|
To all: This to me is a very interesting clip. It shows his marker buoy as it deploys and his boat submerges. This allows his partner to pinpoint his location while maneuvering his surface craft sonar target. His tests are conducted with a controlled surface contact and still he picks up unknown contacts! In all, a very fun submarine video! My thanks to Kyle for having shared with us this footage. It should be noted that the hydrophone used in these tests is a special hybrid under investigation. It lacks an air resonance chamber hence should be operable to great depths without the fear of imploding or flooding. It is directional to some degree as his friend becomes loudest as he positions himself to Kyles' forward facing. This hydrophone is quite rugged in how it was constructed and could withstand a considerable punishment before becoming disabled. Again, this hydrophone is still under testing but the initial results look promising. Dean Ackman is also using this form of hybrid on his new submarines underwater communications sonar. Its use as a communications hydrophone should be known as soon as these tests are conducted. From Kyle...Enjoy the video! David Bartsch From: edlunddds@comcast.net To: dbartsch2236@hotmail.com Subject: Re: video Date: Wed, 9 Sep 2009 21:57:02 -0500 David here is a link to test two of your sonar you can share it with the group when you see fit. I feel it is a little long but could not edit it once in YT. http://www.youtube.com/watch?v=aDVfegbeU5k
I had Matt start circling me at 10 yard increments (approx. every 30 seconds) after I submerged. You can here the motor get louder as it passes in front. Because different motors are noisier than others it is difficult to estimate range.
I can here other motorized craft in the distance and use caution until they are fading away. The sonar does amplify these motors when my own motors are not running.
to me the system is a nice adjunct to a communications system but would not be a stand alone item unless the motors did not interfere as I rotated or I could rotate the receiver 360 degrees from inside the sub.
Kyle Get back to school stuff for them and cashback for you. Try Bing now. |