My housemate's desktop has a noisy power supply

[vortalexfan]

Originally Posted by MadMan

Well if you ever read those FCC stickers, all they ever say is that 'this device does not cause harmful interference.' Doesn't say no interference.

TBH, I couldn't tell you. Are you sure the noise in on the power lines and not just in the air?

Wouldn't an across-the-line capacitor in the vicinity of the radio fix power line noise?

I'm sure its not in the air, its on the line, because I can use a little Sony transistor radio from the 1970s and hold it up against the wall where there is a known run of wire and it will buzz like mad, but if I point the radio away from an area where the wiring is at the buzzing stops and the radio functions normally.

Also there was a day that my housemate was home and using his computer and I came back from running some errands and as soon as I pulled up to my parking spot where I live (I park outside along the road underneath some power lines) the radio started buzzing like mad and it was coming in just fine before hand, which is a confirmation that the noise my housemate's computer power supply is making is definitely on the powerline.