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References: [ +from:k8tb@bosscher.org: 25 ]

Total 25 documents matching your query.

1. Re: [RFI] Persistence Pays Off in eliminating a Nasty RFI Source (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sat, 12 Dec 2009 08:46:56 -0500
I once traced interference to a 2 meter repeater to one of those preamps in the loft of the garage. Six miles away! The owner was only so-so to deal with. They had switched to cable, and this was a 3
/archives//html/RFI/2009-12/msg00025.html (8,303 bytes)

2. Re: [RFI] Motherboard RFI (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sat, 02 Jan 2010 13:36:04 -0500
Peter, is the noise reduction caused by your fingers conductively touching the caps, or by downward pressure? If the later, use an insulated alignment tool and press down on different areas of the MB
/archives//html/RFI/2010-01/msg00003.html (7,839 bytes)

3. Re: [RFI] Power line noise (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Mon, 08 Feb 2010 19:38:23 -0500
Ash, the other have pointed out that you need to go higher frequency. Check around your local repeaters and someone must have one of those really cute FT-817's. Has 144 and 432 built in. Then use a 2
/archives//html/RFI/2010-02/msg00011.html (7,806 bytes)

4. Re: [RFI] Tower Intermod - Control Lines (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Thu, 22 Jul 2010 17:37:09 -0400
Ed, How far away are you from the AM broadcast stations? If this was the US, there is a Google Earth app that shows this. Keep in mind that a possibility is that something on your system is picking u
/archives//html/RFI/2010-07/msg00019.html (7,700 bytes)

5. Re: [RFI] ATT Uverse (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Tue, 11 Jan 2011 18:59:40 -0500
Uverse is a copper fed very high speed dsl. The fiber comes in to a neighbor node box (rather noticeable). This is where the IP data is changed from fiber to copper. The reasonable length of copper f
/archives//html/RFI/2011-01/msg00099.html (8,125 bytes)

6. Re: [RFI] FW: Topband: Exciting noise sources (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sun, 27 Mar 2011 13:14:38 -0400
Tim and Larry, This is a great read... So who bought lunch/dinner? I'll bet there were some happy crew members. tom k8tb _______________________________________________ RFI mailing list RFI@contestin
/archives//html/RFI/2011-03/msg00093.html (6,964 bytes)

7. Re: [RFI] FW: Topband: Exciting noise sources (Tim Duffy K3LR) (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Mon, 28 Mar 2011 18:58:21 -0400
Frank, Have you ever experimented with using the very common FT-817 and a 2 meter/440 beam? You can turn the AGC off, and receive in the AM mode. I just might have to go outside and "find" a bad pole
/archives//html/RFI/2011-03/msg00112.html (8,364 bytes)

8. Re: [RFI] TV turns on-off when TX (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sat, 31 Dec 2011 16:03:09 -0500
Steve, Find where the IR sensor is on the TV. Cover that with electrical tape and make sure it is covered by testing it with the remote control. Now, key up your radio. I have seen interference to IR
/archives//html/RFI/2011-12/msg00029.html (8,161 bytes)

9. Re: [RFI] Lightning Protection (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sun, 01 Jul 2012 17:34:21 -0400
If you believe in static dissipation arrays, you can build your own very inexpensively: http://www.michiganbroadcasttowers.com/broadcast/static.htm tom bosscher k8tb _________________________________
/archives//html/RFI/2012-07/msg00011.html (6,803 bytes)

10. Re: [RFI] AM Radio Interference On 75 meters (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Tue, 18 Sep 2012 16:00:19 -0400
I don't think it is KFBK. My guess is KCTC, on 1320 KHz. 3rd harmonic is 3960, and even cooler, KCTC operates from 2 different sites. The night site is 5 kw and is located by Antelope North and Antel
/archives//html/RFI/2012-09/msg00124.html (10,994 bytes)

