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RE: [PSUBS-MAILIST] PVC hydrophone cost



Frank,
 
  Do to lifes heavy demands, I will not be able to get away this year to attend. I will forward some e-mail attachments covering the amplifier console inner workings I took but the other night and sent to Jon.
  This amplifier along with the hydrophone within the aluminum casing is by far the most sensative unit our group of researchers have thus far produced. Within the hydrophone case itself is contained an additional preamplifier.
  Should all submarines someday be equipt with a means of "listening" underwater (which is my goal), this does form the recieve half of a voice transmitted underwater communications system.
 
  With this passive sonar installed aboard your boat, you will be able to hear surface boat traffic and aquatic biological sounds. I feel that this simple system will be sure to enahance your submarine fun and safety!
 
  It is being shipped to Jon for his presentation at the convention and I will inform him to hand it over to you following this demonstration. I will be available to aid you in "how to install" in e-mail and phone voice as needed.
 
  Give me your mailing address and I will send you a control and indicator breakdown of the amplifier console front cover. With this early, you could be the one to demonstrate how the sonar system would be operated.
 
  I am working with someone on enclosing a small color tv camera within one of these PVC enclosures. I will share that which we have found to be of use with the group and this individual will be allowed to retain this initial system.
 
  The lighting application has yet to be initiated as to a prospectful candidate. I will be willing to produce a unit for you to install aboard your sub. You in turn will critique its performance and share the good and bad with the group as a whole. This lighting unit will run off of 12vdc and the parts and costs will also be shared with the group as well. If you agree to be a part of this team, we will start following the convention and the passive sonar introduction in August.
 
  Your boat is the saucer sub and apart from the trail well traveled...I like that trail as so many suprises await you taking it. Your doing wonders on the sub so keep up the great work of informing us of your progress...I guess we are going so slow with our that this proves to inspire us!
 
                                                                                  David Bartsch



From: ShellyDalg@aol.com
Date: Wed, 23 Apr 2008 14:56:41 -0400
Subject: Re: [PSUBS-MAILIST] PVC hydrophone cost
To: personal_submersibles@psubs.org

Hi David. No problem. I sometimes get confused with who I'm talking to also. Today I've started on the steel structure for the front end. Nice to take a break from that damn foam and mud for a while.( I get to use my big hammer today, WOOPEE!!!)
 The sonar device sounds like one of the most useful add-ons we could use in our subs. Were you originally contemplating using this as part of an under water comm system ? Or maybe that was someone else's project. Anyway, keep up the good work, and if you'd like me to try the sonar unit, let me know. Thanks again, and see you at the convention. Frank D.




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