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Total 571 documents matching your query.

61. [RFI] LED streetlight noise. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 1 May 2011 21:22:13 -0700
I was passing through town last night an found a failing LED streetlamp, one of the few LED models I've seen. Half of it was flashing about once per second. I don't have any Ham equipment in my truck
/archives//html/RFI/2011-05/msg00002.html (7,347 bytes)

62. Re: [RFI] LED streetlight noise. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 2 May 2011 18:11:53 -0700
In my old truck I was constantly monitoring Class C transmissions on HF, USB, pre-amp, no squelch, so I could always hear the slightest increase in noise, for example the Toyota hybrids, bloody thin
/archives//html/RFI/2011-05/msg00007.html (8,187 bytes)

63. Re: [RFI] LED streetlight noise. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 3 May 2011 17:46:35 -0700
I haven't seen those. Here, the lights are independant, 220 VAC, photoswitch on top, ballast/power supply in the head with the light and switch. Kurt _______________________________________________
/archives//html/RFI/2011-05/msg00021.html (8,235 bytes)

64. Re: [RFI] LED streetlight noise. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 3 May 2011 20:27:58 -0700
"I believe the OP was referring to traffic signals and not actually street lighting." OK. I haven't noticed any noise from passing under streetlights, passing near the control boxes, or waiting next
/archives//html/RFI/2011-05/msg00025.html (8,782 bytes)

65. Re: [RFI] LED streetlight noise. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Wed, 4 May 2011 09:34:59 -0700
"try AM; the traffic lights raise havac on these freqs. I cannot use my HF rig if stopped at the light " I monitor HF in SSB when driving, if I hear an interesting signal or increase in noise, I swit
/archives//html/RFI/2011-05/msg00031.html (8,682 bytes)

66. Re: [RFI] Traffic Light RFI; Also Diesel-powered Vehicles; Also Other RFI While On The Road (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Wed, 4 May 2011 16:42:47 -0700
"I have contacted Arizona Power Supply/Service on this but APS has been completely unresponsive. And I'm not about to challenge the titanicPalo Verde Nuclear Power structure..." Call the FCC and PUC
/archives//html/RFI/2011-05/msg00033.html (7,404 bytes)

67. Re: [RFI] Traffic Light RFI; Also Diesel-powered Vehicles; Also Other RFI While On The Road Re: RFI Digest, Vol 100, Issue 6 (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Fri, 6 May 2011 17:22:16 -0700
"Exception: if I find APS RFI suddenly severely interferes with my personal ham radio, electronics, and otherwise disrupts my finally content and complacent activities, you can bet my Activist/Agitat
/archives//html/RFI/2011-05/msg00035.html (7,737 bytes)

68. [RFI] Parts of Part 15. (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sat, 7 May 2011 20:50:21 -0700
Have him read the Part 15 notice on the back of most electronic devices, read to the end: 15.5 General conditions of operation. (a) Persons operating intentional or unintentional radiators shall not
/archives//html/RFI/2011-05/msg00039.html (9,686 bytes)

69. Re: [RFI] Horrific Ugly Noise Found and stopped... (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 8 May 2011 16:31:37 -0700
Willful and malicious jamming of a licensed radio service used for emergencies and preservation of life and property during natural disasters and civil unrest??? Contact the FCC. Kurt ______________
/archives//html/RFI/2011-05/msg00049.html (8,462 bytes)

70. Re: [RFI] Power Supply - Noise Frequency Adjust? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 22 May 2011 20:55:16 -0700
Wondering why they produced a POS so bad they had to build in a way to adjust the annoyance rather than just do it right... Kurt _______________________________________________ RFI mailing list RFI@
/archives//html/RFI/2011-05/msg00079.html (7,100 bytes)

71. Re: [RFI] Power Supply - Noise Frequency Adjust? (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 23 May 2011 19:48:01 -0700
"Wow, what reactions!" Still wondering why they just didn't make a quiet one to begin with... Tune the radio, tune the power supply, tune the radio... tune the power supply... Kurt __________________
/archives//html/RFI/2011-05/msg00081.html (7,573 bytes)

72. Re: [RFI] RFI Digest, Vol 100, Issue 20 (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sat, 28 May 2011 21:29:47 -0700
first cordless telephone in 1902 and RCA came out with a mobile radio telephone "cellular" service in 1946. Kurt _______________________________________________ RFI mailing list RFI@contesting.com h
/archives//html/RFI/2011-05/msg00090.html (7,381 bytes)

73. Re: [RFI] Comcast Wall warts (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Mon, 20 Jun 2011 16:56:00 -0700
"The wall warts were extremely noisy and generated so much hash I was unable to listen to any AM radio in my entire home." I replace such noisy supplies with 25 cent linear supplies of the same speci
/archives//html/RFI/2011-06/msg00007.html (6,646 bytes)

74. Re: [RFI] 17 meter signal (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 19 Jul 2011 18:42:04 -0700
Can you send me a clean clear recording? I'll listen in from Nevada tonight, keep in mind there are a lot of "ditters" and "dashers" out there, EHFB (Experimental High Frequency Beacons) aka Pirates.
/archives//html/RFI/2011-07/msg00020.html (7,446 bytes)

75. Re: [RFI] Sudden RFI After Rain (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Tue, 26 Jul 2011 12:10:59 -0700
This isn't typical after a rain? In 35 years of radio, I've had noise like this after a rain and it diminishes over a few days as things dry out regardless of where in the country I am. Kurt ________
/archives//html/RFI/2011-07/msg00027.html (7,158 bytes)

76. Re: [RFI] New annoying noise just started (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Sun, 7 Aug 2011 21:31:19 -0700
That is very typical of power-line arcing noise. I have it here. Kurt www.w7psk.net/noise.wav www.w7psk.net/noise2.wav _______________________________________________ RFI mailing list RFI@contesting.
/archives//html/RFI/2011-08/msg00007.html (7,181 bytes)

77. Re: [RFI] Fisher Price Baby Monitor (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Thu, 29 Sep 2011 18:47:21 -0700
Those are notoriously susceptible to outside RFI, I doubt there is any filtering what-so-ever and the 14 MHz 4th harmonic and 28 MHz 2nd harmonic are close enough to walk right into the receiver. Kur
/archives//html/RFI/2011-09/msg00039.html (6,729 bytes)

78. Re: [RFI] Signal or Noise on 14.200 (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Wed, 19 Oct 2011 17:13:34 -0700
Very strong in DM09 at 1712 hrs Pacific Strandard Time. I do not the the means to obtain a bearing at this time, but it is quite strong here. Kurt _______________________________________________ RFI
/archives//html/RFI/2011-10/msg00012.html (7,772 bytes)

79. Re: [RFI] Signal on 14.2 MHz (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Fri, 21 Oct 2011 17:02:08 -0700
"Ocean Mapping Radar, like CODAR, has a bandwidth of 10 MHz or more. CODAR, has been around since 1981, runs 40W at 30 KHz bandwidth and can be heard through HF on several frequencies any given momen
/archives//html/RFI/2011-10/msg00027.html (7,173 bytes)

80. [RFI] CODAR Frequencies (Long List) (score: 1)
Author: "KD7JYK DM09" <kd7jyk@earthlink.net>
Date: Fri, 21 Oct 2011 18:22:28 -0700
Current CODAR frequencies, from http://cordc.ucsd.edu/projects/mapping/maps/ By Frequency, ID. Nothing near 14,200 KHz. Interesting to note that "Short Range", on the East coast of the US can wipe ou
/archives//html/RFI/2011-10/msg00028.html (9,670 bytes)


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