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EMF/RFI isolation with aluminum sheet metal

Hi all. I have my Class D power amps in pretty close proximity to my DirectTV DVR, both on the bottom shelf of a double wide built-in cabinet. I'm concerned about each component (the DVR and the amps) interfering with one another (EMF/RFI). One thought I had was to just cut a piece of sheet metal to size and place it in the cabinet between them. They are about 4 inches apart I can cut the sheet metal so it will basically be as if the entire area (cross-section) of the cabinet will be filled with only minimal gaps. Is this wortwhile? Any other ideas?

thanks!

--dan
dgaylin

Showing 1 response by spatialking

spatialking's avatar
spatialking
625 posts
 
The FCC does limit what can be emitted from a Class D amp, along with everything else. But not every unit is tested, only one unit unless it is a new model or a significant change was implemented.

Aluminum will do wonders for electrostatic noise if you ground it to earth. however, it is pretty transparent to electromagnetic noise. to stop that you have to use copper or preferably steel. However, whatever you use has to be grounded.

Are you having an EMI problem?
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