Mail Archive Search: <+from:rfi@contesting.com>

Results:

References: [ +from:rfi@contesting.com: 790 ]

Total 790 documents matching your query.

281. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Wed, 18 Dec 2019 16:48:30 +0000; Tony, In POWER line RFI issues with hams on HF bands, the only part of PART 15 that applies is the harmful interference clause. This has worked effectively for decades. So I am assuming, and I could; /archives//html/RFI/2019-12/msg00162.html (26,013 bytes)
282. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Wed, 18 Dec 2019 20:28:50 +0000 (UTC); Are the HFT guys (the High Frequency traders on Wall Street, you know, 'quants' et al) still testing on the HF bands, with the intent to use that medium to execute trades with less than the delays se; /archives//html/RFI/2019-12/msg00167.html (9,440 bytes)
283. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1): Author: Leonard Halvorsen via RFI <rfi@contesting.com>; Date: Wed, 18 Dec 2019 16:22:25 -0500; If you have access to a spectrum analyzer, look for spikes in the Civil Aviation Band. If you find any, report them to the FAA. They have ZERO tolerance for interference in their spectrum. Things hav; /archives//html/RFI/2019-12/msg00172.html (9,639 bytes)
284. Re: [RFI] Thoughts on What This Is? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Thu, 19 Dec 2019 13:27:43 +0000 (UTC); Larry, my old Litton MinuteMaster (still running!) microwave oven makes a similar cyclic noise similar to that when running. Does this noise appear at what could be somebody's mealtime? Are you near; /archives//html/RFI/2019-12/msg00182.html (9,223 bytes)
285. Re: [RFI] Tesla's Response to Solar Panel RFI (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Mon, 23 Dec 2019 15:29:19 +0000; "... yes, they are changing their designs. These field retrofits are expensive." Ed, How expensive are the retrofit kits? I was not talking about "expensive retrofits" being a design change. That ind; /archives//html/RFI/2019-12/msg00225.html (14,706 bytes)
286. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1): Author: Leonard Halvorsen via RFI <rfi@contesting.com>; Date: Mon, 23 Dec 2019 12:26:55 -0500; Don't forget that the navigation signals from the VOR/VORTAC Stations are received in THE AIRPLANE at altitude, from great distances. <https://acronyms.thefreedictionary.com/VORTAC> A small interferi; /archives//html/RFI/2019-12/msg00226.html (12,068 bytes)
287. Re: [RFI] Solar Panel RFI Update From Tesla: 12/26/19 (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Fri, 27 Dec 2019 16:06:44 +0000; Jim's statement was perfectly clear in caps. But I can't make heads or tails from the response. The previous statement's from Ed at ARRL Labs also indicate that solar vendors are initially working wi; /archives//html/RFI/2019-12/msg00239.html (12,108 bytes)
288. [RFI] Tesla interference (score: 1): Author: RVZ via RFI <rfi@contesting.com>; Date: Fri, 27 Dec 2019 16:16:23 +0000 (UTC); Is this the same Tesla that manufactures automobiles? 73, Dick- K9OM All: I received an update from Tesla's Ashley Holmen today. She once again said that Tesla and SolarEdge agree that they are not l; /archives//html/RFI/2019-12/msg00240.html (7,024 bytes)
289. Re: [RFI] FCC Limits on Harmful Interference: Clarification (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Mon, 30 Dec 2019 14:31:48 +0000; Kim is absolutely correct! We do NOT want a measured level of interference to define "harmful interference". The level of RFI to a big gun DXer or contester is going to be something completely differ; /archives//html/RFI/2019-12/msg00255.html (13,117 bytes)
290. Re: [RFI] FCC Limits on Harmful Interference: Clarification (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Tue, 31 Dec 2019 13:21:07 +0000; Kim has it right again! Kurt, the worded definition is better than any numbers. Why? Because all the utility needs to do is find an instrument that shows the number the FCC wants it to be in order to; /archives//html/RFI/2019-12/msg00258.html (11,365 bytes)
