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Re: [PSUBS-MAILIST] Re: UQC communications
Mike, I have a bunch of old military surplus throat mikes (20 yrs old) and
some Ultrasonic Transducer. I originally was going to make diver
communications equipment out of them. I never got around to doing it. I made
an underwater modem using the transducers, but never used the Mikes. If
someone wants a set (and are serious about building a system), let me know
and I'll mail them to you,
Suds
PS: I thought I better check before sending the e-mail. I only have 4 of
them: Western Electronic, D173077, T-30=0. They are in good shape (made for
the military). The UTD (have about 10 of them) are FSN-N 5845-325-6855,
Crysatl Units, Ceramic, N126-099802, Electro Ceramics, S.L.C. Utah. I only
have one flat transducer, the others are cylindrical (1962), and it looks
like they are coated with silver? The flat transducer has a PC board
attached to it (I must have made it, it looks like my soldering), but it's
been too long ago to remember. Looks like an amplifier though.
>From: Michael Holt <mholt@richmond.edu>
>Reply-To: personal_submersibles@psubs.org
>To: personal_submersibles@psubs.org
>Subject: [PSUBS-MAILIST] Re: UQC communications
>Date: Sat, 20 Jul 2002 11:33:48 -0400
>
>Ron wrote:
> >
> > How much go you figure this is going to cost you, and how many hours
> > work? I would be interested to hear how well it works when it is done.
> > There are a few companies that make diver to diver communications that
> > are inexpensive and can easily be modified to work with a sub.
>
>Ron, what diver communications devices are you talking about?
>
>I have the plans -- in JPG form -- for a wireless voice gadget
>that uses water as the transmission medium. Somwhere I also have
>the plans for a wired diver phone, but it requires throat mikes,
>and I think they're very, very hard to find these days.
>
>
>
>Mike
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