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<DIV><FONT face=Arial size=2>Hi All,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I found a bug in the software...</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Iam using the latest powersdr version from svn rev
2321.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When setting the samplefreq to 192Khz there is no
difference between the two channels. But setting the sample freq to 48Kc or 96
Kc there is a difference.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Are there others with the same
problem?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>73 Johan PA3GSB</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=johan.maas@hetnet.nl href="mailto:johan.maas@hetnet.nl">Johan
Maas</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=hpsdr@lists.hpsdr.org
href="mailto:hpsdr@lists.hpsdr.org">hpsdr@lists.hpsdr.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, June 18, 2008 7:03
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Janus problem; difference of
6dbFs between left and right in powersdr.</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Hello All,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Iam testing a homebrew ISD , looking with rocky
(via on board soud card) the output of both channels is equal.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>But looking to the PowerSDR and using Janus i
have a difference of 6db between the channels.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have been measuring on the input with a scoop;
i found a difference on JP6 and JP3. JP3 shows signal and JP6
not!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When looking to the schematic (a PDF of scheme
(2006042101) XC11 ) i see difference in the circuit description
between the two channels:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>- JP3 is directly connected to the
ADC</FONT></DIV>
<DIV><FONT face=Arial size=2>- JP6 is connected via R26 to the
ADC</FONT></DIV>
<DIV><FONT face=Arial size=2>- JP6 is connected via R26 to the
ADC</FONT></DIV>
<DIV><FONT face=Arial size=2>- JP3 is connected via R12 and R6 to the
ADC</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Is the drawing wrong? But where does the
difference come from?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Hope someone an help?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>73 Johan
PA3GSB</FONT></DIV></BLOCKQUOTE></BODY></HTML>