Dirt on your test chamber doors can cause serious performance issues, leading to unnecessary costs, downtime, or even non-compliance. For tempest-shielded facilities, it could even lead to a security breach. Our colleague Joëlle Driessen-Verkuijlen, who oversees our maintenance contracts, explains these risks and has a simple solution.
Why is Comtest Engineering founder Hein de Groot holding a table tennis bat in this 1988 photo? This year, we are celebrating our 40th anniversary, and every five weeks, we share a bit of Comtest’s history.
COMTEST
Hoge Rijndijk 205 | 2382 AL Zoeterwoude | The Netherlands | +31 71 541 7531 | Send us an email
Privacy Policy © Comtest 2025
COMTEST ENGINEERING BV
Hoge Rijndijk 205 | 2382 AL Zoeterwoude | The Netherlands | +31 71 541 7531 | Send us an email
Privacy Policy © Comtest Engineering 2025
Our services include maintenance and validated testing. We recommend that both are executed by authorized personnel only. Our expert teams can perform preventive maintenance on RF-shielded doors, mode-stirrer systems, and positioning equipment such as turntables. We also offer validation services to see if your EMC test chamber or RF-shielded room still functions within its intended limits and avoiding unexpected down-time or product recalls at the same time.
Our services include maintenance and validated testing. We recommend that both are executed by authorized personnel only. Our expert teams can perform preventive maintenance on RF-shielded doors, mode-stirrer systems, and positioning equipment such as turntables. We also offer validation services to see if your EMC test chamber or RF-shielded room still functions within its intended limits and avoiding unexpected down-time or product recalls at the same time.
A shielded room can perform conducted emission and immunity EMC measurements, eliminating harmful external influences, leading to more accurate and consistent test results. Being a Faraday cage, a shielded room will not only improve test results but will also form an excellent aid in protecting information and essential hardware. Comtest can assist governments, the military, financial institutions, and large corporations in protecting what matters most in critical situations. We offer the highest quality, sensitivity, and security before, during and after working with you.
A shielded room can perform conducted emission and immunity EMC measurements, eliminating harmful external influences, leading to more accurate and consistent test results. Being a Faraday cage, a shielded room will not only improve test results but will also form an excellent aid in protecting information and essential hardware. Comtest can assist governments, the military, financial institutions, and large corporations in protecting what matters most in critical situations. We offer the highest quality, sensitivity, and security before, during and after working with you.
Comtest has been building high-quality antenna test ranges for more than 20 years. We are dedicated to putting our experience to work for you, turning any problem you might have into a customized test solution. As for researching and developing your products, we know speed and return on investment are very important. That’s why we ensure your project is delivered on schedule, on budget and exactly as ordered.
Comtest has been building high-quality antenna test ranges for more than 20 years. We are dedicated to putting our experience to work for you, turning any problem you might have into a customized test solution. As for researching and developing your products, we know speed and return on investment are very important. That’s why we ensure your project is delivered on schedule, on budget and exactly as ordered.
Comtest offers semi and full anechoic chambers that shield almost 100% of ambient emissions and reflect minimal internal radiation. We deliver or build your custom test chamber at your location, depending on what size chamber you need. If you tell us your challenges, we’ll offer a tailored turnkey solution from design to installation, including upgrades and yearly certifications.
We are committed to helping you achieve the best EMC testing possible.
Comtest offers semi and full anechoic chambers that shield almost 100% of ambient emissions and reflect minimal internal radiation. We deliver or build your custom test chamber at your location, depending on what size chamber you need. If you tell us your challenges, we’ll offer a tailored turnkey solution from design to installation, including upgrades and yearly certifications.
We are committed to helping you achieve the best EMC testing possible.
More and more test labs and automotive OEMS are embracing reverberation testing. But who has the expertise to operate a reverberation test setup? Professor Frank Leferink from the University of Twente is launching a unique 5-day course for professionals transitioning to reverberation testing this September. As a friend of the university, we offer you a generous discount.
Why do we encourage test houses to enhance their knowledge instead of hiring a Comtest professional?
Bas de Groot, Director of Marketing and Sales at Comtest Engineering: “It is in our best interest when clients who purchase a reverberation test chamber have proper knowledge of the possibilities instead of learning by trial and error or late-night self-study. And it is not in our mission to charge our clients many hours for consults if we see a way that they can invest in that knowledge themselves. We see a nice opportunity with this new course from Frank Leferink, a long-time friend. In only five days, you are entirely up to speed.”
What does the course offer to test lab engineers?
Frank Leferink: “We focus on professionals from test labs without reverberation chambers, but who will acquire one. It’s a huge change which is not always easy. For years, we have organised workshops at international conferences about reverberation testing, and every time we receive many questions like: How does it work? How can I compare it to our current working method? And so on. There is a strong need for guidance on this relatively new subject.”
“The course is intense but offers much variation. The first day ends with a dinner so the group can get to know each other in a relaxed atmosphere. That’s when the magic begins: many professionals usually have no time to exchange experiences and share practical tips. Every morning, we cover much of the theoretical part. After lunch, when energy levels dip, we organise two hours of experimentation in our test chambers at the university (one built by Comtest), concluding with a final lecture. We will place antennas in different positions to observe the effects, track errors, and measure the responses of the product we are measuring.”
The course is in English and will take place from September 15 to 19, 2025, at the University of Twente in Enschede (NL). The investment is € 5000 and is tax-deductible. For more information or to apply, please visit the university’s website (the link is in the comments). When applying, kindly mention Comtest Engineering for a 10% discount.
Interested?
Go to https://www.utwente.nl/en/education/lifelong-learning/courses/lll-147-reverberation-chambers/ for more information or to apply for the course.