Re: [PSUBS-MAILIST] Re:UQC communications

[Al Secor <wreckdiver@usadatanet.net>]

A UQC is different from a hydrophone....a hydrophone is basically an
underwater microphone designed to pick up audio sounds.  A UQC is
essentially and underwater 2-way radio which modulates the audio on an
ultrasonic carrier.  Most of the ones for scuba are modulated on a 32
khz carrier and are single side band.  I have one made by OTS for use
with an AGA full face mask and it works quite well.  I tried designing
and building one of my own and while it worked, it was nowhere's near as
good as the OTS one.

Al

Ian Roxborough wrote:
> 
> If an UQC if the same/similar as/to a hydrophone, then there
> are some hydrophone plans I've been collecting parts for that
> might be of interest to some people:
> 
> http://sonar-fs.lboro.ac.uk/uag/products/products_hydrophone.html
> 
> I've almost got enough parts to finish one now, I'll probably
> pick up the remaining parts soon.  When I've finished it, I'll
> let the list know how well it works (if I finish it)...
> 
> Ian.
> 
> On Thu, 18 Jul 2002 14:23:42 -0700 (PDT)
> Ray Keefer <Ray.Keefer@Sun.COM> wrote:
> 
> > Hi Dan,
> >
> > I got a copy from Captain Kitteridge with the intention of making a couple
> > for the Regatta. Then afterwards for sale. All he provided was the
> > schematic. No parts list or sources. The components refered to on the
> > schematic are a little dated and I had a hard time finding any specs on
> > them.
> >
> > There was no details of the key component, the transducer. Apperantly the
> > Captain built his own out of a ceramic cylinder, machined parts and
> > epoxy.
> >
> > The printed circuit board is a single-sided board that the Captain had
> > made for him from a shop on the East Coast.
> >
> > The best way to get a copy is to contact the Captain directly.
> >
> > Regards,
> > Ray
> >
> > > Date: Thu, 18 Jul 2002 16:29:32 -0700
> > > Subject: [PSUBS-MAILIST] Re:UQC communications
> > > From: "Daniel Lance" <lanceind@cconnect.net>
> > > To: personal_submersibles@psubs.org
> > > X-Priority: 3
> > >
> > > To Psub community,
> > > I am interested in building some UQC communication equipment for my K-350. I
> > > saw a thread in the archives about a schematic designed by Captain
> > > Kitteridge might be available . Does anyone know where I can purchase a copy
> > > ?   I would be interested in any feedback someone could offer on this
> > > subject, or any other designs that have been proven to work.
> > > Thanks ,
> > > Dan Lance
> >
> 
> --
> The moon ate the sun on Monday and it was an awsome sight to see.

-- 
Al Secor  ARS: WA3PWX  Scuba Instructor SSI DCSI 5528
http://www.geocities.com/SubDiverI