Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!att!cbnews!military From: spencert@turing.cs.rpi.edu (Thomas Spencer) Newsgroups: sci.military Subject: Sonar as a communication device Message-ID: <15341@cbnews.ATT.COM> Date: 7 Apr 90 05:13:57 GMT Sender: military@cbnews.ATT.COM Organization: RPI CS Dept. Lines: 15 Approved: military@att.att.com From: spencert@turing.cs.rpi.edu (Thomas Spencer) Recently there has been some discussion about the lack of PAL's on submarines. The concensus seemed to be that PALs were impractical due to the difficulty of communicating with the subs. My question: How feasible would it be to use sonar to communicate with subs ? Could a well designed transmitter be heard anywhere in the Gulf of Mexico ? -Tom Spencer spencert@turing.cs.rpi.edu uunet!steinmetz!itsgw!spencert "First figure out what you are trying to do." -Me.