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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+RFI\s*$/: 27 ]

Total 27 documents matching your query.

1. TopBand: rfi (score: 1): Author: Peter.Chadwick@gpsemi.com (Peter Chadwick); Date: Fri, 17 Oct 1997 15:22:10 +0100; Gary, W0AW, A large number of the 49MHz cordless phones have 1.75MHz or therabouts for the base to phone side. This means that any power on 160 is going to leave it a dead duck. I'd go for a 900MHz s; /archives//html/Topband/1997-10/msg00230.html (6,705 bytes)
2. Topband: RFI (score: 1): Author: "John" <jmltinc@aol.com>; Date: Tue, 30 Dec 2008 12:47:59 -0600; Hi all, Can anyone suggest a toroid and number of turns to choke out 160 meter QRO from a Yaesu control cable? The RF on the cable's wires is not good for the control box! Thanks to all, -John, N9RF; /archives//html/Topband/2008-12/msg00289.html (6,639 bytes)
3. Re: Topband: RFI (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Tue, 30 Dec 2008 23:38:58 -0800; meter QRO from a Yaesu control cable? The RF on the cable's wires is not good for the control box! See the "Choke Cookbook" in http://audiosystemsgroup.com/RFI-Ham.pdf Which toroid size, quantity, an; /archives//html/Topband/2008-12/msg00301.html (7,154 bytes)
4. Topband: RFI (score: 1): Author: jmltinc@aol.com; Date: Thu, 01 Jan 2009 12:36:16 -0500; Thanks to all that replied. I have passed on the info. We'll give it a whirl. Thanks for a specific toroid number Dave, and thanks for the link, Jim?- very usefull. -John, N9RF ______________________; /archives//html/Topband/2009-01/msg00003.html (6,230 bytes)
5. Topband: rfi (score: 1): Author: john <w8wej@citynet.net>; Date: Mon, 04 Oct 2010 13:56:34 +0000; folks, in that I have 20 over s9 line noise here at the house on 160, I'm looking to buy a working mfj 1026 or 1025 . Also need recommendation of snap on beads to put on jumper(mini 8) going to the m; /archives//html/Topband/2010-10/msg00019.html (6,533 bytes)
6. Topband: RFI (score: 1): Author: "Mike Greenway" <K4PI@BELLSOUTH.NET>; Date: Tue, 1 Nov 2011 08:22:48 -0400; This year I am encountering a hash noise that repeats about every 66 to 70 Khz. It is maybe 20 or 25 khz wide with a peak at the center. Sound like the background noise is just increasing as you tune; /archives//html/Topband/2011-11/msg00000.html (5,809 bytes)
7. Re: Topband: RFI (score: 1): Author: Clint Talmadge <clinttalmadge@gmail.com>; Date: Tue, 1 Nov 2011 08:55:35 -0500; If you recently purchased any new electric heaters, check them. Some of the new electronic thermostats can generate what you describe. Clint - W5CPT - -- *Clint Talmadge* ____________________________; /archives//html/Topband/2011-11/msg00001.html (7,404 bytes)
8. Re: Topband: RFI (score: 1): Author: Pete Smith <n4zr@contesting.com>; Date: Tue, 01 Nov 2011 10:04:55 -0400; You might want to try this on the RFI@contesting.com reflector. In the meantime, how high in frequency can you hear this. Can you see it on a panoramic display? 73, Pete N4ZR The World Contest Statio; /archives//html/Topband/2011-11/msg00002.html (7,334 bytes)
9. Re: Topband: RFI (score: 1): Author: Bill Stewart <cwopr@embarqmail.com>; Date: Tue, 1 Nov 2011 10:39:29 -0400 (EDT); Mike, We bought a Samsung HD TV a few years ago. It puts out a birdie every 25khz or so and can be heard fairly strong on 160..one around 1825. It also puts out a pulse type trash in large portions o; /archives//html/Topband/2011-11/msg00004.html (8,013 bytes)
10. Re: Topband: RFI (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Tue, 1 Nov 2011 10:22:26 -0400; Typical switch-mode noise. Over the years, I have had to identify several of these noise sources from within my own home as well as neighbors. Keep in mind this is a different type of noise to locali; /archives//html/Topband/2011-11/msg00005.html (9,931 bytes)
