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Test two of David Bartsch's homemade anti collision sonar

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Uploaded by on Sep 8, 2009

As I descend below the surface a boat with a 25 hp Honda circles me at approximatly 10 yard increments. You will here it fade and then get louder as it enters the foward faceing sonar receivers cone of reception.

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Science & Technology

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All Comments (4)

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  • You could never get me in anything like that lol. You are a brave man.

  • for 1 momment i thought that was just a barrel when i fiqure that was his nose LOL hahaha

  • i wana make one!!! :D

  • Wow great stuff i am going build a one manner myself!!!How is the sonar made?

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