/diy/ - Do It Yourself

no

>>1965870
Study EMP. That's good enough to protect disconnected electronics. EMP generates current by the magnetic pulse inducing current in the grid and any suitable conductors. It's not some magic that destroys everything electronic but wise people ensure they will not require anything delicate and have manual backup tools and equipment so they can fix or replace anything a disaster damages.

>>1965870
covering it would. you want a layer of dielectric between the conductive material and your sensitive hardware

satellites have it done this way because you dont want to waste 4 ft of concrete or a inch of lead in weight on a satellite. i thinnk they do it aluminum and thats plated in copper to make it even lighter but the shell inside the satellite protects from solar flares and what not which would potentially be way stronger than a emp made by a nuke. yes solar flares can have disloged magnetic fields partially mixed in and the suns magnetic field actually extends past the earth to begin with but its twisted warped and constantly has field loops break and form

Hijacking this thread to ask question. Would a typical 90s car's ECU be already isolated by the body of the car?

>>1965975
no

>>1965975
Cars are not significantly effected by emps, at least last time I saw a review. Like 50% of cars running would die, but you just need to put it in park and restart.

Which is plenty bad if you're a normie driving down the freeway and arent prepared to slam your ebrake and manhandle your car in a straight line without power steering while slipping it into neutral to restart it.

>>1965991
>freeway
>muh power steering
Power steering is only even slightly necessary at low speeds or at a standstill. Mostly, the lack of power steering is merely an inconvenience when parking.
t. Has temporarily removed the power steering belt from my car and driven it just to see what will happen

>>1965997
>>1965991
Also I have a manual transmission, so I'm safe. Kek

>>1965997
Depends on the car.

It's pretty bad in a lot. You.must have got lucky.

I got grandpas old truck without power steering at all, and yeah, it's its not even a thought if you're moving.

I've also been in a 70s and 80s coupe and both were like pushing a boulder up a hill just to get to the side of the road when they died unexpectedly

>>1966003
My first vehicle was a used 1992 Toyota Tacoma with extra-wide tires, manual transmission, and no power steering. Fairly easy to turn for a guy. A family member had a 1991 Taco with power steering. It developed a leak and the power steering was out for a few days until they got it fixed. Much harder to turn even with stock width tires. So, the design has a fair bit to do with it too.

>>1965870
No

>>1965914
wrong any car made after 1978 will be kill

>>1965991
wrong

>>1966185
EMP causes damage by inducing voltage spikes in conductors, which damages electronics connected to those conductors. Cars are too small to catch much of an EMP. The strongest nuclear EMPs are far less intense than the field of a lightning strike, and cars handle lightning fine. EMPs are a concern for things connected to mains power or other large conductors.

>>1966185
https://youtu.be/cuus8OtPY0w
https://youtu.be/mil2g3YUcq0?t=270

>>1966197
to add to this anon, if you have forewarning of an oncoming EMP you can disconnect the battery then cycle the key several times to fully discharge any leftover charge in the vehicles electronics to make the car as electrically "inert" as possible.
after EMP event, reconnect battery everything in the car should run fine.

So is what this guy built useless?

https://www.youtube.com/watch?v=SPYXjsdcBHk

>>1966226
For what he has in box 50/50.

But most modern stuff, that's mobile would require restart at most. Concerns mostly came from cold war era, when semiconductors were new and fragile, most infrastructure connected with long landlines and radios mostly operated in HF and VHF using long antenas.

Any device sold must pass surge tests on any ports and static discharge to it's case without major loss of function to receive CE / FCC certs.

Mind you, having a weak link in some system can easily break this (e.g. a cheap knockoff usb charger where none of the protection components have been populated).

>>1966201
yes anon it's all a myth, that's why the US spent billions of dollars hardening their air planes and other equipment because they just need to restart. not because the EMP pulses would fry your cars ECM which the car will not run without.

I mean the police and military have EMP devices that will kill a car dead. but the EMP pulse from an air burst nuclear bomb meh.

