Re:Re: [PSUBS-MAILIST] Hydrophones

["silky" <silkyfx@dangerous-minds.com>]

i thought http://www.dolphinear.com/index.htm product   $250 shipping
included. includes: Hydrophone, 8 metre cable (25 ft), Amplifier,
Earphones, Software, Battery
7 Hz - 22,000 Hz this is way more than needed for listening to dolphins

Dose anyone know how a sonar transducer works, how dose it determine the
angle of incidence?????????? if it is capable of picking up a similarly
wide range of frequency?s,
this type of hydrophone has grate potential for the same propose. 

----------------------------------------------
Original Message
From: "Michael Holt"<mholt@ohiohills.com>
Subject: Re: [PSUBS-MAILIST] Hydrophones
Date: Fri, 06 May 2005 20:24:58 -0400

>silky wrote:
>
>>  I remember someone saying that they had been looking for a hydrophone
>>  for some time. I found a few sites that sell or manufacture them.
>>  http://www.dolphinear.com/index.htm http://www.cetaceanresearch.com/
>>  http://www.aquarianaudio.com/products.htm
>>  http://home.att.net/~hightechinc/borehole_new.html I think the
>>  hydrophones from the last address are best for a psub
>
>Thanks.
>
>All seem kinda expensive.
>
>
>
>Mike
>
>
>
>
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