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Total 167 documents matching your query.

61. Re: [RFI] Dell D505 PA-10 PS (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Fri, 10 Aug 2012 16:19:06 -0400 (GMT-04:00)
Pat, For starters, go to the K9YC website and read the mountains of info Jim has posted there. You must read carefully and thoroughly - don't be in a hurry. If you have any beads or cores, some Type
/archives//html/RFI/2012-08/msg00054.html (9,516 bytes)

62. Re: [RFI] Getting a Gas Furnace, and Electric AC unit... (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Tue, 14 Aug 2012 09:14:06 -0400 (GMT-04:00)
Jim and All, I strongly suspect (but can't prove) that one reason (maybe the MAIN reason) that engineers at the appliance makers are so lacking in EMC/RFI knowledge is the "free pass" they get from t
/archives//html/RFI/2012-08/msg00074.html (10,961 bytes)

63. Re: [RFI] Motors/controllers and something to think about (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Thu, 16 Aug 2012 11:13:15 -0400 (GMT-04:00)
Larry, The issue of rise time may also be inflexible for some systems. While I have often encountered design situations in which rise time was considerably faster than required (the digit guys wanted
/archives//html/RFI/2012-08/msg00090.html (11,102 bytes)

64. Re: [RFI] Motors/controllers and something to think about (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Thu, 16 Aug 2012 13:04:16 -0400 (GMT-04:00)
Larry, I agree about motors, in and of themselves, not being particularly sensitive to fast risetime needs. Yes, the driving waveform could be slowed down by appropriate filters, but I do urge cautio
/archives//html/RFI/2012-08/msg00093.html (14,470 bytes)

65. Re: [RFI] GE Microwave (score: 1)
Author: Dale <svetanoff@earthlink.net>
Date: Mon, 27 Aug 2012 16:05:43 -0500 (GMT-05:00)
A number of years ago, a paper was presented at the annual meeting of the Central States VHF Society in which the equipment and methods necessary to phase-lock a microwave oven magnetron were present
/archives//html/RFI/2012-08/msg00119.html (9,972 bytes)

66. Re: [RFI] Success!!!!! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Thu, 30 Aug 2012 12:11:06 -0500
Dave, Thanks for sharing your success story. Very interesting, indeed. One comment: You say that the homeowner will be replacing the noise-making power source. The problem is that the replacement is
/archives//html/RFI/2012-08/msg00128.html (13,073 bytes)

67. Re: [RFI] just what everyone needs! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Mon, 10 Sep 2012 10:07:06 -0500
Christopher, Dave, and All, First, my thanks to David, K1TTT, for posting the "docassist" URL. That is very interesting, and I have downloaded not only the spec under discussion, but several others i
/archives//html/RFI/2012-09/msg00031.html (15,083 bytes)

68. Re: [RFI] just what everyone needs! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Mon, 10 Sep 2012 14:49:02 -0500
Cortland, Thanks for the info. I had not heard about the rather significant product failure that you describe, but I believe it. I don't know if that is the same product to which I was alluding, but
/archives//html/RFI/2012-09/msg00036.html (11,609 bytes)

69. Re: [RFI] just what everyone needs! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Mon, 10 Sep 2012 14:57:13 -0500
Lee, With all due respect, I have to disagree about not upsetting an antenna pattern. Look at it this way: If the wire were run without a shielded over braid, then the absorptive material over the co
/archives//html/RFI/2012-09/msg00037.html (9,894 bytes)

70. Re: [RFI] just what everyone needs! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Mon, 10 Sep 2012 15:12:24 -0500
Andy, For starters, I strongly suggest a visit to the URL link that David, K1TTT, provided in an earlier posting on this topic. One look at the diagram in the spec will tell you that no, this is not
/archives//html/RFI/2012-09/msg00038.html (12,108 bytes)

71. Re: [RFI] just what everyone needs! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Tue, 11 Sep 2012 10:40:44 -0500
Andy, Cortland, and All, I have pasted Cortland's comments to Andy into this message so that I can address comments and issues to both of you without the time and bandwidth of separate replies. After
/archives//html/RFI/2012-09/msg00047.html (20,062 bytes)

72. Re: [RFI] Noise changes when room lights turn on / off (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Wed, 12 Sep 2012 09:56:16 -0500
Patrick, That certainly is bad news about the open ground on an AC outlet. However, the "tingle" you get with 2-prong, non-polarized plug devices in metal housings has nothing to do with the AC wirin
/archives//html/RFI/2012-09/msg00060.html (9,855 bytes)

73. Re: [RFI] ISOBAR (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Tue, 18 Sep 2012 09:46:55 -0500
Pete, Two questions: 1) That 40 feet of bare #2 wire between the entrance panel and power line ground - I assume it is run outside, and if so, how many ground rods are on it? 2) Does the wire provide
/archives//html/RFI/2012-09/msg00109.html (12,539 bytes)

74. Re: [RFI] ISOBAR (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Tue, 18 Sep 2012 10:59:07 -0500
David, The intent of saying "net Z" was to include the length of the grounding lead(s), plus remembering that any significant bends will appear as a turn on an inductor. With regard to physical objec
/archives//html/RFI/2012-09/msg00111.html (11,392 bytes)

75. Re: [RFI] ISOBAR (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Tue, 18 Sep 2012 21:15:39 -0500
Pete, Thanks for the detailed reply. Yes, given the second floor shack location (which I had in my younger days), I agree with your contention about disconnect being the most effective approach. You
/archives//html/RFI/2012-09/msg00126.html (11,527 bytes)

76. Re: [RFI] ISOBAR (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Wed, 19 Sep 2012 10:54:50 -0500
Roger, You make some interesting comments. Please scroll down and see my inserted remarks. Thank you. 73, Dale Svetanoff, WA9ENA Sr EMC Engineer E-N-A Systems, LLC Specializing in shielding applicati
/archives//html/RFI/2012-09/msg00129.html (22,247 bytes)

77. Re: [RFI] ISOBAR (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Wed, 19 Sep 2012 13:24:00 -0500
David, All I can say about my post is this: IT WORKS. YES, the power ground "bounces" up and down to the tune of lotsa' kV, no doubt about it, during a strike. However, ALL of the grounds are bouncin
/archives//html/RFI/2012-09/msg00131.html (13,387 bytes)

78. Re: [RFI] Noise changes when room lights turn on / off- NOISEFOUND!!!!! (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Sat, 22 Sep 2012 14:13:53 -0500
Jim and All, Just an FYI note on CFL and LED lamp life: "Consumer Reports" is in the midst of accelerated life testing on a large number of CFL and LED lamps. They are about 2 years into the mission
/archives//html/RFI/2012-09/msg00144.html (8,960 bytes)

79. Re: [RFI] 24VDC PS - Recommended Quiet Model? (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Fri, 5 Oct 2012 15:03:10 -0500
David, I have addressed this issue before in prior posts. For your benefit, here are my comments about your requirements, and then about the eBay "delights" you listed. Finally, I'll make some sugges
/archives//html/RFI/2012-10/msg00002.html (15,539 bytes)

80. Re: [RFI] Line noise update (score: 1)
Author: "Dale Svetanoff" <svetanoff@earthlink.net>
Date: Tue, 9 Oct 2012 18:23:06 -0500
Hello to the RFI sniffers! I have yet to put this radio to that application, but my Icom IC-91A offers AM reception from below the AM b'cast band thru HF, plus the aircraft band and even higher. If I
/archives//html/RFI/2012-10/msg00021.html (12,867 bytes)

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