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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: RE: Ground loop question. posted by JKT on March 5, 2015 at 15:55:05:
"The safety ground, while presenting a low impedance to ground for DC, probably presents a rather high impedance to RFI (a noise antenna)."
What?
"One solution that won't violate safety codes would be to install near your stereo a separate ground rod and connect it to your stereo with Litz wire in series with an appropriately sized capacitor."
It will most certainly violate code code unless bonded to the safety ground, with or without a capacitor attached. Multiple ground points are good and can improve the ground but must be bonded together. I really don't think litz wire will improve anything over THHN or solid wire.
"You would leave the safety ground attached. Since the new ground connection is made with a cap....and the high frequency crap now has a low impedance path to ground."
If you mean capacitve reactance, yes it is a means to shunt noise to ground and works well but you need to educate yourself on what it is you trying to communicate. Impedance, resistance, reactance they are not interchangeable terms. To build a shunt you need to calculate the capacitive reactance in order to size the capacitor. Not just any old thing will do.
Cheers
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Follow Ups
- RE: Ground loop question. - Uncle Mike 17:41:38 03/05/15 (2)
- RE: Ground loop question. - JKT 16:57:04 03/06/15 (1)
- RE: Ground loop question. - JKT 17:35:23 03/06/15 (0)
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