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Total 69 documents matching your query.

41. Re: [RFI] Electric company problem (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 10 Dec 2005 15:20:09 -0600
Dave, If you file a complaint with the FCC and haven't already contacted the ARRL, the FCC will just send you there to start before they'll get involved. It is true that LV distribution can sometimes
/archives//html/RFI/2005-12/msg00031.html (12,401 bytes)

42. Re: [RFI] Electric company problem (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 10 Dec 2005 18:23:54 -0600
All we need is more bad press about hams like this to make it into the papers, and BPL utilities will make us look really bad and have easier going. Gee, I wonder if that guy who gave me such a hard
/archives//html/RFI/2005-12/msg00034.html (9,206 bytes)

43. Re: [RFI] Electric company problem (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sun, 11 Dec 2005 08:52:07 -0600
Tom, Do you live in a rural area or sparse suburb? Normally, in urban or older city locations, you'd be very lucky to have noise from only one direction. There's almost always dozens of sources in th
/archives//html/RFI/2005-12/msg00044.html (12,137 bytes)

44. Re: [RFI] Touch Lamp and 2m (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sun, 25 Dec 2005 22:09:48 -0600
Many do generate noise, but not all of them do. Some just pick-up RF and switch accrodingly, others don't. It's really hit & miss which ones do what. Like Jim said, use ferrites as close to the base
/archives//html/RFI/2005-12/msg00074.html (7,994 bytes)

45. Re: [RFI] Monitor RFI (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sun, 1 Jan 2006 12:57:58 -0600
Glenn, There are both analog and digital flat screens as well as CRTs. So they caome in all flavors. I have an HP vs17 analog LCD monitor. Have yet to find any noise anywhere from it. The ones I've h
/archives//html/RFI/2006-01/msg00001.html (7,702 bytes)

46. Re: [RFI] Telephone RFI (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Wed, 25 Jan 2006 10:59:53 -0600
This sounds like it was one of those "princess" style trim-line phones with all the electronics in the handset. In these cases the filter must be as close to the handset as possible since that's wher
/archives//html/RFI/2006-01/msg00108.html (7,446 bytes)

47. Re: [RFI] RFI Direction Finding (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Fri, 17 Feb 2006 20:18:52 -0600
The fact that you cannot rcv it at VHF indicates the source is some distance away from your station. It's either being conducted via lines to your vicinity or it's just far enough away to be out-of-r
/archives//html/RFI/2006-02/msg00006.html (8,907 bytes)

48. Re: [RFI] RFI Direction Finding (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 18 Feb 2006 08:33:49 -0600
No, it does not make that assumption at all. Not sure where you got that from. It makes the assumption that the noise travels FARTHER from the source on lower freqs than at higher freqs. You must be
/archives//html/RFI/2006-02/msg00010.html (8,455 bytes)

49. Re: [RFI] RFI Direction Finding (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 18 Feb 2006 08:50:00 -0600
The FM broadcast wouldn't be affect on an FM radio since noise is "Amplitude" in nature. FM rcvrs won't pick them up (usually, although some rcvrs may). Most powerline noise sources, when you are in
/archives//html/RFI/2006-02/msg00011.html (9,011 bytes)

50. Re: [RFI] RFI Direction Finding (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 18 Feb 2006 12:29:15 -0600
Jim, This has drifted far off from where the original question was, which was how to make/use a loop on 40 mtrs to track noise. I was simply giving some "general" guidelines from my experience and th
/archives//html/RFI/2006-02/msg00013.html (11,593 bytes)

51. Re: [RFI] Question on HF loop for tracking line noise (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sun, 19 Feb 2006 19:20:58 -0600
That's why, as I mentioned previously, one of the guidelines in the RFI books and followed by good RI investigators is to track the noise at the highest freq at which the noise can be rcvd moving hig
/archives//html/RFI/2006-02/msg00018.html (9,585 bytes)

52. Re: [RFI] Fw: cell phone interference on airplanes (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Wed, 1 Mar 2006 22:02:31 -0600
On the three docu-dramas/documentaries I've seen (History Channel, A&E Network, and Discovery Channel) showed at least two passengers who used their cell phones at various times: Tom Burnett and Mark
/archives//html/RFI/2006-03/msg00003.html (9,438 bytes)

53. Re: [RFI] Fw: cell phone interference on airplanes (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Thu, 2 Mar 2006 20:59:26 -0600
Jim, You're getting very Pedantic again. :-) I think everything you say is probably correct, but mostly applies to Metropolitan areas with short towers located close together, not in rural areas with
/archives//html/RFI/2006-03/msg00011.html (13,582 bytes)

54. Re: [RFI] Fw: cell phone interference on airplanes (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 4 Mar 2006 11:04:29 -0600
Don, I think David was trying to imply that the telephone usage may've caused the crash. There is absolutely no evidence of this nor that it was shot down--nearest F16 was over 150 miles away. There
/archives//html/RFI/2006-03/msg00022.html (10,562 bytes)

55. Re: [RFI] Fw: cell phone interference on airplanes (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sat, 4 Mar 2006 19:58:45 -0600
My apologies to David if I misread his statements. You're correct. It could've meant many things. It's just there's so many "theories" out there with no evidence to support them, and so much evidence
/archives//html/RFI/2006-03/msg00024.html (9,902 bytes)

56. Re: [RFI] Touch Lamps (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Tue, 25 Apr 2006 17:37:05 -0500
That bandwidth sounds a little large for typical Taiwan non-UL listed touch lamps, so maybe it's something else. I have found most lamps to be around 40-50Khz wide every 170-180Khz (oscillator freq).
/archives//html/RFI/2006-04/msg00021.html (9,143 bytes)

57. Re: [RFI] grounding your ham equipment (score: 1)
Author: "Ed -K0iL" <eedwards@TCONL.COM>
Date: Sat, 29 Jul 2006 12:47:32 -0500
Lot's of good responses, and I also highly recommend the Polyphaser web site and the technical papers sections. They have one paper just for ham shacks. Polyphaser equipment is used extensively by th
/archives//html/RFI/2006-07/msg00008.html (9,005 bytes)

58. Re: [RFI] grounding your ham equipment (score: 1)
Author: "Ed -K0iL" <eedwards@tconl.com>
Date: Sun, 30 Jul 2006 10:00:22 -0500
Only if I could've had a look at the point everything was grounded to and the connections to each rod. If it was poorly maintained and full of corrosion, yes, I would've learned the importance of reg
/archives//html/RFI/2006-07/msg00022.html (8,599 bytes)

59. Re: [RFI] Smart Meter Lawsuit in Texas (score: 1)
Author: "Ed K0iL" <eddieedwards@tconl.com>
Date: Sun, 26 Feb 2012 22:04:24 -0600
Jim, Each utility will probably be doing slightly different things. Check your utilities web site for details. In my part of Nebraska, the plan is to cycle the customers' air conditioning on/off in 1
/archives//html/RFI/2012-02/msg00019.html (9,859 bytes)

60. Re: [RFI] Single-point grounding (score: 1)
Author: "Ed K0iL" <eddieedwards@tconl.com>
Date: Sun, 1 Jul 2012 15:16:44 -0500
To keep impedance/inductance as low as possible, I've heard that all bonding connections should not only be short, but also should not have any sharp bends or turns. Nothing tighter than an 8"-10" ra
/archives//html/RFI/2012-07/msg00008.html (8,544 bytes)

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