>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 26 January 2005 03:26
>To: Microcontroller discussion list - Public.
>Subject: RE: [OT] Police "LADAR"?
>
>
>On Tue, 2005-01-25 at 15:54 -0500, Dave VanHorn wrote:
>> >
>> >If you want their Lidar detectors to go off one device that 
>tends to 
>> >do it well is those automatic door opener sensors at grocery store 
>> >entrances.
>> 
>> That's radar. A gunn diode doppler detector, operating in the K or X 
>> band.
>
>Nope. I recently saw an episode of Fifth Gear where they were 
>testing radar and lidar detectors, and one of the major gripes 
>was the lidar detector going off in front of certain grocery stores.
>

Virtualy all the cheap detectors have radar and laser detection, and
virtualy all of them are useless.  Most are designed for the US market
and have X band radar detection which is set off by supermarket door
openers etc (X band is not used for speed guns in the UK).  The only
"laser only" detectors I know of are the ones combined with the GPS
speed camera locator such as the Road Angel and Origin B2.  Laser
detectors by themselves are virtualy 100% useless however, the only
chance a driver would have of detecting a speed gun before being clocked
is if the unit could pick up scatter from another vehicle being targeted
which is a remote chance at best.

Regards

Mike

=======================================================================
This e-mail is intended for the person it is addressed to only. The
information contained in it may be confidential and/or protected by
law. If you are not the intended recipient of this message, you must
not make any use of this information, or copy or show it to any
person. Please contact us immediately to tell us that you have
received this e-mail, and return the original to us. Any use,
forwarding, printing or copying of this message is strictly prohibited.
No part of this message can be considered a request for goods or
services.
=======================================================================

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist