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81. Re: [RFI] Hybrid Car RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sat, 1 Dec 2018 18:09:56 +0000
When we finally ordered our new Jeep Rubicon JL, I took my portable spectrum analyzer to frisk a similar vehicle on the lot. I had had previous experience with some VERY SERIOUS emissions from the ea
/archives//html/RFI/2018-12/msg00001.html (8,559 bytes)

82. Re: [RFI] Hybrid Car RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sat, 1 Dec 2018 20:44:19 +0000
Yes, it did, down to1 MHz. Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* *Just Think* _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesti
/archives//html/RFI/2018-12/msg00003.html (7,994 bytes)

83. Re: [RFI] Hybrid Car RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sat, 1 Dec 2018 20:49:53 +0000
This last time around when we ordered ours, no, I did not frisk the lot vehicle below 10 or so MHz, if that is what you are inquiring about. The friend's vehicle which I wrote the report on was evalu
/archives//html/RFI/2018-12/msg00004.html (8,525 bytes)

84. Re: [RFI] Here is the ARRL link... (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 3 Dec 2018 21:51:56 +0000
I tracked one of these offending LED signs down to a furniture seller in Fort Collins, Colorado, six or so years ago. They were severely interfering with one of our repeaters even at some 30 miles di
/archives//html/RFI/2018-12/msg00008.html (8,153 bytes)

85. Re: [RFI] Anyone correlated feedline common mode current levels with RFI / noise received? (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sun, 9 Dec 2018 20:12:33 +0000
I don't have quantitative measurements, but some experiences that may help: 1) CM Probes: I've built a number of these using clamp-on ferrites meant for EMI remediation. I usually wind four to six si
/archives//html/RFI/2018-12/msg00037.html (15,724 bytes)

86. Re: [RFI] OTHR ? (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 10 Dec 2018 17:42:59 +0000
Here in Colorado, the High Noon Net which meets daily at noon MST on 7.240 MHz has been plagued by what we have identified as STANAG 4285 modulation. Source is unknown, but the east coasters seem to
/archives//html/RFI/2018-12/msg00042.html (8,539 bytes)

87. Re: [RFI] Politics and RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 10 Dec 2018 17:45:17 +0000
Yes, indeed: "With Love, from China". Dave - WØLEV -- *Dave - WØLEV* *Just Let Darwin Work* *Just Think* _______________________________________________ RFI mailing list RFI@contesting.com http://lis
/archives//html/RFI/2018-12/msg00043.html (8,720 bytes)

88. Re: [RFI] external noise source identification (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sat, 22 Dec 2018 01:42:09 +0000
With the 2' of ladder line connected, hold both hands on the surface of the laptop display. If the noise increases (or decreases), your laptop is at fault. Dave - WØLEV -- *Dave - WØLEV* *Just Let Da
/archives//html/RFI/2018-12/msg00057.html (12,877 bytes)

89. Re: [RFI] A troubling new source of RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 17 Jan 2019 15:49:26 +0000
I once tried Ethernet over house power wiring. It didn't last long. When I loaded a kW into the antenna, that took care of it. The "adapter" went up in smoke, literally. However, when it was operatin
/archives//html/RFI/2019-01/msg00014.html (8,575 bytes)

90. Re: [RFI] RFI Digest, Vol 192, Issue 7 (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 24 Jan 2019 20:27:46 +0000
This has happened on a couple of other groups to which I subscribe. Sad, but morals and scruples (and Copyrights) are out the window and not honored anymore! It would be one thing if they gave the au
/archives//html/RFI/2019-01/msg00037.html (8,061 bytes)

91. Re: [RFI] Bulk order source for Ferrite beads? (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sun, 3 Feb 2019 17:05:37 +0000
Couldn't agree with you more, Larry. 43 and 61 material is my choices for CM chokes at HF as well. Those I presently have in the system are wound on 43 material. Dave - WØLEV -- *Dave - WØLEV* *Just
/archives//html/RFI/2019-02/msg00007.html (12,675 bytes)

92. Re: [RFI] Bulk order source for Ferrite beads? (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Wed, 20 Feb 2019 18:08:44 +0000
"......the average ham can get by with just trig and algebra......" I dare observe and document that 95% (if not more) of the hams that populate our local Northern Colorado repeaters are *afraid* of
/archives//html/RFI/2019-02/msg00059.html (13,873 bytes)

93. Re: [RFI] Air Conditioner / Heat Pump recommendations (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 21 Feb 2019 18:13:14 +0000
I have a Carrier AC unit which is about 5 years old. The only RFI problem I've had with it is when the motor starting capacitor was replaced. The new cap was not a tight fit to the original mounting
/archives//html/RFI/2019-02/msg00067.html (11,717 bytes)

94. Re: [RFI] Trying to locate the Part 15 compliance note... (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Fri, 22 Feb 2019 19:41:16 +0000
There likely wo't be a statement. Home appliances are specifically exempt from FCC rules of any kind. 15.103(d) will be difficult to force into this case where it arcs when an amateur transmits. § 15
/archives//html/RFI/2019-02/msg00077.html (20,224 bytes)

95. Re: [RFI] Bonding to a PC (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Sat, 2 Mar 2019 19:25:33 +0000
In a class I once taught: 1) Keep inside fields inside (the Faraday cage). 2) Keep outside fields outside (the Faraday cage). The result is that fields generated inside the enclosure stay inside and
/archives//html/RFI/2019-03/msg00004.html (15,494 bytes)

96. [RFI] SOME GOOD INFO (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Wed, 13 Mar 2019 23:06:23 +0000
May take a while to load: http://www.arrl.org/files/file/Technology/pdf/ExternalNoiseHandbook.pdf -- *Dave - WØLEV* *Just Let Darwin Work* *Just Think* <https://www.avast.com/sig-email?utm_medium=ema
/archives//html/RFI/2019-03/msg00014.html (7,808 bytes)

97. Re: [RFI] Trying to locate the Part 15 compliance note... (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 14 Mar 2019 16:06:06 +0000
Go to (3) in the following URL: https://f2labs.com/technotes/2018/01/23/fcc-new-labeling-and-manual-requirements/ Don't know if this will help, but it is a brand new requirement. Dave - WØLEV <https:
/archives//html/RFI/2019-03/msg00017.html (29,016 bytes)

98. Re: [RFI] RFI Digest, Vol 195, Issue 2 (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Thu, 11 Apr 2019 20:10:46 +0000
Amazon presently sells the UV-5R for $24.95. I just checked. It's not a scam although I can NOT condone the assembly lines staffed with slaves of the state. Likely, the assembly lines are completely
/archives//html/RFI/2019-04/msg00004.html (12,277 bytes)

99. Re: [RFI] SolarEdge Finds New Source of Solar System RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 3 Jun 2019 20:58:26 +0000
1) I've preached wiring and PCB layout is not just DC, but high-frequency as well - into the VHF and low UHF region. Transmission line concepts must be considered. Consequently, good high-frequency p
/archives//html/RFI/2019-06/msg00018.html (15,215 bytes)

100. Re: [RFI] SolarEdge Finds New Source of Solar System RFI (score: 1)
Author: David Eckhardt <davearea51a@gmail.com>
Date: Mon, 3 Jun 2019 21:35:57 +0000
Jim, audio equipment meets its challenge with the immunity requirements that Europe places on it. Analog circuitry is highly susceptible to external fields! Design to withstand the EU standards is no
/archives//html/RFI/2019-06/msg00021.html (12,827 bytes)

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