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Total 5 documents matching your query.

1. [RFI] can anyone help identify this RFI spectrum? (score: 1): Author: Matt NQ6N <matt@nq6n.com>; Date: Tue, 24 Apr 2018 07:17:40 -0500; I've been noticing this RFI and I'm wondering if anyone can identify it based on the attached video. It is the pattern in the middle of both waterfalls. There is also something similar looking but re; /archives//html/RFI/2018-04/msg00012.html (6,831 bytes)
2. Re: [RFI] can anyone help identify this RFI spectrum? (score: 1): Author: "Dave Cole (NK7Z)" <dave@nk7z.net>; Date: Tue, 24 Apr 2018 06:02:28 -0700; Looks like s SMPS, (Switching mode Power Supply), and could be any number of things... Start by doing a power off test of your own home, putting your radio on battery power first. If the RFI continue; /archives//html/RFI/2018-04/msg00013.html (9,262 bytes)
3. Re: [RFI] can anyone help identify this RFI spectrum? (score: 1): Author: David Eckhardt <davearea51a@gmail.com>; Date: Tue, 24 Apr 2018 17:06:09 +0000; I believe the diagnosis of a SWPS is highly likely correct. The pointers given are also excellent. Don't forget, once you've located an area, a battery-powered portable radio is 'your friend'. Dave -; /archives//html/RFI/2018-04/msg00014.html (8,639 bytes)
4. Re: [RFI] can anyone help identify this RFI spectrum? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Tue, 24 Apr 2018 10:13:28 -0700; Or maybe a variable-speed motor controller, which is used in anything from an HVAC system to a process controller in mfg to some farm equipment. 73, Jim K9YC _________________________________________; /archives//html/RFI/2018-04/msg00015.html (8,280 bytes)
5. Re: [RFI] can anyone help identify this RFI spectrum? (score: 1): Author: "Dave Cole (NK7Z)" <dave@nk7z.net>; Date: Tue, 24 Apr 2018 10:53:06 -0700; Yes, could be a motor as well... I am sure glad I told the heater folks to put in a standard motor here when we replaced our heater... Give it AC and it works, no speed controls, just moves air, not; /archives//html/RFI/2018-04/msg00016.html (8,636 bytes)

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