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<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Vasiliy,<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don’t know whether you ever tried to verify this mentioned
screenshot or detect what (additional?) amp at what power level was used for
this wonderful screenshot. <o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Testers reported that the (HPSDR)default figure SetPK=0.4072 in
the Calibration information window has to be reduced to 0.1 to get the
correction working at all. This figure represents the amplitude of the signal
envelope normalized to value 1. For details and deeper information concerning
the losses as matter of principle in the DDC/DUC chain please ask Warren.<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>73, Helmut, DC6NY<o:p></o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
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color:#1F497D'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> gokoyev@gmail.com
[mailto:gokoyev@gmail.com] <b>Im Auftrag von </b>k3it<br>
<b>Gesendet:</b> Dienstag, 28. Juni 2016 21:13<br>
<b>An:</b> Helmut<br>
<b>Cc:</b> Chris Wilson; OpenHPSDR<br>
<b>Betreff:</b> Re: [hpsdr] Hardware pre distortion?<o:p></o:p></span></p>
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<p class=MsoNormal>Helmut<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>I wonder what part of the Chris's message implied that he
was "obviously" not satisfied with the pure signal performance?
:)<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>At the bottom of this page <a
href="http://pavel-demin.github.io/red-pitaya-notes/sdr-transceiver-hpsdr/">http://pavel-demin.github.io/red-pitaya-notes/sdr-transceiver-hpsdr/</a>
there is a screenshot of what looks like an excellent improvement after
applying the PS.<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>Also could you point to the discussion about losses in
DDC/DUC chain in red pitaya?.. <o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal>73! Vasiliy<o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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