shielded rooms

shielded rooms
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The facts about... shielded rooms
The function of shielding is to prevent radiated electromagnetic energy going into or out of a shielded chamber (Faraday cage).
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The Global EMC ‘pan’ shielding system is fabricated from 2mm thick galvanized steel.

The modular panels are bolted together using special flanged nuts/bolts which crush twin wire gaskets.


shield Applications:

  1. Military – secure speech (Tempest)
  2. Data Protection
  3. Medical shielding
  4. Vehicle test chambers – with fume extract & high volume air movement
  5. EMC chambers – conducted, compact, 3m, 5m and 10m chambers
  6. Radar RCS chambers
  7. Antenna test chambers
  8. Magnetic shielding (welded)


Typically the performance is as the table below:

Global EMC Ltd care about the visual aspects of the chamber, all visible external aspects are painted.


The facilities and intrusions are well engineered:

  1. Tin dipped steel honeycomb twin soldered into tin plated steel frame
  2. MPE power/data/signal/telephone filters
  3. Penetration panels with high quality coaxial ports, waveguides etc
  4. High speed connections via copper/fibre converter systems
  5. Special applications
Shield test to IEE299
10KHz mag
1GHz far
18GHz M'W
40GHz M'W
Door
61dB
>110dB
105dB
103dB
Air vents
>75dB
>110dB
>110dB
>105dB
Penetration panels
>75dB
>110dB
>110dB
>105dB
Power filter
>75dB
>110dB
>110dB
>105dB
Shielding panel seams
>75dB
>110dB
>110dB
>105dB

Where -80dB @10KHz is required Global EMC produce a twin-knife door system.



shielded rooms

High performance single latch doors – These are a long established cost effective design (>20 years), they give good and reliable service with a well proven uncomplicated design.

Ultra high performance door systems
(Hyper–shield)


These doors are multi-latch and twin knife with four rows of finger stock, These doors will yield >80dB @10KHz through to >100dB at 40GHz.


Other door systems


  1. Sliding doors
  2. Double doors
  3. Automatic doors
  4. Truck & military vehicle doors
  5. Internal swing doors

shielded rooms

Global EMC are experienced in all type of applications, our installers are fast and efficient.