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Dario Fresu

PCB Hacker - Team

PCB Hacker - Founder



Nobody seems to care about EMC or EMI when designing new electronic products.


Until it's too late, of course.


Then all the stakeholders get involved.


Especially when the project has been stuck for a few years because you haven’t found the issue.


And to make things worse, the project is already over budget.


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Dario Fresu

PCB Hacker - Team

PCB Hacker - Founder

5 Things to Check Before Sending Your PCB for Production to Improve EMI



🔹 Do all signals, especially those on surface layers, have a continuous, low-impedance return path underneath them?

🔹 Have you minimized asymmetries between differential pair signals?

🔹 Have you placed filters and protections on all external I/Os?

🔹 Have you stitched all return reference planes ("grounds") to minimize plane resonance?

🔹 If you’ve used power planes, are they adjacent to the return reference plane and as close together as possible?


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Dario Fresu

PCB Hacker - Team

PCB Hacker - Founder

Most PCBs fail EMC testing. Yours doesn’t have to.


If you're an electronics engineer serious about designing EMI-compliant PCBs, here’s your step-by-step roadmap:


🔹 Level 1PCB Design Course (FREE today)

🔹 Level 2EMI/EMC Design Course (FREE today)

🔹 Level 3PCB Experts Academy (Exclusive Access)

🔹 Level 41:1 EMI Specialist Training (Personalized Coaching)


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Dario Fresu

PCB Hacker - Team

PCB Hacker - Founder

The latest article I wrote for Altium® is finally out!