The scaleable amplifier/ chamber dilemma solved

Did you know that amplifiers for reverberation testing chambers can be scaleable? Picking the proper amplifier is a major factor in the total costs of a new chamber. That is one of the reasons we teamed up with Rohde & Schwarz, the global market leader in EMC and immunity test solutions, including solid-state RF Microwave amplifiers in various frequency bands/bandwidth combinations and power classes.

Their EMC Solution Specialist in Denmark, Martin Randrup Villadsen, explains the benefits of our cooperation for clients. “All information Comtest feeds us in the design phase helps us predict and calculate a suitable amplifier. They are very accurate in their designs, which makes Rohde & Schwarz more competitive in our price proposals.”

Dimitrios Barakos, Reverberation Specialist at Comtest Engineering, confirms: “When you buy a chamber for a specific test, you need to know the range. For reverberation, the definition of the electric field is important. Sometimes, a more expensive chamber than the competition offers could save much money on the amplifier price. These elements, room and amplifier, influence each other in performance and price.”

Martin: “Clients should also try to think scaleable for future use. I know it’s complicated sometimes, but thinking ahead might save you the burden of building a higher room or replacing your amplifier. Some companies offer confusing ‘upgrades’ where they replace the amplifier with a new one at a discount. We have developed amplifiers with flexible modules, which can be truly upgraded. Nobody likes extra costs, so it’s better to think long-term, and together with Comtest, we can help you with that.”

In the photo, an example of an excellent combination for radiated immunity is the R&S®BBA300 Broadband amplifier, which provides linear high power over ultra-wide frequency ranges, combined with the Comtest Z-fold stirrer for our LUF-200.

Do you want to know if your reverberation chamber is scaleable and futureproof? Contact one of our technical consultants, Hanneke Mertens – van Veen, Marc Le Roy, or Uliana Trucchi.

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The advantages of screwing clampings

It is not easy to replace soldered finger-stocks in the doorframe of your test chamber. That’s why we switched already in 1999 to screw clampings. Our colleague Gerco van Diemen explains why you will benefit from this. “Clampings hold the finger-stocks in place. Finger-stocks are the copper clamps that ensure that the door of a test chamber is completely sealed and no RF leakage occurs. They are a vulnerable part of a chamber’s Faraday cage construction. Traditionally, these are soldered, but we have developed a way where using screws has the same protective effect.”

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.