Over the next few weeks, we’re tackling some of the most common myths/misconceptions in EMC testing. These misconceptions often slow down development teams or drive unnecessary costs. In this mini-series, we’ll break down the myths frequently encountered at Raditeq and reveal the practical truths behind them and thus helping teams develop faster, smarter, and with more confidence.

EMC Myth #1

Many teams still treat EMC as something that belongs at the very end of the development project. They focus on features, mechanics, production, and firmware first. Only when the design looks finished EMC comes into view and emissions, grounding, or immunity cause problems. At first, this approach feels efficient. However, it is one of the fastest ways to run into delays, failed tests, and painful and costly redesigns.

If EMC is delayed until the end of the project when the prototype is produced, the problems appear at one of the worst possible moments. By then, most design choices are locked in place. Adjusting the PCB, reshaping the enclosure, or rerouting cables becomes expensive and slow. Instead of small improvements, teams face structural changes that ripple through the entire design. New prototypes follow, more tests are needed, and the launch date slips further away. Things get even worse when the EMC problems arise when the product reaches the customer. Recalls, claims and even being forced to take the product of the market by the governmental institutions, may very well be the result. Even worse still the reputation of your company may very well be in jeopardy.

EMC – right from the start

The fastest and most low-cost approach is to take EMC into account right from the start of the project. Questions like in which situation the product will be used. Is it a consumer product or industrial, medical, automotive or military. Based on the answer, the next question will be which legislation and standard do apply? Take the applicable standards into account the same way as other design criteria. This is only logical as one may not put the product on the market before it complies with these mostly mandatory requirements. Design it right the first time!

Testing is next!

Testing is the proof of the pudding. Even a simple pre-compliance check gives engineers instant clarity. A small layout correction, a cleaner return path, or better component placement often solves issues before they grow. Early insight turns EMC from a late-stage obstacle into a normal, manageable part of development.

And this isn’t theory. Across projects, where teams use accessible in-house tools, like the quick pre-compliance setups Raditeq helps companies to build, the difference is striking. Once engineers can test whenever they want, EMC stops being a black box. They learn how their design behaves long before the deadline. They experiment more, debug faster, and avoid the stressful “we hope it passes, fingers crossed” moments.

For development teams that take EMC into account right from the start, the final tests at an accredited lab feels like a formality, not a roll of the dice.

So no, EMC can’t wait. It works best when it walks alongside development from the start. Taking EMC into account right away and early testing saves time, prevents unnecessary redesign loops, and keeps projects firmly on track.