Are Electronic Aiming Devices EMP tested

[DefendersOfValda]

Or EMP safe.

The price of "irons" isn't exactly cheap these days. 2 to 300 a set for good names brand sets.

But the real question is, are any of the electronic red dots and HWS devices safe after an EMP detonation?

Definitely puts ACOGs back on my shopping list. But that's a mortgage and half.

With Obama, Lynch, Clinton, and Comey essentially nullo Federal Law. And preparing this country for race war this summer, and during conventions.

The future is unpredictable. And I just thought I had more time to invest in sights.

Might just get a whole bunch of $30 Chinese sets, and upgrade as feasible.

[DefendersOfValda]

Extreme body modifiers will go so far as to self mutilate, remove their own testicles.

The act, the action, and the person, are referred to as nullo.

[Brush Guard]

Would an EMP affect a device that is turned off at the time of incident?

[Brush Guard]

I found the below on the striat dope massage board.

I wonder if a standard rifle safe can act as a “Faraday Cage?

http://boards.straightdope.com/sdmb/archive/index.php/t-389228.html

EMPs aren't anywhere near as deadly as those horrid shows on the Discovery channel might lead you to believe. First of all, as was previosly mentioned, EMPs follow the inverse square law, so their effectiveness drops off very quickly with distance. The second thing is that whenever you have a metal box it will completely shield whatever is inside the box from the EMP. You can google the term "faraday cage" if you want more details on why this happens.

Would EMP affect devices that were turned off at the time of the pulse?

Depends on the device. For something like an ipod, the headphone wires are going to act like a natural radio antenna and will channel energy from the EMP right into the ipod. Whether the ipod is on or off at the time won't make much difference.

EMPs also hit power lines, and once a pulse is coupled onto a power line it can travel quite some distance, although it will tend to be attenuated quite a bit by transformers. Still, you might get a decent noise spike coming down the power line from an EMP. It might be just powerful enough to cause damage to your device, but might not be powerful enough to jump the gap between the contacts when the power switch is off, so in that case, turning the device off might save the device.

A lot of devices today though don't turn completely off. Your computer, tv, stereo, etc. all are still "on" even when you turn them off. They might not have power to all of their circuits inside, but they have power to at least some circuitry so that they can respond to a remote control to turn them on. Old computers with an AT type power supply are switched completely off when you turn the power off. An ATX power supply (which pretty much replaced AT supplies around the time of the first Pentium CPUs) does not switch completely off and is more vulnerable to a noise spike coming up through the AC line.

Noise spikes can also come up through the phone and cable wires, causing damage.

Will an EMP destroy the electronics in my car?

Uh, maybe. The body of a car makes a natural faraday cage to some degree, but since the car isn't completely surrounded by a metal box, it's not a perfect faraday cage. A lot of cars have plastic body panels instead of metal too. Police have experimented with EMP weapons to stop cars, and while they have sometimes managed to stop cars under controlled conditions, the EMP just isn't reliable enough to make a practical system for stopping cars. The radio is more likely to be damaged than the car's computer. Really old cars that don't have a computer have much more rugged and simple electronic circuits, and are far more likely to survive the EMP.

Most cars have a "cripple mode", meaning that they will still run even if the computer gets fried, although they may not get anywhere near optimal performance. I had an old Buick that blew its computer. The gas mileage dropped to about 12 mpg and it sputtered a bit when sitting at a stop light, but it still ran. The "War of the worlds" scenario where all of the cars just died isn't realistic.

[Whiterabbit]

EMP is pretty low on the list of criteria I use to select a red dot.

[Carcassonne]

Or EMP safe.

The price of "irons" isn't exactly cheap these days. 2 to 300 a set for good names brand sets.

How good do you shoot with regular AR sights like those on an A2, and how much worse do you shoot with a set of Magpul sights?



.

[orangeusa]

EMP is pretty low on the list of criteria I use to select a red dot.

Funniest thing I have read tonight. Yeah, pull the red dot and use iron sights after the Apocalypse.

[flyer898]

I just ordered my first AR. It will be a while before I have it in hand. I am thinking about a low power variable scope. Perhaps the 1.25-4 Leupold? As far as EMP is concerned it would be as safe as iron sights.

[REDdawn6]

[DefendersOfValda]

How good do you shoot with regular AR sights like those on an A2, and how much worse do you shoot with a set of Magpul sights?



.

Hit what I shoot at.

I ordered some Chinese sights to check them out.

[DefendersOfValda]

Funniest thing I have read tonight. Yeah, pull the red dot and use iron sights after the Apocalypse.

Lot of Iron sites are plastic..polymer.

Ex, the regular Magpul MBUS are polymer.

[POLICESTATE]

I use GG&G Gas Block front folding site (actually the entire upper is GG&G) and a GG&G MAD rear sight. Co-witnessed through an Aimpoint. If the aimpoint fails it don't matter. Plus I have a dial to easily change range from 200-600 meters, not that I can hit anything that far out but it's handy nonetheless.

All parts are metal. Expensive? YES. However it is absolutely worth it. Not having functioning sights on a rifle makes it pretty useless for anything beyond point blank range.

I would not get polymer sights myself.

[ElDub1950]

A Red Dot is far more likely to die from an average everyday electronics failure, dead battery, or damage from dropping it. But some EMPs would damage it, some wouldn't.