[GCARC] Experience negotiating with RFI Owners

[Ken Bozarth]

I've been monitoring this issue. I have witnessed noisy systems and quiet ones. My next door neighbor just had a big system installed. I keep listening during the day with nothing heard. Surely they must have had final elect inspection and had the system connected and turned on. Maybe not. I will knock their door tomorrow and ask. My MIL has a neighbor with a big system. Sitting in the car, listening to 20m, noise was about S9. When I drove away, it was gone. I have driven by huge field systems and have heard nothing, but where are the chargers located? Magnetic loop antennas have very deep nulls in opposite directions. The mag loop is a compromise antenna, but if it lets a ham operate...If it were me, I'd simply become a mobile operator, maybe put an amp in the car. Operating at night may also be a solution for him.

-----Original Message-----
From: gcarc-bounces at mailman.qth.net [mailto:gcarc-bounces at mailman.qth.net] On Behalf Of CHARLES Colabrese
Sent: Sunday, March 14, 2021 8:48 PM
To: gcarc at mailman.qth.net
Subject: Re: [GCARC] Experience negotiating with RFI Owners

Christopher,
I agree with Al.  There is probably very little the homeowner can do.  The noise is coming from the  charge controller(s).
As for the directional antennas, a fan dipole will be pretty much an Omni-directional antenna.  A beam is directional, but you’ll get the greatest rejection from the back of the beam, so you’ll really only have one favored direction.  
Here’s a link that may be of help.      http://www.arrl.org/forum/topics/view/1962
It’s a few years old but the lady might still be with the FCC.  Having the name of the controller manufacturer (which you should be able to get from the installer) might help IF the FCC is interested in investigating the problem.  Contacting the manufacturer yourself might be worth a try.  
73, Chuck, WA2TML


Sent from My iPad



------ Original Message ------

From: Al KB2AYU
To: gcarc at mailman.qth.net
Sent: March 14, 2021 at 8:01 PM
Subject: Re: [GCARC] Experience negotiating with RFI Owners

There are thousands of noisy solar installations out there. Even if the installation company wanted to help (which isn't likely) it would take lots of expen$ive work and even then there is no guarantee of success. The homeowners probably don't own the system, they are leasing it, so they aren't going to care. Unfortunately, I think you are on you own. I'm not sure if one of those noise cancelling antenna/receiver devices would work in this case. Al On 3/14/2021 3:03 PM, Christopher Wawak wrote: > I'm faced with S7-S9 noise across 40m-15m at 200khz intervals. I'm looking > for assistance resolving this RFI I suspect is coming from a neighbor's > solar installation. The owners are elderly, and I'm not sure they'll > understand and be able to remedy the situation. HF is next to unusable. > > > Some questions: > > 0. So far, do I seem on the right path? > > 1. What tactics have worked in the past with getting owners to respond? > > 2. Right now I have an AH-4 with a wire antenna. If I switched to, say, a > fan dipole or a beam antenna would i be able to reject the solar panel > noise? If my antenna were higher up, would that help? > > 3. Am I doomed to not have workable HF at home? > > > 73 Chris KC2IEB > > > (if the pictures are filtered, click here > > ) > > RFI Location > > Appears to be coming from solar panels on a house behind my own, about 275’ > away. I traced this with a loop antenna and a cheap AM radio following to > where the noise seemed loudest. > > Characteristics > > Heavy S7+ “hash” noise every ~200 khz, starting around 40m and going all > the way up through 15m. > > > Generally starts an hour or two after sunrise, and shuts down before sunset. > > Noise Log > > 3/13/2021 > > 4:00 PM Local - https://www.youtube.com/watch?v=QQZr1xXIf0Y whole house > power off test @ 3:14 in the video - no improvement > > > Gone by 7:53 PM > > 3/14/2021 > > 8:38 am > > Some squiggles > > Showed up almost on the dot at 9am > > It’s moving down the band some > > Most noticeable from 20m on up > > . > > ______________________________________________________________ GCARC mailing list Home: http://mailman.qth.net/mailman/listinfo/gcarc Help: http://mailman.qth.net/mmfaq.htm Post: mailto:GCARC at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
______________________________________________________________
GCARC mailing list
Home: http://mailman.qth.net/mailman/listinfo/gcarc
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:GCARC at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html


-- 
This email has been checked for viruses by AVG.
https://www.avg.com