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Article #6221

Laser speed gun detectors?

#6221
From: Stirling Hamersley
Date: Fri, 14 Aug 1992 04:43
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The local police have taken to using speed guns that use
a laser to determine car speed to catch those with 
the ye olde radar detectors.  Must have been easier than
outlawing radar detectors as they have done in NSW.

Someone told me there are already laser detectors
around.  Is this true and how do they work?  I imagine
the would not be very effective as the laser beam used
to detect the speed is very directional and should only need
to be on for a fraction of a second, once the car has 
been sighted.  Radar detectors depend on detecting when a
car ahead of your car is being gunned.  I can't see you detecting
the laser until it is too late.

"Speed limits are for Volvo drivers" - Hamersley.
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Message-ID: <1992Aug14.044343.24045@mullet.gu.uwa.edu.au>
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!uniwa!mullet!stirling

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Newsgroups: sci.electronics
Path: arc1-ca.pugleaf.net!sparky!uunet!munnari.oz.au!uniwa!mullet!stirling
From: stirling@mullet.gu.uwa.edu.au (Stirling Hamersley)
Subject: Laser speed gun detectors?
Message-ID: <1992Aug14.044343.24045@mullet.gu.uwa.edu.au>
Organization: University Computer Club --- Perth, Western Australia
Date: Fri, 14 Aug 1992 04:43:43 GMT
Lines: 15