Author Topic: EMP Shield Scam  (Read 2789 times)

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Offline rgarito

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EMP Shield Scam
« on: May 23, 2019, 05:14:18 pm »
This should be highly entertaining....

https://empshield.com/
 

Offline Neilm

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Re: EMP Shield Scam
« Reply #1 on: May 23, 2019, 06:19:05 pm »
Rubbish - it only works on 120 V...
Two things are infinite: the universe and human stupidity; and I'm not sure about the the universe. - Albert Einstein
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Offline Brumby

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Re: EMP Shield Scam
« Reply #2 on: May 24, 2019, 05:04:58 am »
Yeah ... there is a certain credibility gap calling it an "EMP" shield.

That said, however, there could be some benefit....

EMP creates potentially high, damaging voltages by interacting with conductive materials.  In the case of a house, you would have the various electrical/electronic devices themselves and you would have the wiring that feeds power to them.

Devices that are encased in a full metal enclosure will have the essence of a Faraday shield (albeit potentially compromised by gaps and openings), but the wiring feeding them will be exposed.  In this case, the wiring could pick up an induced EMF.  This, however, would be akin to the same sort of risk you get from lightning - and in the case of nearby lightning strikes, the mechanism will be practically identical.  (A direct lightning strike will be pretty much mean the death of anything remotely connected.)  I believe this is why they include lightning protection in their claims.

As it is, I look at it as a bit of marketing flim-flam because, let's face it, the current means of creating a dangerous EMP is limited to atmospheric detonation of a nuclear device - and if that's happening somewhere close enough to cause a damaging EMP, then I think you'll have bigger worries.
 

Offline Jeroen3

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Re: EMP Shield Scam
« Reply #3 on: May 24, 2019, 06:02:19 am »
So $300 for a box with a varistor?
 

Offline Daixiwen

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Re: EMP Shield Scam
« Reply #4 on: May 24, 2019, 06:25:13 am »
I find it interesting that they publish the tests results, showing that the EMP shield passed the RS105 test of the MIL-461G standard, (simulating radiated emissions from a nuclear detonation) and the high current pulses, that simulate conducted emissions on the cables due to a nuclear explosion. What is nice in those test reports is that they show how they performed the test, including some pictures (what is that mysterious Unit 4 on the bottom of page 9 by the way?)
As we could expect, they only tested the EMP shield itself, and not the shield connected to an equipment to protect and of course the only thing this test proves is that the EMP shield itself can survive an EMP. So money well spent I'd say  :-DD
 
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Offline tkamiya

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Re: EMP Shield Scam
« Reply #5 on: May 24, 2019, 05:05:53 pm »
Seems people who spend tons of money on these things doesn't know anything about EMP and EMF on factual basis.  Some of the tactics sellers use are down-right fraud, and there are so many out there.

Tried many times to explain electro-magnetic spectrum.  I usually lose them on similarity between visible light, microwave (oven), and house hold mains.  I never get to ionozing and non-ionizing radiation, which is really a core of the subject.
 

Offline orion242

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Re: EMP Shield Scam
« Reply #6 on: May 24, 2019, 06:02:20 pm »
Quote
Quick acting HEMP surge protection that switches in less than <1 nanosecond
:-//
 
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Offline OE2WHP

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Re: EMP Shield Scam
« Reply #7 on: April 15, 2020, 08:05:23 am »
just wanted to reainmate this thread, because someone from a prepper forum (where I happen to be a mod) brought this up as the new best solution in the EMP protection world.
As far as I know there is nothing that can prevent electronics from an EMP besides a proper faraday cage. So, I would be highly interested in your opinions regarding this products.

Thanks
OE2WHP
 

Offline Daixiwen

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Re: EMP Shield Scam
« Reply #8 on: April 15, 2020, 08:20:43 am »
My professional opinion is that this is crap  ;D

Not only you would need to make your whole house a faraday cage, but you would also need to filter any cable coming in and out of your cage. This includes of course the power, but also Tv/radio antennas, phone and internet. You would need good passive filters, this box will not do anything good.

But anyway, if you have a nuclear explosion near your house, you will probably have more things to worry about than fried electronics :D
 


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