Radar Scrambling

[dzorde]

Not to keep this discussion going, but if anyone has a copy of this article
could they either email, fax or post it too me.  Mail me off the list for
any details on fax number or mailing address.

Thanks

Dan     dzorde at geocities.com

>Can't be done.  The way police radar works is by directly measuring the
>speed of your vehicle.  It does this by taking advantage of the doppler
>shift, which is a shift in frequency from a wave reflecting off a moving
>object.  Police laser works by measuring the change in distance to the
>target.  This makes it FAR more susceptible to error than radar.  Say for
>example the initial strike of the gun is on the windshield and then the
>point of aim shifts slightly (during the 1/2 second or so that LIDAR takes
>to lock on) to the bumper.  That would add at least six feet on most cars,
>which is a couple miles per hour in the time period involved.  They also
>always go off about how the beam is only 6 feet wide at 1/4 mile, but as
>car and driver pointed out last month when they discussed how LIDAR had
>been defeated in New Jersey, that assumes the cop is standing in the middle
>of the lane shooting down a straight piece of road.  If there is an offset
>then the beam actually takes a cross sectional slice of the lane it is
>intersecting, which drastically increases the surface area of the beam to
>the point that it could easily broadside two cars at once.  This article is
>well worth reading if you live in a state where laser is common because it
>provides a lot of excellent background information for preparing an
>effective defense, and it was a good refresher for those of us who have
>already been following and trying to figure out how to beat LIDAR tickets.