The DRASH® EMI Shelter protects sensitive electronic equipment from the effects of Electromagnetic Interference (EMI), and contains Radio Frequency Interference (RFI) signals generated by equipment within. EMI Shelters also reduce the potentially damaging effects of a High-Altitude Electromagnetic Pulse (HEMP) and the harmful effects of electrical coupling that can be caused by Near Strike Lightning (NSL).

Features include:

  • Interior cover, floor and doors are constructed from independently-tested RFI blocking material for a completely enclosed shield
  • Includes greater than -50 dB attenuation of RFI over a frequency range of 150 MHz to 3.0 GHz
  • Robust grounding system protects personnel from Electrostatic Discharge (ESD) and Electrical System Fault
  • High-Altitude Electromagnetic Pulse (HEMP) protection significantly reduces electromagnetic pulse effects to protect internal equipment
  • Lightning Protection System (LPS) available to mitigate the risks of direct lightning strike to the shelter
  • Operable in weather extremes from -50°F to 131°F (-45.6°C to °55C
  • Each DRASH EMI Shelter can be integrated with a special Utility Support Transport (UST) Trailer to provide a seamless power and environmental control package
  • DRASH EMI Shelters are available in C, S, XB and M Shelter variants, offering 109 to 748 ft2 (10.1 to 69.5 m2) of usable space.

Conductive metallized Emitex fabric® features:

  • RF shielding and general high conductive metalized Emitex fabric
  • Three metalized layers
  • Surface resistance: <0.02 Ohms
  • Shielding effectiveness: average 85 db from 30 Mhz to 10 Ghz
  • Temperature range: -22°F to 194°F (-30°C to 90°C)
  • Total thickness: 0.003" (0.1 mm) nominal
  • Number of splices: 1/100M nominal
  • Shielding effectiveness: 84.3 measured average, 81.5 Resistivity