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<DIV><FONT face=Arial color=#000000 size=2>Hi Alberto,</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#000000 size=2>If you have an oscilloscope can you
connect it to the Atlas bus C16. As you select the 10MHz source you should
see a 10MHz signal from Mercury or Penelope. If you don't see a signal when
Penelope is selected then you may have a problem with the board. If so
then check on pin 3 of the 10MHz TCXO on Penelope to check it is
working.</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#000000 size=2>I hope that helps find the
problem.</FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2></FONT> </DIV>
<DIV><FONT face=Arial color=#000000 size=2>73's Phil...VK6APH<BR></FONT></DIV>
<DIV><FONT face=Arial color=#000000 size=2> </DIV></FONT>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=i2phd@weaksignals.com href="mailto:i2phd@weaksignals.com">Alberto
I2PHD</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=phil@pharman.org
href="mailto:phil@pharman.org">Phil Harman</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Cc:</B> <A title=hpsdr@lists.openhpsdr.org
href="mailto:hpsdr@lists.openhpsdr.org">hpsdr@lists.openhpsdr.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 08, 2009 9:15 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [hpsdr] 10 MHz clock
source</DIV>
<DIV><BR></DIV>Phil Harman wrote:
<BLOCKQUOTE cite=mid:CCF9CE6D146843FD9F93C7C9E020E83E@phil type="cite">
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<DIV><FONT face=Arial color=#000000 size=2>Hi Alberto, </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial color=#000000 size=2>Let me see if I can shed some
light on what is happening. </FONT></DIV></BLOCKQUOTE>
<<< snip >>><BR>
<BLOCKQUOTE cite=mid:CCF9CE6D146843FD9F93C7C9E020E83E@phil type="cite">
<DIV><FONT face=Arial color=#000000 size=2>No mystery - just simple
electronics!</FONT></DIV></BLOCKQUOTE>Hi Phil,<BR><BR> many thanks for
your detailed and informative reply. My plans contemplate the use of a
recently<BR>acquired Rubidium unit to generate the 10 MHz reference
signal.<BR><BR>Judging from your explanation, then there must be something
broken with my Penelope card....<BR>If I select Penelope as source of the 10
MHz signal, apparently there is no lock of the PLL, <BR>and the received
signal has a warbled tone, as I demonstrated in an MP3 file a few days
ago.<BR>This happens no matter what the source of the 122.88 MHz is, Mercury
or Penelope....<BR><BR>73 Alberto I2PHD<BR><BR>
<P>
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