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Total 35 documents matching your query.

1. [RFI] Noise - where do I start? (score: 1): Author: "thoyer" <thoyer1@verizon.net>; Date: Sun, 25 Sep 2016 08:56:36 -0400; Haven't been active much of the summer. In the recent weeks I started noticing a very broad band noise. Link to a video file (large). www.thdesignsinc.com/noise There are times when it totally disapp; /archives//html/RFI/2016-09/msg00042.html (6,626 bytes)
2. Re: [RFI] Noise - where do I start? (score: 1): Author: "James Gordon Beattie, Jr." <w2ttt@att.net>; Date: Sun, 25 Sep 2016 06:24:02 -0700; Tom, If you can, and if you suspect an interview home source, put your rig on battery and cut power to the house. It is always good to clear up in house stuff first unless you have a specific issue t; /archives//html/RFI/2016-09/msg00043.html (8,633 bytes)
3. Re: [RFI] Noise - where do I start? (score: 1): Author: "James Gordon Beattie, Jr." <w2ttt@att.net>; Date: Sun, 25 Sep 2016 06:42:27 -0700; Tom, Needed more coffee... Saw the video. Do your neighbors have new solar panels? Inverters on the panels could be in play. Does it quiet down after dusk? Try taking a portable radio for a walk.; /archives//html/RFI/2016-09/msg00044.html (8,251 bytes)
4. Re: [RFI] Noise - where do I start? (score: 1): Author: "thoyer" <thoyer1@verizon.net>; Date: Sun, 25 Sep 2016 09:57:02 -0400; Hi Gordon, Can't say for sure about the solar panels. I'll have to take a tour of the neighborhood with a portable. About 10 minutes after I made the posting, noise stopped. All bands returned to the; /archives//html/RFI/2016-09/msg00046.html (10,009 bytes)
5. Re: [RFI] Noise - where do I start? (score: 1): Author: "Michael C Martin" <mike@rfiservices.com>; Date: Sun, 25 Sep 2016 10:07:01 -0400; That sounds like power line noise to me. More than one Michael C. Martin RFI Services PO Box 411 Traceys Landing, MD 20779 240.508.3760 mike@rfiservices.com www.rfiservices.com --Original Message-- F; /archives//html/RFI/2016-09/msg00047.html (11,091 bytes)
6. Re: [RFI] Noise - where do I start? (score: 1): Author: "James Gordon Beattie, Jr." <w2ttt@att.net>; Date: Sun, 25 Sep 2016 07:06:10 -0700; Tom, I feel your pain. It is precious time and really annoying when deprecated by noise. Please keep us informed and we'll try to help. 73, Gordon Beattie, W2TTT 201.314.6964 Sent from AT&T Mail on; /archives//html/RFI/2016-09/msg00048.html (10,097 bytes)
7. Re: [RFI] Noise - where do I start? (score: 1): Author: "James Gordon Beattie, Jr." <w2ttt@att.net>; Date: Sun, 25 Sep 2016 07:08:29 -0700; Michael, Likely, but from what? Hunting opportunity. 73, Gordon Beattie, W2TTT 201.314.6964 Sent from AT&T Mail on Android From:"Michael C Martin" <mike@rfiservices.com> Date:Sun, Sep 25, 2016 at 10:; /archives//html/RFI/2016-09/msg00049.html (11,393 bytes)
8. Re: [RFI] Noise - where do I start? (score: 1): Author: "Frank N. Haas KB4T" <utility.rfi.pro@gmail.com>; Date: Sun, 25 Sep 2016 11:03:32 -0400; All this speculation just muddies the water. Keep an open mind. Don't assume anything yet because you simply don't know yet if the problem is in a privately owned structure or a utility problem. Unti; /archives//html/RFI/2016-09/msg00051.html (9,846 bytes)
9. Re: [RFI] Noise - where do I start? (score: 1): Author: "thoyer" <thoyer1@verizon.net>; Date: Sun, 25 Sep 2016 12:12:45 -0400; Thanks for the replies guys. Hooked up the spectrum analyzer and the 40 meter vertical. New video uploaded to www.thdesignsinc.com/noise Tom All this speculation just muddies the water. Keep an open; /archives//html/RFI/2016-09/msg00053.html (10,825 bytes)
10. Re: [RFI] Noise - where do I start? (score: 1): Author: "Frank N. Haas KB4T" <utility.rfi.pro@gmail.com>; Date: Sun, 25 Sep 2016 12:36:54 -0400; The movie file is not viewable on my phone for some reason. For the record here and to make the data searchable for future sufferers, please summarize the findings with your spectrum analyzer. Of par; /archives//html/RFI/2016-09/msg00054.html (9,754 bytes)
