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RE: [PSUBS-MAILIST] Passive vs active sonar




A fish finder is active sonar.  I don't know how high quality you can get
or how good they are these days.

I think it might bear investigating though.

Comments??

Jay.




                                                                                                                                                
                      Michael Fodor                                                                                                             
                      <hgc_michael_1@yahoo.com>         To:       personal_submersibles@psubs.org                                               
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                      owner-personal_submersible        Subject:  RE: [PSUBS-MAILIST] Passive vs active sonar                                   
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                      27/03/2003 03:31 PM                                                                                                       
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Are there Passive and Active sonar  for sale that could fit into our subs ?
Any links or sites worth mentioning ?








 Rob <rbell@fidnet.com> wrote:
 Wow, I can finally add value. Passive sonar (simply put) is listing to
 the sounds around you without doing any noise making of your own.
 Active sonar is generating a sound then listening to the echo from
 objects near you. Active sonar is what you get in the movies. That
 "ping" noise. The active sonar I was used to (x-navy here) does not
 usually sound like the classic "ping".

 -----Original Message-----
 From: owner-personal_submersibles@psubs.org
 [mailto:owner-personal_submersibles@psubs.org] On Behalf Of peter
 mckellar
 Sent: Thursday, March 27, 2003 2:51 AM
 To: personal_submersibles@psubs.org
 Subject: [PSUBS-MAILIST] Passive vs active sonar

 hi all,

 could someone please explain the difference between active and passive
 sonar?

 thx in advance
 peter




HGC. Michael

The new Guardian



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