Posted on 04/27/2022 8:30:38 AM PDT by Chicory
I have been wondering about a couple of things.
First, Faraday cages protect electronics within them from EMPs, right? So would the metal body of a car act as a Faraday cage and protect the electronics within the car?
And I was also wondering... there is a foil-lined envelope I can keep my credit card in to prevent a passerby with a special machine from stealing the info... I wondered if a similar envelope could protect my phone from being located all the time? And maybe that would also protect the phone from EMPs?
Note: I am not going anywhere that would be of legitimate interest to anyone, but I just don't like the idea that they have records of everywhere my phone goes.
> I wondered if a similar envelope could protect my phone from being located all the time? And maybe that would also protect the phone from EMPs?
Since phones radiate location on the gigahertz freq, I think there would be no effect by wrapping it with metal etc.
Please do not disclose your Rabdom data
Could disabling “Location” still make the phone trackable?
>Could disabling “Location” still make the phone trackable?
If you disable location, I’m pretty sure it disengages the GPS locators, but cellphone ping triangulation (from my opinion) could still easily be used to track you.
I wouldn’t trust having any type of cell phone on my person, even if off, if I was concerned about being tracked.
Very good questions. Here’s another.
When making a tinfoil hat, is it shiny side in or shiny side out?
I can dig it up, but the US govt did simulated EMP testing on 19 vehicles. Don't know why 19 instead of 20. When the EMP hit, all of the vehicles stopped running. But, after the EMP, most (17 IIRC) started right back up. Two of them needed electronic parts replaced (engine computer?). It's not as bad on vehicles and computers etc as people think.
Now, the empire's power grids would be TOAST after one good EMP burst 400 miles above Kansas...
Enclosing it in any metal box should prevent the phone from connecting to a tower.
35-year RF design engineer here, with cellular module & antenna design experience.
I believe the manufacturers have said that the difference in sides is just a product of the manufacturing. So, there is no ‘wrong’ side.
Bttt!
I wrapped my phone with aluminum foil and then tried to call it. It did not ring.
Unfortunately, Cars are mostly made out of plastic.
But there is some protection. E.G. during thunderstorm, the car is the safest place to be.
In real world, it is hard to make perfect Faraday’s cages anyway. Even quite sophisticated shields do not protect 100%.
Two separate sheets. One shiny side in, the other out. Connect each sheet to a 9 volt battery for extra protection.
Turn off the location finder
A Faraday cage.
If you look up ‘Faraday Cage’ you will see that the protection requires a continuous conductive surface that leads to a ground wire for discharging the ‘pulse’. Thus a car fails due to windows and lack of ground. The advice about safety from lightning remains valid as the car’s metal shell (Corvettes need not apply) is acting as a conductor and the strike will do a ‘spark gap’ jump to the ground.
Faraday bags and pouches are a shield for the contents and are limited to protecting more against detection than EMP. They are also limited by practicalities as higher protection (frequency ranges & power) needs bulkier shielding. Also a shield bag sufficient for reduced detection of cell phone will conversely make you unable to use that cell without removing it from said protection.
The rotation of the earth generates power in the north-south power lines. An emp would generate high voltage in these lines.
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