EMP, the electromagnetic pulse countermeasures

Wow! Thank you. That'll keep me busy for awhile.

 

https://www.cisa.gov/sites/default/...CISA_EMP-Protection-Resilience-Guidelines.pdf

the view form the hambone side of things -https://www.qsl.net/n9zia/emp.html (hint, read for giggles)

A bit old (1973) but from the folks at Oak Ridge labs
https://apps.dtic.mil/dtic/tr/fulltext/u2/773423.pdf

Air University paper - https://media.defense.gov/2018/Nov/...DEMAIO_ELECTROMAGNETIC_DEFENSE_TASK_FORCE.PDF

from the boffins - Fast Rise-time Intensive EMP Protection for Communication RF Front End - IEEE Conference Publication
Fast Rise-time Intensive EMP Protection for Communication RF Front End

 

Does anyone have any input on these to use as emp protection. They are wrapped with duct tape metal tape and then copper tape. A couple layers of each. Inside is lined with cardboard. Then when full wrap the space between the lid and box with more aluminum and then copper tape.

Any thought? Thank you

 

Arggggggg. I thought it would be something like that. Never been able to get a clear answer before.

 

240MHz ~ 960MHz, 2.35GHz ~ 2.55GHz Handheld Spectrum Analyzer -115 ~ -5dBm Features Hold, Max, Ave, USB Port Includes Antennas (Directional and Stick), Battery
Would something like this work?

 

Put a cell phone or cordless phone there and call it. If the phone rings you have your answer.

 

Both a cell phone and a radio dont work inside it but my understanding is that the neither have enough power to be an adequate test

 

If they don't receive then it works. You have attenuated the signal enough to protect the devices unless you are standing right under the EMP event, then it rally isn't a concern.

 

I thought about that. Taped the inside of lid with both aluminum and copper

 

IF they don't get a signal then you know the box didn't fail miserably.
Most "shield boxes" allow a phone to work just fine.

 

that and using a kitchen microwave are the two biggest prepper hoaxes going >>>
that's been passed along about cell phones since the 1st days of those big bag phones - before that it was portable AM/FM radios

 

Can you go into more detail about cell phone issue?

 

Thank you. That helps to explain a lot.

 

I use a steel filling cabinet.

 

My microwave says it runs 2.5GHz.