RE: Another speeding ticket question

["Bob Rossato" <bob.rossato@att.net>]

> >Good ol' internet...
> >
> >Radar does not need to be stationary to get an accurate,
> reliable >reading.
> In MA, they have units that are aware of the police car's >speed, and take
> that into account when determining the speed of >oncoming traffic. Is that
> really hard to believe?
>
> Well, Paul is correct.  Most radar units are installed into the police
> crusier so that they can track the speed of other cars while they are
> moving.  I've been nailed that way a few times!  They are hooked into the
> car and just compesate for the speed the car is moving and display a
> differential speed.
>
> However...  they are not that reliable.  If either the speedometer isn't
> calibrated correctly or the radar gun isn't calibrated right, than it can
> VERY easily come up with an inacurate speed reading.

My understanding of moving RADAR is that it takes a reading from a
stationary object, e.g. the road, to determine the speed of the cruiser and
compares it to the reading from the moving object, the victim, to determine
it's speed.  They are not hooked into the vehicles speedometer.

Bob R.