Remember the old days when the old TV sets had no filtering and the ham causing the interference had to cease operations during prime time TV hours until the problem was resolved? Ever wonder why the
Sorry Roger, but I was not around in 1952. Not that old. I'm not at all familiar with the problems you're describing but I have heard of them. I was talking about TV sets before cable TV and before e
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Fri, 11 Jan 2019 16:48:20 +0000
Robert, When it comes to electric power distribution, the MOVs that would apply are the ones used for "electrical distribution power line Surge Arrestors". See links below for photos, descriptions &
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Wed, 12 Jun 2019 13:22:52 +0000
I notice theyre isnt much concern with the RFI problems as there is with lower efficiency: https://www.sciencealert.com/scientists-identify-a-key-flaw-in-solar-panel-efficiency-after-40-years-of-sear
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Wed, 12 Jun 2019 19:19:10 +0000
Don, There was a recent RFI group exchange on this list regarding possible ways that the cells themselves could create some RFI issues. But I don't think this was based on anyone's findings in the fi
Greetings RFI group members, Having our kitchen remodeled, and I was not able to be there when the electrician installed our new recessed ceiling downlights. They used new, ultra-thin, wafer LED unit
We just did a kitchen remodel here that replaced our ceiling lights with new Lithonia wafer-thin LED lighting with external SMPS boxes that created strong RF noise strongest on 30 meters. I didn't li
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Tue, 26 Nov 2019 15:18:25 +0000
If you're going to let the ARRL & FCC know of an RFI case, please do so after the utility has been contacted and has either already resolved the case for you or else has not responded or fixed the pr
Author: "EDWARDS, EDDIE J via RFI" <rfi@contesting.com>
Date: Tue, 26 Nov 2019 15:09:27 +0000
Chuck, It probably depends on the agency and if they have in-house technicians or if they outsource tech support whether they can respond to and track down an interfering source right away or not. Bu
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
Wes, Our utility has both the dish ultrasonic (hand held dish) and the one for up close use on the hot stick (both by radar engineers). Both work well for what they're designed to do and both have th
I totally agree with Stan's assessment, and would recommend all hams who operate HF and VHF bands begin contacting the ARRL and the FCC immediately regarding this issue whether you have solar RFI tod
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
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
I completely agree with you Ed that politicians are never the answer top anything. They are the problem. Early on, these cases will be about a neighbor adding solar panels to their house next door to
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
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
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
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
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