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Your thoughts on EMP and protecting K3/K2

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Bill Maddock-2

Your thoughts on EMP and protecting K3/K2

With things ramping up internationally and talk
of possibility of either nucleur strike or dirty bombs,
what would be best way of protecting our gear? I know
that the radios are pretty tight for keeping signals
out and I have a very good ground system here. What
else can be done to protect our gear.

Thanks and 73,

Bill N4ZI

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Dave Hachadorian

Re: Your thoughts on EMP and protecting K3/K2

For EMP, same as lightning.

For Dirty Bomb, plastic sheeting and duct tape ;)

Dave Hachadorian, K6LL
Yuma, AZ

----- Original Message -----
From: "Bill Maddock" <[hidden email]>
To: <[hidden email]>
Sent: Saturday, March 14, 2009 6:43 PM
Subject: [Elecraft] Your thoughts on EMP and protecting
K3/K2

>
>
> With things ramping up internationally and talk
> of possibility of either nucleur strike or dirty bombs,
> what would be best way of protecting our gear? I know
> that the radios are pretty tight for keeping signals
> out and I have a very good ground system here. What
> else can be done to protect our gear.
>
> Thanks and 73,
>
> Bill N4ZI
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html

K2QI

Re: Your thoughts on EMP and protecting K3/K2

I think if a nuclear weapon went off anywhere near my QTH, the K3 would
probably be the last thing I'd be worried about.

73,
James KC2UEE

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Dave Hachadorian
Sent: Saturday, March 14, 2009 2:49 PM
To: Elecraft reflector
Subject: Re: [Elecraft] Your thoughts on EMP and protecting K3/K2

For EMP, same as lightning.

For Dirty Bomb, plastic sheeting and duct tape ;)

Dave Hachadorian, K6LL
Yuma, AZ

----- Original Message -----
From: "Bill Maddock" <[hidden email]>
To: <[hidden email]>
Sent: Saturday, March 14, 2009 6:43 PM
Subject: [Elecraft] Your thoughts on EMP and protecting
K3/K2

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--... ...-- -.. . .--- .- -- . ...

Gary Smith

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

Interesting question,

QST some years back had a featured article on this. The gist of it as
I recall was an EMP from a nuclear blast 5 miles above land would
destroy all consumer devices utilizing integrated circuits. Only
highly protected devices as might be used by the military would be
possibly protected. Note the ambiguity here...

The old "all tube" gear would supposedly be un-affected. So our K3s
in the event of such an event would be non-functioning afterward.

Get em while they're hot!

Gary
KA1J

> With things ramping up internationally and talk
> of possibility of either nucleur strike or dirty bombs,
> what would be best way of protecting our gear? I know
> that the radios are pretty tight for keeping signals
> out and I have a very good ground system here. What
> else can be done to protect our gear.
>
> Thanks and 73,
>
> Bill N4ZI
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

w0mu

Re: Your thoughts on EMP and protecting K3/K2

Hmm I must be watching the wrong news stations.

I have heard of Tea Parties starting and Militia's on the rise threat of a
nuclear attack had not made the radar.

I will stop before this gets political though. I would expect that most
electronics will be toast if you are close to the detonation point, but then
again most the people will also be toast.

I heard that Yellowstone is getting more and more active too. I'm not safe
in Denver or at our Montana home that is just over an hour from Yellowstone.
I can't win for losing.

Now if I am a long way from a blast hopefully having your radio disconnected
will keep it safe if needed for emergency comms. Anyone have a big ole lead
safe?

"A slip of the foot you may soon recover, but a slip of the tongue you may
never get over." Ben Franklin
-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Gary Smith
Sent: Saturday, March 14, 2009 1:19 PM
To: [hidden email]
Subject: Re: [Elecraft] Your thoughts on EMP and protecting K3/K2

Interesting question,

QST some years back had a featured article on this. The gist of it as I
recall was an EMP from a nuclear blast 5 miles above land would destroy all
consumer devices utilizing integrated circuits. Only highly protected
devices as might be used by the military would be possibly protected. Note
the ambiguity here...

The old "all tube" gear would supposedly be un-affected. So our K3s in the
event of such an event would be non-functioning afterward.

Get em while they're hot!

Gary
KA1J

> With things ramping up internationally and talk of possibility of
> either nucleur strike or dirty bombs, what would be best way of
> protecting our gear? I know that the radios are pretty tight for
> keeping signals out and I have a very good ground system here. What
> else can be done to protect our gear.
>
> Thanks and 73,
>
> Bill N4ZI
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net Please help support this email
> list: http://www.qsl.net/donate.html
>

n7ws

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

Replace all of the solid state stuff with vacuum tubes.

Some of the ways semiconductors are affected are noted here:

http://www.mse.vt.edu/faculty/hendricks/mse4206/projects97/group02/effects.htm

In some tactical missiles, single events are dealt with with nuclear event detectors (NED) that shut down critical circuits gracefully. One of the bigger worries is voltage regulators which when upset of course quit regulating, which can cause multiple failures.

