radiated emissions

This is the fourth and final article in our series commemorating 70 years since the advent of modern EMC testing.

This article is the third in a series commemorating 70 years since the advent of modern EMI testing. But this last article is itself divided into multiple parts, due to the topic’s complexity. Unlike the previous two articles, which mainly tracked evolution and explained issues, this series of installments argues that we started off correctly seventy years ago, but then took the wrong fork in the road in 1967.

This article is the third in a series commemorating 70 years since the advent of modern EMI testing.

When it comes to in-situ radiated emission measurements, the combination of near- and far-field measurements is often the best approach.

This article is the third in a series commemorating 70 years since the advent of modern EMI testing. But this last article is itself divided into multiple parts, due to the topic’s complexity.

An AM radio can be useful for finding both radiated emissions and ESD events. Understanding how radio works is essential for engineers to use this low-cost technology to troubleshoot complex EMI issues.

In one of the largest settlements in recent memory, a New York-based company has...

From open fields to shielded enclosures, radiated emissions testing demands precision at every step — this technical deep dive compares OATS and ALSE measurement methods, antenna configurations, and FCC and CISPR compliance limits across a broad frequency spectrum.

When testing EMI performance, substituting real loads with "equivalent" resistors can mislead you by up to 20dB—enough to turn a passing design into a costly failure. This practical guide demonstrates why fans, motors, and other non-linear loads behave dramatically differently than resistors, and why authentic testing matters for accurate results.

Much has been written on the subject of radiated emissions and it is with pleasure that I have been given the opportunity to review the Third Edition of Controlling Radiated Emissions by Design by Michel Mardiguian (with contributions by Donald. L. Sweeney and Roger Swanberg).