High Altitude Nuclear Electromagnetic Pulse (EMP) (
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- čas přidán 1. 08. 2023
- Let's explore high-altitude nuclear electromagnetic pulse. A long-form video going through as much reliable material as I could find. You may have more information than I do. If so, leave a comment with the spot in the video you want to discuss, what you want to see changed or added, and the source where you got your information. Thanks!
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One of my Army pals was a radio operator with the 101st Airborne. His team was sent out to Palmyra with a BC-610 TTY/CW rig. They sent reports for the EMP tests. That was the test that blew out the street lights in Honolulu. And yes, if we get a Carrington Event from a huge solar flare it will act like a super bad power surge or lighting storm. So all of those precautions help harden you for EMP. But I think power surges and Solar storms are the real threat. Grounding, BONDING. We had a seminar years ago at the oil company and the presenter explained that you want to be the bird on the power line. There will be a ground power rise, the earth under your site will change charge. So the trick is to be bonded together such that you don't have arcing or power moving from one point to the other. Great topic, thanks for covering it. One of my friends was at Johnston for Dominic I with the Navy. it is a miracle he is still alive, very bad radiation sickness. 73 Bob WA8MOA
I was part of a working group that was tasked with continuation of communication at a relief agency. The EMP was one of the scenarios. This is a scary possibility. There's a government group that works on this issue continuously. Most people wouldn't survive the first year after such an event. Water, sewer, electric, banking, medical care, etc etc would almost cease to exist over a wide area.
The hard part is going to be staying alive when the hordes of starving city folk come out to "live off the land." Everyone in the big cities doesn't have anything needed to stay put. They will eat cold canned food and drink their bottled water for three days. Then start walking. Everything within 100 miles of these big human cages will be stripped clean by millions of zombies. Starving and sick from drinking from puddles. Throw in radiation poisoning, and it will be really creepy out here in the woods.
If we someday get an ambient temperature and pressure superconductor, can we shield our electronics and collect the energy in the EMP as a power source? ie, detonate nukes in orbit to power society?
@mike-ms1jm It all depends on how strong the pulse is. See, it will create an electrical current. If it is a higher voltage than the switches are rated for, then they will melt. Almost all of the controls are 5 volts. The computer is 5 volts. The most strong wiring insulation is 600 volts. We dont have much in the way of practical application, but a solar cme will melt the power lines that are made to handle far more. I picture cars, camp trailors, boats, homes, and anything with a few feet of wire will become energized and then discharge to ground. It will most likely arc a few feet in open air. The resistance to that voltage will get it hot, and anything combustible will catch fire. If it is as strong as in Canada, everything metal like fences will get hot enough to start fires.
The idea of the cage is that it will catch that voltage and conduct it to the ground. The most powerful burst will melt copper and heat steel to red hot. A weak pulse may just create a volt for a millisecond. Sorry that I can't answer things better. But I do know that 3 feet of dirt will stop almost everything. It travels in a straight line, so have the entrance make a turn.
What about a steel watchstrap, given that the emp induces currents in conductive objects? Would it be fair to suspect that you'd be burned?
Come to think of it, how about compasses using permanent magnets?
@@tricky778yeah.
So radiation and irradiated materials can come back to the earth?
No way.
Thanks Dave what a great explanation of an EMP event. Your conclusions are backed up by reliable science. This is the kind of information that the public at large needs to hear not just the Ham community. 73 Jeff KE0KRO.
Bullshit lol
Dave, for whatever its worth, the company EMP SHIELD has multiple significant contracts with DoD and Various military branches. Having had a TS (as many of your members) and a negotiator of defense contracts, we often had to disclose test results details and give many disclosures. I have faith in the EMP SHIELD company. Although in the 90’s, we did much electro-magnetic work.
Ken, would like to see your documentation that this company has standing contracts with the DoD in the area of EMP protection. As many other posters here have commented, this device at best is a basic surge protector and certainly NOT worth the price they're charging. A Reddit user took one apart to find nothing more than a circuit board and LED. Buyer beware . . . @@kenpeters9807
Best 43 minutes I have watched in a long time!!! Thanks Dave!!
