EMPShield investing $1.9B with CHIPS support to build factory in Kansas
EMPShield[1] claims to make products that can protect against events such as lightning strikes and high-altitude nuclear explosions that generate EMPs.  As an EE I find the design, theory, and testing[2] extremely questionable.  It seems that this company has other skeptics[3].  It&#x27;s infamous with mechanics who see them in cars, or are asked to install them.<p>They sell a small box that hooks up to your car battery, or your the mains in the breaker panel for your house.  There&#x27;s a few feet of cabling to a small box which they claim can clamp the energy from the EMP.  If you try to search youtube for this product you can only find positive reviews from the &quot;prepper&quot; community, and any tear-downs seem to have been removed.  The company claims to be active with the military as well.<p>Their testing consists of legitimate testing for EMP, however they only test the unit itself -- not hooked up to anything.  I don&#x27;t see any evidence that this product actually works when hooked up to a car or house.  Am I going crazy here, is this a huge scam or some legitimate technology?<p>[1] <a href="https:&#x2F;&#x2F;www.empshield.com&#x2F;" rel="nofollow noreferrer">https:&#x2F;&#x2F;www.empshield.com&#x2F;</a>
[2] <a href="http:&#x2F;&#x2F;www.empshield.com&#x2F;wp-content&#x2F;uploads&#x2F;2019&#x2F;11&#x2F;EMP_Shield_Military_Testing_16_March_2019_Public2.pdf" rel="nofollow noreferrer">http:&#x2F;&#x2F;www.empshield.com&#x2F;wp-content&#x2F;uploads&#x2F;2019&#x2F;11&#x2F;EMP_Shie...</a>
[3] <a href="https:&#x2F;&#x2F;www.eevblog.com&#x2F;forum&#x2F;news&#x2F;emp-shield-scam&#x2F;" rel="nofollow noreferrer">https:&#x2F;&#x2F;www.eevblog.com&#x2F;forum&#x2F;news&#x2F;emp-shield-scam&#x2F;</a>