Just after an EMP

[es93546]

An effective faraday shield to survive EMP is much more complicated than that, usually having at least one complete copper layer then a separate layer of ferrous metal with lots of low resistance contact fingers around any door opening to provide a low impedance path around or across the door. I've been in places designed specifically to survive a nuclear event like the below ground can't talk about it areas of Falcon AFB (now Schriever AFB) in CO and many Tempest shielded rooms, and have watched as they performed compliance testing. It would take a lot of $$ just in sheet metal to build to those standards then it needs to be tested for survivability. Building something without the means to test it is a waste of time and $$, how would you even know it works?

I don't know all the details of what he did, that is why I need to visit him and have him show me what he did. I know he spent more than he thought he would. The thick sheet metal decision was based on how he insulated the shed and also has something to do with strengthening the load bearing of the building. Your post is material for a lot of questions for him. Thanks.

 

[exkalibur]

If the detonation is at high enough altitude (which increases the range of the EMP), the blast effects would be minimal to nonexistent. I've read that if the detonation was near the upper limits of the atmosphere and centered over Nebraska, electronic devices from coast to coast would be rendered useless. Unless, of course, you used it as a weapon.

It's true - but again my point still stands. If there is even a single detonation, anywhere in North America, EMP won't matter because there will be nothing left to be affected.

 

[prcguy]

It's true - but again my point still stands. If there is even a single detonation, anywhere in North America, EMP won't matter because there will be nothing left to be affected.

From what I've seen in predictions and reading that's not true. An EMP specific nuke would be detonated at high altitude where the main blast and fallout would not be a problem on the ground. Also from what I've been told by someone who has worked on EMP projects the high altitude bomb disrupts the earths magnetic field and that instantly shifting magnetic field, weak but huge, creates current in any conductor within range producing up to thousands of volts on wiring and circuit board traces in electronics, burning stuff up.

 

[BinaryMode]

Look up operation Starfish Prime.

^This.

Seriously, you all have the power of massive amounts of knowledge at your fingertips.

 

[TGuelker]

showing my age

Yes indeed. B batteries were used to power radios before homes were electrified.

 

[tvengr]

The only solution is to go back to vacuum tube radios. They are much less vulnerable to EMP than solid state devices.

 

[prcguy]

The only solution is to go back to vacuum tube radios. They are much less vulnerable to EMP than solid state devices.

Not a solution. The real solution is to convince any country that lighting off an EMP over the US will mean total destruction for their country. Ya wanna play? Your gonna loose!

 

[G7RUX]

EMP has not been proven, only theoretical. Probably because anyone who would be in a position to have EMP be an issue, is dead.

It is most definitely a real feature of both nuclear and thermonuclear detonations which has been both demonstrated and characterised to a degree for devices up to mid-1960s yields.

The effects are an issue over a wider range than the initial physical effects of such detonations but it is likely true that those affected would have bigger fish to fry in at least the short term.

 

[N6JPA]

Suppose i keek my radio in a Faraday bag. I live in Post Falls, What frequency would i tune to to monitor to listen for official government instructions or information?

Thanks in advanced,

When I was in the military 40 years ago the plan was to bury radios so if there was an EMP or nuclear strike we could dig them out to use afterwards. Well that was the plan by the commissioned officers in the military.

 

[FedFyrGuy]

And then, there's this.....

The Carrington Event: History's greatest solar storm

Extreme solar storms such as the 1859 Carrington Event can play havoc with technology on Earth.

www.space.com

 

[tvengr]

The only solution is to go back to vacuum tube radios. They are much less vulnerable to EMP than solid state devices.

Not a solution.

Years ago, the military came into possession of one of the latest Russian fighter jets. The electronics were still using tubes. The government concluded that was probably done to protect the electronics from EMP. I remember seeing the news stories about that.

 

[AB5ID]

Interesting read, Nuclear electromagnetic pulse - Wikipedia

 

[N6JPA]

Years ago, the military came into possession of one of the latest Russian fighter jets. The electronics were still using tubes. The government concluded that was probably done to protect the electronics from EMP. I remember seeing the news stories about that.

I think that was the MIG-25 where the soviet pilot flew it into Japan to collect an reward from the USA. But his family paid a heavy price for his betrayal.