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References: [ +from:QRV@kd4e.com: 267 ]

Total 267 documents matching your query.

81. Re: [RFI] LED Bulbs (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 12 Feb 2014 07:40:25 -0500
Or, use a LED system that is known-clean - or modify it to make it so - nearly every kind of electrical device is capable of RFI if improperly implemented. In a word - yes. If the LEDs each have a sw
/archives//html/RFI/2014-02/msg00039.html (8,681 bytes)

82. Re: [RFI] LEDs etc (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 13 Feb 2014 22:13:11 -0500
Modern electronics are highly dependent on wireless-radio communication. "Wireless" and "radio" include Wifi, cellular, TV, public service communications (police, fire, ems), CB, Amateur Radio, Bluet
/archives//html/RFI/2014-02/msg00093.html (9,284 bytes)

83. Re: [RFI] LEDs etc (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 14 Feb 2014 10:29:58 -0500
Mike, Do they accept unsolicited devices or are they paid by someone to review them, e.g. a retail chain, manufacturer, etc? David KD4E I think I will call Consumer Report Magazine and offer to send
/archives//html/RFI/2014-02/msg00098.html (8,190 bytes)

84. Re: [RFI] Fraudulent FCC RFI Certification (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 18 Feb 2014 19:03:31 -0500
Walmart, Harbor Freight, Home Depot, Dollar Tree, Dollar General, eBay, Sears, auto industry, steel industry, wallboard, etc. I built a page for my own reference, but posted it for others, to consoli
/archives//html/RFI/2014-02/msg00109.html (9,085 bytes)

85. Re: [RFI] 10 Meter Mystery Signals (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 22 Feb 2014 14:15:48 -0500
There was some mention of some form of Iranian "radar" or something polluting 10m a while back ... I saw those 10m sigs on my P3 screen this morning. There would be some short bursts even down in the
/archives//html/RFI/2014-02/msg00131.html (7,628 bytes)

86. Re: [RFI] Quiet 24V charger needed (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 25 Mar 2014 19:07:43 -0400
Gary, Check with IOTA. I don't know if they make a 24v but their products are excellent. David KD4E My father's electric chair's charger went south. Its out of production and I haven't found an origi
/archives//html/RFI/2014-03/msg00183.html (8,663 bytes)

87. Re: [RFI] Thumper & not the rabbit (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 29 Mar 2014 13:05:02 -0400
Resonance in the control wires? How long are they? Are they twisted? Just a thought ... David KD4E Intermittent anything is hard enough to diagnose but something needs addressed. Any thoughts on what
/archives//html/RFI/2014-03/msg00281.html (7,954 bytes)

88. Re: [RFI] ARRL to FCC... (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 29 Mar 2014 21:45:48 -0400
It appears to be a case of fraud & should be addressed by the appropriate Federal agencies (FCC, FEC, etc.). If enough people are harmed, directly or indirectly, a classaction lawsuit may also result
/archives//html/RFI/2014-03/msg00291.html (10,793 bytes)

89. Re: [RFI] Thumper & not the rabbit (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 30 Mar 2014 11:45:49 -0400
Sounds as though you have two challenges: 1. How is the RFI getting into the system (and how to stop it)? 2. What, precisely, is causing the "thumping" (the collateral consequence of the RFI)? points
/archives//html/RFI/2014-03/msg00304.html (9,435 bytes)

90. Re: [RFI] Thumper & not the rabbit (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 30 Mar 2014 12:19:09 -0400
I missed the low roof-mounted beam detail - that increases the likelihood of indoors resonances! Most low-level RF-exposure fear-mongering, other than at SHF/Microwave frequencies, is likely junk sci
/archives//html/RFI/2014-03/msg00306.html (11,983 bytes)

91. [RFI] Interesting RFI of sorts ... (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 01 Apr 2014 12:28:13 -0400
When I plug in a Homedics Shiatsu (roller not vibration) massager & run the AC cord across the desk to the APC Back-UPS 550 box it interferes with the wired mouse. It does not do so continuously but
/archives//html/RFI/2014-04/msg00001.html (7,120 bytes)

92. Re: [RFI] ARRL to FCC... (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 01 Apr 2014 13:52:57 -0400
How many RF engineers are left on FCC staff? Last I heard they'd been flooded with bureaucrats and politicians. Also, how many of the remaining engineers are assigned any hours to address RFI? Just a
/archives//html/RFI/2014-04/msg00003.html (9,136 bytes)

93. [RFI] No RFI/EMI Filtering on triac ... (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Mon, 14 Apr 2014 22:30:44 -0400
Doubles as a 230VAC RFI noise Foxhunt source? http://www.mpja.com/04-15-14.asp?r=286364&s=6 -- David (NOT Dave) Colburn, KD4E - Nevils, Georgia USA Safe & Secure Search Engine: duckduckgo.com Android
/archives//html/RFI/2014-04/msg00104.html (6,902 bytes)

94. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 19 Apr 2014 16:19:22 -0400
What's the difference between VDSL & DSL? We have fiber-DSL to the exterior of our home then it's converted in a box prior to entry. Why would they do it differently than that? David KD4E Anybody hav
/archives//html/RFI/2014-04/msg00124.html (9,860 bytes)

95. Re: [RFI] VDSL (very-high-bit-rate digital subscriber line) (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 20 Apr 2014 14:45:55 -0400
Is it that they use a better fiber-to-copper converter at the street, then split the lines to the homes, rather than running fiber to each house & using a poorer quality converter? I'm trying to unde
/archives//html/RFI/2014-04/msg00146.html (12,936 bytes)

96. [RFI] Decoupling small trailer to reduce RFI? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 24 May 2014 18:09:41 -0400
Hybrids, e.g. a Prius, are infamous for HF hash from all of the electronics. I have read that someone went nuts shielding & bypassing things & made theirs usable but I lack the knowledge & time for s
/archives//html/RFI/2014-05/msg00062.html (7,455 bytes)

97. Re: [RFI] Decoupling small trailer to reduce RFI? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 25 May 2014 16:05:58 -0400
OK, finally got outside with my small AM-SW handheld receiver. The ferrite-bar antenna makes it semi bi-directional. There is a field about 4' around the Prius (powered up) where the RFI is significa
/archives//html/RFI/2014-05/msg00065.html (8,837 bytes)

98. Re: [RFI] RFI location finders (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Mon, 26 May 2014 18:37:36 -0400
I have a little radio that I bought from a Ham in England. Model: UT-DM9010 10 Bands AM/FM/SW Amazingly sensitive & sorta bi-directional on AM & SW using the internal ferrite-bar antenna. It worked t
/archives//html/RFI/2014-05/msg00073.html (9,650 bytes)

99. [RFI] Utility coming tomorrow to chase RFI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Mon, 02 Jun 2014 19:31:38 -0400
Awesome team at small utility coop here is sending two men & a bucket truck tomorrow AM to chase RFI with me. I'm pretty sure I've narrowed it to two specific poles ... hopefully I'm correct as my me
/archives//html/RFI/2014-06/msg00002.html (6,925 bytes)

100. Re: [RFI] Utility coming tomorrow to chase RFI (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 03 Jun 2014 11:34:54 -0400
They are riding the lines again - a more senior lineman is hoping to spot something not apparent to the newer guy who looked at them a couple of weeks ago. The pulled the arrestors, inspected the ins
/archives//html/RFI/2014-06/msg00004.html (8,574 bytes)

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