I second that
Thanks Dave. As someone who spent 4 years in the EMP business plus 8 in satellites, rockets and ICBMs I give you an A on this presentation. When I was missile guidance officer for Program 437 at Johnston Atoll, I was told our radar and tracking equipment and Collins radios never had any problem in the high altitude tests. Dale K5AJZ
Were they vacuum tube style electronics? They seem to have a higher survival rate.
You obviously haven't read any military manuals on EMP shielding
If space is a vacuum then there has to be a physical barrier to separate our positive air pressure… so how does that work ?
@@jonnybloggs6790It's called gravity. The atmosphere doesn't "end", it just thins out to almost nothing as one rises in altitude.
@@PatrickKQ4HBDtry again as they say “ space is a vacuum “
The second photo called "Orange" is likely the occurrence of plasma. That much energy being released even in the environment of what is pretty much space, will vaporize not only the bomb material itself causing plasma but any gases that happened to be in the immediate area would be energized to the point of plasma giving the bright coloration.
Dave, you are now my favorite channel. I love that you, unlike many, pronounce “nuclear” correctly😊
My thoughts exactly. Glad I'm not the only one who cannot stand that particular mispronounciation!
Terrific compilation of what happened on these events. First time I have seen all of this in one presentation.
From a strategic view: A peer-peer EMP exchange would involve more than one weapon being delivered simultaneously to guarantee coverage. This will likely cause overlaps and repetitive pulses within the affected strike arc. Preps for this kind of theatre-wide attack are far more complicated than just a 30ms spike.
A single EMP device employed at the tactical level and it's singular linear wave is very aptly described by you. Cheers.
Russians will shoot over 1000 icbm's each with multiple warheads, they will make a nuke wall to stop all nato incoming nukes and then still have enough nukes outgoing to glass all nato countries, the west will cease to exist for all eternity.
Excellent talk! Explained so most everyone can understand it.
I had the same concerns with EMP Shield. It's not like they'll be around if there's a Nuclear EMP. Certainly, many people might not be.
Very well done talk. Much appreciated.
Excellent content. No marketing just honest , clear, and concise. I have inquired about some of the marketed products for academic purposes and I ran into the same brick wall. Thank you for putting this together.
Excellent technical discussion, sir. Thank you for taking the time to share your expertise.
Fascinating stuff!! Thanks so much for laying this out. Five stars!!
E1 protectors usually use a mixture of argon and krypton-85 in a gas discharge tube. The krypton-85 is radioactive and emits beta particles (basically free electrons). The beta particles keep the argon continuously partially ionized, and speeds up the reaction time of the device by several orders of magnitude. This results in a reaction time in the nanosecond range. When properly built, these devices have extremely low capacitance and low inductance, and can be used at frequencies of 1 GHz or higher. These are made for the U.S. military, but are readily available to radio amateurs; but not from any company mentioned in this video. These beta-emitting and fast-acting gas discharge tubes are usually built into RF connectors, especially N-connectors.
Solid-state TVS diodes have sub-nanosecond response times, and are quite inexpensive. However solid-state TVS diodes have high capacitance and, therefore cannot be used in radio-frequency circuits. TVS diodes are very effective at clamping E1 pulses in non-RF lines.
Plenty of very low capacitance TVS diodes out there that the industry uses well into the microwave range.
What an excellent video, masterfully delivered!
lol ""freedom sale, just trust us how this device works we cant tell you". So much info here. thanks for dissecting Dave. Great vid. very informative
Thank you thank you, Dave. There is nothing like researched perspective to settle things. Albert
Dave,
Very thought out explanation as always.
Thank You and 73,
JR
Hey Dave! Great episode as usual. I originially found your channel a couple of months ago when I started playing with SDRs and wanted to make a better antenna. You ended up inspiring me to try for my (Canadian) Ham license. I passed with Honours, which is about the same as the US General I think. Anyway, Now I'm VA7ODR! Thank you! Maybe I'll see you on the air. 73
This may be the best video you've ever done. Thanks for bringing a bit of reality and practicality to a topic that has at times run amuck over the last 60 years. Next you have to work on how an X Class solar flare is not going to end humanity on earth.
Years ago, the BMJ produced a book talking about the effects of single nuclear weapon over London. Based on the available information at the time and using an average sized Soviet nuclear weapon, the immediate deaths would be relatively minor. However the long term effects (Damage to infrastructure, communications, wounded people, contamination of food, power generation etc.) would lead to mass starvation and millions of deaths.
