On 11/18/2015 1:55 AM, AndyW wrote:
On 17/11/2015 18:30, gareth wrote:
Those who were self-taught to the exclusion of sideband and sidetone
are no doubt unaware that in the event of a nuclear detonation that an
EMP
will melt the RF amps in their RXs because of the amount of power that
their antennae will pick up?

It is not just the RF amps.
The EMP is a high power broadband RF pulse that will turn almost any bit
of wire regardless of length into an antenna and so fry any small scale
electronics that it attaches to.
Any electronics that is not in a Faraday cage is at risk if it is in a
high power region of the pulse.

Andy


I think the EMP damage would depend on the size of the bomb, the
distance from the bomb, and the type of nuclear weapon used. There are
enough variables here to make it difficult to estimate the threat.

I don't know, are thermonuclear weapons capable of producing a larger
EMP? Just guessing on the blast produced I would say they would do more
damage. Again, that is only a guess. Do neutron bombs produce more or
less EMP?

In rec.radio.amateur.antenna Tom wrote:
On 11/18/2015 1:55 AM, AndyW wrote:
On 17/11/2015 18:30, gareth wrote:
Those who were self-taught to the exclusion of sideband and sidetone
are no doubt unaware that in the event of a nuclear detonation that an
EMP
will melt the RF amps in their RXs because of the amount of power that
their antennae will pick up?

It is not just the RF amps.
The EMP is a high power broadband RF pulse that will turn almost any bit
of wire regardless of length into an antenna and so fry any small scale
electronics that it attaches to.
Any electronics that is not in a Faraday cage is at risk if it is in a
high power region of the pulse.

Andy


I think the EMP damage would depend on the size of the bomb, the
distance from the bomb, and the type of nuclear weapon used. There are
enough variables here to make it difficult to estimate the threat.

I don't know, are thermonuclear weapons capable of producing a larger
EMP? Just guessing on the blast produced I would say they would do more
damage. Again, that is only a guess. Do neutron bombs produce more or
less EMP?

If you are close enough to a neutron bomb to experience the EMP, it is
irrelevant as you will be dead anyway.

If you really want to know about nuclear EMP, read this:

https://en.wikipedia.org/wiki/Nuclea...magnetic_pulse


--
Jim Pennino

On Thursday, November 19, 2015 at 8:46:07 PM UTC-6,

If you are close enough to a neutron bomb to experience the EMP, it is
irrelevant as you will be dead anyway.

That's been about my usual thinking.. I think the whole EMP deal is a wee tad
bit overplayed. Seems to me, if bad enough to toast infrastructure, bad enough
to toast carbon life forms. :| Or at the least, a severe pseudo sunburn..

Heck, a very close lightning strike is a fairly strong EMP event. Sometimes
it causes mayhem, often times not.
I still have old tube rigs if things came to that. But I don't fear for any of
my modern rigs if they aren't hooked up. And I have more than one rig to
increase the odds of one surviving.