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Total 58 documents matching your query.

41. Re: [RFI] Working with the Power Company (was: Privileged treatment) (score: 1)
Author: Jimk8mr@aol.com
Date: Thu, 11 Feb 2010 13:05:26 EST
My favorite story concerns a problem I encountered a few years ago. A quarter of a mile away, at a bend in the road, a side mounted residential high voltage line insulator had broken and the high vol
/archives//html/RFI/2010-02/msg00043.html (9,875 bytes)

42. [RFI] Snow and Power Lines (score: 1)
Author: Jimk8mr@aol.com
Date: Tue, 16 Feb 2010 15:24:03 EST
It is quite common at my QTH to have a light snowfall result in lots of power line QRN. After the snow stops, within a day or so things are basically back to normal, even though one can see snow layi
/archives//html/RFI/2010-02/msg00080.html (6,762 bytes)

43. Re: [RFI] Snow and Power Lines (score: 1)
Author: Jimk8mr@aol.com
Date: Tue, 16 Feb 2010 22:00:05 EST
I have to ask...Are you *sure* the noise you hear isn't just precipitation static? == Yes, I'm sure. On occasion, I get the real snow static, a white noise effect from any direction. What I am talkin
/archives//html/RFI/2010-02/msg00086.html (7,900 bytes)

44. Re: [RFI] Handheld Rx for Topband (score: 1)
Author: Jimk8mr@aol.com
Date: Fri, 12 Mar 2010 11:10:15 EST
I've used an Icom IC-R10 for following noise, and have had good luck with it. I assume current versions of the radio would be fine. Keep in mind that with the rubber duck antenna provided you won't h
/archives//html/RFI/2010-03/msg00039.html (8,390 bytes)

45. [RFI] Ultrasonic Line Noise Detectors (score: 1)
Author: Jimk8mr@aol.com
Date: Mon, 26 Apr 2010 18:49:28 EDT
In the May issue of CQ my eye caught an ad for an Ultrasonic Receiver Kit (page 113): http://www.midnightscience.com/ultrasonics.html This appears to be essentially the entire receiver portion of the
/archives//html/RFI/2010-04/msg00054.html (6,779 bytes)

46. Re: [RFI] Bulb rumors. (score: 1)
Author: Jimk8mr@aol.com
Date: Mon, 29 Nov 2010 18:59:35 EST
Last week I was doing some RFI detective work, focusing on 15 meters using an IC-R10 strapped to the end of a 4 foot pole. We did find the source of the RFI (quite a different story, which I may post
/archives//html/RFI/2010-11/msg00122.html (9,304 bytes)

47. Re: [RFI] CFL Bulbs that are OK! (score: 1)
Author: Jimk8mr@aol.com
Date: Thu, 2 Dec 2010 10:08:53 EST
I have two outdoor lights by my garage, located under an overhang but otherwise with just a decorative glass enclosure, not well sealed. It's on a motion sensor, so it does get cycled on by passing d
/archives//html/RFI/2010-12/msg00003.html (7,655 bytes)

48. Re: [RFI] Excellent RFI notes by ON4WW (score: 1)
Author: Jimk8mr@aol.com
Date: Mon, 27 Dec 2010 19:14:34 EST
In the spirit of passing on stories of odd sources of RFI, here is one that was recently solved at K8AZ: For several years we had intermittent problems of interstation interference at Tom's Multiop c
/archives//html/RFI/2010-12/msg00156.html (9,512 bytes)

49. Re: [RFI] Low pass filter opinions (score: 1)
Author: Jimk8mr@aol.com
Date: Tue, 11 Jan 2011 21:21:47 EST
Do you actually have TVI to over the air TV stations? Since the digital transition in 2009, there are extremely few low VHF TV stations (CH 2-6, 54-88 MHz) on the air. Maybe 25% of the stations are o
/archives//html/RFI/2011-01/msg00101.html (8,033 bytes)

