Siemens Healthcare

Anechoic Chamber for 10m testing on Industrial Electronics (ISM) applications

This 10m Semi-Anechoic Chamber was designed and installed at Siemens Healthcare in Erlangen, Germany for full-compliance radiated emission measurements in the 3m and 10m test distances, and for radiated immunity testing in the 3m test distance. The facility covers the whole frequency range 26MHz to 40GHz in accordance with the latest editions of International, US and European standards for EMC testing and site validation. Listing the 10m site as an FCC facility and receiving European accreditation or VCCI recognition are both possible.

Typical EUTs (Equipments Under Test) are industrial machines, scientific and medical equipment (ISM) as well as information technologies equipment (ITE).


The chamber’s modularity for RF shielding and RF absorber lining is a proven advantage should the chamber ever be relocated or expanded.


Technical Data

Dimensions: 21.70m x 13.00m x 8.55m (L x W x H)


Radiated Emission Measurements

  • 30MHz to 1GHz: Full compliance with ANSI C63.4 and CISPR 16-1-4 in 3m and 10m measuring distance
  • 1GHz to 18GHz: Full compliance with CISPR 16-1-4 in 3m and 10m measuring distance
  • Quiet Zone: 3m (d=3m) and 5m (d=10m), cylinder height 3m, floor standing


Radiated Immunity Tests

  • 80MHz to 18GHz: Full compliance with EN 61000-4-3
  • 1.5m x 1.5m uniform field in 3m test distance



The chamber is fitted with a 6m diameter turntable and 10t maximum load, an antenna mast and controller. Additional RF shielded rooms for the power amplifiers and a test equipment control room were provided.

Other customized solutions for industrial testing were installed, these included personnel doors and a 3m x 3m automatic gate with automatic ramp for EUT entrance as well as customized RF shielded CCTV camera systems, audio intercom, smoke detection, fiber optic converters, RFI power line and signal line filters and RF absorber lining with 12“, 18” and 30” matched hybrid RF absorbers with light reflective white caps.

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