My array is maybe 20’ from the base of one of my 160m inverted L’s and is
directly under (by 150’ or so) one 80m inverted v and neither hears anything
from the array… of course at night the solar array isn’t producing anything so
the inverters shut off. but the array is about 60’ from the lowest antenna on
my 20m stack and it hears nothing during the day.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://wiki.k1ttt.net <http://wiki.k1ttt.net/>
AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
From: David Eckhardt [mailto:davearea51a@gmail.com]
Sent: Thursday, April 12, 2018 23:02
To: k1ttt@arrl.net
Cc: Rfi List
Subject: Re: [RFI] solar panel filters
Ferrites are better suited at reducing RFI at 30 MHz than low HF. I am far
more concerned about 160, 80, and 40-meters, and of course, 20.1 MHz that 30
MHz. Inverters and built-in or added after the fact optimizers produce less
and less energy as the frequency is increased. Ferrites become less and less
effective as the frequency is decreased. Yes, there are special mixes of
ferrites that are effective at lower frequencies, but not easily available from
your corner store.
Dave - WØLEV
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On Thu, Apr 12, 2018 at 6:32 PM, David Robbins <k1ttt@verizon.net> wrote:
'optimizers' are built into the inverters and are just part of the circuitry
controlling the power flow from the panels to the lines. and not all
optimizing inverters are noisy, I have 27 of them here and it took all of 3
ferrites on each one to clean up the little bit of noise I could hear when
beaming at the array on 10m.
David Robbins K1TTT
e-mail: mailto:k1ttt@arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
-----Original Message-----
From: RFI [mailto:rfi-bounces@contesting.com] On Behalf Of David Eckhardt
Sent: Thursday, April 12, 2018 18:07
To: Leonard.Keepers@comcast.net
Cc: Rfi List
Subject: Re: [RFI] solar panel filters
Good luck!!
One bit of advice: Do NOT incorporate 'optimizers' in your installation.
They have proven to be extremely noisy - even worse than the inverters+
+. I have contacted a local installer several times for a 'solution' to
RFI. So far, I've received absolutely nothing in reply.
Dave - WØLEV
On Thu, Apr 12, 2018 at 3:26 AM, LeonardKeepers <Leonard.Keepers@comcast.net
> wrote:
> hello group i am asking if their are filters available for solar
> panels to try and prevent rfi,if so what type and brands and price of such
> filters.
>
> thank you
>
> Leonard
>
>
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--
*Dave - WØLEV*
*Just Let Darwin Work*
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