50. Re: [RFI] Nondescript Broadband Noise (score: 1)
Author: Jimk8mr@aol.com
Date: Wed, 19 Jan 2011 14:44:53 EST
Are there any UPS(s) in the house powering devices that remains on even though the main breaker is opened? 73 - Jim K8MR In a message dated 1/19/2011 1:45:35 P.M. Eastern Standard Time, k4ar@arrl.net
/archives//html/RFI/2011-01/msg00166.html (7,683 bytes)

51. [RFI] Power Lines & Snow (score: 1)
Author: Jimk8mr@aol.com
Date: Sat, 22 Jan 2011 21:09:16 EST
I'm suffering through the ARRL VHF SS with lots of power line noise from various directions. We've having a light snow which always brings out the noise. My question: is such noise, which shows up wi
/archives//html/RFI/2011-01/msg00180.html (7,092 bytes)

52. Re: [RFI] CFLs (score: 1)
Author: Jimk8mr@aol.com
Date: Wed, 9 Mar 2011 19:38:36 EST
The energy saving depends on whether you're heating, cooling, or doing neither. The waste heat of incandescent lighting is not wasted if you are heating the room anyway. If you're running the A/C, th
/archives//html/RFI/2011-03/msg00025.html (6,782 bytes)

53. Re: [RFI] Interesting Noise (score: 1)
Author: Jimk8mr@aol.com
Date: Thu, 10 Mar 2011 22:46:51 EST
Tell us more about the noise: does it have a buzz to it (60/120 Hz), or is it white noise? If the former, some sort of power line related noise. Hard to troubleshoot if it only shows up once every tw
/archives//html/RFI/2011-03/msg00039.html (8,482 bytes)

54. Re: [RFI] FW: Topband: Exciting noise sources (Tim Duffy K3LR) (score: 1)
Author: Jimk8mr@aol.com
Date: Tue, 29 Mar 2011 16:37:10 EDT
I have used this technique, with the cheaper Icom IC-R10 handheld scanner. I program into a memory bank ham frequencies for each bank, 160 though 1296 MHz, AM detection. With one knob I can then QSY
/archives//html/RFI/2011-03/msg00138.html (12,623 bytes)

55. Re: [RFI] Smart Meter Lawsuit in Texas (score: 1)
Author: Jimk8mr@aol.com
Date: Sun, 26 Feb 2012 16:49:05 -0500 (EST)
Of course this is nutty. But keep in mind, this is coming from the same people who wear tin foil hats. AFIK there is no privacy invasion here. The communication is one way - to turn off certain appli
/archives//html/RFI/2012-02/msg00011.html (7,432 bytes)

56. Re: [RFI] History Channel creeped across 6 meters (score: 1)
Author: Jimk8mr@aol.com
Date: Sun, 3 Jun 2012 11:05:10 -0400 (EDT)
Hmm... FM is legal if not proper in that part of the six meter band. Could be an opportunity for some fun.... It comes to mind a story of unknown veracity concerning a local high power VHF guy (now S
/archives//html/RFI/2012-06/msg00023.html (7,816 bytes)

57. Re: [RFI] AT&T U-Verse RFI? (score: 1)
Author: Jimk8mr@aol.com
Date: Tue, 18 Dec 2012 16:36:05 -0500 (EST)
Hi, I have Uverse here, with the two wire drop. I have not spent a lot of time searching for incoming RFI, though I do note various odd occasional garbage signals that could be coming from almost any
/archives//html/RFI/2012-12/msg00064.html (7,601 bytes)

58. Re: [RFI] Ultrasonic Dish (score: 1)
Author: Jimk8mr@aol.com
Date: Wed, 2 Jan 2013 17:00:50 -0500 (EST)
In most cases I've experienced, no, you will not be able to see arcing. The cases where you can see arcing, you often can also hear it with your ears if things are otherwise acoustically quiet in the
/archives//html/RFI/2013-01/msg00020.html (9,253 bytes)


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