That was before we became even more reliant on electronics and interconnected.
A wonderful video. Some details I have not heard before. I still stand on the line and say "we just don't know", and hopefully never will.
Excellent video! Purely anecdotal, but I have a good bit of experience designing test systems to provide pico or nanosecond long discharges and can attest to just how destructive even pico-coulomb sized / nanosecond long discharges can be to anything electronic.
While that 0.198mWs/m2 looks like a small number, it is the 1-second average of a very very large number.
Wires, resistors, coils and capacitors may not notice, but 40kv/m can put a very large potential across a very small circuit board. You put 4KV across the average a 100mm circuit board and at least one of the
Great presentation. Thank you
I remember working for GC Marconi avionics in the mid 80s on their military radio equipment, and we have special Zener diodes between the 5 V power rail and ground. The special Zener diodes were designed to short the power down to ground when they detected gamma Ray flux. We also had special EMP filters that could stand the one kilovolts, one nano second rise time, that your diagram showed. We had special testing equipment that was designed to be able to induce EMP pulses.
Most modern electronics now include those and other more improved devices that act similar. It is done more for ESD type of consideration, but ESD condition is very similar to an EMP.
Incredibly interesting! Thanks, Dave :)
Great video Dave - very informative & enjoyable but hopefully not needed!! I saw a TV programme some years ago (UK) where they tried to emulate an EMP event. One of the first failures was corruption of flash memory, especially the ROM BIOS. This result is probably not surprising, but just think how much electronics has flash storage of some description for which updates are not possible.
Great topic, Dave.
Thanks a whole lot for that sir, it was very interesting
Thanks Dave. Your best video yet.
The EMP Shield is a scam. Somebody on Reddit tore one down and it was literally a PCB with an LED!
What’s a pcb?
@@squidly6179Printed Circuit Board
Printed circuit board
He’s basically saying if you buy that, you’ve got yourself an expensive paper weight
I’m going to look for that video next
Thanks for confirming my suspicions. The EMP Shield looked like a whole house surge spressor. I have one of those (surge suppressor) on my main breaker panel. This is good for lightning strikes, but not EMPs. The Shield, if as you saw on Reddit, is a scam and the promotors should be thrown in jail.
The only EMP shield is a fully enclosed proper faraday cage
Fascinating video thanks, Dave.
Very good and very interesting. Thank you Dave..
A little history note. During war time or out in the field, power was supplied to the radios by someone furiously turning a handle on a generator. No battery required.
My advice, when not in use, disconnect everything and seal the Faraday cage. Get or make a crank generator. I'm sure there are folks out there with just such equipment.
If you do survive a nuclear blast, you will need to do everything the old fashioned way for years. Do you know how to plant, harvest and store crops? Do you have REAL seeds that are fertile to make new seeds? Those are not easy to get. Do you know how to raise and care for livestock, plus the necessary tack for all that? Plus medical care without years of medicines? Do you have a wood or other fuel stove to heat and cook on? Can you cook in a fire pit? The list is endless, so endless that you will need a group of people with these skills.
The politics right now are scary indeed. Let's hope for the best. I bet we actually do get rid of nukes in the next few decades.
Thanks for the great video. I learned a lot!
Read about WEF / UN and their plans for the world where "YOU will own nothing and be happy" in their feudalistic "stake holder capitalism" paradise for the 0,1% most rich and powerful. It is all explained in WEF founder Klaus Schwab book called "covid19 the great reset". I find that even more scary then nukes because they have already implemented lot of these things preparing for taking the power in the entire world and enslaving us...
Dave, appreciate you sorting through all this gobbledygook to characterize exactly what we need to be concerned with.
I think the LPF idea is pretty good but wonder about some of the other entry-points but then again if they are power, then they most likely have reactive components.
Any of the other entry-points could probably looked a,t as to how much of an antenna they exhibit and are probably not of enough energy coupling to worry about.
My go-to idea is that if you are 'that' concerned, then keep you other spare/ancillary equipment in some form of Faraday-cage--and sleep well... 73
Really consistent wiew on EMP effect and how to deal with. 73 from Italy Old Man.