--- On Sat, 3/14/09, Bill Maddock <[hidden email]> wrote:

> From: Bill Maddock <[hidden email]>
> Subject: [Elecraft] Your thoughts on EMP and protecting K3/K2
> To: [hidden email]
> Date: Saturday, March 14, 2009, 12:43 PM
> With things ramping up internationally and talk
> of possibility of either nucleur strike or dirty bombs,
> what would be best way of protecting our gear? I know
> that the radios are pretty tight for keeping signals
> out and I have a very good ground system here. What
> else can be done to protect our gear.
>
> Thanks and 73,
>
> Bill N4ZI
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list:
> http://www.qsl.net/donate.html

Matt Palmer-4

Re: Your thoughts on EMP and protecting K3/K2

all you need for a NED is a scr, the more tactful approach is to
characterize the die's response to being irradiated and created
irradiated vs normal models and play it all in simulink, all depends
on how much the customer wants to spend for FEMECA

Matt
W8ESE
Former KD8DAO
http://blog.MattIsKichigai.com

On Sat, Mar 14, 2009 at 3:50 PM, Wes Stewart <[hidden email]> wrote:

>
> Replace all of the solid state stuff with vacuum tubes.
>
> Some of the ways semiconductors are affected are noted here:
>
> http://www.mse.vt.edu/faculty/hendricks/mse4206/projects97/group02/effects.htm
>
> In some tactical missiles, single events are dealt with with nuclear event detectors (NED) that shut down critical circuits gracefully. One of the bigger worries is voltage regulators which when upset of course quit regulating, which can cause multiple failures.
>
>
>
> --- On Sat, 3/14/09, Bill Maddock <[hidden email]> wrote:
>
>> From: Bill Maddock <[hidden email]>
>> Subject: [Elecraft] Your thoughts on EMP and protecting K3/K2
>> To: [hidden email]
>> Date: Saturday, March 14, 2009, 12:43 PM
>> With things ramping up internationally and talk
>> of possibility of either nucleur strike or dirty bombs,
>> what would be best way of protecting our gear? I know
>> that the radios are pretty tight for keeping signals
>> out and I have a very good ground system here. What
>> else can be done to protect our gear.
>>
>> Thanks and 73,
>>
>> Bill N4ZI
>>
>>
>>
>> ______________________________________________________________
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
>> Help: http://mailman.qth.net/mmfaq.htm
>> Post: mailto:[hidden email]
>>
>> This list hosted by: http://www.qsl.net
>> Please help support this email list:
>> http://www.qsl.net/donate.html
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
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>

N2TK

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

How about a lead, carbon lined steel box?
Your solid-state devices are going to get fried with an EMP strike. Doesn't
matter if they are powered or not or your rig is grounded or not.

Space and military systems like RAD hard tested devices, when they can get
them. Also, some of the commercial airline manufacturers are getting
involved with RAD hard devices.

Want a shock - get pricing on a JANS RAD hard device. Even without the RAD
spec you will get shocked. JANTX and TXV aren't as bad but still pricey.

73,
N2TK, Tony

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bill Maddock
Sent: Saturday, March 14, 2009 2:43 PM
To: [hidden email]
Subject: [Elecraft] Your thoughts on EMP and protecting K3/K2

With things ramping up internationally and talk
of possibility of either nucleur strike or dirty bombs,
what would be best way of protecting our gear? I know
that the radios are pretty tight for keeping signals
out and I have a very good ground system here. What
else can be done to protect our gear.

Thanks and 73,

Bill N4ZI

______________________________________________________________
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Don Ehrlich

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

EMP is ElectroMAGNETIC Pulse. The only shielding that is effective is a
high permeability enclosure (steel, nickel, etc). Electronics in aluminum
enclosures are as vulnerable as breadboards ... well, almost as vulnerable.
My guess is that there is no effective was for ordinary folks to protect
their stuff. The military uses permeable enclosures, conduit, etc.

Don K7FJ

>
> With things ramping up internationally and talk
> of possibility of either nucleur strike or dirty bombs,
> what would be best way of protecting our gear? I know
> that the radios are pretty tight for keeping signals
> out and I have a very good ground system here. What
> else can be done to protect our gear.
>
> Thanks and 73,
>
> Bill N4ZI
>
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>

Jack Smith-6

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

I would start by reading
http://glasstone.blogspot.com/2006/03/emp-radiation-from-nuclear-space.html.
This is an excellent overview and, more importantly, provides a wealth
of links to more detail.

It does not display properly in Firefox, so use Internet Explorer to
visit the page.

As far as specific protective measures, there are many good references
at the site I mentioned.

One is: http://www.williamson-labs.com/480_emp.htm

You might also wish to review US Army Technical Manual TM 5-690,
available at:
http://www.wbdg.org/ccb/ARMYCOE/COETM/tm_5_690.pdf

Jack K8ZOA

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AC7AC

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

CONTENTS DELETED

The author has deleted this message.

Kevin Rock

Re: Your thoughts on EMP and protecting K3/K2

In reply to this post by Bill Maddock-2

<<http://mae.pennnet.com/display_article/352477/32/ARTCL/none/none/1/Nuclear-proliferation-raises-the-specter-of-EMP-attack/?cmpid=EnlMAEMarch42009>>

This article is a bit chilling. 12 to 18 months without power? But one well placed nuke over the center of the US at the correct height would knock out the power grid and our communications.

Kevin. KD5ONS

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