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References: [ +from:dgsvetan@rockwellcollins.com: 139 ]

Total 139 documents matching your query.

101. Re: [RFI] rfi proof smoke detectors? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 14 Jan 2008 11:40:20 -0600; John, Two questions: 1. What band or bands where you using that triggered the old detector? 2. What is the relationship between your antennas and the detector? By that, I mean separation distances (h; /archives//html/RFI/2008-01/msg00043.html (7,299 bytes)
102. Re: [RFI] DirecTV and DishTV (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 15 Jan 2008 11:49:59 -0600; Rick, I think your friend already has the answer to the problem, but does not realize it: the dish system power supply. I can not think of anything within a sat dish system that could or should cause; /archives//html/RFI/2008-01/msg00045.html (7,962 bytes)
103. Re: [RFI] Honda RFI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 17 Jan 2008 17:21:45 -0600; Jim, If you contact someone at Honda with technical knowledge, try to find out what motor type the EPS uses and how it is controlled. In short: is the motor a permanent magnet DC type with brushes, o; /archives//html/RFI/2008-01/msg00047.html (9,401 bytes)
104. Re: [RFI] TV RFI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 28 Jan 2008 17:46:28 -0600; David's comment #2 is VERY important. After all, Rod admits that he got some TVI even before getting the amp. Ergo, increasing the power level with all else being equal, the present situation is not; /archives//html/RFI/2008-01/msg00063.html (12,373 bytes)
105. Re: [RFI] TV RFI - an update (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 13 Feb 2008 10:28:39 -0600; Rod, Jim Brown, K9YC, gave you some excellent input regarding the number of beads needed to obtain useful results in his posting. I'll only add that unless your problems are stemming from SSB operati; /archives//html/RFI/2008-02/msg00017.html (10,282 bytes)
106. Re: [RFI] Evils (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 15 Feb 2008 10:40:20 -0600; Guys, First, those are currently used IFs, and N4ZR had it right about the truly "old" 21 MHz IFs. Believe it or not, I ran across someone using a TV that had a 21 MHz IF as recently as 15 years ago.; /archives//html/RFI/2008-02/msg00038.html (10,905 bytes)
107. Re: [RFI] Help with noise (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 29 Feb 2008 16:08:11 -0600; Michael, A bit more info would be helpful. From what you say, it sounds as if the noise source is either in your shack or close to your antennas. The radio itself seldom picks up much noise, and your; /archives//html/RFI/2008-02/msg00053.html (8,517 bytes)
108. Re: [RFI] Modem PS noise (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 5 Mar 2008 11:29:58 -0600; Note to Rick and All, Placing a bypass cap across the switching transistor of a switch mode power supply is NOT the place to put a cap, as Rick found out. There will be a snubber cap already included; /archives//html/RFI/2008-03/msg00011.html (10,108 bytes)
109. Re: [RFI] Digital TV Problems (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 2 Apr 2008 15:44:17 -0500; Dwight, An interesting problem, especially since I heard recently that some community CATV systems are planning to run digital video on CAT-5 lines around town. That's a truly scary thought. I have h; /archives//html/RFI/2008-04/msg00000.html (8,398 bytes)
110. Re: [RFI] AC Line filters- Direct-Drive Washers (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 4 Apr 2008 13:14:32 -0500; Paul, Sorry to hear about yet another QRN machine. Your experience does lead to some questions, however: 1. Have you determined how the noise is propagated within your house? (ie: Is it ALL power lin; /archives//html/RFI/2008-04/msg00023.html (13,242 bytes)
111. Re: [RFI] TV Converter Boxes & RFI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 22 Apr 2008 17:59:49 -0500; Doc, I understand the issue raised by Dick (his comments below), but those comments apply to the radiated spectrum from the TV transmitters themselves and the effects upon the local areas in which th; /archives//html/RFI/2008-04/msg00039.html (10,661 bytes)
112. Re: [RFI] Router RFI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 28 Apr 2008 11:13:04 -0500; Andy, There are two sources of radiated interference with rouiters: the power supply (usually a switcher), and the actual wiring carrying the Ethernet signals. Eben though Ethernet uses a balanced li; /archives//html/RFI/2008-04/msg00047.html (11,877 bytes)
113. Re: [RFI] Microwave RFI - radiated (?) (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 8 May 2008 12:09:32 -0500; Don, I am trying to figure out WHY your microwave produces RFI. Unless there have been some major changes in microwave design very recently, the commodity status of this device has relegated it to a; /archives//html/RFI/2008-05/msg00005.html (9,346 bytes)
114. Re: [RFI] Microwave RFI - radiated (?) (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 12 May 2008 16:24:38 -0500; Donald, Thanks for the sound file. The interference definitely has a 60 Hz component to it. (That's the raspy buzz from when the oven is on. I agree that you do have a lot of other noise as well.) Si; /archives//html/RFI/2008-05/msg00010.html (11,011 bytes)
115. Re: [RFI] Finding noise source (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 15 Aug 2008 17:21:18 -0500; Yuri, Your noise problem sounds a lot like one that plagued me for most of the past several months. In my case, here are the details: 1. The noise affected 160 thru 40 meters the most, but was audibl; /archives//html/RFI/2008-08/msg00022.html (11,700 bytes)
116. Re: [RFI] FCC Class A& B Regs/ was: Low Voltage Patio Lights (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 11 Sep 2008 10:01:55 -0500; Earl and Jim, Part 18 is for ISM devices, as you know. Included in that group are lighting devices that operate at 13.56 MHz. Surprisingly, I am not aware of any significant QRM problems to 20m ops f; /archives//html/RFI/2008-09/msg00018.html (8,919 bytes)
117. Re: [RFI] Aims 5000 Watt MSW Power Inverter (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 15 Sep 2008 12:08:32 -0500; Doc, That's one monster of a converter! Doc, since you periodically mention various inverters and power supplies in your posts, I presume that you have need for such devices. When considering such de; /archives//html/RFI/2008-09/msg00028.html (12,260 bytes)
118. Re: [RFI] Kenwood TM-D700 (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 29 Oct 2008 11:27:24 -0500; Dave and Hardy, Yes, the sound being heard is the variable AC frequency of the guy's alternator as he drives at different speeds and with varying electrical loads. The simplest cure, in most cases, i; /archives//html/RFI/2008-10/msg00065.html (13,234 bytes)
119. Re: [RFI] Kenwood TM-D700 (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 29 Oct 2008 11:39:20 -0500; Dave, The CorCom is not doing you any good. It has no effect in the range of a few hundred Hz to 2500 Hz, which is roughly the range of the alternator whine. The required series L needs to insert at; /archives//html/RFI/2008-10/msg00067.html (10,682 bytes)
120. Re: [RFI] CFL+surge? (Re: RFI Digest, Vol 73, Issue 22 (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 20 Jan 2009 13:47:01 -0600; Peter, I live in eastern Iowa and had a house built on a hilltop in 2000. The location is rural, I had plans for multiple towers (there are now 3 on the property), and no trees close to the house. Wh; /archives//html/RFI/2009-01/msg00154.html (12,578 bytes)

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