Alpitronic’s room with 1500V / 1000A filters

23 meters long, 15 meters wide, and 9 meters high, with a turntable that has an 8-meter diameter. Technical Consultant Uliana Trucchi explains what makes this room so unique.

Uliana Trucchi: “I’ve been in the business for 28 years, and it’s the first time we delivered a room with 1500V / 1000A filters (1000 A is tough for filters and connectors), for example. This room for alpitronic in Bolzano, Italy, is prepared to test so-called hypercharge for superfast charging. We had to install special connectors, and safety was more of an issue than normal. The chamber will be used for emissions tests from 30 MHz to 18 GHz at 10m and 3m range. Furthermore, it has a normalised site attenuation test zone (RSM as per CISPR 16-1-4), or quiet zone, of 7,5 meters at a 10m distance, which our R&D engineer Dimitrios Barakos developed.”

Uliana tells us how she experienced the completion of the room. “I’m from the north of Italy, so you should expect that working for a client in Bolzano is a home game. But people forget that this part of Italy is Italian and German-speaking and was once part of Austria. However, our colleague who oversees the installation speaks German fluidly. My client contact was Andreas Lösch, a young and highly talented engineer at alpitronic. It’s amazing to see how Alpitronic empowers young people by giving Andreas the mandate to lead this important project.”

Andreas Lösch recalls the team’s early working hours: “The Comtest team helped me a lot by starting emailing at 5 in the morning. I’m swamped during office hours, so exchanging updates before the office opens is great. We joked about the early hours we started to work, and I called us the early bird club! But, working with Comtest was a pleasure; they delivered a good technical solution for a competitive price with well-developed planning. The reactivity of the Comtest team was great: they always supported my questions and requests as soon as possible.”

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Upgrading an EMC chamber with new absorbers on old tiles

Can you upgrade an EMC chamber and keep the old, glued ferrite tiles? “It’s possible”, says Uliana Trucchi, one of our technical consultants. “Say you want to replace your old absorbers because you need to meet performances over 1GHz, and you wish to keep the ferrite tiles because they are glued to the chamber’s walls and ceiling. That is exactly what the people from Nemko in Germany asked us for the chamber upgrade in the photo.”

The number of stirrer positions vs power

Testing time is valuable, so this post provides tips on optimising the number of stirrer positions in your reverberation chamber to fit your budget and test requirements. “There is a delicate balance between the number of stirrer positions and the amplifier power for a given reverberation chamber,” explains our R&D Consultant, Dimitrios Barakos. By collaborating with EMC test solution provider Rohde & Schwarz, we aim to find the most efficient solution for our clients. “

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.