg00046.html (9,022 bytes)

295. Re: [RFI] EMI/RFI AC line filter design info? (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Tue, 24 Sep 2013 16:23:20 -0400
I have spent about 30 years doing EMC engineering, with some of the safety type thrown in, because safety and power line EMC filtering cannot be separated. We Amateur Radio operators are perhaps uniq
/archives//html/RFI/2013-09/msg00048.html (10,317 bytes)

296. Re: [RFI] Samsung isn't completely RF quiet (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Tue, 24 Sep 2013 18:48:21 -0400
Mel, I'm not a lawyer and this is not legal advice. Read Part 15, and your state laws regarding a seller's implied warranty of serviceability. According to Part 15, harmful intereference is a conditi
/archives//html/RFI/2013-09/msg00054.html (8,654 bytes)

297. Re: [RFI] Deja BUZZZ.. vu (score: 1)
Author: Cortland Richmond <ka5s@earthlink.net>
Date: Sat, 28 Sep 2013 08:24:26 -0400
And even building a filter for him could be a crime if it make detecting the activity harder. ... "aiding and abetting in manufacture of marijuana in violation of 21 U.S.C. Secs. 841(a)(1), 841(b)(1)
/archives//html/RFI/2013-09/msg00095.html (9,663 bytes)

298. Re: [RFI] LG LED TV's (score: 1)
Author: CR <ka5s@earthlink.net>
Date: Sat, 16 Nov 2013 18:35:44 -0500
Donate it to the the Golf Club at WPAFB. I'm SURE their HF station will appreciate it as it deserves. Cortland KA5S Thanks everyone for your comments. Given my 50 inch LG experience, the comments hav
/archives//html/RFI/2013-11/msg00046.html (8,086 bytes)

299. Re: [RFI] Daisychaining Grounding [Was: DigiKeyer II] (score: 1)
Author: CR <ka5s@earthlink.net>
Date: Fri, 20 Dec 2013 09:39:30 -0500
Well, if the objective is to keep all interconnected equipment at the same potential, we want connections some small fraction of a wavelength long. Lead inductance is the problem; EMC Engineer and au
/archives//html/RFI/2013-12/msg00114.html (8,946 bytes)

300. Re: [RFI] DigiKeyer II (score: 1)
Author: CR <ka5s@earthlink.net>
Date: Wed, 01 Jan 2014 22:58:29 -0500
There is an RFI modification for Microkeyer II's below SN 765 that might help. See http://www.microham.com/contents/en-us/d143.html Excerpt: "Those who are experiencing RFI in the microphone circuit
/archives//html/RFI/2014-01/msg00002.html (7,385 bytes)

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