Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!exodus!oobleck.Eng.Sun.COM!bender
From: bender@oobleck.Eng.Sun.COM (I want to be eating rich soup in another town)
Newsgroups: sci.electronics
Subject: Re: Data xfer UNDERWATER !
Message-ID: <10286@exodus.Eng.Sun.COM>
Date: 22 Mar 91 17:10:49 GMT
References: <430.27e07fdb@brb.isnet.inmos.co.uk>
Sender: news@exodus.Eng.Sun.COM
Organization: Sun Microsystems, Mt. View, Ca.
Lines: 15

In article <430.27e07fdb@brb.isnet.inmos.co.uk> robw@brb.isnet.inmos.co.uk writes:
->I need to transmit some data between two systems about 10 feet apart
->without being physically connected.  
->They will not always be line-of-sight, and they may be UNDERWATER !

How about something like sonar, i.e. use sound?  I don't know what the
propagation delay would be, and what kind of data rates you would get.  Or
how about low-power FM?  Or, magnetic induction - you should be able to get
10 feet or so out of a system like that.

mike
--
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