Charles Stack on Wed, 24 Apr 2002 13:30:09 -0400


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Urban EW (was RE: Ricochet and various wireless (was: Re: [PLUG] key-signing Thursday?))


Well, yeah...it essentially is urban EW.  Emitting a directional beam at
40KW of microwave energy has got to hurt.  Wave guides help to reduce the
side and back lobes, but they still exist (that's with ALL antennas). That's
one of the reasons Radar antennas are mounted high up on a mast.  The other,
obviously,is the the higher the antenna, the farther it can see.  Of course,
that is based on the receive time window and a slew of other factors.

The metal of the other vehicle would some of the RF.  The trick is to set up
a current loop rather than the pure RF radiation hazard.  But, I sure
wouldn't want to be in the path of a 40KW microwave beam.  Me, I'd like to
have make sure that some sort of metal screen is on my windows and such and
that any gaps are less than the wavelength of the RF energy.  If properly
grounded, the operator inside would be in a faraday cage.   My guess is that
a vehicle so equipped might arise suspicion by local law enforcement. <g.

The LA police is supposedly using something similar to stop vehicles.  The
officer drives up close and lets the thing fire.  It toasts the fleeing
vehicle's computer (at least makes it reset) and the vehicle shuts down.

Charles



-----Original Message-----
From: plug-admin@lists.phillylinux.org
[mailto:plug-admin@lists.phillylinux.org]On Behalf Of Paul
Sent: Wednesday, April 24, 2002 1:01 PM
To: plug@lists.phillylinux.org
Subject: Re: Ricochet and various wireless (was: Re: [PLUG] key-signing
Thursday?)


Electronic warfare?  I would guess that metal shielding and the wave
guide would keep the waves pointing in the right direction.  But
wouldn't the metal of the target block much of the radiation?  Try
targeting a Saturn; the side panels are plastic!

>I've heard that putting the magnetron/Kylstron of a few microwaves into a
>waveguide is a good way to fry the electronics of an automobile (when you
>mount it on the front of your car).  Haven't tried this one myself...be a
>little nervouse about the effects of 40 KW of untamed microwave radiation
on
>me and my vehicle.
>



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