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1. [RFI] 200 khz AC line noise (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Sat, 08 Dec 2012 16:59:02 -0500; I've got constant hum/buzz that is strongest in the 150 khz - 250 khz area and is coming from the power lines. It is around S7 on my Drake R8 (with a low noise Wellbrook 1530+). On my noise antenna (; /archives//html/RFI/2012-12/msg00019.html (7,894 bytes)
2. Re: [RFI] 200 khz AC line noise (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Sun, 09 Dec 2012 23:19:50 -0500; The noise is highest at the electric panel in my basement (and at various poles), but my guess is this is because the house is a triplex and we have four electric panels. So far the noise seems to be; /archives//html/RFI/2012-12/msg00030.html (9,420 bytes)
3. Re: [RFI] Telephones and DSL (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Mon, 10 Dec 2012 00:26:06 -0500; I'm not an expert, but my guess is that you use a ferrite material that attenuates low frequencies and enough turns on the telephone cable then it would kill the DSL signal. My understanding is that; /archives//html/RFI/2012-12/msg00031.html (8,924 bytes)
4. Re: [RFI] 200 khz AC line noise (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Mon, 10 Dec 2012 01:02:02 -0500; I just bought the house and it is true that the wiring is a total mess (no ground, hot and neutral reversals). We had an electrician rewire the third floor (we had knob and tube wiring in the attic),; /archives//html/RFI/2012-12/msg00033.html (10,087 bytes)
5. [RFI] Screenshots of a wideband short pulse (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Thu, 13 Dec 2012 17:39:05 -0500; I've got a wideband short burst noise. It is very short - maybe 1/20th of a second. It affects everything from roughly 0 to 20 mhz. It is weaker on the higher frequencies and dies out around 20 mhz.; /archives//html/RFI/2012-12/msg00050.html (8,750 bytes)
6. Re: [RFI] Screenshots of a wideband short pulse (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Thu, 13 Dec 2012 23:20:34 -0500; Cortland, What do you mean? Do you want to know how much time goes by on the vertical axis? It takes about 25 seconds for the spectrum to scroll by when it is probably 400 pixels tall - so 16 pixels; /archives//html/RFI/2012-12/msg00055.html (8,161 bytes)
7. Re: [RFI] 160M/Modem problem (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Tue, 18 Dec 2012 00:09:19 -0500; Does anyone have experience using Cat 6 to reduce noise? I recently bought some Cat 6 cables as my understanding is that they've got more shielding. Aaron Rick, N6PE _________________________________; /archives//html/RFI/2012-12/msg00059.html (6,986 bytes)
8. Re: [RFI] 160M/Modem problem (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Tue, 18 Dec 2012 19:17:53 -0500; It isn't default, but I think there is shielded Cat 6. This one is called Cat 6a. Screened Shielded Twisted Pair http://www.amazon.com/Cable-Matters-Screened-Shielded-Snagless/dp/B004NPOPWW/ref=sr_1_; /archives//html/RFI/2012-12/msg00067.html (8,814 bytes)
9. [RFI] Putting Toroids on the Service Lines (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Mon, 28 Jan 2013 17:12:46 -0500; How crazy of an idea is it to put toroids on the incoming service AC lines? I've got the service line running through my property from across the street. It runs up and down the backyards. So I'm fee; /archives//html/RFI/2013-01/msg00142.html (8,176 bytes)
10. [RFI] getting a solar power inverter - recommendations? (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Fri, 01 Feb 2013 01:51:51 -0500; I'm hoping to install solar panels on the roof (probably 4 kw). I'm wondering if there are any recommendations for a good low-emi inverter? Is it feasible to have a low-emi inverter or modify it to b; /archives//html/RFI/2013-02/msg00000.html (6,162 bytes)
11. [RFI] EMI solution - ethernet cord (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Tue, 05 Feb 2013 18:51:02 -0500; I tracked down a source of EMI to an incoming ethernet cord. It appears that the EMI came from the router (a terrible EMI producer) into my computer and then possibly via the USB cable into the QS1R.; /archives//html/RFI/2013-02/msg00008.html (7,881 bytes)
12. [RFI] EMI solution - ethernet cord (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Tue, 05 Feb 2013 18:51:23 -0500; I tracked down a source of EMI to an incoming ethernet cord. It appears that the EMI came from the router (a terrible EMI producer) into my computer and then possibly via the USB cable into the QS1R.; /archives//html/RFI/2013-02/msg00009.html (7,392 bytes)
13. Re: [RFI] Power strip filtering & protection (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Fri, 08 Mar 2013 18:40:45 -0500; I'm using two Triplite Isobars - probably somewhat similar to the Belkins (they say 40-80 db). They filter out some of the RFI hash that I was getting on the AC line, but I don't think they get every; /archives//html/RFI/2013-03/msg00031.html (7,840 bytes)
14. Re: [RFI] Cree LED Bulbs? (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Sun, 10 Mar 2013 16:32:44 -0400; I bought some cheap LED bulbs on ebay which range from bad RFI to horrible RFI. So while they were cheap (maybe as low as $6), I recommend staying away from Ebay. They also produce less light than ad; /archives//html/RFI/2013-03/msg00038.html (8,061 bytes)
15. Re: [RFI] Cree LED Bulbs? (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Sun, 31 Mar 2013 16:43:57 -0400; I skimmed most of the thread on the Cree LED bulbs. I didn't catch the conclusion -- were they bad RFI producers or not? ... I bought a bunch of LED bulbs on Ebay which are terrible RFI producers. I; /archives//html/RFI/2013-03/msg00151.html (9,817 bytes)
16. [RFI] When AC filtering actually makes it worse (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Mon, 22 Apr 2013 15:17:08 -0400; I'm constantly learning new things about RFI in my efforts to improve my noise floor. I've got AC power line noise - probably in the house wires and power lines all around the neighborhood. Recently; /archives//html/RFI/2013-04/msg00013.html (7,895 bytes)
17. [RFI] Shielding a ground wire (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Thu, 25 Apr 2013 22:54:29 -0400; Does it ever make sense to shield a ground wire? Or is this a silly idea? I'm thinking of trying running coax to my ground rod instead of copper wire. The copper wire is picking up tons of RFI. Aaron; /archives//html/RFI/2013-04/msg00046.html (6,485 bytes)
18. Re: [RFI] Shielding a ground wire (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Thu, 25 Apr 2013 23:33:21 -0400; The ground wire is getting RFI because it's all over the house's internal AC wiring. Side note: I haven't yet tracked down any local noise sources because I rent out two apartments and I want to have; /archives//html/RFI/2013-04/msg00049.html (7,818 bytes)
19. [RFI] buying a AC adapter (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Fri, 26 Apr 2013 19:29:47 -0400; What should I look for in an AC adapter for low RFI? I know that switched adapters tend to be bad. However, I also used to have a bad linear adapter cause RFI directly to a shortwave radio that was p; /archives//html/RFI/2013-04/msg00056.html (7,342 bytes)
20. Re: [RFI] re Nineteen Hour Noise (score: 1): Author: Aaron Kreider <aaron@campusactivism.org>; Date: Sat, 01 Jun 2013 16:55:21 -0400; I'd put up polite posters (or flyers). To whomever is running a grow-op - please fix your RFI problem (provide a website link to how to use torroids - maybe with a nice tear sheet) - or I'll track yo; /archives//html/RFI/2013-06/msg00001.html (8,060 bytes)

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