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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>In addition to this, once I have all of the HPSDR boards (my
card was charged for Mercury today! YIPPEE!), I will add HPSDR and QS1R to
GnuRadio and thus DttSP. I have need of all of them. It is almost to the
point where it doesn’t matter if it is USB2.0 or GigE, so long as certain
functions are there, it can be married.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>73<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bob<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>N4HY<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ARRL SDR Working Group Chair<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Member: ARRL, AMSAT, AMSAT-DL, TAPR, Packrats,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>NJQRP, QRP ARCI, QCWA, FRC.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>" Don't despair, not even over the fact that you don't
despair. ", Kafka<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> hpsdr-bounces@lists.hpsdr.org
[mailto:hpsdr-bounces@lists.hpsdr.org] <b>On Behalf Of </b>Frank Brickle<br>
<b>Sent:</b> Wednesday, November 26, 2008 9:47 AM<br>
<b>To:</b> stevezsuzska@iinet.net.au<br>
<b>Cc:</b> hpsdr@lists.hpsdr.org<br>
<b>Subject:</b> Re: [hpsdr] Data transmission functionality<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>If you're interested in
experimentation, you can't do better than GNU Radio:<br>
<<a href="http://gnuradio.org/trac">http://gnuradio.org/trac</a>><br>
If you have multiple soundcards you can easily kludge up an analog patch
between GNU Radio processes and other software, simply to get off the ground
quickly.<br>
<br>
We are currently working on seamless interoperability between GNU Radio and
DttSP<br>
<<a href="http://dttsp.org">http://dttsp.org</a>> and <<a
href="https://www.CGRAN.org">https://www.CGRAN.org</a>>. Many of the
conventional and new digital regimes are already represented in the GNU Radio
codebase. GNU Radio is a natrual partner for supplying the DSP components
absent from DttSP.<br>
<br>
Along the same lines, there are alternate UI applications (java-sdr and
sdr-shell) running on Linux and Mac OS X, which should be capable of handling
HPSDR without major surgery, if somebody wants to undertake the modifications.<br>
<br>
73<br>
Frank<br>
AB2KT<br>
<br>
<o:p></o:p></p>
<div>
<p class=MsoNormal>On Wed, Nov 26, 2008 at 2:57 AM, <a
href="mailto:stevezsuzska@iinet.net.au">stevezsuzska@iinet.net.au</a> <<a
href="mailto:stevezsuzska@iinet.net.au">stevezsuzska@iinet.net.au</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>***** High Performance Software
Defined Radio Discussion List *****<br>
<br>
<o:p></o:p></p>
<p class=MsoNormal>Are there any plans to implement HF data transmission
functionality on HPSDR for digital voice etc? I guess this would run on a PC
connected to Mercury and Penelope. It's an area I'd love to get more familiar
with, particularly modem design. There are some good digital voice systems
around for amateur use, such as FDMDV, but none is open source as far as I am
aware. Can anyone recommend any good introductory texts on this subject, which
cover the practical implementation of frequency offset correction, symbol
synchronisation and channel equalisation?<br>
<br>
73 de Steve VK6ABZ<o:p></o:p></p>
<p class=MsoNormal><br>
<br>
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<p class=MsoNormal><br>
<br clear=all>
<br>
-- <br>
If you want to know what God thinks of money, just look at the people he gave
it to. -- Dorothy Parker<o:p></o:p></p>
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