Basically, it is like that:kimchi man wrote: ↑Today, 13:38A lot of people are wondering what exactly is causing this problem. I’m one of them as well.MK92 wrote: ↑Today, 04:23Do not waste 90$ for bullshit ferrite cores linked above, this will NOT fix your problems because the problem is low-frequency noise, not high frequency.
You would need something that would fix 10-40 khz noise, not ranges from 150+ khz to 10 mhz, but this doesn't exist at consumer level.
I’ve been assuming that the problem is somehow related to the power supply or electrical environment, but I still don’t know exactly which aspect of the power system could be responsible.
You mentioned that low-frequency noise might be the cause of the problem. Could you explain that in a little more detail? I’d be interested to hear more about what you mean and how you think it could cause this issue.
1) high-frequency noise a.k.a "emi" (harmonics caused by switching power supplies, power inverters, solar panels, LED drivers etc.)
2) low-frequency noise which is caused by voltage sag and fluctuation, high neutral impedance, neutral drift, reference point or potential issues etc., and also possible by grounding issues - it is better to not have a ground in your home then to have a broken, half-working grounding.
And a good PSU or ferrite chokes or whatever else you buy can only fix the first problem (high frequency), but low frequency noise cannot be fixed by anything at consumer level, only a full re-wiring or clean dedicated current could help.