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1. [RFI] s7-s9 noise (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 14 Jan 2003 10:07:39 -0600; It may be code but it's rarely been done that way over the years. bonded _________________________________________________________ That's good to know, but I still would troubleshoot it by temporaril; /archives//html/RFI/2003-01/msg00020.html (7,370 bytes)
2. [RFI] EMI/RFI Bibliography (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Wed, 15 Jan 2003 14:51:43 -0600; There is a couple of omissions from the list. There are a lot of IEEE articles written by Marv Loftness (KB7KK) by I didn't see his book listed: "AC Power Interference Manual" published by Percival P; /archives//html/RFI/2003-01/msg00035.html (7,990 bytes)
3. [RFI] RR crossing lights (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 16 Dec 2002 11:08:29 -0600; I'm waiting to hear back from my railroad contacts on this issue. They have always used DC for signals in the past so the noisey switching supply is not needed. Can't imagine anything that would caus; /archives//html/RFI/2002-12/msg00035.html (7,279 bytes)
4. [RFI] RF resistant TV, DVD, & Surround Sound ? (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Wed, 18 Dec 2002 08:36:48 -0600; Bert, I don't run the legal limit here, but I have run 500w into a vertical directly above the living room where my 27" Panesonic TV is located. No TVI, video or audio rectification even. Nothing. No; /archives//html/RFI/2002-12/msg00038.html (7,788 bytes)
5. [RFI] DFing progress (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Wed, 18 Dec 2002 08:41:56 -0600; What about just adjusting the frequency of the rcvr higher & higher? In addition to being farther away from antenna's resonance, the higher you go in freq, the closer you need to be to the noise sour; /archives//html/RFI/2002-12/msg00039.html (7,749 bytes)
6. [RFI] Home Security System RFI (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 4 Nov 2002 09:29:55 -0600; I'd make the alarm company come out and disconnect the power and back-up battery to determine "for sure" one way orthe other. Then they'll have to resolve the noise problem with the mfr for you. It p; /archives//html/RFI/2002-11/msg00004.html (7,515 bytes)
7. [RFI] DVD/TVI interference (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Wed, 13 Nov 2002 09:16:51 -0600; Sean & Rob make some good points. Being polite is always required. Walk away if voices get raised or you see them getting overly upset while offering to talk about it another time when they can handl; /archives//html/RFI/2002-11/msg00029.html (12,316 bytes)
8. [RFI] Utilities contacted by the FCC (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 26 Nov 2002 12:24:49 -0600; Here's a question for some of you guys that've dealt with utilities and power line noise problems. I'm wondering if anyone on the list knows of a utility that has been contacted by the FCC regarding; /archives//html/RFI/2002-11/msg00041.html (6,623 bytes)
9. [RFI] Sony TV Noise Generator (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 21 Oct 2002 08:54:01 -0500; My advice: SELL IT! If it's new, take it back. And try a Panasonic. My moderately priced (~$300) Panasonic is clean as a whistle and doesn't even pick up RFI. I only have an AC surge suppressor on my; /archives//html/RFI/2002-10/msg00026.html (9,318 bytes)
10. [RFI] Sony TV Noise Generator (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 21 Oct 2002 11:19:41 -0500; I had the same experience with the TV shops as Peter. All they could do is "repair" the power supply back to factory specs, which still left it very noisy. The had NO CLUE about RF emissions or how t; /archives//html/RFI/2002-10/msg00029.html (13,561 bytes)
11. [RFI] No Complaints, No Problem! (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 21 Oct 2002 11:41:53 -0500; Cortland's got a point, but... I filed a complaint 10 years ago with the EIA and another mfr assoc., but the FCC told me they weren't interested and no longer handle TVI complaints (either to or from; /archives//html/RFI/2002-10/msg00031.html (8,753 bytes)
12. [RFI] Noise Canceller vs DSP filter (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 21 Oct 2002 15:23:57 -0500; The lower you go in frequency the less the distance between your ant. and the lines has a preventive effect. Also, at lower frequencies, you start rxing noise standing waves on the power lines. -- Wh; /archives//html/RFI/2002-10/msg00036.html (9,119 bytes)
13. [RFI] LED Traffic Light RFI (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Fri, 27 Sep 2002 14:37:44 -0500; YES! I posted a similar question here last Dec. We started having problems with these LED lights in Omaha, NE last year, and the traffic engineer laughed at first when I called to let them know about; /archives//html/RFI/2002-09/msg00017.html (8,813 bytes)
14. [RFI] Computer RFI problem (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 6 Aug 2002 08:29:59 -0500; This makes the most sense to me as well. As long as the antenna system is properly grounded (RF & safety-wise) and the shack has a proper single-point ground system, then messing around at the anten; /archives//html/RFI/2002-08/msg00011.html (9,940 bytes)
15. [RFI] Computer RFI problem (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 6 Aug 2002 14:49:23 -0500; Rob, This is exactly the way we have mounted 7 out of 9 of our 800 Mhz colinear verticals on our 500 foot towers here in Nebraska. The reason? Lightning protection/suppression. Before I came along a; /archives//html/RFI/2002-08/msg00015.html (10,047 bytes)
16. [RFI] Electric meter RFI (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 19 Aug 2002 09:23:23 -0500; I'm curious--Who makes it? You could contact the manufacturer to let them know, but I'd let the power company know about it for sure. Could be that it's improperly installed. If so, it might be an e; /archives//html/RFI/2002-08/msg00039.html (6,954 bytes)
17. [RFI] Nighthawk CO2 Detector (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Mon, 19 Aug 2002 09:34:08 -0500; If the signal is coupled to the line in differential mode, then this might work although in in-line coil would work better; but usually it's induced common mode onto the line. If it's common mode, t; /archives//html/RFI/2002-08/msg00040.html (8,057 bytes)
18. [RFI] Broad band Cable Modem (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 4 Jun 2002 08:58:58 -0500; I don't have much experience with these, but I'm guessing the AC power wall wart that most of these use needs a ferrite choke on the line feeding power to the modem. If that doesn't dure it, also try; /archives//html/RFI/2002-06/msg00012.html (8,144 bytes)
19. [RFI] Locating Noise - Radiated or Conducted and then radiated (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 4 Jun 2002 09:16:39 -0500; The only way I know of to know for sure if the noise is direct radiation or re-radiation of conducted noise is to use an ultrasonic detector to test for direct noise. You'll only pick up noise from a; /archives//html/RFI/2002-06/msg00013.html (12,937 bytes)
20. [RFI] M&S Systems intercom RFI where to start (score: 1): Author: eedwards@oppd.com (EDWARDS, EDDIE J); Date: Tue, 4 Jun 2002 11:31:19 -0500; Rob, I'll have to disagree with a slight disclaimer: If RF is coming into the unit VIA the external cabling and then getting rectified or "detected" internally, then the ferrite chokes will probably; /archives//html/RFI/2002-06/msg00014.html (7,729 bytes)

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