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References: [ +from:qrv@kd4e.com: 263 ]

Total 263 documents matching your query.

201. Re: [RFI] Charge controllers (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 16 Aug 2019 12:32:39 -0400
I'm going back a few years when they had a much more limited product range and less competition. I'd never heard of Genasun until mentioned here - if that gives you a sense for the several years ago
/archives//html/RFI/2019-08/msg00030.html (8,208 bytes)

202. Re: [RFI] Need high wattage inverter without RFI issues. - Suggestions? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 17 Aug 2019 18:04:18 -0400
GoWISE Power-On PS1003 Pure SINE Wave Inverter 2000w Cont/4000w Peak seems OK. I've only done casual testing with it in a Prius and an extension cord into the house - swapping appliances from time to
/archives//html/RFI/2019-08/msg00032.html (8,832 bytes)

203. Re: [RFI] Suggestions for an RFI-clean battery charger/maintainer (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Mon, 14 Oct 2019 20:06:24 -0400
I have a Ampeak Smart Charger & have often run it in the radio room while on the air. I haven't noticed any RFI. You might also look at IOTA products. kd4e Hi, I found a bad battery charger at my nei
/archives//html/RFI/2019-10/msg00016.html (8,404 bytes)

204. Re: [RFI] Spectrum Cable Boxes (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 10 Nov 2019 21:28:35 -0500
What about a battery with an analog trickle charger? The analog trickle charger should be RF-quiet. And wouldn't the battery isolate any PS RFI? David KD4E Update to the Spectrum Cable box testing, W
/archives//html/RFI/2019-11/msg00024.html (7,824 bytes)

205. Re: [RFI] FCC Complaint Filing (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 24 Nov 2019 14:50:56 -0500
I can't tell from their page ... https://airspy.com/download/ Is SpectrumSpy available for Linux or limited to a MS version of windows? kd4e No connection to AIRSPY other than using their products. T
/archives//html/RFI/2019-11/msg00104.html (12,594 bytes)

206. [RFI] RFI quiet dimmable green LED 921 replacement for car? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 26 Jan 2020 19:40:53 -0500
I want to replace the green LEDs (921 replacements) in my dash with RFI quiet dimmable green LED's 921. I am concerned about RFI from the bulb circuit. Should I be? If so, can anyone recommend a bran
/archives//html/RFI/2020-01/msg00137.html (6,752 bytes)

207. [RFI] Anyone have a guess as to the source of this noise? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 20 Feb 2020 21:04:01 -0500
Anyone have a guess as to the source of this noise? I'm hearing it on HF in SSB mode. Loudest on 160, loud on 80, 40, & 20. Starts to fade in 15 & 10. There, but really weak, on 6m. If I turn on the
/archives//html/RFI/2020-02/msg00107.html (7,668 bytes)

208. Re: [RFI] Anyone have a guess as to the source of this noise? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Thu, 20 Feb 2020 21:47:03 -0500
Good point ... How about this? AM mode on 14.256 "http://nevils-station.com/stuff/sounds/20feb2020-14256-radiostatic2.m4a" kd4e For my purposes, I need it demodulated with an "envelope detector", thi
/archives//html/RFI/2020-02/msg00110.html (8,705 bytes)

209. Re: [RFI] Arc-fault breakers (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 23 Feb 2020 11:40:16 -0500
In our area bedrooms are required, in new construction, to have the AFCI (Awful Faulty Circuit Interrupters) installed. The justification for these quirky devices is to detect low-level failures in w
/archives//html/RFI/2020-02/msg00141.html (9,498 bytes)

210. [RFI] RFI-free Vehicle 5v USB Adapter? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 14 Mar 2020 19:08:06 -0400
I just discovered that the 5v USB adapter I installed in my '86 Suburban is a RFI-monster. If the USB cable is anywhere near a radio it wipes-out SW. Has anyone found brands or specific models that b
/archives//html/RFI/2020-03/msg00031.html (6,627 bytes)