Wow! I would call this a all-time one-of-the-best by Dave. Well explained and very enjoyable. You are the nuclear Elmer, hihi. Thanks! On a unrelated side note: Dave Mitnick N6NHG, infamous hacker is SK, dead at age 59.
Well I won't be able to sleep tonight. No way would I buy or even use if free that EMP shield. Just by looking at it a Ham should know better. Thanks for letting us know about the scam.
The product is pure garbage. The unit for whole home main panel may have some use, but no more effective than a Siemens or Leviton unit, but a twice the price! I've been banned from several channel's comment sections for speaking out.
Thank you sharing your research.
I've studied low altitude non nuclear electro magnetic pulse and this will be interesting!
36:20 Very interesting that after damaging a lot of their own infrastructure, both sides decided to sign a treaty and not muck around with these any more.
Great job Dave. You can never be too rich, too healthy, or have too much lightning protection. 73 de Bob WA8MOA
I beg to differ. We’ve been dealing with the consequences of people who are too rich for about as long as there have been rich ppl. Informally, we’ve known excessive wealth is correlated with a whole host of undesirable traits for a long time. Only recently, however, has it become possible to collect/ process data on millions of ppl w/ backgrounds spanning the gamut of statuses, societies, & cultures. This has allowed us to formally consider such observations and, should they hold up to scrutiny, to begin to find answers that might help us say why.
With all this data we can isolate the dependent/ independent variables from confounding factors by measuring the effect across a range of disparate environs. If the rich tend to be assholes in Madagascar and the rich in Chicago tend to be assholes, i can more confidently attribute the size of holes in their asses to being rich than had i looked at holes in asses located only in Chicago and Kansas City, Missouri.
And you know what i found in every assholes i came across? Loads...of money. Its a scientific fact.
Great video. Thanks.
Thank you, Dave, for taking the time to make this video and explain the issue so thoroughly without any hype. However, I have one question that I don't recall being addressed in the video if anyone can provide an answer: What would the risk be for, say, a mobile or HT radio that is located indoors, not turned on and most likely not attached to an antenna vs. more permanent "shack" equipment that may be turned on but at any rate is plugged in to the electrical grid as well as to an outdoor antenna? Do we need to be as concerned about such small, portable radios as with shack equipment?
OMG! Thank you Dave!!!
You did a great job with the material you have. I worked at NASA and on RADHARD with various companies (Intel, S3, AD). The devices they detonated in space were larger than almost any device in use today. EMP is a serious problem for very long lines and connected equipment. At least 4 very large EMP's were generated. Not a single Ham Radio was damaged to my knowledge. With a properly grounded and protected antenna system you are not going to lose anything but a fuse. If you get an alert, ground your antenna and switch off the breaker to your gear. 73's, Alex W5YB
26:09 You are mistaken about IC's amigo: it's standard to have 20 kv protection on IC leads for static ( since about 1985). My source , 30 years in IC design work and it's in the data sheets. EMP is a issue for the Utilities and wire communications industries.
Dad worked on this very thing for years. His main concern was guidance and a minor of radar. He was very serious about not violating his security clearance. He never said any details but to answer the question of what survives the best. His answer was shielding over shielding with grounding and circuit breakers so that it doesnt travel back up the ground. And it still won't work if you're close.
Put sensitive electronics you want to be sure not to be destroyed in Faradays cage...
@a64738 So a metal box that is grounded should stop a little. But if you're in line of sight of any nuke it will cook it. Dad said that it takes multiple layers of shielding. Each one individually grounded with shielded wire. Circuit breakers in the ground wire where it is attached to the shielding. But if you're within a hundred miles it will need to be at least 3 feet underground. Plain soil is almost as good as pure lead.
@@Michael-rg7mxcircuit breakers are even slower than lightning arrestors! E1 is where the problem is!
@@WW5RM Without starting a 2 hour discussion, it is almost impossible to protect from every level of disruption.
@@Michael-rg7mxRight I'm not saying that it can be. All I'm saying is a circuit breaker would be pointless. The most energy coming from ground wires would be during E1 and they are to slow to deal with it.
Never seen this channel, but this was a fascinating video thanks!
That emp shield is basically rocking horse poop in a box.