11. Re: [RFI] Signal on 433.875 (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Thu, 15 Nov 2012 21:34:15 -0500
That's a very common "Part 15" frequency. we once had an impromptu local contest to see who could the most number of signals. Weather stations, you name it. BTW, I think I can hear well over 100 at m
/archives//html/RFI/2012-11/msg00038.html (7,779 bytes)

12. Re: [RFI] RFI Noise - Part II (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Sat, 06 Jul 2013 16:45:53 -0400
I have to drop in my story, which was solved 2 weeks ago. On our local repeater, a fellow ham who works at the large local hospital, was concerned as one of the doctors there was being charged with i
/archives//html/RFI/2013-07/msg00011.html (12,220 bytes)

13. Re: [RFI] Deja BUZZZ.. vu (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Fri, 27 Sep 2013 17:38:13 -0400
Ron, What Jim says. We had a case like this in Holland, Michigan. At first the neighbor with the noise had an attitude. Then, we very nicely told him we don't care. For one week. Then when we come ba
/archives//html/RFI/2013-09/msg00086.html (8,745 bytes)

14. [RFI] If you're ATT, you can do something about RFI... (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Mon, 28 Oct 2013 16:26:23 -0400
Interesting read... "http://transition.fcc.gov/Daily_Releases/Daily_Business/2013/db1028/DA-13-2077A1.pdf" But if it is on 75 meters? Tom K8TB _______________________________________________ RFI mail
/archives//html/RFI/2013-10/msg00040.html (6,706 bytes)

15. Re: [RFI] Grow-light.. (score: 1)
Author: K8TB <k8tb@bosscher.org>
Date: Fri, 28 Mar 2014 10:31:54 -0400
I tracked down a very noisy grow light in Holland, MI. I could zero in on the house from their driveway. At the time I found the house, the home owner was in his garage, door open, working. He saw me
/archives//html/RFI/2014-03/msg00242.html (8,871 bytes)

16. Re: [RFI] LED Street lights (score: 1)
Author: Tom <k8tb@bosscher.org>
Date: Fri, 10 Oct 2014 08:28:34 -0400
The last time I had a wide area power, it was amazing what signals I could hear. (and yes, the shack K3 has a backup battery supply, and for logging, I used, wait for it, a pencil!). Tom K8TB _______
/archives//html/RFI/2014-10/msg00009.html (7,994 bytes)

17. Re: [RFI] what causes capacitor bank interference? (score: 1)
Author: Tom <k8tb@bosscher.org>
Date: Mon, 16 Jan 2017 21:28:35 -0500
Jamie, All of the below! Many reasons, but when you are dealing with 7200 or 14,400 volts and a whole lot of amps, doesn't take much to cause noise. Another common cause is very simply the clips that
/archives//html/RFI/2017-01/msg00046.html (7,407 bytes)

18. Re: [RFI] FCC issues a Notice of Violation to Solar City for RFI Inteferance (score: 1)
Author: Tom <k8tb@bosscher.org>
Date: Fri, 17 Mar 2017 15:09:05 -0400
1. This is great news. 2. Solar City needs to Hire Jim Brown as a consultant! Tom K8TB _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/
/archives//html/RFI/2017-03/msg00047.html (9,030 bytes)

19. Re: [RFI] FM Wireless Mic on 144.160MHz (score: 1)
Author: Tom <k8tb@bosscher.org>
Date: Fri, 28 Aug 2020 22:20:40 -0400
There is a good possibility that the 144.16 is not the primary frequency, but a sub-harmonic of the output (times 4, 5  or 6). Time to be a good neighbor, and help them with it. Many folks, for whate
/archives//html/RFI/2020-08/msg00047.html (9,185 bytes)

20. Re: [RFI] 433.92 remote control, legal? (score: 1)
Author: Tom <k8tb@bosscher.org>
Date: Thu, 3 Sep 2020 13:45:19 -0400
Yes. it is used under Part 15. I have an Icom IC-9700. Whats really fun is to have that on the Sat antenna, which is CP, and listen from 433.8 t0 .95. I can hear HUNDREDS of signals. I've even dialed
/archives//html/RFI/2020-09/msg00015.html (7,445 bytes)

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