291. Re: [RFI] Grow Lights (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Tue, 7 Jan 2020 19:46:27 +0000 (UTC); DFing at these frequencies is more art than science; I can locate a source to an individual house, but it takes taking a number of bearings as one 'walks the sidewalk' on the opposite side of the str; /archives//html/RFI/2020-01/msg00016.html (10,030 bytes)
292. Re: [RFI] Grow Lights (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Tue, 7 Jan 2020 19:57:15 +0000; Karin, We have not yet had any grow light problems yet in our service area. On power-line noise tracking it's basically required to change the frequency band you're using to higher and higher frequen; /archives//html/RFI/2020-01/msg00017.html (9,774 bytes)
293. Re: [RFI] Grow Lights (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Tue, 7 Jan 2020 20:37:10 +0000 (UTC); re: "Impulse noise is best tracked at the highest frequencies where we can hear it -- I start around 160 MHz, then go up around 500 MHz when I get close." ALL well and good, Jim. What's the most dist; /archives//html/RFI/2020-01/msg00020.html (12,002 bytes)
294. Re: [RFI] Quidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Wed, 8 Jan 2020 10:53:45 +0000 (UTC); I have found power line noise sources on 160 all the way out to 5 miles. Here's a list of some of the more notable sources found over the last decade or so: https://powerlinenoiseallentexas.wordpress; /archives//html/RFI/2020-01/msg00040.html (9,496 bytes)
295. Re: [RFI] Grow Lights (score: 1): Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>; Date: Wed, 8 Jan 2020 14:12:13 +0000; Since it's in every city and every neighborhood, my guess is it's probably the service port for the system techs for the ISP. We have "FBI Surveillance Van 7" in our neighborhood. 73, de ed -K0iL "I; /archives//html/RFI/2020-01/msg00046.html (9,912 bytes)
296. Re: [RFI] Quidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Thu, 9 Jan 2020 17:43:10 +0000 (UTC); Don, Can you feed this video's audio into the analysis software and see what it gives? As can be clearly seen there is a 'pulse' for each 1/2 cycle of the AC waveform, or two pulses for a complete cy; /archives//html/RFI/2020-01/msg00056.html (13,032 bytes)
297. Re: [RFI] Quidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Thu, 9 Jan 2020 23:50:16 +0000 (UTC); One 'arc' strike per half cycle is visible (like a spark gap transmission), yet, not an arc. Have you ever seen an O-scope used this way? Synced to the line rate? To see the strikes per cycle? This m; /archives//html/RFI/2020-01/msg00060.html (15,488 bytes)
298. Re: [RFI] Quidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Fri, 10 Jan 2020 13:35:59 +0000 (UTC); Don, Toss this into the mix: Three phases times 2 ppc (pulses or strikes per cycle) gives those six 'peaks' seen in the 16.66 ms cycle duration between the cursors in that screen capture. Take a look; /archives//html/RFI/2020-01/msg00063.html (11,016 bytes)
299. Re: [RFI] Quidance on finding noise? (score: 1): Author: AA5CT via RFI <rfi@contesting.com>; Date: Fri, 10 Jan 2020 23:03:22 +0000 (UTC); Now, in all fairness Jim, he didn't "track that one to ground" did he? A 'strike per half cycle' of a sinusoid is a pretty good indicator of an arc. Not only is that common sense, it falls in line wi; /archives//html/RFI/2020-01/msg00067.html (9,784 bytes)
300. [RFI] W1RFI (score: 1): Author: nm8rmedic via RFI <rfi@contesting.com>; Date: Sat, 11 Jan 2020 10:24:10 -0500; Ed,I was contacted yesterday by the Lansing State Journal for comments on RFI due to grow operations. After we wrapped up the interview, I asked the reporter how she ascertained I was an amateur rad; /archives//html/RFI/2020-01/msg00071.html (6,818 bytes)

Current List: 281 - 300
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20]