And ladies and gentlemen, the Least Valuable Comment Award goes to....
thanks Dave! Very interesting! 73's
Remember in the 1960's most equipment was tube type equipment
Not ESD Mico computer controlled
Exactly! Although I have tube gear and recently recapped my homebrew transmitter and completing a recap of my Johnson Viking Adventurer transmitter I’m not so sure it wouldn’t destroy the grids in the tubes or the electrolytic capacitors.
@@radiotec76 russian war fighting equipment,ships,jets,etc can change to tubes for navigation,basic operating system at a flip of a switch--usa jet fighter have manual star base navs and training to use but i think their operating systems might get fried
@@radiotec76Vacuum tubes are remarkably resilient to transient overvoltage and overcurrent and basically ignore gamma rays which will almost certainly erase flash memory and destroy operating MOSFETS.
@@thomasmaughan4798 thanks for the tube info.
I read an alternate history novel by Turtledove where Earth was invaded by reptile aliens during WW2. First they detonate nukes in space above the major cities to knock out solid state circuitry which didn’t exist in the early 1940s and people look at the flashes and said “ooohh” but the valve circuitry was not affected.
Probably, in reality, an EMP in the 1940s would still trash powerlines and radio communications. People wouldn’t know what caused the flash.
Dave, antennas not in use, I put a neon bulb in parallel to drain any static. I wonder what would happen with an EMP?
My long wire is 432, long, on a windy day I can see the neon bulb flash from time to time..
Outlawing of incandescent lights was a bad move.
LED and CFE bulbs won’t survive an EMP, even if they are disconnected.
The feed wires would just act as an antenna.
I’m still looking for an old tube style radio.
At least I know THAT would work, especially if all the tubes were pulled out to save them while being stored.
I have a collection of old battery and tube radios. Plus the more modern Hallicrafters, and Hammarlunds. My wife says "you are a dinosaur"
Go for Crystal capacitor...might not have DAB, but that would widely be out of order.
There is a you tube video of the mock up they made of a B-52 and generated EMP like voltages on it. Very interesting. The early tests were a disaster. It took much work to harden the systems on the aircraft. WA8MOA
Great work.. plasma physics for the layperson..
I found this to be a fascinating explanation, I'm not sure, as I'm no expert if you got all the information correct? But I'll take your "trust me card" on your research and delivery. Which leads to the FACT at 39:50 "If there is a HAEMP event, we have much bigger problems!"
Dave, thanks for the information. I live on the Texas Gulf Coast in Galveston County. Lightning is a big issue down here and I've been using EMP Shield for a couple of years. I have their "whole house" protection in my main circuit panel as well as the antenna protection on my IC-9700. I cannot attest to the EMP protection, but I can say that the lightning protection is excellent as well as EMP Shield's Customer Service. About a year ago, I took a direct lightning hit to my tri-band antenna connected to my IC-9700. The 11 foot antenna was shortened to 2 feet. The rest was scattered in a thousand pieces in a 100 foot radius. Both EMP units worked as advertised and self destructed protecting everything behind it. Although I lost some consumer electronics due to "coupling", I did not loose any ham gear including the IC-9700. EMP Shield promptly sent me new units and the old units were returned to them for research. They were willing to file a claim on the electronics that were lost from the strike, however EVERYTHING that was lost were wired security cameras, speakers, and garage door controllers. In my judgement, EMP Shield could not have protected the coupling that took these electronics out. I hear you on the "Trust Me" card, but I do trust them. Check out their CZcams videos on their testing procedure. It's pretty interesting. Take Care. Bobby-KC5YMC
Well, there's one positive data point.
Check with KLW News.
K Lee Wheelbarger did EMP testing for the Army.
One day the electric company threatened to disconnect the Army base in NJ he pulled so much power from the utility! DS
It'a important to understand that the areas of high intensity intersect the ground in crescent shapes, it's not a uniform blanketing of pulse amplitude.
No gas stations,main grid down, no internet,no satellites. I got a box of matches,a bike,and a deck of cards lmao but live extremely close to underground spring so got that goin for me 😆 books too.
Don't forget a shovel and TP....
