[R-390] EMP

[mikea]

On Fri, Sep 25, 2009 at 09:41:12AM -0700, Steve Toth wrote:
> So, theorectically, what would be involved in "hardening" a hamshack?? (understanding that the power grid, etc., would be taken out)
> 
> Not being an engineer and having no background in this area, my guess
> would be some sort of shielding on all sides of the room, roof and
> floor (what would be considered adequate?); thorough grounding of the
> shielding and associated equipment (would the lightning strike damage
> prevention techniques discussed a little while ago be applicable?);
> and filtering of all wiring coming into and out of the room for
> excessive voltage pulses???  Or would even those techniques have their
> own issues?  Just curious.

You might get through it with fully-shielded underground vault, 
containing:

A complete set of spare electronics -- as in a complete set of spare
transceivers/receivers/transmitters.

A complete set of spare cables, connectors, etc., as well, as the
voltages induced by all those Compton-effect e- will be big enough to
punch through insulation and do other nasties.

Filtering just isn't going to do any good against voltage spikes with
those magnitudes and such fast risetimes. 

No, I'm not kidding. 

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin