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Re: [TenTec] Open Source - an alternative proposal

To: tentec@contesting.com
Subject: Re: [TenTec] Open Source - an alternative proposal
From: David McClafferty <ve1adh@yahoo.ca>
Reply-to: ve1adh@accesswave.ca, tentec@contesting.com
Date: Wed, 29 Sep 2004 10:33:20 -0400 (EDT)
List-post: <mailto:tentec@contesting.com>
Since the firmware controls the frequency selection
and is tied in with filter and mode selection your
sound card software would have to be integrated with
the firmware control. Could get kind of complex.

73, Dave,VE1ADH

 --- Mark Erbaugh <mark@microenh.com> wrote: 
> I think we have to live with the fact that TenTec is
> not going to make it
> easy for third parties to create new firmware for
> the Pegasus (and Jupiter).
> I'd like to float an alternative proposal to the
> group.
> 
> The mods available to support DRM reception merely
> bring the 12 kHz IF
> signal out of the receiver. This signal is fed to a
> computer soundcard for
> processing by the DRM DSP software running on the
> computer. There is no
> reason that alternative software couldn't be
> developed to provide some of
> the receive features that people have been wanting.
> I worked with the
> FlexRadio software for a while and there's no reason
> that similar techniques
> couldn't be used for the Pegasus .
> 
> Essentially, we would be replacing the DSP receiving
> inside with DSP code on
> the PC.While this wouldn't address transmit, most of
> the things people have
> wanted have to do with receive anyways. There are
> open source DSP routines
> available, so we wouldn't have to design and code
> the real low level stuff
> (FFT and the like).
> 
> If someone is interested in working on this, let me
> know.
> 
> 73,
> Mark
> 
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>  

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