Awesome information! I read "The Effects of Niuclear Weapons" (the book with the nuclear blast effect calculator in the back) at a young and impressionable age...wonder if they still test airframes under huge spark arrays like they did back in the 60s? Cheers!
Probably at WSMR, Check their brochures to their defense partners
If someone has a true EMP concern then they should just keep a set of disconected backup equipment in shielded basement storage, and only connect it after an event has damaged their daily driver equipment.
E1 can be delt with by transorbs in equipment. From memory response time as fast as 2 nsec. These have been available for the last 20-30 years.
Cost cents, bet that is all thats in there.
I would worry more about a repeat of the Carrington event than a HEMP.
Except an EMP would portend the beginning of a full scale nuclear war, which would make the Carrington look like a sparkler at a fireworks show.
@@ChatGPT1111 quite, but a nuclear HEMP would probably be the first shot in a strategic nuclear war.a repeat of the Carrington event would be a stand alone event.
@@ChatGPT1111 Would a Carrington type event affect the whole world today?
What if the Carrington Event happened today? Earth has yet to experience a massive solar event since the Solar Storm of 1859. If something similar were to happen today, all the technological systems we depend on would be in complete disorder.
@@mackellyman5642 at most it would effect 50% if the earth's surface. A single HEMP would effect less than half, depending on how HIGH it was. .
The currently weakening magnetosphere may have a bearing on the impact of such a high intensity CME
I was stationed on Johnston Atoll from ‘94-‘95.
having wide frequency range mostly in VHF freq, may be something like Cavity filter might work. narrow , it has some delay. narrow filter usually make the pulse longer like receiving narrow pulse CW with narrow CW filter cause it to ring. at least narrow cavity filter only going to receive very small portion of very wide spectrum. and most of transceiver when they are switched off, they usually connect antenna to transmitter side. which can handle more power and voltage . perhaps design the receiver with dual front end, if one die switch it over to second front end. some diode can conduct within nS even within first cycle at 1GHz , diode protection are often used in receiver design, the diode just might have to be high speed type. AG6JU
Hi Dave, KC5ENC, Tim. I worked in the missile field at Grand Forks, from 86-88. Everything that wasn’t vacuum tube had to be RF shielded and grounded. We took it very serious when we were doing maintenance. My equipment had very fine metal braid anywhere that wasn’t sealed by metal.. So if you had to have an access panel, which occurs all equipment has there was a metal braiding around each one of those access panels. I don’t remember what they did on the antenna systems. The HF radio we had was World War II, tube vintage.
You can make a Feriday cage from an all metal garbage can, and pile it with the electronic gear that will fit. Seal it tight and pray when you open it and all works there is at least one other person who did the same. A good Baufang and plenty of batterys is a great start.
Sheliding needs to be a complete seal for good protection from EM pulse from nuke.
DOE no longer manages the US nuclear weapons stockpile. It USED TO but they were moved to the DOD decades ago because rapid response was found to be impossible because of the inter agency communications lag.
The whole idea of a patent is that you do not have to keep the details a secret--In fact, you have to make them public. This guy does not know the difference between a patent and a trade secret.
From: USPTO::
Simply marking a product with the phrase “Patent Pending” is generally insufficient to qualify as constructive notice and the only effect is to hype up a product. In the U.S., proper marking requires a manufacturer to mark the patented product with the word “Patent” or abbreviation “Pat.” followed by a listing of the applicable patent numbers. The marking should not be concealed, and it should be easy to read. If the actual marking is subject to wear, placement of the marking may be adjusted to accommodate for the situation. Further, all the patented products must be marked, not just a select few.
the pending carrington 2.0 event, we should have a few hours warning. what do we do unplug everything and hope for the best?
Back when I was active in the EMC field we used MIL-STD-461 and RTCA-160 for design and testing of EMP effects. Normally, we’d dump huge storage arrays into the UUT’s. Different energy levels would be used depending upon the unit’s exposure to an EMI environment. The HEMP waveform was an 8X20 microsecond dampened sinusoidal wave. LEMP was a 10X1000 microsecond. EMP weapons were a different issue entirely.
RTCA-DO-160 I didn’t notice “DO” was omitted.
Bi-polar zener diodes or TVS used at I/O interfaces gas discharge tubes at power and antenna interfaces.
