carl seyersdahl wrote:
> Unless I miss my guess , If your equipment is all solid state, you'd be
> "dead in the water" unless , and even then , your equipment was 100%
> "mil-spec" parts.!!
That's not true. It's what you have them in that matters.
> Even today, I don't think our Govt. has the ability , or
> anyone else either, to produce 100% EMP proof devices.
Devices no. Systems for protection, can work reasonably well. But the
rise time of the pulse is fast (fall is slower), so the bandwidth is
large. So its next to impossible to protect a sensivite front end, since
you can't filter it in any way without impacting on the performance of
the system.
If you are paranoid, then store equipment in a metal box when not in
use, which is all the original poster asked about. It will be safe in a
metal box.
Personally, I think its a bit of a waste of time. You would swap a very
very very small risk (EMP damage) for a smal to moderate risk (dropping
it while moving it). Not too sensible in my mind.
G8WRB
> It seems that the "old way" , with "vacuum tubes" (remember those ?) is
> the only way around the problem !!!
> Just another oldtimer's thoughts.!!!
> carl / kz5ca
> ----- Original Message -----
> From: <Dennis12Amplify@aol.com>
> To: <ka1xo@juno.com>; <Amps@contesting.com>
> Sent: Tuesday, August 02, 2005 1:50 AM
> Subject: Re: [Amps] Nuclear Magnetic Pulses
>
>
>
>>In a message dated 8/1/05 6:11:55 P.M. Central Daylight Time,
>
> ka1xo@juno.com
>
>>writes:
>>
>>Mention was made in recent posts about EMP.
>>
>>Other than lightning damage, which can be relatively
>>protected against by disconnection of antennae, telephone
>>lines, a.c. power lines, etc., what are the consequences
>>of an aerial nuclear burst in the ionosphere, and how
>>can we protect out equipment when not in use?
>>
>>Respectfully,
>>
>>Hal Mandel
>>W4HBM
>>
>>
>>
>>A Very Thick Faraday Shield!
>>
>>Regards,
>>
>>Dennis O.
>>_______________________________________________
>>Amps mailing list
>>Amps@contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>
>
>
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>
>
--
David Kirkby,
G8WRB
Please check out http://www.g8wrb.org/
of if you live in Essex http://www.southminster-branch-line.org.uk/
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