[RFI] Solar Panel RFI

[Kim Elmore]

Might be a bit unfair to blame the RFI on the Chinese. Chances are, they built EXACTLY as specified by American engineers who couldn't care less about RFI. 

Kim N5OP

"People that make music together cannot be enemies, at least as long as the music lasts." -- Paul Hindemith

> On Mar 17, 2017, at 14:27, Mike Kirkland <radio.ns6q at gmail.com> wrote:
> 
> To me its looking like it is not a case of all solar installations are
> evil. My guess is that most are not. I know at least 5 hams with arrays
> directly under their antennas and they have no noise issues. Case in point
> for me is the array 2 houses the other direction. I never heard a thing out
> of it.
> 
> The disturbing bit to me is that I was told by Solar City that this is ONLY
> type of system they install and I am guessing they install a lot of them.
> 
> 
> 
> 
> 
> 
> 
> Please see ns6q.net/exams for all the details about out exams...
> 73,
> Mike
> NS6Q
> 
> 
>> On Fri, Mar 17, 2017 at 12:18 PM, David Robbins <k1ttt at verizon.net> wrote:
>> 
>> On my system the 'optimizers' are built into micro inverters on the back of
>> each panel.  I hunted for noise on all hf bands and could only find a
>> little
>> bit on 10m when aimed straight at the panels, a couple ferrites clamped on
>> each inverter dropped that below the noise floor.  So they can be made
>> quiet.
>> 
>> David Robbins K1TTT
>> e-mail: mailto:k1ttt at arrl.net
>> web: http://wiki.k1ttt.net
>> AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373
>> 
>> 
>> 
>> -----Original Message-----
>> From: RFI [mailto:rfi-bounces at contesting.com] On Behalf Of Tom Lizak
>> Sent: Friday, March 17, 2017 18:50
>> To: RFI at contesting.com
>> Subject: [RFI] Solar Panel RFI
>> 
>> I am waiting for a large solar panel array to be put up next to a
>> fire/police station and have those RFI issues present...it won't be long
>> before they are "dismantled".  How come some solar panels can be used w/o
>> optimizers?  Are they more expensive ?
>> 
>> 
>> 
>> These optimizers can be "calmed" down by using proper RFI engineering
>> techniques but to save a few $$$, the companies building them just don't do
>> this............and probably "made in CHINA", where else, eh?
>> 
>> 
>> 
>> 73
>> 
>> K1TL...
>> 
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