Specifications

• 3/16" aluminum plate
• MuMetal interior lining available
• Three-way gasketing forms a robust Faraday cage
• Six (6) stainless steel clamps
• Stainless steel handles
• Casters for easy maneuverability
• Built-in ground lugs
• Rugged powder coat finish
• Made in USA - Troublesome Gap tough

Weight & Dimensions

• 40 lbs
• Inside: 15.5" x 17.5" x 13.25" (L x W x H)

Description

Be prepared in the event of an EMP (Electromagnetic Pulse) or CME (coronal mass ejection) by storing your most valuable belongings in an EMP resistant box. This box is made from 3/16" aluminum plate welded together. The connection between the lid and the box uses three types of industry standard gaskets to form a robust Faraday cage.

You can quickly enter and then reseal the box with six stainless steel clamps. Easily maneuverable with the four caster wheels on the bottom, and two stainless steel handles near the top. When not in transit, lock down and ground the box using the built-in ground lugs.

This box uses COTS (Commercial Off The Shelf) technology to achieve high performance in a rugged box.

Custom sizes are available upon request. The expandable design allows us to create unique sized boxes on a per customer basis with minimal design work. An optional MuMetal iron lining is available as an add on for protection from the magnetic effects of the EMP. Additional requirements can be added to the box to suit your specific needs.

Contact Montie Roland to specify how you would like your Montie Gear EMP Resistant Box configured (montie@montie.com)

Important Features

• A large, sealed container to resist against EMPs and CMEs
• Three sealing points allow for greater resistance
• Optional MuMetal lining protects from the magnetic effects of an EMP
• Large enough to fit most of your important electronics in one container (laptop, tablet, hard drives, etc.)
• Custom sizes available
• Quick access stainless steel latches
• Easy maneuverability
• Product is locally made in North Carolina from North Carolina and US made components.

Testing Results

Initial testing on 13 Jun 14, indicates that you can expect a minimum of 50 dBm of shielding effectiveness from 100 kHz to 1 gHz, with a shielding effectiveness greater than 76 dB at 300 mHz and 66 dB at 1 gHz.

100 kHz test:

Method: Transmit loop antenna driven by Arduino UNO comb generator. The receive antenna was a similar loop antenna. The receive antenna was connected to a spectrum analyzer.
With transmitter outside the box: -6.0 dBm
With transmitter inside the box: -51.5 dBm
Measurement noise floor: -50.0  dBm.
Shielding Effectiveness > Greater than 45.5 dB.  

500 kHz test:

Method: Transmit loop antenna driven by Arduino UNO comb generator. The receive antenna was a similar loop antenna. The receive antenna was connected to a spectrum analyzer.
With transmitter outside the box: -47.0 dBm
With transmitter inside the box: -90.73 dBm
Measurement noise floor: -88 dBm
Shielding Effectiveness > 43.73 dB

18.3 MHz test:

Method: Transmit antenna from AET comb generator. The receive antenna was Biconolog. The receive antenna was connected to a spectrum analyzer.
With transmitter outside the box: -52.27 dBm
With transmitter inside the box: -97.0  dBm
Measurement noise floor: -98 dBm
Shielding Effectiveness > 44.73  dB

300 MHz test:

Method: Transmit antenna from AET comb generator. The receive antenna was Biconolog. The receive antenna was connected to a spectrum analyzer.
With transmitter outside the box: 6.6  dBm
With transmitter inside the box: -70 dBm
Measurement noise floor: -68 dBm
Shielding Effectiveness > 76.6 dB

1000 MHz test:

Method: Transmit antenna from AET comb generator. The receive antenna was Biconolog. The receive antenna was connected to a spectrum analyzer.  
With transmitter outside the box: -19.6 dBm
With transmitter inside the box: -86 dBm
Measurement noise floor: -86 dBm
Shielding Effectiveness > 66.4 dB

Brochure

Download brochure.

Meet the Staff

The Montie Gear staff works hard to provide you with a truly heirloom quality and high performance. Montie Gear is made locally so, if you wanted to meet everyone that worked hard to make your slingshot and see all the processes that went into the product, then we can arrange that! This is a benefit that few companies can offer. Contact us to set up a tour.