Schottkey TVS. Reacts in picoseconds. 12kA TVS protection, 60 kA MOV protection, 50 kA GDT should do it.
What about the HPM E-Bomb warhead?
Optimistically, I can't envisage any scenario in which a HEMP would be used in isolation, if only for the not trivial risk of shooting self in foot syndrome described by Dave. A HEMP or HEMPS would simply herald a wider nuclear exchange with kinetic weapons. Even a single HEMP would be interpreted by the target state as an act of war (as the damage from the EMP alone would be devastating) and would thus invite an immediate and massive retaliatory strike - whoever launches a HEMP would be fully aware of that.
Will a HEMP or multiple HEMPS ever be used? Possibly, but only as the integral prelude to a wider attack. So as Dave wisely says, in the event of a HEMP we will definitely have other things to worry about. Don't forget also that ALL nuclear explosions comprise a very significant element of EMP so in a nuclear exchange there will be EMPs all over the place at varying times, of varying strengths, presumably most of them within a short window. How to know when it's safe to get your gear out of the Faraday enclosure and connect it up? There's no way to know for sure, we can't predict how a war will pan out or how many phases attacks might have, so once it begins, EMP precautions will be ongoing - Continue to keep back ups protected. With care one can build adaptations to protect live operating sets from EMP - if the mil can do it then a competent ham can. Lots of screening and filters, micro mesh windows for displays, remote controls, internal batteries - there are ways to minimise exposure.
The more pressing concerns of immediate survival from heat and blast and ionising radiation doesn't mean we shouldn't think about and plan for EMP. Once the dust settles we hams (and by implication, the community) will still need functioning radios, antennas, micro power generation systems, instrumentation, spare parts etc. More so than before. EMP protection is a multi-faceted systematic challenge. Worst case scenario 50% of us might not survive a global exchange - but that's plenty good enough odds to make the effort worthwhile.
The good news is a surprise attack is unlikely, even more unlikely than in Cold War 1, as it would be another shooting themselves in foot scenario. Before an enemy can attack they must make extensive preparations to receive an attack. With modern surveillance any change in posture would be very obvious so there would be plenty of warning to brush up on the technicalities and lots of helpful advice issued by government agencies (yes, that's sarcasm). So excepting some random rogue act, you can all sleep soundly knowing you'll have at the very least days to get organised. During a transition to war stage, if an actual alert gets broadcast, and you've rushed round pulling plugs out of everything, the next signal might well be the lights going out - that'll be the HEMPs...
The only thing in terms of a Patent on the EMP Shield website is the graphics of the product which has "Patent Pending"...
E1 isn’t nasty because of total energy. It’s nasty because of the peak voltage imposed on micron scale semiconductors, and the short length of the needed antenna. Your mouse cable is plenty long, as is any 6” wire sticking out of a Faraday cage. and your laptop’s not in a faraday cage.
My spare laptop, solar controller and a few other things are in Faraday cages!
@@wallychambe1587 You don't realy need solar controllers but the inverter is very needed . Anyway i see post apoc world reverting to 12v DC for a while :)
@@ketelin4285 VW's...
The emp proof radio gizmo guys claim to be DHS listed. Can anyone find them on any such list? Or is that just a list of "products advertised to..." without any certification and testing?
And patents can be searched. Normally a device is marked "patent pending" until it has been patented, and required to show the patent number after it has been approved.
Good to know you won't see or hear the rest of the 50X fry up.
Modern PC motherboards claim EMP protection but to what level I do not know. Great video, thanks.
Yeah, that's just bullshit. One can keep electronics alive with Faraday cages, but handling the current buildup on power lines requires some rather create use of ferrites and pass-through capacitors. If USB mice etc. are dangling from the computer it's basically pointless. It's also unnecessary. Just keep a spare phone or tablet in a shielded box and you will be live blogging your starvation during the nuclear winter on the non-existing internet in no time. ;-)
Curious term "fused" used for the street lights. I see you were wondering on that one yourself. Nice video. Thanks for sharing.
I believe they meant that the fuse was overloaded and blew
They were likely mercury arc lights, maybe sodium arc, either way it is likely the electrodes were melted and flowed together "fused"
Is that like the distance like it was at Bikini Atoll...??
