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<div>Brian,</div><div>Neat idea</div><div>Hank</div><div><br></div>
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On Friday, May 17, 2019, 9:35:13 PM MDT, Brian Cox via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<div><div id="yiv7197185074"><div style="font-family:Arial, sans-serif;font-size:10pt;"><font face="Arial, sans-serif" style=""><font size="4"> I've been thinking about some sort of pinger locator for my sub. I may get a commercially available one just as an extra safety measure, but in the mean time I was playing around with my depth finder on my sailboat . I was thinking if I had a rotating disk that would be a little higher than the sub the changing surface exposure to the sonar waves would appear on the depth finder as a recurring blip . I tried it with a radar reflector that I have, I tied it to a line and located it just below my transducer, I was able to move it around and observe the display on the screen. Since the radar reflector ( used on boats so big ships can see you) has all these sides to it, as I moved it around it would show up intermittently since the sound wave sometimes would not bounce back. I think a flat surface rotated so only the edge is showing and then a large surface was showing at a regular intervals could work as an indicator. I might be especially valuable if you were blending into the bottom so much as to not be detectable . That way someone with just an ordinary depth finder could detect you. </font></font><div><font face="Arial, sans-serif" style=""><font size="4"><br></font></font></div><div><font face="Arial, sans-serif" style=""><font size="4">Brian </font><font size="2"> </font></font></div></div></div>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br></div>
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