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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[RFI\]\s+RFI\s+from\s+variable\s+speed\s+drive\s+1\.1\s+miles\s+away\s+\(very\s+interesting\s+case\)\.\s*$/: 8 ]

Total 8 documents matching your query.

1. [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Tue, 15 Nov 2022 20:57:24 -0500
Today I tracked down new RFI at my QTH on 160 meters. I was able to hear the RFI from my driveway using my portable flag with the DX Engineering preamp and it indicated the RFI was arriving from the
/archives//html/RFI/2022-11/msg00013.html (8,370 bytes)

2. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: <nlsa@nlsa.com>
Date: Thu, 17 Nov 2022 07:50:07 -0500
Dear Don - Could you post an image of what the interference looked like in the frequency domain? 73, W9IP Today I tracked down new RFI at my QTH on 160 meters. I was able to hear the RFI from my driv
/archives//html/RFI/2022-11/msg00014.html (9,364 bytes)

3. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 17 Nov 2022 08:34:39 -0500
Hi Mike (W9IP), Are you able to see my youtube video as everything shown in my video is in the frequency domain. The top display is the RF spectrum display with a waterfall of it right below, and the
/archives//html/RFI/2022-11/msg00015.html (12,069 bytes)

4. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: <nlsa@nlsa.com>
Date: Thu, 17 Nov 2022 08:50:03 -0500
Don Silly me, I didnt read all the way to the end of your post; didnt see the video link. Sorry. W9IP From: Don Kirk <wd8dsb@gmail.com> Sent: Thursday, November 17, 2022 8:35 AM To: nlsa@nlsa.com Cc:
/archives//html/RFI/2022-11/msg00016.html (11,883 bytes)

5. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Wes Stewart via RFI <rfi@contesting.com>
Date: Thu, 17 Nov 2022 15:52:40 +0000 (UTC)
This is very interesting to me as I've posed an earlier, as yet unanswered, question about potential RFI in a Bosch inverter-driven compressor heat pump,.  I am considering this as an alternative to
/archives//html/RFI/2022-11/msg00018.html (11,225 bytes)

6. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Thu, 17 Nov 2022 11:27:06 -0800
On 11/17/2022 7:52 AM, Wes Stewart via RFI wrote: This is very interesting to me as I've posed an earlier, as yet unanswered, question about potential RFI in a Bosch inverter-driven compressor heat p
/archives//html/RFI/2022-11/msg00020.html (9,791 bytes)

7. [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Lee STRAHAN <k7tjr@msn.com>
Date: Fri, 18 Nov 2022 02:24:12 +0000
Hi Guys Well, very interesting to me as well. I have been trying to get a VFD drive situation "Fixed' for about 5 years now. It took me a year to figure out why I could not just hear a buzz on AM for
/archives//html/RFI/2022-11/msg00021.html (14,049 bytes)

8. Re: [RFI] RFI from variable speed drive 1.1 miles away (very interesting case). (score: 1)
Author: Don Kirk <wd8dsb@gmail.com>
Date: Thu, 17 Nov 2022 23:39:20 -0500
Hi Lee, I've been involved with a few different industrial RFI issues involving VFDs where we installed a commercial power line filter on the 3 phase input power feed to the VFD and it resolved the p
/archives//html/RFI/2022-11/msg00022.html (17,334 bytes)

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