What the hell happened to the failed ones, and are they still up there?
In practice it's fairly simple: don't dangle antennas from your electronic devices. Sensitive electronics like flash drives can be protected by simple Faraday cages. The cheapest I have found in the hardware store is a zinc plated steel garbage can. Copper tape around the seams is your friend. If you are a perfectionist, then you can solder them easily, but I am not sure it's all that necessary. SSD in cookie jar, cookie jar in garbage can and the only way it will be destroyed is if you are in the actual blast radius of the bomb. Want to have internet after the apocalypse? Keep a cheap phone or tablet next to your backup drives. Oh... wait... there is no internet after the apocalypse... we will all be starving to death in the nuclear winter that will follow. :-)
Back in the 50s there was a ham operator in town w huge ant when he transmitted anything in town with a speaker or the phone would hear his voice and lights blinked w. he keyed 🙄
You could shield your stuff with lead or lots and lots of water! Keep yourself a unpowered spare (remove any internal batteries) of critical equipment. Don’t look directly at any nuclear bursts if you value your vision!
Thanks a lot Dave. However, the bigger question is outside of ham radio. The vulnerability of microprocessors, ROM chips and electricity grid to EMP is an open question. Even if your ham radio survives, it will not mean much if you have no electricity and all your electronics are dead. With all the microelectronics, your car, your solar controller, your computer, cell phone etc. could all be unusable. These old tests, done before most people were born, may not reflect the state of the art in weaponry which could be optimized for EMP.
Emp is like a fine bourbon it up and bit them in the keyster !
Always wondered about japan and blackout
In other words, KOAG!WOW! They were a bunch of dummies in the 60's with that stuff!!😲😲
The best defence is to fight war hawks!
Great info . Maybe next topic will be what will HAEMO do to radio comms local or DX and for how long if there is anyone to talk to. Do Faraday cages protect equipment?
Faraday cages are supposed to protect equipment but it is kind of hard to use it in Faraday cages! I have my spare stuff in Faraday cages. I heard where some guy turned his whole house into a Faraday cage, Wow!
@@wallychambe1587A Faraday cage survivial and panic room would require you have duplicate equipment inside the cage, to resume operations after the pulse. This may need to include, transmitters, antenna and transmission line. I guess you should include the computers (generators, and other infrastructure items that you may required.
I guess, you could have the radio front end outside the cage and then tunnel the data and communications over optical fibre thought the cage, the converting back for ease of use for the users.
@@gorillaau They make metal cloth for car & generator covers, I can put laptops, radios, chargers & PSU"s that I don't use all the time in Faraday cans. You are right, you need duplicates of what you use!😲😲
@wallychambe1587 All RF suppression systems should be tested. I heard a guy to built an RF cage and was packing up their tools. One asked, "Where's the radio?" It was inside the cage, and still clearly receiving the radio program.
A Faraday cage for low frequency and DC such as from lightning needs only to be a grounded mesh. But the mesh spacing admits frequences whose wavelength is smaller than the mesh.
But there's another problem; the cage itself will emit on the inside if there's a high enough current induced on the surface over short enough time span. That's why another comment says shield within shield.
Any data on electric cars?
Thanks
@9:45 Those weren't side effects of Starfish Prime. How much damage it caused was exactly what they wanted to find out.
Any thoughts on Hawaii ?
Don't you keep any backup radio gear in a Faraday cage? This is the main reason I got into ham radio, was to have a communications capability if we ever got hit with an EMP.
problem is like dave said, if one goes off we are at war. so you pull your unit out of the cage after a burst to use it to find out whats going on and another bomb goes off and cooks the radio just the same. you would never know when its safe to pull it from the cage during a war so the radio is useless all the same
My only question with the presented material is the use of power to determine damage. Does it take any power to blow the gate of a mosfet? I always figured the gate was intact until the breakdown voltage punched a hole in it. The power equation in my mind does make a great argument that tubes are emp proof.
Smaller electronics. Smaller tolerance.
Emp pulse? Or pressure. Think tesla. Scalar waves. Earth static ball... neutral... now gets a blow. Compressed outward decompression building in. Gives a lot of potential.
Don't know what you said @ 5:35. Same @ 41:23. Otherwise, Good presentation! Mike, KG0P