EMC Toolbox Blog
Practical EMC and RF articles: standards and test methods, design measures, troubleshooting and worked examples, each linked to the related calculators.
What Is EMC? Emission, Immunity and Coupling Paths Explained
EMC basics for hardware engineers: emission vs immunity, the source-path-victim model, four coupling paths, and the steps to CE, FCC, KC and VCCI approval.
2026-11-02EMC in New Nuclear Plants: Digital I&C, RG 1.180, IEC 62003
Why EMC became a safety issue for digital I&C in new nuclear plants like Vogtle 3-4 and the EPRs, and what RG 1.180, IEC 62003 and IEC 61000-6-5 require.
2026-10-253 m to 10 m Limit Conversion: When the 20·log Rule Fails
Convert radiated emission levels between 3 m and 10 m with 20·log(d₁/d₂): worked numbers, near-field errors from 1 to 300 MHz and cases where the rule misleads.
2026-10-25How Many µA of Common-Mode Current Fail CISPR 32 Class B?
Worked numbers: a 1 m cable fails the CISPR 32 Class B radiated limit with only about 8 µA of common-mode current. How to turn that into a current-probe pass/fail level on your bench.