<a href="http://www.dttsp.org">http://www.dttsp.org</a><br><br>Regards<br>Frank<br><br><div><span class="gmail_quote">On 7/10/07, <b class="gmail_sendername">Tim Schoenfelder</b> <<a href="mailto:hpsdr@timschoenfelder.com">
hpsdr@timschoenfelder.com</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div style="direction: ltr;">***** High Performance Software Defined Radio Discussion List *****
<br><br></div><br>GNU Radio, other, 'roll your own'?<br><br>
<div><span class="gmail_quote">On 7/9/07, <b class="gmail_sendername">Tim Schoenfelder</b> <<a href="mailto:hpsdr@timschoenfelder.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">hpsdr@timschoenfelder.com
</a>> wrote:</span>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">
<p>What is your experience and/or concerns with the SCA?  </p>
<p>I see benefits as waveform portability with other SDR radios.  For instance, Ossie has several waveforms already including:<br>AM Receiver </p>
<p>Narrowband FM transmitter and receiver </p>
<p>BPSK/CVSD Voice transmitter and receiver </p>
<p>BPSK modulated packetized data transmitter and receiver</p>
<p>that are apparently used one the USRP SDR ( <a href="http://www.ettus.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.ettus.com/</a> ).</p>
<p>While I have 'no dog in the hunt' so to speak, the guys at <a href="http://sdrforum.org/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">sdrforum.org</a> describe in their objectives abstraction, common interfaces, etc in the following powerpoint:
<a href="http://sdrforum.org/pages/brussels_05_drop_box/SCA%20User%20Group%20Summary%20-%20Brussels%20V1.0.ppt#296,3,Statement" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)"> http://sdrforum.org/pages/brussels_05_drop_box/SCA%20User%20Group%20Summary%20-%20Brussels%20V1.0.ppt#296,3,Statement
</a> of Objectives</p>
<div>Tim</div>
<div>KC0TFL</div>
<div><span>
<div><br> </div>
<div><span class="gmail_quote">On 7/9/07, <b class="gmail_sendername">michael taylor</b> <<a href="mailto:mctylr@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">mctylr@gmail.com</a>> wrote:
</span> 
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0px 0px 0px 0.8ex; padding-left: 1ex;">***** High Performance Software Defined Radio Discussion List *****<br><br>On 7/9/07, Tim Schoenfelder < 
<a href="mailto:hpsdr@timschoenfelder.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">hpsdr@timschoenfelder.com</a>> wrote:<br>> Curious as to whether an SCA framework has or is being considered for the
<br>> radio and the different waveforms.  One open source framework that I found <br>> was OSSIE: <a href="http://ossie.mprg.org/About_OSSIE" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://ossie.mprg.org/About_OSSIE
</a><br><br>You could port a SCA framework, but as far as I know it appears to be<br>the wrong way to do SDR, and the idea persists only because it is <br>being using for JTRS being developed for the US military. I suppose
<br>you might want the HPSDR to be slower and more computer resource<br>intensive, in which case SCA could help.<br><br>-Michael, VE3TIX<br>_______________________________________________ <br>HPSDR Discussion List<br>To post msg: 
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http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/</a><br></blockquote></div><br><br clear="all"><br></span></div>
<div><span>-- <br>Tim Schoenfelder<br><a href="http://timschoenfelder.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://timschoenfelder.com</a> </span>
</div></blockquote></div><br><br clear="all"><br>-- <br>Tim Schoenfelder<br><a href="http://timschoenfelder.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://timschoenfelder.com</a> 
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</blockquote></div><br>