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Total 139 documents matching your query.

21. [RFI] Cable TV Interference (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Thu, 6 Dec 2001 12:49:48 -0600
Peter, I have fought the battle before, in the Chicago suburban area, prior to coming out here to Iowa. As a point of interest, I imagine that if you tune your ham FM receiver up to 149.750, you will
/archives//html/RFI/2001-12/msg00010.html (14,464 bytes)

22. [RFI] 433 Mhz Wireless Thermometer (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Tue, 18 Dec 2001 08:12:15 -0600
Charles, I believe your posting is the first I have seen in which interference TO the device, from amateur radio transmitting, is indicated. Being both a weak signal op (SSB and CW) and FM op on 70 c
/archives//html/RFI/2001-12/msg00043.html (9,853 bytes)

23. [RFI] RE: Other 70 cm signals (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Tue, 18 Dec 2001 10:38:04 -0600
Peter, The other signals you have heard in the 70 cm band seem to be similar in description to signals heard here in the Upper Midwest shortly after 9-11. A number of us in a wide area (large portion
/archives//html/RFI/2001-12/msg00048.html (8,079 bytes)

24. [RFI] LCD Monitor RFI (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Mon, 19 Nov 2001 09:25:00 -0600
Pete and Group, Alas, even though LCD displays lack many circuits that are required in CRT-based systems, the bottom line is LCD displays, in and of themselves, are not a panacea for computer display
/archives//html/RFI/2001-11/msg00007.html (11,051 bytes)

25. [RFI] USB cable modem and 10M (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Wed, 28 Nov 2001 08:44:56 -0600
Charles, This might sound odd, but it seems to me that you could have a cable in your modem system that just happens to be resonant on 10 meters. Multiple beads might help; however, one way to find o
/archives//html/RFI/2001-11/msg00026.html (8,982 bytes)

26. [RFI] Cable Modem Interference (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Thu, 29 Nov 2001 08:14:45 -0600
Phil, Yes, meeting FCC specs still leaves a considerable emissions spectrum when talking sensitive receivers. A couple of checks might be worthwile. For one, disconnect the antenna from your receiver
/archives//html/RFI/2001-11/msg00036.html (9,980 bytes)

27. [RFI] Filtered connectors for video cable (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Thu, 25 Oct 2001 10:33:30 -0500
Pete and All, Spectrum Control, as well as AMP, Amphenol, and other makers of filtered Sub-D connectors do have excellent web sites with good tech info on the connectors. I worked with products from
/archives//html/RFI/2001-10/msg00014.html (11,376 bytes)

28. [RFI] Sony WEGA (and other similar) RFI Problems (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Tue, 4 Sep 2001 11:48:25 -0500
All, This has become a very interesting thread. I would like to add a comment about one more aspect of EMI control: separation of source and victim(s). I noticed that Peter, WB3FSR, mentioned he has
/archives//html/RFI/2001-09/msg00013.html (14,743 bytes)

29. [RFI] Rcvr burn-out from HV field (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Tue, 4 Sep 2001 16:28:37 -0500
All, Just a brief note about a bad experience I had on August 19th, with the hope of reducing the chances that someone else will have this happen: I operate an Alinco DR-590 dual band (2m and 70cm) F
/archives//html/RFI/2001-09/msg00014.html (10,962 bytes)

30. [RFI] CNN.com - Internet access via power lines reborn in Europe- August 28, 2001 (score: 1)
Author: dgsvetan@rockwellcollins.com (dgsvetan@rockwellcollins.com)
Date: Fri, 31 Aug 2001 15:04:49 -0500
A careful reading of the article does say that the transistion to conventional cable does occur at the local sub-station. It has been many years since I have been in Europe, but I do recall that the
/archives//html/RFI/2001-08/msg00012.html (9,187 bytes)

31. [RFI] Attention 20m fans: Something New for Your Listening Pleasure - Maybe (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Tue, 26 Aug 2003 08:31:06 -0500
Other than the justifiable flood of BPL messages of late, I do recall some recent posts possibly involving medical equipment causing 20m interference. As was indicated at that time, there is a design
/archives//html/RFI/2003-08/msg00153.html (7,680 bytes)

32. RE: [RFI] Attention 20m fans: Something New for Your ListeningPleasure - Maybe (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Tue, 26 Aug 2003 09:18:30 -0500
Cortland, Glad you found it interesting. I agree about not hearing the chips themselves - their range is much too limited. My point was the "exciters" used to write and read with these chips. THose a
/archives//html/RFI/2003-08/msg00155.html (10,638 bytes)

33. Re: [RFI] NTIA BPL measurement procedures (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Tue, 26 Aug 2003 11:37:58 -0500
Stephanie, I have been on travel and just read your posting. My guess is that they are thinking in terms of tactical communications. Humvees, tanks, personnel carriers, and the like use whip antennas
/archives//html/RFI/2003-08/msg00157.html (11,882 bytes)

34. Re: [RFI] high noise level... (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Thu, 11 Sep 2003 15:35:28 -0500
Jim and List Members, A sidenote to Jim's comment: at least one vendor makes a SHIELDED rotator cable. Yes, the usual 8 conductors, with 2 of them over-sized, all enclosed with a shield braid and UV-
/archives//html/RFI/2003-09/msg00014.html (11,886 bytes)

35. [RFI] Possible Receiver Improvements (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Fri, 14 Nov 2003 08:19:48 -0600
Reflector users, I just saw this article and link in this morning's edition of EE Times Today, an industry newsletter. Although there is little technical meat in the linked article, the point here is
/archives//html/RFI/2003-11/msg00032.html (6,987 bytes)

36. Re: [RFI] Wirless intercoms (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Wed, 10 Dec 2003 16:52:55 -0600
Pete, I first used the line-operated FM carrier intercoms around 25 years ago, with good success at that time. That was in the Chicago suburbs. I kept the units thru a number of moves and still have
/archives//html/RFI/2003-12/msg00031.html (10,015 bytes)

37. Re: [RFI] shielding question (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Tue, 23 Dec 2003 16:30:23 -0600
Ladies and Gentlemen of this list: I have to toss in a few words alongside Jim's. I am member of the IEEE and the IEEE Standards Activity, IEEE-SA. I am also chair of a standards working group within
/archives//html/RFI/2003-12/msg00081.html (14,336 bytes)

38. [RFI] BPL coming to Cedar Rapids, IA (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Mon, 9 Feb 2004 10:59:21 -0600
I just received word a few days ago that Alliant Energy is planning a trial of BPL in an undisclosed part of Cedar Rapids, IA, sometime this year. No specific dates available, but within the next 3 m
/archives//html/RFI/2004-02/msg00055.html (8,078 bytes)

39. Re: [RFI] Better Balanced BPL story (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Thu, 26 Feb 2004 15:41:46 -0600
Cliff, I have yet to see where economic or political clout, distortions, or mislead wishful thinking has been able to overturn laws of physics. Unfortunately, many people try to do just that, as in t
/archives//html/RFI/2004-02/msg00142.html (9,435 bytes)

40. Re: [RFI] Quiet Shack PC Systems? (score: 1)
Author: <dgsvetan@rockwellcollins.com>
Date: Thu, 18 Mar 2004 10:37:19 -0600
Deni, The fact remains that you could spend a lot of time applying ferrites and by-pass caps, as well as line filters, to many computers and related gadgets, and still have moderate to severe RFI to
/archives//html/RFI/2004-03/msg00070.html (14,226 bytes)


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