SIEPEL HERA 3F EMC Pre-Compliance Chamber

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  • Extended shielding performances up to 40 GHz
  • Shielded control and amplifier rooms
  • Plastic paint for pyramidal absorbers with wide range of colors
  • Other types and dimensions of doors
  • Electrically-assisted door latching/unlatching
  • Antenna positioners
  • Floor hatches with connection points
  • Additional power filters, data filters and special feedthroughs
  • CCTV / Audio monitoring systems
  • Fire detection systems
  • On request, some measurements can be accredited ISO 17025 (accreditation number 1-6220, scope available on
  • Military/Automotive/RadioCom standards compliance

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SIEPEL HERA 3F EMC Pre-Compliance Chamber

The Hera 3F is designed to perform pre-compliance emission and full compliance immunity tests at 3m distance on commercial equipment. The design of the structure is optimised for maximum performances, in minimum space. The shielding and its pyramidal absorbers are manufactured by SIEPEL.

The Hera 3F is a EMC PRE-COMPLIANCE CHAMBER FOR CISPR 16-1-4 & IEC/EN 61000-4-3.



Shielding effectiveness complies with EN 50147-1 (10 kHz - 18 GHz)

Radiated emission (EMI) testing: Fully compliant with the following standards from 30 MHz to 18 (40) GHz
  • CISPR 11
  • CISPR 16-1-4
  • CISPR 22/EN 55022
  • CISPR 32
  • EN 50147-2
  • EN 55011
  • ANSI C63.4

Radiated immunity (EMS) testing: Fully compliant with EN/IEC 61000-4-3.

Radio standards: All ETSI standards referring to CISPR 16 and EN/IEC 61000-4-3.

 Total overall with steel stiffenersInternal usable dimensions
8.0 x 3.4 x 3.4 m26 x 11 x 11 ft7.2 x 2.5 x 2.7 m24 x 8 x 9 ft

  • All absorbers batches are tested by SIEPEL for reflectivity performances between 30 MHz – 1000 MHz
  • Their raw materials are compliant to RoHS / REACH and free of substances in the current list of Substances of Very High Concern (SVHC) published by the European Chemicals Agency (ECHA).