🚀 go-pugleaf

  David has provided a good, laymens overview of electronic transient weapons in
   http://www.infowar.com/mil_c4i/mil_c4i8.html-ssi .
Some numbers are provided.  Cited, for example if the Flux Compression Generators which use 10^5 or
10^6 amps to create a magnetic field from megajoules of energy, concentrated in microseconds, and
then compressed by explosive energy.  IOW these numbers even exceed most lightning strikes by orders
of 10 or more.  And lightning power exceeds mobile radios by many tens of power ratios.  IOW to
create destructive EMP, the power and energy levels must well exceed anything existing in nature or
civilian life AND must occur within hundreds of yards.  Notice how much power and energy,
concentrated in one spot is required to possibly damage electronics.

  Furthermore David's artilce admits even then that unhardened equipment still may be difficult to
damage:
>The first is that target types are very diverse in their electromagnetic
>hardness, or ability to resist damage.  ...  various manufacturer's
>implementations of like types of equipment may vary significantly in
>hardness due the idiosyncrasies of specific electrical designs, cabling
>schemes and chassis/shielding designs used.
>The second major problem area in determining lethality is that of coupling
>efficiency, which is a measure of how much power is transferred from
>the field produced by the weapon into the target. Only power coupled
>into the target can cause useful damage.

  This article even suggests why fields from a nearby lightning strike do not typically damage
electronics.  "Second" suggests how poorly electromagentic fields couple their energy into PC traces
and IC leads.  Moreso, it demonstrates how impossible it would be for a mobile radio to create
damage to electronic equpiment.  Compare the energy and power levels required by EMP bombs to damage
even unhardened electronics - to energy of a portable radio.  Mobile radios create noise - which is
well below the voltage levels required to damage electronics.

 David has provided an informative piece on EMP weapons.

David Milne wrote:

> True, but there is a fine line between what is considered a legitimate voltage registering
> a legal logic level, and a voltage on that logic pin that will destroy the input. Have a look
> at some of the datasheets of logic gates. Power supply rails aren't immune to transients either.
> I suspect you are referring to what might be loosly termed "low level emp transients".
> For the other extreme, I suggest having a look at this paper on E-bombs.
>
> http://www.infowar.com/mil_c4i/mil_c4i8.html-ssi
>
> It's also got a rough normalised diagram for the relative dv/dt's of a nuclear EMP transient,
> a lightning stroke, and a Flux Compression Generator.