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DIY EMI shielding?

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3 years ago#1
How effectively would aluminum foil wrapped in electrical tape shield a sound card from EMI?
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3 years ago#2
I saw something where a guy tried to shield leads from his GPUs to the mobo with aluminum foil (he was building a wall mounted case) and it didn't work overly well- he ended up having to get shielded cables because his setup barely worked.

If it's in a case/has a good couple layers on it, it should work ok, I would think. Why not try it an see?
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3 years ago#3
Because I'm not really very knowledgeable on the mechanics of EMI shielding. I basically just want to see if i can cut out some noise between my GPU and sound card to see if it helps the headphone mode stop sucking.
Want that Shield!
Ball and Cup on ps mobile has framerate issues. -stargazer64
3 years ago#4
I think any kind of shielding needs to be grounded. You can buy emi sheet absorbers, no idea if those will work.
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3 years ago#5
The best, easy made EMI shield is a Faraday cage. However, it has to have a good ground.

EDIT: Outdoor copper communication lines have an aluminum jacket surrounding the conductors as a shield. It is also grounded. So I think the message here is surround it in metal as completely as possible and ground it well.
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3 years ago#6
I think copper tape would work well. You could sandwich one layer of copper between two layers of electrical tape.
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