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???
08/05/03 17:06
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 		 #52145 - RE: Long range proximity sensing
Responding to: ???'s previous message
If you aren't ranging what do you want to know where the dot is ? If you just want to know that there is a dot 50 metres away, a highly magnified image of the right point in space can be seen and a modulated spot detected with an avalanche or even bog standard photo-diode.

Steve

List of 29 messages in thread
TopicAuthorDate
Long range proximity sensing            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      
      RE: Long range proximity sensing            01/01/70 00:00      
         RE: Long range proximity sensing            01/01/70 00:00      
            RE: Long range proximity sensing            01/01/70 00:00      
               RE: IS Radar a solution ?: Bert            01/01/70 00:00      
                  RE: IS Radar a solution ?: Bert            01/01/70 00:00      
                     RE: IS Radar a solution ?: Jez            01/01/70 00:00      
                        RE: IS Radar a solution ?: Jez            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      
   RE: Long range sensing            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      
      RE: Long range proximity sensing            01/01/70 00:00      
         RE: Long range proximity sensing            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      
      RE: Long range proximity sensing            01/01/70 00:00      
         RE: Long range proximity sensing            01/01/70 00:00      
            RE: Long range proximity sensing            01/01/70 00:00      
               RE: Parabolic reflectors            01/01/70 00:00      
                  RE: Parabolic reflectors            01/01/70 00:00      
                     RE: Parabolic reflectors            01/01/70 00:00      
                     RE: Parabolic reflectors            01/01/70 00:00      
                        RE: Parabolic reflectors            01/01/70 00:00      
                           RE: Parabolic reflectors            01/01/70 00:00      
                           RE: Parabolic reflectors            01/01/70 00:00      
                              RE: Parabolic reflectors: Hal Albach            01/01/70 00:00      
   RE: Long-range proximity            01/01/70 00:00      
   RE: Long range proximity sensing            01/01/70 00:00      

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