Xref: utzoo rec.autos:25631 sci.electronics:8733 misc.consumers:15025
Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!samsung!aplcen!haven!umbc3!umbc5.umbc.edu!dave
From: dave@umbc5.umbc.edu (David A Freeman)
Newsgroups: rec.autos,sci.electronics,misc.consumers
Subject: Re: the laser speed measuring device
Message-ID: <2546@umbc3.UMBC.EDU>
Date: 22 Nov 89 20:14:00 GMT
References: <89325.164006BHB3@PSUVM.BITNET>
Sender: newspost@umbc3.UMBC.EDU
Reply-To: dave@umbc5.umbc.edu.UUCP (David A Freeman)
Organization: University of Maryland, Baltimore County
Lines: 24

In article <89325.164006BHB3@PSUVM.BITNET> BHB3@PSUVM.BITNET writes:
>I finally got the long awaited information I requested on the laser speed
>
>                     LASER SPEED GUN


  Now this is a prime candidate for a jammer.  I assume all that is needed is
an IR laser diode with a lens to disperse the beam about 25 degrees.  A power
supply would generate pulses at a frequence that would screw up the guns 
timing ability.  This could be coupled with an IR photo transistor that 
reacts to IR pulses of the proper wavelength.  
  Any idea what wavelength the beam is?  How about the guns pulse frequence 
and interval?





						dave


David Freeman
Systems Programmer			dave@umbc3.umbc.edu
Univ Md Baltimore County		dave@umbc             !bitnet