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Re: Software Defined DSP Satellite Radio Project?



At 06:45 PM 11/1/2000 -0800, Darrell Bellerive wrote:
>An idea has been floating around in my mind for a few years and I wonder
>if it is feasible. That is to build a software defined DSP satellite
>radio as a group project.
>
>With the lack of an open source software defined DSP satellite radio
>commercially manufactured, is it possible for a group of hams to design
>and build such a radio that would be easily duplicated in kit form and
>encourage experimentation. Perhaps even introduce hams to satellite
>operation or high speed digital satellite operation.
>
>There seems to be some good success lately in the software defined radio
>(SDR) with the Kachina, Pegasus, and DSP-10. Could we build on this work
>and other work and create a transmitter receiver strip for use with
>transverters that was optimized for satellite operations? A radio that
>would not only allow the ever popular voice, CW and 1200/9600 packet,
>but be a framework for high speed digital modes and new emission types.
>
>A number of questions need to be answered:
>
>1) Is there sufficient demand for such a radio? Would this increase the
>number of hams on the satellites or at least on the digital satellites?

I would love to have one.


>2) Is there sufficient resources to design, build prototypes, kit,
>develop software, produce documentation, etc. to develop the radio? Is
>the TAPR model of producing TNCs, etc. something to be considered?
>
>3) Can this type of project be managed and built with the use of the
>Internet as a communications medium much like open source software is
>created? Elecraft and the DSP-10 seem to benefit from this model.
>
>I for one would participate in such a project, but do not have the
>expertise in hardware design and construction or DSP programming.
>However, I could build user interface and control software. I suspect
>that I am like a number of hams who would have expertise in one or two
>areas, but not all disciplines to take on such a project by ones self.
>As a group I would expect that the collective expertise would be
>immense.

No expertise in this (I'm a retired educator) but I surely would like to  help.

>Comments please!
>
>Darrell Bellerive
>VE7CLA
>
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