11. Re: [RFI] Noise - where do I start? (score: 1): Author: JW via RFI <rfi@contesting.com>; Date: Sun, 25 Sep 2016 17:08:52 +0000 (UTC); Ah. A QT (QuickTime) format video. I turned it over to YouTube to convert and host - here it is: https://www.youtube.com/watch?v=l_GiDvUUWZY&feature=youtu.be A comment: Sounds like very much like a; /archives//html/RFI/2016-09/msg00055.html (10,381 bytes)
12. Re: [RFI] Noise - where do I start? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Sun, 25 Sep 2016 10:30:06 -0700; Here's a "how to start AND finish. http://k9yc.com/KillingReceiveNoise.pdf One thing I strongly suggest is that you either try to get that spectrum display into averaging mode or find another spectru; /archives//html/RFI/2016-09/msg00056.html (9,845 bytes)
13. Re: [RFI] Noise - where do I start? (score: 1): Author: JW via RFI <rfi@contesting.com>; Date: Sun, 25 Sep 2016 17:31:29 +0000 (UTC); Tom, Can you put the Spec An into Zero span mode and use Line Trigger? Try 10 kHz BW first followed by 100 kHz or so too. 2nd vid was uploaded (and converted from QT format too) here: https://www.you; /archives//html/RFI/2016-09/msg00057.html (12,476 bytes)
14. [RFI] Noise - where do I start? (score: 1): Author: Lee STRAHAN <k7tjr@msn.com>; Date: Sun, 25 Sep 2016 17:55:10 +0000; Tom and RFI guys, One other trick that may be available to you with your spectrum analyzer is to sync the sweep with the line frequency. Most analyzers have this capability. Its just marked "Line" in; /archives//html/RFI/2016-09/msg00058.html (8,369 bytes)
15. Re: [RFI] Noise - where do I start? (score: 1): Author: Dave Cole <dave@nk7z.net>; Date: Sun, 25 Sep 2016 10:59:02 -0700; While Frank and I don't always agree on how much one should speculate, I must agree with Frank in this case... Too much speculation, to early. Do your power off test of your home, walk the area, bor; /archives//html/RFI/2016-09/msg00059.html (11,830 bytes)
16. [RFI] Noise - where do I start? (score: 1): Author: "Gary Peterson" <kzerocx@rap.midco.net>; Date: Sun, 25 Sep 2016 17:51:32 -0600; I have also had very good success with doing this. Many oscilloscopes, even old ones, have the option of using the power line as a horizontal sweep source. If LINE is selected for the horizontal swee; /archives//html/RFI/2016-09/msg00060.html (8,654 bytes)
17. Re: [RFI] Noise - where do I start? (score: 1): Author: "thoyer" <thoyer1@verizon.net>; Date: Sun, 25 Sep 2016 20:09:11 -0400; Thank you all for the many good suggestions. I will run the line sync and audio sync tests soon and report my findings to the group. As of right now the noise seems to have subsided but was present m; /archives//html/RFI/2016-09/msg00061.html (10,604 bytes)
18. Re: [RFI] Noise - where do I start? (score: 1): Author: Dave Cole <dave@nk7z.net>; Date: Sun, 25 Sep 2016 17:25:46 -0700; Although I would expect the behavior to be opposite, (quiet during rain, and noise when dry), I'd grab a three element beam on 2 Meters, AM, and start pointing it at the poles closest to your house..; /archives//html/RFI/2016-09/msg00062.html (8,925 bytes)
19. Re: [RFI] Noise - where do I start? (score: 1): Author: JW via RFI <rfi@contesting.com>; Date: Mon, 26 Sep 2016 01:08:08 +0000 (UTC); Tom, From my perspective we are missing a few key pieces of information. Information such as: 1) What kind of antenna was used on the radio in the first video? 80m dipole? 20-15-10 meter beam? etc.; /archives//html/RFI/2016-09/msg00063.html (11,405 bytes)
20. Re: [RFI] Noise - where do I start? (score: 1): Author: "Frank N. Haas KB4T" <utility.rfi.pro@gmail.com>; Date: Sun, 25 Sep 2016 22:17:32 -0400; Questions of greater importance: 1. Is the affected party equipped to do a search that will produce useful results? A battery operated AM-FM-SW-VHF receiver with a useful signal strength indicator an; /archives//html/RFI/2016-09/msg00064.html (10,264 bytes)

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