[RFI] SolarEdge Finds New Source of Solar System RFI
kd7jyk at earthlink.net
Sat Jun 1 20:13:09 EDT 2019
"I recently spoke with an engineer from SolarEdge who said that they
discovered a previously unknown source of RFI which turned out to be the
solar panels themselves. They found that the panels were producing noise
while physically disconnected from the system at a few installations."
I have/had a panel, it may be in storage, made in China, about 18V
output, bought to charge a small 12V battery, that could NOT keep a
battery charged. When a digital meter was put on the panel, the voltage
slowly decreased. An analog meter was put on the panel, and the voltage
fluctuated wildly the entire time the panel was illuminated. It was
like watching a VU meter on an old stereo while listening to an AM talk
station. I did not check further for any RFI, or broadband noise.
If there is interest, I can dig out the box for that project, and
hopefully find the panel for further analysis.
More information about the RFI