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Author Topic: EMP from North Korea's nuke over the Pacific, would it damage radios?  (Read 521 times)
WA2ISE
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Posts: 1028




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« on: Yesterday at 01:33:19 PM »

Heard that nuke bombs can produce electromagnitic pulses(?) that can fry the front ends of radios.  I don't know if this is just an urban legend, or if it's a real problem (assuming N Korea actually launches an H bomb and blows it up over the Pacific, as they mentioned thinking of doing...).  Many other problems this would cause would be far more serious, like all that radioactive crap let loose in the air.  Power companies might not handle it well, either.  (I'm talking about places far enough away that are not vaporized by a direct hit).  Cars' electronics might not like it either.  Even if you kept an old 2m HT stashed away in a metal sealed box, you couldn't charge its batteries if the power company and your car are dead...  

I doubt that NK would actually do it,  Huh  



Maybe make sure your tinfoil hats are well grounded.   Grin  
« Last Edit: Yesterday at 01:35:36 PM by WA2ISE » Logged
W1VT
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Posts: 2368




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« Reply #1 on: Yesterday at 03:10:55 PM »

http://www.arrl.org/lightning-protection
There is a 4 part series that discusses the physics involved, as well as mitigation strategies, on the ARRL's Lightning Protection Web Page.
Electromagnetic Pulse and the Radio Amateur - Part 1
QST August 1986, pp. 15-20, 36
Will your station survive the effects of lightning strikes ........
Electromagnetic Pulse and the Radio Amateur - Part 2
QST September 1986, pp. 22-26
...testing EMP/transient-protection devices
Electromagnetic Pulse and the Radio Amateur - Part 3
QST October 1986, pp. 38-41
...protectors are connected to Amateur Radio equipment and retested.
Electromagnetic Pulse and the Radio Amateur - Part 4
QST November 1986, pp. 30-34
What can be done to protect an Amateur radio station from lightning......
Feedback: QST February 1987, p. 43
Feedback: QST April 1987, p. 59
The model number of the Siemans spark gap is B1-A350, not BI-A350.
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KC4ZGP
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Posts: 1300




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« Reply #2 on: Yesterday at 04:51:19 PM »

Rocket Man said he'll detonate an H-bomb over the Pacific ocean.

What is the world waiting for? What will it take now for any country to act?

Here's what I figure, If South Korea and U.S. forces just plowed northwards,

half the North Korean soldiers will not be poised in fire-when-ready position.

Their arms will be straight up...please save us from this ____.

The other half of the North Koran army will holding up the arms of the first half
because they're too weak from starvation to hold up their own arms.

Kraus

« Last Edit: Yesterday at 04:55:58 PM by KC4ZGP » Logged
K0UA
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Posts: 922




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« Reply #3 on: Yesterday at 05:37:07 PM »

Heard that nuke bombs can produce electromagnitic pulses(?) that can fry the front ends of radios.  I don't know if this is just an urban legend, or if it's a real problem (assuming N Korea actually launches an H bomb and blows it up over the Pacific, as they mentioned thinking of doing...).  Many other problems this would cause would be far more serious, like all that radioactive crap let loose in the air.  Power companies might not handle it well, either.  (I'm talking about places far enough away that are not vaporized by a direct hit).  Cars' electronics might not like it either.  Even if you kept an old 2m HT stashed away in a metal sealed box, you couldn't charge its batteries if the power company and your car are dead...  

I doubt that NK would actually do it,  Huh  



Maybe make sure your tinfoil hats are well grounded.   Grin  


I reckon you haven't heard of Starfish Prime?  In 1962?  EMP is real.  And I would't trust NK with a firecracker.
Also nuclear weapons can be "tailored" to produce more EMP.  EMP could be more dangerous than the blast itself and kill far more people over time.  No electricity means no infrastructure.  Back to the 1800's.  How many of us can live back in the 1800's.  Some, but not all.

You can read about Starfish Prime here:
https://en.wikipedia.org/wiki/Starfish_Prime

Starfish Prime caused an electromagnetic pulse (EMP), which was far larger than expected, so much larger that it drove much of the instrumentation off scale, causing great difficulty in getting accurate measurements. The Starfish Prime electromagnetic pulse also made those effects known to the public by causing electrical damage in Hawaii, about 1,445 kilometres (898 mi) away from the detonation point, knocking out about 300 streetlights,[6] setting off numerous burglar alarms and damaging a telephone company microwave link. The EMP damage to the microwave link shut down telephone calls from Kauai to the other Hawaiian islands

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K0UA
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Posts: 922




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« Reply #4 on: Yesterday at 05:49:28 PM »

Oh, by the way, you don't need a nuclear bomb to make an EMP generator either.  Nope, its pretty easy.  But you do need the ability to launch things high up.  Hmm  lets see NK already has that ability. 

https://en.wikipedia.org/wiki/Explosively_pumped_flux_compression_generator
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KB2WIG
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Posts: 334




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« Reply #5 on: Yesterday at 07:42:31 PM »



This guy can't produce a viable nuke, so don't worry about an H bomb.

As far as the "EMP" problem, please consider the inverse square law.

More than likely, with more saber rattling from N.K., Japan will produce their own atomic devise and then tell the Fat mMan, er , the Rocket Man, where to go.

The JA's have reactors, and the expertise to produce their own material.


klc
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K0UA
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Posts: 922




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« Reply #6 on: Today at 07:03:21 AM »



This guy can't produce a viable nuke, so don't worry about an H bomb.

As far as the "EMP" problem, please consider the inverse square law.

More than likely, with more saber rattling from N.K., Japan will produce their own atomic devise and then tell the Fat mMan, er , the Rocket Man, where to go.

The JA's have reactors, and the expertise to produce their own material.


klc

Why would you say he can't produce a viable nuke when he has already produced several viable nukes, and possibly already produced an H bomb?  We are not sure on the last one, but most believe the capability to produce an H bomb if not already here is very near.  Don't underestimate the fat kid's and his country's ability to wage war. And while I agree that Japan has the expertise and the means to produce nukes, do they have the will?  The gunfight doesn't' always go the the fastest or even the most accurate.  It often goes to the most willing.  Nuclear warfare may come down to "the most willing".  I don't know if the fat kid is willing or not for sure, but do you want to bet the farm on it? 
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ND6M
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Posts: 483




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« Reply #7 on: Today at 11:45:13 AM »



This guy can't produce a viable nuke, so don't worry about an H bomb...

Define "nuke"
He already HAS detonated multiple Fission bombs.
I doubt that he has the technology to detonate a Fusion bomb,.......... yet.

I lived in Japan for many years, and I'm of the opinion that they have no desire to become a nuclear bomb capable nation.
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K0UA
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Posts: 922




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« Reply #8 on: Today at 01:17:55 PM »



This guy can't produce a viable nuke, so don't worry about an H bomb...

Define "nuke"
He already HAS detonated multiple Fission bombs.
I doubt that he has the technology to detonate a Fusion bomb,.......... yet.

I lived in Japan for many years, and I'm of the opinion that they have no desire to become a nuclear bomb capable nation.

Well, I don't doubt for a moment he either already has detonated an H bomb or will soon. We have constantly since the beginning underestimated the capabilities and the will of NK.  I agree with you that Japan does not have the will to make atomic weapons, even if they have the capability to easily do so.  I also believe while the South Korean military is extremely capable, they are governed now by a pacifist government.  Not a good unified front in standing down the aggressive little fat boy.
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