Text 11550, 55 rader
Skriven 2009-05-28 14:50:09 av Richard Webb (1:116/901.0)
  Kommentar till text 11542 av Bob Ackley (1:300/3)
Ärende: Using What Works
========================
Hi Bob,

On Wed 2037-May-27 07:06, Bob Ackley (1:300/3) wrote to Richard Webb:

<snip>
 DC>> everywhere.  The  joke in Get Smart about the need for a Cone of
 DC>> Silence is becoming a  reality.  

BA> Also note that now when the police are committing some atrocity they
BA> look around for video cameras - and if they find any they confiscate
BA> them. 

OF course, it's becoming standard operating procedure.  THey know they don't
want some citizen showing the world what
might be construed as a violation of somebody's rights.

 RW> IT is.  Almost makes a guy want to do the electronmagnetic
 RW> pulse device.

 RW> some folks tried combating what they knew they'd be coming
 RW> with cell phone ajmmers, but you can't deploy 'em here in
 RW> the United STates, they're quite illegal.

BA> A Faraday cage isn't, though.  Not yet anyway.  Expen$ive as h*ll,
BA> but not illegal.

true, but hard as hell to build one.  DOwntown des MOines at a company which
maintains a lot of the paging systems etc.
they've got one for working on equipment because downtown DM is so full of rf
signals that it's necessary to bench test
some of their gear.  walls lined with copper, all bonded
together, and well grounded.
YOur atuomobile if it's all metal is about as good as  you
can get as a faraday cage.  IN fact that's what I tell hams
trying to use their little portables with the rubber duck
antenna inside the car.  "get that antenna outside that
roling faraday cage <g>. Hard as hell to build.
ONe little hole for rf to get through and your cage is
worthless.
tHe folks originally built my remote audio truck thought
they were kicking major tail by lining the walls with lead,
but lead is not what they needed.  THey needed to line the
walls with copper, and rig a damned good bond with earth
ground.  I had to call a guy to get parts for my mixing
console yesterday, and had to be looking at the console when I talked to him. I
was able to do it from inside the control room in the back of the truck using
my wife's tracphone.
Had it been a true faraday cage I"d have never gotten to the cell site.


Regards,
           Richard
... Secret of electronics:  Keep the smoke in the wires.
--- timEd 1.10.y2k+
 * Origin: Radio REscue net operations BBS       (1:116/901)