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References: [ +from:k3lr@k3lr.com: 103 ]

Total 103 documents matching your query.

1. Re: [TowerTalk] Comment on Radar Engineers Model 240 (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Mon, 11 Aug 2003 17:04:23 -0500
Tod: It is a VERY good unit. Mike Martin, K3RFI uses it and it makes noise locating much easier. Mike has training available as well. It is also described in the Loftness AC power line noise book tha
/archives//html/RFI/2003-08/msg00002.html (9,485 bytes)

2. Re: [RFI] Unknown Signal (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sun, 07 Dec 2003 11:29:01 -0600
Someone might send Riley an email and see if this is an intruder. The FCC will be able to tell very fast. 73, Tim K3LR _______________________________________________ RFI mailing list RFI@contesting.
/archives//html/RFI/2003-12/msg00011.html (8,015 bytes)

3. Re: [TowerTalk] electric fence qrn (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Mon, 08 Dec 2003 22:12:54 -0600
Hi Bill! Can you tell us the make and model number of your fencer that is quiet? That would really help many of us with "noisy neighbors"! Thanks and 73, Tim K3LR ____________________________________
/archives//html/RFI/2003-12/msg00023.html (8,843 bytes)

4. Re: [RFI] RFI From Hell (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sun, 28 Mar 2004 12:46:04 -0600
I had a similar situation several years ago. My situation included the CATV shield radiation issue as well. Turned out to be a neighbors PC was causing the problem. The PC had no AC line filtering an
/archives//html/RFI/2004-03/msg00166.html (9,628 bytes)

5. Re: [RFI] Power Line Ultrasound Detector (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Tue, 16 Aug 2005 15:08:25 -0500
Does anyone know of a VHF and or UHF yagi that is available with a hand held option, without homebrew mods? This would be an out-of-the-box solution for an RFI directional antenna that can be hooked
/archives//html/RFI/2005-08/msg00039.html (9,528 bytes)

6. [RFI] RF Proof Computer Speakers? (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Tue, 06 Dec 2005 21:04:57 -0600
Does anyone have a recommendation of a set of speakers that are close to "RFI proof"? 1.8 to 30 MHz. Thanks and 73, Tim K3LR _______________________________________________ RFI mailing list RFI@conte
/archives//html/RFI/2005-12/msg00001.html (6,898 bytes)

7. [RFI] Name this Topband RFI generator please! (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sun, 22 Jan 2006 09:55:58 -0600
I am hearing carriers at 4 KHz increments on 160 meters. They are not BC carriers. They start at 1804, 08, 12, 16, etc. I think they are generated by a neighbors computer power supply, or something e
/archives//html/RFI/2006-01/msg00101.html (6,904 bytes)

8. [RFI] Great Article on Common Mode Chokes (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sun, 16 Apr 2006 22:41:53 -0500
Chuck, W1HIS has written a 42 page article on this subject. Click on the link and pick WORD or .PDF Chuck has included amazing detail. http://www.yccc.org/Articles/articles.htm Thanks Chuck! 73! Tim
/archives//html/RFI/2006-04/msg00006.html (6,606 bytes)

9. [RFI] 2006 Dayton Antenna Forum - Speaker Lineup (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sun, 23 Apr 2006 23:01:55 -0500
2006 Hamvention Antenna Forum Tim Duffy, K3LR Moderator Friday, May 19, 2006 from 1:30 PM to 4:00 PM Room 1 HARA Arena "Another Way to View Propagation Predictions for DXing and Contesting" Dean Stra
/archives//html/RFI/2006-04/msg00014.html (7,408 bytes)

10. [RFI] RFI Proof Computer speakers needed!!! (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Tue, 31 Oct 2006 23:17:51 -0600
I really need to find a solution for 40 and 15 meter RFI (caused by my near field RF) that gets into my neighbors computer speakers. I have asked this before, but I need to find a good set that is cl
/archives//html/RFI/2006-11/msg00000.html (6,254 bytes)

