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Perforated Chassis Question
Perforated Chassis Question
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Old 14th September 2019, 12:28 AM   #11
gabdx is offline gabdx  Canada
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Join Date: Jan 2008
Aluminum will catch up microwaves, however with more broadband frequency I think steel will catch and shield a lot more, i have to research if aluminum is a good antenna to shield AM and FM radio...

In any case the holes will not hinder the metal ability to shield the interior from some electromagnetism.

A real shield has two layers, you still need to measure each path to ground and be the same length to null the parasitics effect in the power supply...

You should be good

grid stoppers of proper values prevent the Mhz from being amplified , so use them everywhere, they don't lower your sound quality
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Old 16th September 2019, 11:06 AM   #12
DF96 is offline DF96  England
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Aluminium with small holes will block RF up to the frequency where the holes are a few percent of wavelength. At very low frequencies you need the aluminium to be at least a few skin depths in thickness.
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Old 16th September 2019, 11:07 AM   #13
WntrMute2 is offline WntrMute2  United States
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All your responses were helpful. I went with perforated bottom panels.
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