Working from door to door, an impression
This is our colleague Arjan Nederstigt standing inside a 4 x 4m door frame while holding one of the smallest door…
19/02/2025
This is our colleague Arjan Nederstigt standing inside a 4 x 4m door frame while holding one of the smallest door…
This is how a test chamber could look if you entered the Comtest Growth-Coaching Competition. At the end of last year, we sent over 300 flower bulbs to clients and interested followers on …
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.
Neglecting proper maintenance of test chamber doors can result in considerable performance loss. Our Service Engineer, Edwin Van Der Ploeg, explains the associated risks and offers guidance on mitigating them.
Edwin: “When I carry out an H-Field measurement, I measure the doors four times across seven points at varying frequencies. During these measurements, I verify whether these seven points comply with the standards. When these points do not exhibit radiation within the standards, it is often due to dirt. Ideally, you want 100 per cent steel on steel without any interference from other materials, such as dirt, which creates unwanted isolation. When testing at higher frequencies, dirt significantly reduces contact between the leaf and the door frame.”
So what do you advise, Edwin?
Edwin: “The section of the doorpost in the photograph I’m referring to is known as finger stocks and is a typical area where dirt, dust, corrosion, liquids, and grease create issues. The challenge is that some forms of contamination are not visible to the naked eye. Prevention is crucial; the best approach is to inspect the doors annually. You wouldn’t want to disassemble the door and replace all its components.”