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Re: [RFI] Solar Edge RFI Update 11/29/18

To: Andy KU7T <ku7t@ku7t.org>, Tony <dxdx@optonline.net>, Rfi List <rfi@contesting.com>
Subject: Re: [RFI] Solar Edge RFI Update 11/29/18
From: Gedas <w8bya@mchsi.com>
Date: Thu, 29 Nov 2018 14:18:33 -0500
List-post: <mailto:rfi@contesting.com>
Absolutely NOT the same.

Gedas, W8BYA

Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.

On 11/29/2018 2:13 PM, Andy KU7T wrote:
All,



Is it the same to use 5 cores and just clamp them on a cable one after another 
compared with using one of the same cores and wrapping the cable 5 times 
through?  I would think yes. Is this true?



(I am asking because I am doing some RFI suppression work on my heating system and may 
go the easy route of just clamping on a couple…)



73

Andy

KU7T



Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10



________________________________
From: RFI <rfi-bounces@contesting.com> on behalf of Tony <dxdx@optonline.net>
Sent: Thursday, November 29, 2018 11:05:03 AM
To: Rfi List
Subject: [RFI] Solar Edge RFI Update 11/29/18

All:

Solar Edge installed RFI suppression on my neighbors solar system on
Monday. They installed 5 clamp-on Ferrites on half the Optimizers which
left the rest of the system open to RFI. Needless to say, this did
little to suppress the noise.

The company will not wrap cables around large cores because they say
that doing so would violate the cables bending radius and could lead to
cracks. I spoke to the engineer today and he maintains that using
several clamp-on Ferrites is the equivalent of wrapping the cable around
a core.

So that's where we are. I should find out the next course of action this
week. I'll keep the group posted.

Tony -K2MO

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