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Science & Testing
All information regarding shielding effectiveness

Average Shielding & Competitor Comparison

Average shielding was calculated in two regions of the frequency spectrum. The region between 10MHz and 10GHz was chosen due to the number of commercial and military communication protocols that fall within this region. This region also represents the bottom end of where faraday shielding is fully effective (as opposed to shielding via magnetic absorption).
The average shielding of OffGrid Faraday bags is 103db on average between 10MHz and 10GHz compared to competitors'
average shielding 95.5db in the same region. The average shielding acrossthe full testing spectrum is 82db for OffGrid Faraday bags vs competitors average shielding of 77.5db. Competitors' test results taken from a major industry player and data was published on their site. Competitors testing was performed by the same third party lab using the same test methods.

Who Needs OffGrid?

OffGrid Faraday protection is for individuals and corporations concered with the growing threats to thier digital privacy, physical security, and data security/

TRAVELERS

CAR OWNERS

JOURNALISTS

BUSINESS PROFESSIONALS

Testing Introduction

This page presents the results of testing conducted on OffGrid Faraday Bags to determine their
effectiveness in attenuating signals within the frequency range of 10kHz to 40GHz. OffGrid Faraday
bags are designed to protect electronic devices from electromagnetic interference by blocking all
wireless signals, including cellular, Wi-Fi, Bluetooth, RFID and GPS.

In this testing, we aimed to evaluate the performance of offgrid faraday bags in shielding electronic
devices from electromagnetic signals that could compromise their security and privacy. All testing was
performed by a third party lab, Keystone Compliance, and results were cross referenced and validated by
the Wireless Research Center. For the test, high-power frequency generators and RF analyzers were utilized
to measure the signal strength both before and after the introduction of the bag.

The obtained results were calculated by determining the difference between
the signal strength with and without the bag. To ensure accuracy,all results were calibrated against
known reference samples. The results of this testing provide valuable insights into the effectiveness
of OffGrid Faraday Bags and their suitability for use in different scenarios. It is intended for use
by individuals and organizations seeking to protect their electronic devices from potential signal
interception or interference.

Interpreting Results

All bags were tested by taking at least ten attenuation measurements at each deAll bags were tested by taking at least ten attenuation measurements at each decade between 10kHz (10x103 Hz) and 40GHz (40x109 Hz). Attenuation is measured in decibels which is logarithmic, so each 10 decibel increase represents one order of magnitude more shielding (for example, 90db attenuation blocks ten times more energy than 80db attenuation).

The frequency range tested covers all major civilian communication bands and most military communication bands. This range also covers frequencies specified by United States DOD as being present in a high-altitude electromagnetic pulse (HEMP). HEMP is a type of electromagnetic pulse (EMP) that can be caused by a nuclear detonation in the upper atmosphere. HEMP can potentially damage or destroy electronic equipment and infrastructure, including military communication systems.cade between 10kHz (10x103 Hz) and 40GHz (40x109 Hz). Attenuation is measured in decibels which is logarithmic, so each 10 decibel increase represents one order of magnitude more shielding (for example, 90db attenuation blocks ten times more energy than 80db attenuation).

The frequency range tested covers all major civilian communication bands and most military communication bands. This range also covers frequencies specified by United States DOD as being present in a high-altitude electromagnetic pulse (HEMP). HEMP is a type of electromagnetic pulse (EMP) that can be caused by a nuclear detonation in the upper atmosphere. HEMP can potentially damage or destroy electronic equipment and infrastructure, including military communication systems.

Sample Attenuation Frequency Chart

Region

1. 400 MHz - 800 MHz

2. 800 MHz - 2.4 GHz

3. 3.4 GHz - 6 GHz

4. 22 GHz - 39GHz

Used By

TV & 5G Cell Signals

Bluetooth, GPS, & WIFI

4G & 5G Cell, WIFI

5G High Speed

EMP Protection

In the figure above, the dotted line indicates the shielding threshold defined in Mil-STD-188-125-2 for HEMP protection requirements specified for radio communication systems used by the Department of Defense. The standard requires that these systems be designed and built to withstand the effects of HEMP by incorporating appropriate protective measures such as shielding, surge protection, and grounding. Additionally, the standard specifies testing procedures to ensure that the HF radio communication systems meet the required HEMP protection levels.

Communication/Data/Tracking

The shaded regions in the figure above highlight common communication/data transmission bands used by military and civilian RF devices. There is no specification that recommends shielding levels to prevent data interference or interception in these bands, but in practice, generally data transmission drops out above 80db attenuation in the far field below 6GHz and above 40db above 20GHz. Medium frequencies (1MHz) and below propagate magnetically moreso than electrically and are typically harder to shield with Faraday based technologies.

Products Tested

Below are the following products we tested in our OffGrid catalog

OffGrid

Duffel

OffGrid

Premium

OffGrid

Backpack

OffGrid

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