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Hi Andy, I found you. ;) http://www.desertstar.com/AboutUs_people.aspx It looks like you guys have a interesting acoustic modem unit. http://www.desertstar.com/newsite/modems/modems.html "You can also make up a predefined list Messages and then only need to send one or a few bytes of data. Things like OK, Reached Operating Depth, Being Attached by a Shark, etc." Your above quote reminded me of a text messaging unit the Ian brought to are attention some time back. The boat unit goes for $2040.00 US and a single hand unit goes for $999.00 US. https://www.plimus.com/jsp/dev_store1.jsp?developerId=156762&bCUR=USD http://www.utc-digital.com/index.asp Regards, Szybowski > Date: Tue, 20 Jan 2009 16:05:18 -0700 > From: ag@desertstar.com > To: personal_submersibles@psubs.org; personal_submersibles@psubs.org > Subject: Re: [PSUBS-MAILIST] The Abyss Communication Unit > > Brent, > > Desert Star has built some digital acoustic comms systems. There are a bunch of companies that make > acoustic modems (linkquest, DSS, benthos, etc.) A couple of points: > > Jay et. all are correct in that it is almost impossible to beat the utilliy of voice comms. Human brains are very good a processing > even very distorted garbled speech. > > That being said there are a few cases where non voice comms can be usefull (as long as they dont interfere with the voice comms.) > > To continuously telemeter data to the surface is sometimes useful. Datum like Bat voltage, Air supply, Depth etc. > Of course you can also do this by just including a periodic report on your voice comms as standard operating procedure. > > You can also make up a predefined list Messages and then only need to send one or a few bytes of data. Things like OK, Reached Operating Depth, Being Attached by a Shark, etc. > > Having to type out messages on a keypad quickly becomes unworkable, esp. for a diver. But a sub pilot also has his hands full with other > tasks. > > But again if you do want a device to do these kinda things it would be an acoustic modem. > > -a > > > > -----Original message----- > From: Brent Hartwig brenthartwig@hotmail.com > Date: Tue, 20 Jan 2009 15:50:10 -0700 > To: PSUBSorg personal_submersibles@psubs.org > Subject: [PSUBS-MAILIST] The Abyss Communication Unit > > > > > Hi Jon and Jay, I would also prefer to have a simpler basic voice communication SCUBA type system if it is reasonably priced and has as good as or better range then the type of soft TDD unit I was thinking about. I have a hearing impaired Uncle that is very interested in piloting my sub and being a big part of the surface crew as well. So I have a special need in this case. I would also have a SCUBA type or the type David is working on for my primary communication unit. But having the other unit as well could be used as a back up unit. > > > > In the movie the Abyss towards the end, they sent a diver down really deep to defuse the nuke, and he had to use a special liquid to breath, so he couldn't talk. So they used a typing device like I'm thinking about. Is that a real unit, and if so what is that unit called? > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. Your email address appears in our database > because either you, or someone you know, requested you receive messages > from our organization. > > If you want to be removed from this mailing list simply click on the > link below or send a blank email message to: > removeme-personal_submersibles@psubs.org > > Removal of your email address from this mailing list occurs by an > automated process and should be complete within five minutes of > our server receiving your request. > > PSUBS.ORG > PO Box 53 > Weare, NH 03281 > 603-529-1100 > ************************************************************************ > ************************************************************************ > ************************************************************************ > |