RE: [PSUBS-MAILIST] Passive vs active sonar

[Michael Fodor <hgc_michael_1@yahoo.com>]

Yeah it is but you have to keep in mind that all your scanning with a fish finder is the bottom, and not all around you.

 

 jbarlow@bjservices.ca wrote:

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
To: personal_submersibles@psubs.org
Sent by: cc:
owner-personal_submersible Subject: RE: [PSUBS-MAILIST] Passive vs active sonar
s@psubs.org


27/03/2003 03:31 PM
Please respond to
personal_submersibles






Are there Passive and Active sonar for sale that could fit into our subs ?
Any links or sites worth mentioning ?








Rob 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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HGC. Michael

  The new Guardian

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