CISPR Chamber

DMC-CISPR is a Semi-Anechoic Chamber or referred as CISPR 25 chamber is a RF-shielded semi-anechoic chamber providing an ideal environment for compliant CISPR 25 testing. The chamber is specifically designed for CISPR 25 (2016) and ISO 11452-2 measurements of automotive components with maximum dimension up to 1-meter. It is made of DMC-PAN series self-standing shielding, ferrite tiles and Polypropylene based hybrid absorbers on all walls and ceiling with reflective ground plane.

Product Compliance Standard:

CISPR-25

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Typical Specifications

Chamber Type	DMC-CISPR 25
External dimension	5.5m x 5.5m x 3.5m (LxWxH)
Load capacity	1500 Kg (Minimum), Higher load capacity option available
Frequency range	30 MHz to 40 GHz

Performance & Compliance

Full Compliance Emission per ANSI C63.4 and CISPR-16
Normalised site attenuation deviation (NSA) is better than ±3.5 dB between from 30MHz to 1 GHz sVSWR deviation better than ±5.5 dB from 1 GHz to 18 GHz.
Full Compliant Immunity per IEC/EN 61000-4-3
Field Uniformity deviation better than 6 dB at 75% of 16 measuring points from 26 MHz/ 80 MHz to 18 GHz

Frequently Asked Questions

What is a CISPR chamber and how is it used for EMC testing?

A CISPR chamber is a semi-anechoic test environment designed for electromagnetic compatibility (EMC) testing. It measures radiated emissions and immunity of electronic devices according to international EMC standards.

What standards are supported by the CISPR chamber from Diamond Microwave Chambers Ltd?

CISPR chambers from Diamond Microwave Chambers Ltd support standards such as CISPR 25, CISPR 16, and other automotive EMC testing requirements. These standards ensure reliable measurement of electromagnetic emissions.

What types of automotive components can be tested inside a CISPR 25 chamber?

Automotive electronics such as ECUs, infotainment systems, sensors, control modules, and communication devices can be tested. The chamber evaluates their electromagnetic emissions and immunity performance.

What is the typical frequency range supported by a CISPR chamber?

Most CISPR chambers support testing from 150 kHz to 18 GHz or higher, depending on the design and absorber configuration. This range covers common automotive EMC testing requirements.

How does a semi-anechoic CISPR chamber reduce electromagnetic interference during testing?

The chamber uses RF absorbers on the walls and ceiling to absorb electromagnetic waves and minimize reflections. Its RF shielding prevents external signals from affecting test results.

What materials are used inside a CISPR chamber to absorb RF reflections?

Ferrite tiles and hybrid RF absorbers are commonly installed on the walls and ceiling. These materials absorb electromagnetic energy and reduce unwanted signal reflections.

What are the typical dimensions and load capacity of a CISPR testing chamber?

CISPR chambers vary in size depending on testing requirements, often designed for 3 m or 10 m measurement distances. They are built with strong flooring to support heavy automotive equipment and test setups.

Why is CISPR 25 testing important for automotive electronics compliance?

CISPR 25 testing ensures that automotive electronic systems do not produce excessive electromagnetic interference. This helps maintain reliable vehicle communication and electronic system performance.

Can a CISPR chamber be customized for specific EMC testing requirements?

Yes, CISPR chambers can be customized in terms of size, absorber type, shielding performance, and measurement systems. Custom designs allow laboratories to meet specific EMC testing standards.

How does a CISPR chamber ensure accurate radiated emission and immunity testing?

The chamber provides a shielded environment with controlled RF absorption to minimize reflections and interference. This ensures precise and repeatable EMC measurement results.

What Our Clients Say

Reliable EMC Chamber for Precise Radiated Testing

September 24, 2026

We’re very pleased with this EMC chamber for radiated testing. The stable testing conditions have helped us collect consistent and dependable data, while the strong construction gives the chamber a solid, reliable feel. Overall, it has been a valuable addition to our testing setup.

Natalie Brooks

High-Performance CISPR Chamber for Compliance Testing

September 24, 2026

We’re very pleased with the performance of this CISPR chamber. It has helped us complete compliance testing efficiently, and the dependable operation has made our workflow smoother. The easy-access design is also convenient for technicians during regular testing. Overall, a well-engineered solution for our laboratory.

Ryan Thornton

Durable Chamber for Demanding EMC Testing

September 21, 2026

We’re very pleased with the performance and build quality of this chamber. It has delivered consistent and accurate results across our EMC testing work, while the durable construction feels well suited for demanding laboratory use. Overall, it has been a reliable and professional solution for our testing requirements.

Brittany Foster

Reliable CISPR Chamber for Automotive EMC Testing

September 21, 2026

We’re very pleased with this CISPR Chamber for our automotive EMC testing requirements. The shielding performance helps keep external signals very low, creating a more controlled testing environment. Since installation, our testing workflow has become smoother and more efficient. Overall, it has been a reliable addition to our laboratory.

Cameron Reynolds

Spacious EMC Chamber with Precise Performance

September 15, 2026

We’re very satisfied with the performance of this EMC chamber. The absorber technology does a great job of reducing reflections and helping us achieve more precise measurements. We also appreciate the spacious design, which makes it easier to handle multiple test setups. Overall, it’s a reliable and well-designed chamber for professional testing.

Anna Richardson

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