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Total 790 documents matching your query.

261. Re: [RFI] Help finding a source (score: 1)
Author: JW via RFI <rfi@contesting.com>
Date: Thu, 5 Dec 2019 13:31:50 +0000 (UTC)
Like this? https://www.youtube.com/watch?v=C-S5ef-Ne6Y I fed the receivers speaker output into an oscilloscope and set the sweep to power line time base.  Because the noise spikes were synchronized w
/archives//html/RFI/2019-12/msg00020.html (8,950 bytes)

262. Re: [RFI] Metal Pole vs Wood Pole (score: 1)
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Thu, 5 Dec 2019 15:02:19 +0000
I can confirm Mike Martin's assessment regarding metal poles, or at least with the problem we found from an all metal cross-arm mounted on a wood pole. Can't find the document on the cross-arm's mfr
/archives//html/RFI/2019-12/msg00024.html (10,344 bytes)

263. Re: [RFI] Metal Pole vs Wood Pole (score: 1)
Author: JW via RFI <rfi@contesting.com>
Date: Thu, 5 Dec 2019 15:19:35 +0000 (UTC)
Metal poles - or do you guys mean those spun, compacted-concrete poles? We have a few concrete poles on distribution circuits that don't need guy wires on account of the concrete poles, when set deep
/archives//html/RFI/2019-12/msg00026.html (9,909 bytes)

264. Re: [RFI] RESEND - Fw: [PVRC] Help me identify my new RFI (score: 1)
Author: JW via RFI <rfi@contesting.com>
Date: Fri, 6 Dec 2019 22:14:12 +0000 (UTC)
Sounds like an AC line arc. Sounds like some I have tracked down here locally, Eric. de AA5CT -- My good friend Tm Shoppa, N3QE has run into a vexing RFI issue. He posed the  following on the PVRC re
/archives//html/RFI/2019-12/msg00034.html (8,398 bytes)

265. Re: [RFI] Dimmer Switch (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 03:30:29 +0000 (UTC)
Are you dimming incandescent lamps, or LED lamps? de AA5CT Thank you. 73, Ross K6GFJ _______________________________________________ RFI mailing list RFI@contesting.com http://lists.contesting.com/ma
/archives//html/RFI/2019-12/msg00040.html (7,757 bytes)

266. Re: [RFI] Dimmer Switch (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 03:48:45 +0000 (UTC)
Do they have to be incandescent? Can they be LED? Are you dimming incandescent lamps, or LED lamps? de AA5CT Thank you. 73, Ross K6GFJ _______________________________________________ RFI mailing list
/archives//html/RFI/2019-12/msg00042.html (8,054 bytes)

267. Re: [RFI] Dimmer Switch (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 04:05:08 +0000 (UTC)
Ross, I have found that using LED lamps minimized the RFI caused by a dimmer that was noisy with a regular bulb. Of course, not all installations are equal, therefore, YMMV. Do they have to be incand
/archives//html/RFI/2019-12/msg00044.html (9,441 bytes)

268. Re: [RFI] Dimmer Switch (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 04:36:22 +0000 (UTC)
The real test, Wes, is taking an AM BCB portable into the room with the dimmer - does it buzz in between stations? de AA5CT On Monday, December 9, 2019, 10:17:10 PM CST, wesattaway <wesattaway@bellso
/archives//html/RFI/2019-12/msg00050.html (11,296 bytes)

269. Re: [RFI] Dimmer Switch (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 17:35:49 +0000 (UTC)
What brand Howard? I have mostly only GE brand LED 'bulbs' here. I have noticed when near the GEs some 'noise' at VHF, but must be close, within a foot or so. de AA5CT On Tuesday, December 10, 2019,
/archives//html/RFI/2019-12/msg00061.html (9,878 bytes)

270. Re: [RFI] RFI Digest, Vol 203, Issue 15 (score: 1)
Author: Wes Stewart via RFI <rfi@contesting.com>
Date: Tue, 10 Dec 2019 23:22:23 +0000 (UTC)
I'm friendly with the RFI sleuth with our local electric coop (also a ham).  He tells me that ground level ultrasonic sniffers are pretty worthless.  Any physical obstruction attenuates the signal, a
/archives//html/RFI/2019-12/msg00067.html (8,119 bytes)

