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

Request Quote

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

World‑Class EMC Testing Solution

March 16, 2026

This CISPR chamber elevated our emission measurement capabilities with superior isolation and dependable performance.

Joseph Carter

Ideal for R&D and Compliance Labs

March 16, 2026

The chamber serves both development testing and formal compliance needs with consistent, high‑quality results.

Michael Adams

Great Support and Documentation

March 16, 2026

DMCRF provided clear documentation and responsive support, helping us validate setup and interpret results correctly.

Hannah Morris

Reliable Across Frequency Bands

March 16, 2026

The wide frequency coverage meets CISPR requirements for both conducted and radiated emissions testing with precision.

David Nelson

Efficient EMC Test Workflow

March 16, 2026

The chamber design and layout streamline CISPR measurement procedures, saving valuable lab time and resources.

Emily Roberts