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GROUNDED: Your PCB, EMC/EMI, and SI Nuggets

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Dario Fresu

PCB Hacker - Team

PCB Hacker - Founder

90% of EMC test failures come from ONE tiny mistake—and it’s hiding in your circuit board design.



For example: Run a signal line over a gap, and you’ve just made a potential EMI mess.


I missed this too until I started wondering:


🔹 What happens when the signal hits that gap?

🔹 Can the energy between the layers go wild?

🔹 What if those layers connect to cables and blast interference everywhere?


These aren’t just “what ifs”—they’re hidden problems your schematic drawings won’t show you.


Learn the fundamentals: fields, impedance, currents

and you can stop them before they cost you big time.


Passing EMC tests comes down to preparation, not chance.


-Dario


P.S. Want my fast and easy EMI fixes for last-minute saves?


Grab my new EMI Quick Fixes Guide here.

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