11. [RFI] [Fwd: RFI Proof Computer speakers needed!!!] (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Wed, 01 Nov 2006 10:34:12 -0600
_______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/mailman/listinfo/rfi
/archives//html/RFI/2006-11/msg00004.html (6,719 bytes)

12. [RFI] RFI proof speakers (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Wed, 01 Nov 2006 10:38:45 -0600
I really need to find a solution for 40 and 15 meter RFI (caused by my near field RF) that gets into my neighbors computer speakers. I have asked this before, but I need to find a good set that is cl
/archives//html/RFI/2006-11/msg00005.html (9,885 bytes)

13. Re: [RFI] RFI Proof Computer speakers needed!!! (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Sat, 04 Nov 2006 19:37:01 -0600
Thanks to ALL who emailed their ideas. I'll be working on this in a few weeks and will let you ll know what fixes it! 73! Tim K3LR _______________________________________________ RFI mailing list RFI
/archives//html/RFI/2006-11/msg00009.html (9,413 bytes)

14. Re: [RFI] IN-band Filters (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Tue, 07 Nov 2006 17:23:36 -0600
Hi Bryan! You will find this a tall order. When I was doing competitive Field Days I found that taking advantage of separation of stations and polarization diversity will provide all the isolation yo
/archives//html/RFI/2006-11/msg00017.html (9,453 bytes)

15. Re: [RFI] Need a Filter (score: 1)
Author: Tim Duffy K3LR <k3lr@k3lr.com>
Date: Tue, 26 Dec 2006 11:14:49 -0600
http://www.arraysolutions.com The W3NQN powerline filter will take care of your problem. 73! Tim K3LR http://www.k3lr.com _______________________________________________ RFI mailing list RFI@contesti
/archives//html/RFI/2006-12/msg00073.html (7,496 bytes)

16. Re: [RFI] 10m RFI "white noise hiss" (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Sat, 10 Nov 2007 14:13:28 -0600
I have found that the W3NQN AC line filter can fix this kind of problem. By simply inserting the W3NQN filter in series with the AC line feeds of TVs and computers, I have cleaned up several RFI gene
/archives//html/RFI/2007-11/msg00028.html (9,056 bytes)

17. Re: [RFI] 80M mystery noise (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Tue, 13 Nov 2007 15:50:39 -0600
Hi Pete! I had a very similar warbler that we used to hear on 160 and 80 meters at K3LR. Every 4 KHz. Using my Icom R1 handheld CW receiver, a step attenuator and mobile whips I DFed the culprit. It
/archives//html/RFI/2007-11/msg00042.html (8,997 bytes)

18. Re: [RFI] Non-transmitting tower causes RFI/EMI? (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Tue, 13 Nov 2007 22:22:18 -0600
Your neighbor's claim of reradiation is without merit and there is no science that will back their theory. That being said, I suggest you contact the manufacture of the device and explain the situati
/archives//html/RFI/2007-11/msg00048.html (9,920 bytes)

19. Re: [RFI] OT? Why Does 1450 Wobble & 970 Not? (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Wed, 21 Nov 2007 14:47:29 -0600
1450 KHz has many more "local" stations on it in the USA than does 970. 1450 has better "sky wave propagation" being that it is higher in frequency. So what you are hearing as wobble is either multip
/archives//html/RFI/2007-11/msg00077.html (9,450 bytes)

20. [RFI] FW: [CQ-Contest] Follow-up on RFI and laptop - problem solved (score: 1)
Author: "Tim Duffy K3LR" <k3lr@k3lr.com>
Date: Mon, 17 Dec 2007 20:35:47 -0600
Thanks for all the suggestions. Problem is solved now and here's what I did: 1. Grounded the laptop to the station bus ground - I've always had grounded my desktops, but it was easy, attaching the br
/archives//html/RFI/2007-12/msg00033.html (7,948 bytes)

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