11. Topband: RFI (score: 1): Author: "Hal Kennedy" <halken@comcast.net>; Date: Tue, 1 Nov 2011 15:43:31 -0400; I have had two instances over the past few years of similar noise Mike. Both cases turned out to be small switching power supplies...one for a Dell laptop, the other for an LCD monitor. Both supplies; /archives//html/Topband/2011-11/msg00006.html (7,762 bytes)
12. Topband: RFI (score: 1): Author: "Bill & Liz" <magoo@isp.ca>; Date: Mon, 26 Oct 2015 10:15:53 -0400; FWIW, someone posted here a few months ago that his interfering noise on 160M was traced to a cheap imported switching power supply for some device or other. I believe that much of the crud found in; /archives//html/Topband/2015-10/msg00178.html (6,331 bytes)
13. Re: Topband: RFI (score: 1): Author: <lstoskopf@cox.net>; Date: Mon, 7 Nov 2016 16:20:16 -0500; 50 years ago my neighbor would complain that his garage door was open every morning. Never went up and down, just up. The maintenance guys were crazy with calls. I never knew about it until I was abo; /archives//html/Topband/2016-11/msg00026.html (6,935 bytes)
14. Topband: RFI (score: 1): Author: rick darwicki via Topband <topband@contesting.com>; Date: Sat, 30 Nov 2019 17:14:51 +0000 (UTC); First let me say I was the ARRL TVI coordinator back in the 70s and have a ton of ferrite on the DirecTV dish leads, box and TV, but this is an interesting one: I have 3 LED lights in the Hallway, th; /archives//html/Topband/2019-11/msg00193.html (7,063 bytes)
15. Re: Topband: RFI (score: 1): Author: "jcjacobsen@q.com" <jcjacobsen@q.com>; Date: Sun, 1 Dec 2019 12:37:25 -0500 (EST); How do to all, Rick is having trouble with his LED hall lights on 3/way with dimmer. Rick, this may be a stretch, but it might have to do with the length of the wiring itself. ie: When you turn them; /archives//html/Topband/2019-12/msg00003.html (7,112 bytes)
16. Topband: RFI (score: 1): Author: fmoeves <fmoeves@twc.com>; Date: Wed, 24 Jun 2020 16:44:51 -0400; Hoping someone can help me identify this noise.It's on 160 80 40...most times stronger on 40.I called the power company..they found nothing.The video is just after some rain. When it rains it goes aw; /archives//html/Topband/2020-06/msg00054.html (7,065 bytes)
17. Re: Topband: RFI (score: 1): Author: fmoeves <fmoeves@twc.com>; Date: Wed, 24 Jun 2020 17:12:31 -0400; We the link didn't work like it should have sorry. It's the first link just click on the 7610. Lots of crap in that gallery... Thanks Fred KB4QZH -- Original message --From: fmoeves <fmoeves@twc.com; /archives//html/Topband/2020-06/msg00055.html (7,605 bytes)
18. Re: Topband: RFI (score: 1): Author: Steve Lawrence via Topband <topband@contesting.com>; Date: Wed, 24 Jun 2020 14:16:48 -0700; Look here. GL - Steve WB6RSE http://www.arrl.org/sounds-of-rfi Hoping someone can help me identify this noise.It's on 160 80 40...most times stronger on 40.I called the power company..they found noth; /archives//html/Topband/2020-06/msg00056.html (8,136 bytes)
19. Re: Topband: RFI (score: 1): Author: Steve Lawrence via Topband <topband@contesting.com>; Date: Wed, 24 Jun 2020 14:12:21 -0700; Look here. GL - Steve WB6RSE Sounds of RFI <http://www.arrl.org/sounds-of-rfi> Hoping someone can help me identify this noise.It's on 160 80 40...most times stronger on 40.I called the power company.; /archives//html/Topband/2020-06/msg00057.html (7,373 bytes)
20. Re: Topband: RFI (score: 1): Author: fmoeves <fmoeves@twc.com>; Date: Wed, 24 Jun 2020 18:12:56 -0400; Thanks Steve. I think my power line guys need some training.. I wish I could use their detector for an hour or so. They keep telling me my area is very clean. I'll drive around some more see what I c; /archives//html/Topband/2020-06/msg00058.html (7,890 bytes)

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