Engineering services / EMI/EMC remediation
EMI/EMC remediation and pre-compliance
When a product fails emissions or immunity testing, we find the cause and fix it in the layout, firmware or enclosure, then verify with our pre-compliance lab partners before you go back for formal testing.
What we fix
Problems found on the bench are cheaper than problems found at the test lab.
Radiated emissions
Noisy clocks, switching supplies and cables traced to their source.
Conducted emissions
Filtering and layout changes on power inputs.
Immunity and ESD
Protection, grounding and firmware recovery for real-world interference.
Grounding and return paths
Stack-up and routing changes that keep currents where they belong.
Cables and enclosures
Shielding, ferrites and enclosure changes when the board is not the whole story.
Design reviews
EMC review of a new design before the first prototype.
EMC pre-compliance testing through partner labs
We do not run EMC pre-compliance equipment in house. We work with close partner labs that do, so fixes are verified with real measurements before you pay for formal certification testing.
Formal FCC and CE testing is done at an accredited test lab. We help you prepare for it and respond to the results.
How remediation runs
Review results
Your test report, schematics and layout.
Find the cause
Analysis of likely sources and coupling paths.
Fix
Layout, firmware, filtering or enclosure changes.
Verify
Pre-compliance measurements with a partner lab.
Retest
Back to the accredited lab for formal testing.
Common questions
Do you have an EMC chamber?
No. We work with partner labs for pre-compliance measurements and design the fixes ourselves.
Can you help before we fail a test?
Yes. The cheapest time to catch problems is before the first prototype, with EMC consulting and a design review.
What do you need to get started?
The test report if you have one, schematics, layout files and a sample of the product.
How is pricing handled?
Hourly or by project, since the scope depends on what we find. If we also build your boards, ask about amortizing the engineering into your first production runs.
Failed an EMC test?
Send the report and design files and we will tell you where we would start.