<div dir="ltr"><div>On a whim, I thought I might try the Jetson TK1 board with mono/kiss konsole. After working out the dependencies, it appears to run OK (I haven't transmitted yet). Anything beyond 96000 sample rate will give audio distortion on the receive. If I choose 192000 and then select NR, it really goes off the rails. Keep in mind that this is completely running within the ARM hard float CPU, which is using the original libfftw3 FFT library. Utilizing a CUDA optimized FFT library would probably give a lot more headroom. Both the spectrum and waterfall displays are ok with some slight hiccup that correspond to audio blips.<br>
<br>73,<br><br></div>Jae - K5JAE<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Aug 31, 2014 at 5:12 PM, Rob Frohne <span dir="ltr"><<a href="mailto:rob.frohne@wallawalla.edu" target="_blank">rob.frohne@wallawalla.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>That's neat Jae!<br>
<br>
73,<br>
Rob<br>
KL7NA<br><br><div class="gmail_quote">On August 31, 2014 12:36:38 PM AKDT, Jae Stutzman <<a href="mailto:k5jae@stutzman.net" target="_blank">k5jae@stutzman.net</a>> wrote:<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<pre>***** High Performance Software Defined Radio Discussion List *****<br><br></pre><div><div class="h5"><p style="margin-top:2.5em;margin-bottom:1em;border-bottom:1px solid #000"></p><div dir="ltr">The link should not have the following '.' at the end. Here it is again: <a href="http://i.imgur.com/AsJ4pSE.png" target="_blank">http://i.imgur.com/AsJ4pSE.png</a><br>
<br></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Sun, Aug 31, 2014 at 3:30 PM, Jae Stutzman <span dir="ltr"><<a href="mailto:k5jae@stutzman.net" target="_blank">k5jae@stutzman.net</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr"><div><div><div><div><div>After about 3 hours worth of work and a few workarounds, I made my first QSO on 20 meters under Linux!<br><br></div></div>I
used MonoDevelop as the IDE for the C# KISS solution. I had to make a
couple of changes for the P/Invokes of the fftw3f library and some of
the Networking calls, which are still not implemented within the Mono
CLR. The performance is quite good, I'll compare it to my Windows box to
see the differences.<br>
<br></div>Here is a link to a screenshot of how it looks: <a href="http://imgur.com/AsJ4pSE" target="_blank">http://imgur.com/AsJ4pSE</a>. I'll document my changes and the dependencies that I installed to make it work soon.<br>
<br></div><div>
Thanks everyone for the welcome and thanks to the authors of KISS Konsole for making the porting easy :)<br><br></div></div><div>
<br>73,<br><br></div>Jae - K5JAE<br><br><br><br></div>
</blockquote></div><br></div>
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