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1. [RFI] Tough to solve TVI problem (score: 1): Author: michael.findley at ni.com (michael.findley@ni.com); Date: Fri Jun 6 07:45:49 2003; That sounds like the creators of your TV did not use proper grounding technics. Take the back cover off and check out the ground wires that tie the shields together. Make it short as possible and put; /archives//html/RFI/2003-06/msg00016.html (11,530 bytes)
2. [RFI] stealth RFI (score: 1): Author: michael.findley at ni.com (michael.findley@ni.com); Date: Mon Jun 16 07:53:07 2003; I know at least one thing for a fact. The FCC does not require RF immunity testing to be sold in the US, however just because it has a CE mark doesn't mean its perfect either. Look through the instal; /archives//html/RFI/2003-06/msg00046.html (12,779 bytes)
3. [RFI] Terrible RFI (score: 1): Author: michael.findley at ni.com (michael.findley@ni.com); Date: Thu Mar 27 07:50:18 2003; Sounds like a dirty insulator on the main power lines. When it gets dry the dirt creates a corona type effect and after a rain the noise should get allot quieter. Seems like this is what you are desc; /archives//html/RFI/2003-03/msg00017.html (10,831 bytes)
4. [RFI] Switch mode lamp noise (score: 1): Author: michael.findley at ni.com (michael.findley@ni.com); Date: Fri Feb 14 08:28:42 2003; I think Lamps (fluorescent) fall under a higher limit in the FCC. If it considered an appliance I think there is an exemption from the conducted limits on kitchen appliances but it has been a couple; /archives//html/RFI/2003-02/msg00024.html (7,121 bytes)
5. [RFI] Shielding N4ZR (score: 1): Author: michael.findley@ni.com (michael.findley@ni.com); Date: Thu, 7 Nov 2002 13:57:35 -0600; CE magazine and www.rbitem.com ( ITEM magazine) has good articles on this subject. Michael Findley, NCT 11500 North Mopac Expwy Building C Austin, Texas 78759 512-683-8797 Phone 512-683-8880 Fax; /archives//html/RFI/2002-11/msg00020.html (6,854 bytes)
6. [RFI] RFI and Speed Stream 5667 DSL Modem (score: 1): Author: michael.findley@ni.com (michael.findley@ni.com); Date: Mon, 9 Sep 2002 16:28:45 -0500; A Cor.com power filter can be sampled for FREE. Get on and use it. It works for common mode and for differential mode noise. Michael Findley, NCT Compliance Engineering 512-683-8797 office 512-683-88; /archives//html/RFI/2002-09/msg00008.html (7,237 bytes)
7. [RFI] Nighthawk CO2 Detector (score: 1): Author: michael.findley@ni.com (michael.findley@ni.com); Date: Mon, 19 Aug 2002 11:00:53 -0500; A 500pF cap (around 40 ohms @7.5MHz) rated for 230Vac would also work in an X configuration for differential noise. The cap will be usefull also in a Y configuration if common mode noise is the probl; /archives//html/RFI/2002-08/msg00042.html (11,227 bytes)
8. RE: [RFI] Attention 20m fans: Something New for Your ListeningPleasure - Maybe (score: 1): Author: michael.findley@ni.com; Date: Wed, 27 Aug 2003 07:30:15 -0500; Medical equipment falls under the EMC directive enforced in March 1997. The spec is EN60601-1-2 for those with more money than cents ;) The spec tests for Emissions (10 meters usually used) (the old; /archives//html/RFI/2003-08/msg00159.html (11,180 bytes)
9. Re: [RFI] TV RFI (score: 1): Author: michael.findley@ni.com; Date: Fri, 31 Oct 2003 06:31:59 -0600; That depends on how they classify this. If it uses a spark gap to produce work as part of the product than it can fall under the "Extremely lenient" part 18 rules like your Microwave Oven. They also; /archives//html/RFI/2003-10/msg00032.html (11,787 bytes)
10. Re: [RFI] RFI from Horizonal Sweep (score: 1): Author: michael.findley@ni.com; Date: Wed, 7 Jan 2004 07:14:16 -0600; Most TV's have a shield around the tube area. The "engineer's" think that a ground wire centered on both sides is "the way to ground" any interference. I would check this out and ferrite these wires; /archives//html/RFI/2004-01/msg00012.html (10,245 bytes)
11. Re: [RFI] Testing a Switching Power Supply (score: 1): Author: michael.findley@ni.com; Date: Mon, 12 Jan 2004 07:20:12 -0600; I would test this product in 3 configurations. 1. Full rated Load current at all voltage outputs. 2. Half rated Load current at all voltage outputs. 3. No Load free-running. Attach a cap in series wi; /archives//html/RFI/2004-01/msg00038.html (9,563 bytes)
12. Re: [RFI] Can you identify this interference? (score: 1): Author: michael.findley@ni.com; Date: Thu, 22 Jan 2004 08:44:17 -0600; This also looks like a dry cracked insulator on the power lines. This type of noise shows up after a good dry spell. If it rains than the noise should go away until it dries up again. If this is the; /archives//html/RFI/2004-01/msg00047.html (10,534 bytes)
13. Re: [RFI] Experience with RF-INQUIRY Hi-Q Chokes? (score: 1): Author: michael.findley@ni.com; Date: Mon, 2 Feb 2004 07:50:41 -0600; Normally a 50 Ohm load is used. Refer to CISPR 16 ( A highly overpriced standard to which most all RF measurements are made.) "Tom Rauch" <w8ji@contesting. To: <rfi@contesting.com>, "Christian Buenge; /archives//html/RFI/2004-02/msg00003.html (9,653 bytes)
14. Re: [RFI] Experience with RF-INQUIRY Hi-Q Chokes? (score: 1): Author: michael.findley@ni.com; Date: Mon, 2 Feb 2004 08:42:31 -0600; What the hell, If you got the cash I got the stamp. "Tom Rauch" <w8ji@contesting. To: "Ian White, G3SEK" <g3sek@ifwtech.co.uk>, <rfi@contesting.com> com> cc: Sent by: Subject: Re: [RFI] Experience wi; /archives//html/RFI/2004-02/msg00006.html (11,007 bytes)
15. Re: [RFI] Broadband over Power Line (BPL) radio interference (score: 1): Author: michael.findley@ni.com; Date: Fri, 16 Jul 2004 17:10:56 -0500; Its about time I read a reasonable response to this. Thanks to you Ed for tolerating it all. Helping the enemy and not shooting the enemy can actually make the enemy your friend. "Tom Rauch" <w8ji@co; /archives//html/RFI/2004-07/msg00040.html (13,003 bytes)
16. RE: [RFI] Why we badly need "party line" materials for all hams (score: 1): Author: michael.findley@ni.com; Date: Mon, 19 Jul 2004 13:07:03 -0500; Yea just a few pounds of C4 ought to do the trick. "Dave Bernstein" <aa6yq@ambersoft. To: "'Hare,Ed, W1RFI'" <w1rfi@arrl.org>, "'Richard (Rick) Karlquist com> (N6RK)'" <richard@karlquist.com>, <rfi@c; /archives//html/RFI/2004-07/msg00100.html (31,451 bytes)

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