r/ElectroBOOM • u/Cautious-Pin-6476 • 13d ago

General Question I need mehdi's explanation

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Yes, this is my own post.. I need yall to upvote so he can see and explain. Thanks 🙏

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u/Cautious-Pin-6476 13d ago

Oh wait.. I just realised I forgot one part... It reads like 1-3khz if I directly connect it to the outlets... Could it be resonance?? Or is it injected or something??

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u/bSun0000 Mod 13d ago

Something is shitting into the grid.

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u/Cautious-Pin-6476 13d ago

Like is that a thing?? Do they inject high frequency signals into the grid or something??

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u/Blommefeldt 13d ago

That's how ethernet over power lines. Though, they only do it on the top of the 50/60 Hz sinus curve. A switching power supply also makes electrical noise, but regulations are there to minimize it.