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1. [RFI] TVI & dish network. (score: 1): Author: blackburn@qnet.com (Keith Blackburn); Date: Mon, 20 Jan 2003 22:00:49 -0800; This is in response to the last couple posts regarding TVI and Dish Network receivers. I don't run high power on 2 meters, so have no direct experience there, but did have problems with HF getting in; /archives//html/RFI/2003-01/msg00044.html (7,853 bytes)
2. [RFI] Shielding (score: 1): Author: blackburn@qnet.com (Keith Blackburn); Date: Fri, 08 Nov 2002 19:43:19 -0800; Pete, See inserted comments below. Hope this helps. Keith KB6B The purpose of a shield is to "short circuit" the radiated fields either emanating from or coupling to whatever you're trying to shield.; /archives//html/RFI/2002-11/msg00025.html (12,613 bytes)
3. [RFI] Filtered connectors for video noise (score: 1): Author: blackburn@qnet.com (Keith Blackburn); Date: Wed, 24 Oct 2001 20:00:49 -0700; Pete, Don't have any direct experience with filter pin connectors on video cards, but have used them on other systems and do have a couple observations: First, I'd suspect that the noise source is in; /archives//html/RFI/2001-10/msg00011.html (12,137 bytes)
4. [Fwd: [RFI] RFI Troubles] (score: 1): Author: blackburn <blackburn@qnet.com> (blackburn); Date: Sun, 24 Dec 2000 21:59:19 -0800; This is a multi-part message in MIME format. --F8ABB40278746BF86F181EC4 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit For some reason this didn't get reflected. Lets try; /archives//html/RFI/2000-12/msg00035.html (27,492 bytes)
5. [Fwd: [RFI] Moniter RFI and screen sheilds] (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Fri, 28 Jul 2000 20:27:06 -0700; This is a multi-part message in MIME format. --57DF76EAFE64EA75E2500C29 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit For some reason this didn't get posted...let's try i; /archives//html/RFI/2000-07/msg00021.html (16,118 bytes)
6. [RFI] Phone RFI fixes - no ring, lower cost solutions? (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Wed, 22 Dec 1999 20:49:13 -0800; For some reason this didn't get posted...let's try it again. Keith -- Submissions: rfi@contesting.com Administrative requests: rfi-REQUEST@contesting.com WWW: http://www.contesting.com/rfi-faq.html Q; /archives//html/RFI/1999-12/msg00040.html (12,244 bytes)
7. (Fwd) RE: [RFI] Common mode (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Sat, 20 Nov 1999 03:56:21 -0800; Juan, Let me see if I can help a little. I'll insert comments after your paragraphs: To: <rfi@contesting.com> "Common-mode" is the net current flowing in one direction in a transmission line, regardl; /archives//html/RFI/1999-11/msg00018.html (19,558 bytes)
8. [RFI] Computer Speaker RFI (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Fri, 24 Sep 1999 16:10:48 -0700; Mark, This is a very common problem. The first thing to try is common-mode chokes on the speaker wires. Wrap a number of turns (whatever will fit or whatever length of wire is available...more is bet; /archives//html/RFI/1999-09/msg00005.html (8,740 bytes)
9. [RFI] Lights flicker (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Fri, 24 Sep 1999 16:31:12 -0700; Eric, How much power are you running, and how is the AC power feed to your station configured? The first thing to check is whether or not your station is drawing enough current on transmit to cause a; /archives//html/RFI/1999-09/msg00006.html (8,603 bytes)
10. [Fwd: [RFI] MOBILE RFI KILLS ENGINE of 1998 Rodeo] (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Wed, 07 Jul 1999 20:25:42 -0700; For some reason, this didn't get posted. Lets try again... -- Submissions: rfi@contesting.com Administrative requests: rfi-REQUEST@contesting.com WWW: http://www.contesting.com/rfi-faq.html Questions; /archives//html/RFI/1999-07/msg00003.html (12,095 bytes)
11. [Fwd: [RFI] 1500 Watts vs. Radio Shack Amplified Antenna] (score: 1): Author: Blackburn <blackburn@qnet.com> (Blackburn); Date: Sat, 08 May 1999 18:34:16 -0700; Last submission apparently didn't get posted...let's try this again. Keith -- Submissions: rfi@contesting.com Administrative requests: rfi-REQUEST@contesting.com WWW: http://www.contesting.com/rfi-fa; /archives//html/RFI/1999-05/msg00014.html (12,802 bytes)
12. [RFI] RFI/TVI, max. permissible electrical field (score: 1): Author: Blackburn" <blackburn@qnet.com (Blackburn); Date: Mon, 11 Jan 1999 19:29:16 -0800; Hi, Just though I'd add a little more information. K0IL is correct that the U.S. does not regulate transmitted fields from amateur stations in terms of generating susceptibility to consumer electroni; /archives//html/RFI/1999-01/msg00005.html (13,364 bytes)
13. [RFI] PC keyboard RF immunity? (score: 1): Author: Blackburn" <blackburn@qnet.com (Blackburn); Date: Fri, 25 Dec 1998 12:19:31 -0800; Just thought I'd add a little to W2YR's article. The purpose of adding ferrites is to put a common-mode impedance in series with the I/O wiring. Impedance is a function of frequency and the amount of; /archives//html/RFI/1998-12/msg00004.html (9,037 bytes)
14. [RFI] Reply to intermod question FYI (score: 1): Author: Blackburn" <blackburn@qnet.com (Blackburn); Date: Sun, 27 Dec 1998 21:38:32 -0800; -- To: <rfi@contesting.com> Keep repeater) NOAA affected with from of storage the type makes for the reasonable. never know..... head likely To: <rfi@contesting.com> with to http://www.juno.com/getju; /archives//html/RFI/1998-12/msg00006.html (14,718 bytes)
15. [RFI] G5RV opens/closes garage door (score: 1): Author: Blackburn" <blackburn@qnet.com (Blackburn); Date: Thu, 5 Nov 1998 21:31:44 -0800; Most problems such as this are due to common mode RF coupling into susceptible equipment, i.e., conductors such as power lines, pushbutton wiring, etc., act as antennas and conduct RF current into th; /archives//html/RFI/1998-11/msg00006.html (13,872 bytes)

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