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Re: [RFI] solaredge questions

To: Rfi List <rfi@contesting.com>
Subject: Re: [RFI] solaredge questions
From: Tony <73guddx@gmail.com>
Date: Tue, 3 Nov 2020 14:43:09 -0500
List-post: <mailto:rfi@contesting.com>
David:

In my experience, there are two distinct noises that radiate from the optimizers and inverter which you can see in the video I posted: https://www.youtube.com/watch?v=x9awWs4mwC4
The "modulated" traces you see on the spectral display emanate from the 
DC Optimizers. The steady carriers are caused by the inverter.
We found this to be the case using the process or elimination i.e., 
shutting down the inverter and covering the solar panels with tarps 
during daylight hours.
My neighbor has the European model optimizers and his old inverter was 
recently swapped for a new unit. I have the model numbers on file and 
will send them to you ASAP.
The RFI characteristics changed slightly with these modifications, but 
the overall strength of the interference has not changed. The RF chokes 
installed on the DC side a few years back help somewhat but the noise is 
still S-9 or better.
Tony -K2MO




On 11/2/2020 6:45 PM, k1ttt.dave@gmail.com wrote:
Just found out a neighbor got a solaredge system installed over the summer,
couldn't see it until recently when the leafs fell off the trees.  It has
apparently been active for about a month and I have not heard a peep out of
it.  Does anyone know if the SolarEdge Single Phase Inverter with HD Wave
technology (SE3800H-US), and/or the SolarEdge P320 optimizers, have been
implicated in other noisy systems??  If so, what were the characteristics of
the noise??

David Robbins K1TTT
e-mail:  <mailto:k1ttt@arrl.net> mailto:k1ttt@arrl.net
web:  <http://wiki.k1ttt.net/> http://wiki.k1ttt.net
AR-Cluster node:  <telnet://k1ttt.net:7373/> telnet://k1ttt.net:7373

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