211. Re: [RFI] RFI-free Vehicle 5v USB Adapter? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 14 Mar 2020 21:09:14 -0400
Thanks! The principles there are good but his links to recommended products are now 5 years old. Manufacturing standards change real fast. I'm hoping for a product someone has purchased and tested re
/archives//html/RFI/2020-03/msg00033.html (8,378 bytes)

212. Re: [RFI] RFI-free Vehicle 5v USB Adapter? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 14 Mar 2020 23:51:09 -0400
The current noisy adapter provides a 5v 2.1a USB port for cellphone, and other device, charging plus a digital battery voltage display. It's also connected to a standard vehicle cigar/accessory plug.
/archives//html/RFI/2020-03/msg00035.html (8,796 bytes)

213. Re: [RFI] RFI-free Vehicle 5v USB Adapter? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 15 Mar 2020 17:46:53 -0400
I'm going to try this, in a metal case, with twisted wire and toroids on the input and output ... https://www.amazon.com/Converter-DROK-Regulator-Inverter-Transformer/dp/B01NALDSJ0/ref=sr_1_3 Actuall
/archives//html/RFI/2020-03/msg00037.html (9,137 bytes)

214. [RFI] Noisy Display - Quiet DC-Dc Converter (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 2 May 2020 19:21:35 -0400
While testing a just-arrived TOBSUN 50W DC-DC Converter (Model: EA50-5V, 12-24v In 5v out) I discovered it to be RF-clean but the generic 12v voltage display in the 12v distribution panel (two access
/archives//html/RFI/2020-05/msg00010.html (7,675 bytes)

215. Re: [RFI] FM Wireless Mic on 144.160MHz (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Fri, 28 Aug 2020 21:42:30 -0400
It would be interesting to know the manufacturer and model - because if they have it many others may as well - and that could become a problem we need to get ahead of. I'm sure their sound person wil
/archives//html/RFI/2020-08/msg00045.html (8,545 bytes)

216. Re: [RFI] Samsung Oven update #4 'final' response from Samsung Corporate (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 29 Aug 2020 15:42:05 -0400
I have found that posting an embarrassing note to Twitter, copied to Corporate, has repercussions up the food chain - they're terrified someone with a major follower-count will re-tweet and they hate
/archives//html/RFI/2020-08/msg00053.html (13,629 bytes)

217. Re: [RFI] Samsung Oven update #4 'final' response from Samsung Corporate, (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sat, 29 Aug 2020 20:53:11 -0400
And it's powered from a byproduct of ancient dinosaur dung ... ;-) I will never let go of my 1949 Norge gas range. Rob K5UJ _______________________________________________ RFI mailing list RFI@contes
/archives//html/RFI/2020-08/msg00060.html (7,258 bytes)

218. Re: [RFI] Sound Card (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Tue, 15 Sep 2020 21:54:39 -0400
A USB isolator is cheap online. Now in thinking of RF issues of RF getting into it. Where would be the best placement of it to lessen the possibilities of RF getting into it? Having it right at the c
/archives//html/RFI/2020-09/msg00038.html (7,177 bytes)

219. Re: [RFI] Sound Card (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Wed, 16 Sep 2020 19:02:48 -0400
Didn't find the exact same one as mine (I paid less) but a duckduckgo.com Search located this one which looks the same: https://www.amazon.com/Nobsound-Audio-Eliminator-Industrial-Protection/dp/B07GB
/archives//html/RFI/2020-09/msg00047.html (9,351 bytes)

220. [RFI] Anyone Tested These LED Light Bars for RFI? (score: 1)
Author: "qrv@kd4e.com" <qrv@kd4e.com>
Date: Sun, 11 Oct 2020 19:45:07 -0400
https://www.amazon.com/Integrated-Fixture-Linkable-Fluorescent-Replacement/dp/B07TYJ22QJ/ I need a few around the radio room and shop and 3', 15w, 1500 lumens @6000k meets the need well. I know I sho
/archives//html/RFI/2020-10/msg00050.html (7,421 bytes)


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