Mail Archive Search: <+from:dgsvetan@rockwellcollins.com>

Results:

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

Total 139 documents matching your query.

121. Re: [RFI] RFI Susceptibility of DTV? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 22 Jan 2009 14:19:48 -0600; Jim, I do not have any specific "reference" documents to which I can point you, but you may be interested in two anecdotal experiments I have performed at my QTH. 1. The ice dispenser in my refrigera; /archives//html/RFI/2009-01/msg00164.html (13,010 bytes)
122. Re: [RFI] 2nd harmonic help (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 4 Feb 2009 16:49:08 -0600; Dave and Ken, Good points presented, Dave, but I'd like to look at the problem form a slightly different perspective: dynamic range. Here are the direct numbers: 100 watts out of 746 Pro = +50 dBm Sp; /archives//html/RFI/2009-02/msg00035.html (13,128 bytes)
123. Re: [RFI] 80/160M RFI in neighbor's oven circuitry (PART 2) (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 9 Feb 2009 13:32:48 -0600; Bill, One aspect I have not seen discussed is that of thresholding the problem. By that I mean: at what power level does the oven timer go off when you use your new full size vertical? You know that; /archives//html/RFI/2009-02/msg00078.html (10,072 bytes)
124. Re: [RFI] RFI to a Home Theater System (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 27 Feb 2009 14:22:18 -0600; Ed, One comment regarding the Line Conditioner: Even if the unit actually provides 75 dB common mode rejection at 1 MHz, that all goes away as a useless expense if you do not preserve the "cleaned up; /archives//html/RFI/2009-02/msg00144.html (10,505 bytes)
125. Re: [RFI] Is a Ground-Shortening Switch Better? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 13 Mar 2009 10:04:28 -0500; Andy and Doc, Having been the recipient of a direct hit last summer, I can not emphasize enough the importance of proper grounding techniques and NO unprotected lines into the shack. Doc, I think gro; /archives//html/RFI/2009-03/msg00037.html (11,977 bytes)
126. Re: [RFI] Coaxial Choke (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 15 Apr 2009 15:51:45 -0500; Andy and All, No "science" as such, but I am a big believer in APPLIED technology (which may or may not have "real" science asociated with it. Several years ago, I decided to make a quick and dirty d; /archives//html/RFI/2009-04/msg00051.html (11,185 bytes)
127. Re: [RFI] Mast-mount TV Pre-Amp -- Avoiding RFI & Overload? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 4 Jun 2009 10:00:48 -0500; Doc, I have some similar needs at my QTH. I suggest you try the following: 1. Google up "Winegard" and check out their line of mast mount pre-amps. Look very carefully at the spec sheets, which can b; /archives//html/RFI/2009-06/msg00008.html (12,909 bytes)
128. Re: [RFI] Washer RFI/EMI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 8 Sep 2009 13:45:19 -0500; Peter, Sad to say, but winding toroids and sticking them around will not do anything to eliminate the IBOC crud that you have been hearing. I live near Cedar Rapids, IA, and station WMT, at 600 on th; /archives//html/RFI/2009-09/msg00032.html (10,690 bytes)
129. Re: [RFI] WECS (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 6 Oct 2009 11:16:58 -0500; Bob, A quick list of possible RFI would include static (same as P-static on aircraft), but I would think that can be handled by static dissipaters, also as done on aircraft. From articles I've read,; /archives//html/RFI/2009-10/msg00011.html (10,591 bytes)
130. Re: [RFI] FW: Ignition Noise [Incident: 100111-000562] (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 11 Jan 2010 16:53:23 -0600; Gary, It's no accident, but it is good news. In reality, there are one or more hams employed in the EMC department of most of the major auto makers. I've had the privilege of meeting and knowing many; /archives//html/RFI/2010-01/msg00026.html (12,497 bytes)
131. Re: [RFI] Ferrite Beads from DX Engineering (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Mon, 11 Jan 2010 17:18:29 -0600; Dave, I would say that the recommendation given to you was, in fact, a pretty good starting point. After all, when you consider the nature of the ignition system waveform, and the fact that in many v; /archives//html/RFI/2010-01/msg00029.html (11,876 bytes)
132. Re: [RFI] RFI from Inverter Technology in Split AC Systems? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 17 Feb 2010 15:22:54 -0600; Doc, Years ago, I had a lot of bad experiences with variable speed motor drives, but those were in industrial applications. I know that technology has improved EMC performance in many ways, and any t; /archives//html/RFI/2010-02/msg00098.html (10,326 bytes)
133. Re: [RFI] Handheld Rx for Topband (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 12 Mar 2010 09:38:17 -0600; Graham, First, I'd suggest you check out radio dealers there in the UK to see what they carry in the way of SWL portables. Since you are coming Stateside soon, you may also wish to check out two deal; /archives//html/RFI/2010-03/msg00038.html (9,939 bytes)
134. Re: [RFI] Lessons learned re computer RFI (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Fri, 26 Mar 2010 16:42:07 -0500; Pete, I suspect that the problem is the wide proliferation of IEC connector suppliers out in the world. While the INSIDE dimensions of the connector need to be correct in order for the mating cord co; /archives//html/RFI/2010-03/msg00100.html (8,411 bytes)
135. Re: [RFI] Noisy or Quiet Power Supplies? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 19 Oct 2010 16:28:06 -0500; Howard, Since your use of a quote from my posting on power supplies started the whole ladder line thread, I thought I should weigh in with a few comments. First, we must keep in mind that "lower emis; /archives//html/RFI/2010-10/msg00070.html (14,629 bytes)
136. Re: [RFI] Noisy or Quiet Power Supplies? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 20 Oct 2010 09:45:42 -0500; Paul, Thanks for the reply comments. Your switching configuration is exactly the sort of scheme I had in mind for protecting the station when wire feeders are used. Over the years, I have just seen w; /archives//html/RFI/2010-10/msg00077.html (11,624 bytes)
137. Re: [RFI] RFI from new Hi-efficiency furnace? (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Wed, 27 Oct 2010 16:09:02 -0500; Doc, I have a high efficiency Rheem furnace, going strong for 10 years. The only RFI I get from it is during ignition of the burners ( a burst of "machine gun static" for about 2 seconds). The burst; /archives//html/RFI/2010-10/msg00095.html (10,441 bytes)
138. Re: [RFI] AM radio RFI from 2010 Ford Escape (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Thu, 28 Oct 2010 11:31:35 -0500; Roger, Believe it or not, Ford actually has a comprehensive EMC group within the corporation (as do GM and Chrysler). I worked with a few of their engineers when I was in the RF shielding business in; /archives//html/RFI/2010-10/msg00105.html (12,452 bytes)
139. Re: [RFI] Direct TV DVR problems (score: 1): Author: dgsvetan@rockwellcollins.com; Date: Tue, 2 Nov 2010 14:02:47 -0500; Tom, The multiple suggestions for use of Mix 31 toroids and/or beads are just fine and may very well solve your problems. If not, however, you then need to remember the other 2 aspects of an interfer; /archives//html/RFI/2010-11/msg00008.html (9,209 bytes)

Current List: 121 - 139
Page: [1] [2] [3] [4] [5] [6] [7]