I found the omni directional transducer.  They are made by a company in=20
Canada called Benthowave.  The only problem is the priceing starts at =20
$985.00 and goes up from there.  This drives the price up above what I=20
can afford to spend on the project.

I have had some suggestions of home made ones that I am going to=20
experiment with.
One interesting one is to put a piezoelectric speaker in vegetable oil=20
in a sturdy  plastic bag and seal it.  Very crude but it seems functional.
I am going to find and order some piezo parts out today and start to=20
experiment.
I will post some results.


On 1/3/2016 6:48 PM, BOB wrote:
> I need to find a sonar transducer that transmits in a full 360 DEG
> pattern.  All fish locators/ depth finders transmit in a 60 DEG cone.
>
> I also need some one who can design a circuit that would send out a ping
> for a short time ( less then 100MS)  Also the circuit would listen for a
> ping and thenout put a signal.
>
> I have communicated with design techs work with fish locator and sonar
> units.  They tell me they cant help but claim it would be a peice of
> cake for an electronics technician to design a circuit.
>
> Is there any one out there who has the ability to do this and would want
> to help with this?
>
> bob

--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.