271. Re: [RFI] Tesla's Response to Solar Panel RFI (score: 1)
Author: jimk8mr--- via RFI <rfi@contesting.com>
Date: Sun, 15 Dec 2019 16:02:11 +0000 (UTC)
Suppose it really is a civil dispute between neighbors. How would the neighbors resolve the problem if they both chose to do so? Neighbors cannot be expected to have the knowledge to fix such a techn
/archives//html/RFI/2019-12/msg00084.html (10,153 bytes)

272. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1)
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Mon, 16 Dec 2019 21:59:35 +0000
She didn't understand because didn't talk to the right folks at the FCC. She spoke to their lawyers not enforcement. She needs to understand the neighbor may have a right to operate the solar equipme
/archives//html/RFI/2019-12/msg00120.html (17,500 bytes)

273. Re: [RFI] compact fluorescent bulbs (score: 1)
Author: Michael Aust via RFI <rfi@contesting.com>
Date: Tue, 17 Dec 2019 00:27:27 +0000 (UTC)
Funny storyMost LED Lights that cause RFI cannot take nearby HF 1500watt transmitters near them and Blow out with high HF exposureProblem solved! No RFI  How that for justice !Neighbor replaced them
/archives//html/RFI/2019-12/msg00130.html (11,068 bytes)

274. Re: [RFI] RV Converter Issue (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 17 Dec 2019 01:18:05 +0000 (UTC)
re: " I do not trust claims of a true sinewave inverter for $50! ! Copper and iron required for the output transformer " None of these inverters is close to the old "static" inverters built over 40 y
/archives//html/RFI/2019-12/msg00136.html (12,350 bytes)

275. Re: [RFI] Can Anyone ID This Noise? (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Tue, 17 Dec 2019 22:25:55 +0000 (UTC)
With the video marked as "Private" I don't think anyone can view it. de AA5CT . . On Tuesday, December 17, 2019, 3:44:16 PM CST, Larry Burke <wi5a@sbcglobal.net> wrote: Anyone know what this noise is
/archives//html/RFI/2019-12/msg00142.html (7,944 bytes)

276. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Wed, 18 Dec 2019 03:41:45 +0000 (UTC)
There are specs and standards for radiated EMI as well as antenna equipment (eg as untuned pickup loops and active E-field probes) designed to develop standard 'gain' for HF measurement receivers use
/archives//html/RFI/2019-12/msg00151.html (30,615 bytes)

277. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1)
Author: Michael Aust via RFI <rfi@contesting.com>
Date: Wed, 18 Dec 2019 05:32:13 +0000 (UTC)
Since these RFI issues from Solar seem to long and drawn out, one thing to consider is to use Web based SDR receivers remotely An application like  CatSyncSDR works with allowing to interface with yo
/archives//html/RFI/2019-12/msg00153.html (31,613 bytes)

278. Re: [RFI] Question: Conducted vs. Radiated Emissions (score: 1)
Author: Thomas Hoyer via RFI <rfi@contesting.com>
Date: Wed, 18 Dec 2019 13:09:42 +0000 (UTC)
Typically conducted emissions are measured using a clamp on coupler and are lower in frequency. In the DO-160 I've been involved with, testing and the range for conducted emissions is typically 150kh
/archives//html/RFI/2019-12/msg00156.html (8,752 bytes)

279. Re: [RFI] Update: Tesla's Response to Solar Panel RFI (score: 1)
Author: AA5CT via RFI <rfi@contesting.com>
Date: Wed, 18 Dec 2019 14:39:22 +0000 (UTC)
re: "the FCC long ago decided not to address radiated emissions below 30 MHz " I didn't say it had to be an FCC accepted rule. I gave an example of a 'service' that has such specs. I propose somethin
/archives//html/RFI/2019-12/msg00158.html (35,162 bytes)

280. Re: [RFI] RFI Digest, Vol 203, Issue 37 (score: 1)
Author: Wes Stewart via RFI <rfi@contesting.com>
Date: Wed, 18 Dec 2019 14:46:57 +0000 (UTC)
Maybe it goes unmentioned because for awards purposes anyway, it is totally against the spirit, if not the actual rules. Wes  N7WS Date: Wed, 18 Dec 2019 05:32:13 +0000 (UTC) From: Michael Aust <ava6
/archives//html/RFI/2019-12/msg00159.html (7,627 bytes)


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