i saw a concept drawing once of an M1 with a GAU-8 Avenger cannon mounted on it for urban warfare, BAD ASS!!!
Posted on 11/19/2019 6:49:44 AM PST by Lowell1775
I disagree. If the amplitude is high enough to melt your alternator (bridge across and melt wires) and short across your battery then it would kill you first.
Ummm, alternators require control circuitry, which includes semiconductors. You have to go back to generators to avoid that.
They require rectifiers. Rectifiers take the alternating waveform and rectify it to create a basic DC that is filtered to remove ripple.
And yes, you need a generator.... which old cars have.
Thinking about it more, the old tech diodes were massive, mostly because the technology wasn’t refined, and might actually survive an EMP.
A bridge rectifier in an alternator in a modern car is probably robust enough to ride through an EMP. It is the small geometry computer chip and computer control system that would fry.
For convenience, I installed a solid state cut out on my old generator based car. It would probably survive simply because it is a power device, capable of dissipating a lot of power, and it is a large geometry.
I was formerly involved in high energy EMI/RFI testing for cell phone towertop equipment and we occasionally used the testing site and gear on old junker vehicles. No, the diode trio will not survive, not even on a 68 GM B-Body. All of the things I mentioned earlier were things we saw happen in the test cell.
How did if fail? Damage and non-function or drop out and recovery as soon as the source was gone. The two standards...
And was the 68 GM car modified. People restoromod old cars and then they are no longer old. I put a solid state cut out on my 29 Model A Ford. The device is huge.
We tested at an OATS.
Cell? Sounds like an anechoic chamber? Surprising that you could fit a car in a chamber.
Radiated or conducted?
I also saw an EMP test range/site once and you could definitely fit a car in it; a tank, a jet fighter,...
Adblock slows down my system. It consumes way too much RAM and CPU cycles.
I’ve used it in the past, but uninstalled it.
Trust me when I say, The National Interest has many, many more ads than the typical web site.
I did them so. Doubt it would matter, but I did use the Contact Us page to complain.
The cars were usually bog standard junkers bought pre-Cash-For-Clunkers for a few hundred bucks at most. Don’t recall seeing any significant or pertinent modifications. The batteries wouldn’t necessarily short out but the hydrogen gas in/around them would sometimes ignite impressively (which was part of why we kept doing this). Alternators would be non-functional afterwards, points would pit and/or spotweld.
Interestingly, the later cars with EFI tended to actually do better. Aside from the alternators (which was almost always a guaranteed kill, no matter how old the vehicle was), the additional shielding required by EFI tended to make it more “reboot and go”. The big early heavily shielded Ford EDIS distributorless modules were surprisingly and ridiculously resistant (we had *lots* of crap Tauruses with bad transmissions that we could get for $100 or less).
Look at uBlock - which is lighter on system resources by far.
This was at a subcontractor for Decibel Products of Dallas Texas. They were having to test entire towertop assemblies, including completed antenna assemblies, so the test cell was pretty big for what they were doing. You could fit two large cars in it, but that was about it; the observation that the cell was large enough for cars by one engineer was what started the after-hours experimentation.
Both conducted and radiated was performed at this particular facility. After some unfortunate ‘rapid disassembly’ incidents with larger objects, conducted EMI testing was perfomed in the same cell.
At least with a BOLO I always know where I stand; “FOR THE HONOR OF THE REGIMENT”.
One BOLO with honor is a whole lot better than a thousand democrat office holders without!
Interesting. So you were testing the interaction of a cell phone with an older automobile?
What was your source? A wand? Conducted or radiated? EMP test? Or was it a frequency sweep?
That would suck — key your cell phone and your car shuts down. Never heard that happening before and there was a theory that it might happen at a gas pump but that was proven to be false.
No, we weren’t testing cell phones. The company was testing towertop equipment and site equipment used in the cell network. The automobiles were after hours goofing around with the engineers to see what if any validity the doomsday EMP prophecies had.
The intended use of the cell was to test things like these:
https://thumbs.dreamstime.com/z/cell-tower-top-antennae-877121.jpg
Er, “The intended use of the cell” should be “the intended use of the company’s testing cell/facility”.
Oh so it wasn’t the same frequency and amplitude as a standard cell transmission. Go it. You guys were goofing around...
So they were able to reproduce the EMP spectrum and amplitude with a cell phone tower? Interesting. Sounds doable.
And you placed a car within proximity of the antenna and started it and looked for a reaction such as batteries exploding and the alternators melting. Got it.
i saw a concept drawing once of an M1 with a GAU-8 Avenger cannon mounted on it for urban warfare, BAD ASS!!!
Yes, there was much beer involved.
Have you ever seen a Tesla coil in operation? Something that you can build as a hobby project.
Well, at least product-improved, 5 tankers having been killed in ammunition fires and 2 in NBC filter fires. 26 Abrams crew members died between 1982 and 2002, and that's waaaay too many for mostly peacetime operations, even to the point that the commander of the Armor Center wrote an article about it in 2003.
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