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Re: DSP-12 - a good P3D 400 Bd TLM receive modem



I have a few times considered selling the whole shebang, KCT card, G5400
setup, fiberglass cross-boom, DSP-12, TS790 with all mods, Landwehr
pre-amps....but then I thing of how much fun it all was.

Rudy Benner



----- Original Message -----
From: "David M. Tipton, PhD" <tiptond@psi.com>
To: "Rudy Benner" <bennerr@ntl.sympatico.ca>
Cc: <amsat-bb@AMSAT.Org>
Sent: Sunday, October 01, 2000 10:32 AM
Subject: Re: [amsat-bb] DSP-12 - a good P3D 400 Bd TLM receive modem


> Is it still possible to buy a DSP12??
>
> Dave
> At 16:22 9/30/00 -0400, you wrote:
> >As a matter of fact, I do have one of these getting dusty, I will file
this
> >message for the day when I can again pull out my TS790, my DSP-12 and the
> >other goodies that worked so well for me in the past.
> >Thanks
> >
> >
> >Rudy Benner
> >
> >
> >
> >----- Original Message -----
> >From: "Bent Bagger" <oz6bl@fern.dk>
> >To: "The Amsat Bulletin Board" <amsat-bb@AMSAT.Org>
> >Sent: Saturday, September 30, 2000 5:13 AM
> >Subject: [amsat-bb] DSP-12 - a good P3D 400 Bd TLM receive modem
> >
> >
> > > Now is the time to dust of that DSP-12 which is sitting on your shelf
and
> > > prepare for the upcoming launch of P3D, because here is some good news
for
> > > all you DSP-12 owners: I have uploaded a modified version of the 400
Bd
> > > PSK modem for the DSP-12 to the following URL:
> > >
> > > ftp://ftp.tapr.org/dsp/Motorola/dsp56001/dsp-12.
> > >
> > > The modification consists of a change to the software so that it sends
514
> > > bytes rather than 512 to the listening program. In this way also the
CRC
> > > bytes will get transmitted to the listening program.
> > >
> > > The modified modem has been tested by Stacey Mills, W4SM, and he has
this
> > > to say about the modem:
> > >
> > > "I burned the new eproms and checked out the 400 baud PSK demodulator
with
> > > 514 byte capacity. It works very well... Actually, very, very well. In
> > > fact, doing some tests with some 400 baud PSK wave files that I have
> > > generated, having a calibrated background noise, the DSP-12 functioned
as
> > > well or better than any other modem I have tested"
> > >
> > > The file gce201.zip contains these files:
> > >
> > > READ.ME
> > > GCE.V40 - Executable that may be downloaded to the DSP-12
> > > GCE.B - PROM image for the B-PROM. Checksum: $1900
> > > GCE.D - PROM image for the D-PROM. Checksum: $5000
> > > GCE.F - PROM image for the F-PROM. Checksum: $4900
> > >
> > > Have fun.
> > >
> > > Best 73 de Bent/OZ6BL
> > > (also oz6bl@amsat.org)
> > >
> > > ----
> > > Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
> > > To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
> > >
> >
> >----
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>
> ----
> Via the amsat-bb mailing list at AMSAT.ORG courtesy of AMSAT-NA.
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>

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