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<DIV>Hi Doug,</DIV>
<DIV> </DIV>
<DIV>Thanks for your comments, much appreciated.</DIV>
<DIV> </DIV>
<DIV>I’m presently working on the new Ethernet protocol which defines to
relationship between the SDR hardware and PC/Server. Once that is done and
started to be implemented I do intend to look at the SDR server options you
mention.</DIV>
<DIV> </DIV>
<DIV>The intent is that the protocol can be used between SDR hardware that only
has a small FPGA, one that has larger FPGA plus a soft or hard microprocessor
or an SDR Server that takes raw ADC samples at a high data rate. </DIV>
<DIV> </DIV>
<DIV>With this protocol in place I sure we can take your suggestions on
board.</DIV>
<DIV> </DIV>
<DIV>73 Phil...VK6PH </DIV>
<DIV> </DIV>
<DIV> </DIV>
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<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=douglas.adams@me.com
href="mailto:douglas.adams@me.com">Doug Adams</A> </DIV>
<DIV><B>Sent:</B> Sunday, May 25, 2014 2:17 AM</DIV>
<DIV><B>To:</B> <A title=hpsdr@lists.openhpsdr.org
href="mailto:hpsdr@lists.openhpsdr.org">hpsdr@lists.openhpsdr.org</A> </DIV>
<DIV><B>Subject:</B> [hpsdr] SDR Architectures</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV
style='FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: "Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; DISPLAY: inline'>*****
High Performance Software Defined Radio Discussion List *****<BR><BR>
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<HR>
Phil & All,
<DIV> </DIV>
<DIV>Very good article, lots of great ideas.</DIV>
<DIV> </DIV>
<DIV>As a relative newcomer to HPSDR and an Apple Mac-centric person it has
become very evident to me that the software is dividing us. Since Sdr is so
dependent on the "S" (software) it is a great shame that so much good work is
done on the various software platforms (Windows, OS X, Linux, Ubuntu, etc.) and
yet little of it is shareable. Many of us with programming skills and the urge
to create something for SDR are unwilling to take the time to learn a new
Language and/or Development Environment. In most cases that effort could take
months or years.</DIV>
<DIV> </DIV>
<DIV>My point is that your SDR Server approach could mitigate this issue. Its
interface, ethernet (or whatever replaces it), is inherently multi-platform
therefore a Mac developer should be able to use the server just as easily as a
Windows developer. That's a first step and could make a great deal of
functionality available to people who would otherwise never have access to
it.</DIV>
<DIV> </DIV>
<DIV>I would suggest that you could go one step further. Some of us are
especially interested in a particular area of SDR; demodulation, filtering,
audio processing, digital modes, etc.. The SDR server approach could accommodate
multiple servers each focused on a specialized topic. They could even be
physically different hardware based on different operating systems and developed
with the tools that are in the skill set of its developer. Each server would be
a "Black Box", much like buying an integrated circuit. Over time they could be
upgraded or even replaced with newer, better, faster Black Boxes.</DIV>
<DIV> </DIV>
<DIV>To push the thought again, suppose we developed an agreed upon protocol
(like the Open HPSDR protocol) not only for servers but also for server
components. If, for example, I wanted to try using the AM Demodulator from
cuSDR64 in my Mac-based SDR project, today this would be very tedious if not
impossible. If we could define a protocol for accessing the individual
components of an SDR server (and if cuSDR64's AM Demodulator ran on a conforming
server) it would be doable. All of the best algorithms/software would now be
available to developers regardless of the platform they chose for their own
development efforts.</DIV>
<DIV> </DIV>
<DIV>I'm aware that I've just described tens or hundreds of man-years of work
but we need to start or we'll never get there. If we make it possible to share
our work, regardless of software platform, we might get there sooner rather than
later.</DIV>
<DIV>
<DIV> </DIV>
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<DIV>73s </DIV>
<DIV>Doug - K3TZR</DIV></DIV>
<DIV> </DIV></DIV></SPAN></DIV></SPAN></DIV>
<DIV style="ORPHANS: 2; WIDOWS: 2">PS - I just took delivery of an ANAN-100 so
could we get this done soon? :-)</DIV></DIV>
<DIV> </DIV></DIV>
<P>
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