<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.6000.16681" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<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></BODY></HTML>