The radio amateur’s solar cells interfere – despite all measures

Of course, Anders Ljunggren was prepared for some radio interference when he installed solar cells at his villa this year.

– But I would never have been able to imagine that the disturbances would be so serious, he says.

The residential plot, which is located in Huddinge outside Stockholm, is strewn with antennas. Here are vertical antennas, directional antennas, wire antennas and satellite dishes. Anders is an avid radio amateur.

– But when the sun is shining like today, I can not run the radio at all. It just howls. I thought in my quiet mind that it would be enough to turn off the inverter to avoid noise. But it only helps marginally. As long as the sun is shining, the solar panels continue to provide electricity. And under each panel is an optimizer that continues to spread disruption, he says.

Anders Ljunggren reported his facility to the Swedish Electrical Safety Agency, and in the spring of 2018, the electricity inspector Henrik Olsson paid an inspection visit. His measurements confirmed that the photovoltaic system caused severe radio interference on the shortwave band, and some interference also on VHF. The interfering signals were spread primarily via the plant’s DC lines, which acted as unintentional transmitter antennas….Read Full Article ***GOOGLE TRANSLATE

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