>>1965870
Wouldn't lead be more effective? On the outside

>>1966185

>he doesn't have spare ECMs for all of his cars

>>1966410
How to protect from EMP. Build a big metal box around the thing you want to protect.

Hey anon, what are cars made out of?

>>1966416
No, just a continuous conductive surface all around. The material doesn't matter.

Actually, lead can be worse, as ionizing radiation hitting it can make the lead emit even more I.R. itself. But if you're close enough to worry about that, then the EMP is the least of your problems.

>>1966574
Car bodies never wrap all the way around the electronics.

>>1966769
And yet they protect them pretty well. They put a bunch of running cars inside the EMP zone of some nuclear tests and sometimes the cars didn't even stop idling after the blast wave hit. Many of the ones that did stop idling started right back up again when the ignition was turned. Sure, this was in the days before EFI but modern car computer systems are a hell of a lot better shielded than the electrical systems of cars 70 years ago.

>>1965870
Yes, but I would rather have a copper wire or mesh cage around the box. You want it to conduct around, this isn't something you just block.

>>1965870
If you live above 40°N and store it in a basement, even in a Carrington, it would be safe from the -72dBi it would receive. ground the shielding to a copper pipe and it would be safe to -98dBi.
t. Former HEMP certification specialist.

>>1965870
no. Did a project thread in summer. Tape worked for cell, wifi, but not usb. And the corners lets the signal in after some routine wear n tear. On the proside I got a shiny box.

Got a mission darkness bag with double layers, all signals blocked. I think they use a special fabric.

>>1966197
would a thinkpad survive an emp then?

i saw a video of one getting the shit zapped out of it by a van de graff and after it still booted

>>1965870
Your doing this to block 5g aren't you OP? you're one of "those" people!

>>1965991
modern cars have 100 of miles of wires and use 5000€ main computers made by nvidea these are surely going to fry,

doing >>1966206 can already fuck a modern car and have it loosing its vehicle identification number. or temporarily bricking the "Radio"

>>1967877

>>1967878
>shielded conduit

>>1968773
nothing is shielded in conduits
>t worked at car OEM

>>1966975
If using and SSD yeah

If worried buy an Evo-engined or earlier Harley and run a points ignition (or a magneto, that Fairbanks style was also common on cold war military equipment). You can also build around a diesel of your choice with mechanical injection and an air starter.
It's unlikely EMP would take out early EI but spares are cheap and anyone driving old vehicles at this point knows who to care for them. My F250 and motorcycle collection will be fine.

>>1965870
Even if it did work what would your phone communicate with afterwards?

>>1966059
>1992 Toyota Tacoma
>no power steering
This seems improbable.

>>1972877
OK, turns out I'm wrong. I just assumed that any vehicle past 1990 had power steering but googling a bit tells me widespread adoption more a Nauties thing.

>>1966003
I've raced quite a few different track cars, and no power steering is never a problem, especially at speed.

>>1974917
Okay. I must have just imagined needing to pull down on the wheel with both arms to get it to the shoulder. I'm sure it was fine because anon drives track cars.

>>1974923
How much can you bench?

>>1972877
My 93 Isuzu Trooper didnt even have airbags

>>1966003
Unless you have an Infinity with drive by wire and no steering column.

>>1966003

my daily doesn't have power steering, it's really only noticable when standing still

>>1965870
You want EMP protection?
you'll need to somehow short out every single pin of your sensitive component eg, cpu...That way no amount of EMP will induce any current into it. But I guess you can't do that

>>1965998
If it has an OBD connector, it has a computer to time the engine functions (like at least the spark plug).

>>1975439
Guess what? even analogue engines aren't safe....The magnetic pulse would induce a lot of current in ignition coil, creating a continuous arc at spark plug, essentially shorting it and overloading the coil itself thus destroying it.

>>1977742
>pulse
>continuous arc
I imagine you'd need a hell of a pulse in order to do that. The coil itself is wrapped in steel, which in turn is wrapped in the steel body of the car.

Be sure to use actual tin foil and not aluminum foil.

>>1966185
>says wrong, doesn't back his shit up.
Source: trust me dude.

Give it back, jamal.