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<DIV><FONT face=Arial size=2>Hi Rick,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Good to hear your Mercury boards are working. For
the T/R relay there is an open drain FET on the Penelope board connected to J6
pin 13. This will pull low whenever Penelope transmits. A 12 v relay with
a snubber diode across it and you are set.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>73's Phil....VK6APH</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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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=w2gps@cnssys.com href="mailto:w2gps@cnssys.com">Rick Hambly
(W2GPS)</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> Sunday, December 28, 2008 11:55
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [hpsdr] Mercury works!</DIV>
<DIV><BR></DIV>***** High Performance Software Defined Radio Discussion List
*****<BR><BR>
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<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">All,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">I have two Atlas/Ozy/Mercury/Penelope stacks. For what
it’s worth, I have Mercury in the first slot (nearest the power connector),
Penelope in slot three and Ozy in slot five. A pair of powered speakers is
plugged into Mercury’s J10 (Line Out) jack. For testing I used a very
expensive Agilent lab power supply but then I switched to a very low cost
linear supply for operation and things worked just
fine.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">The first goal was to get both Mercury boards working,
which I did. The next task was to get the Mercury V2 code loaded and tested.
Thanks to Phil’s Dec 27<SUP>th</SUP> teamspeak tutorial and my Altera USB
Blaster I have that working, too. Phil’s tutorial saved me from making a
stupid mistake and so saved me valuable time. The result is that both Mercury
boards are working very well and they are enjoyable to listen to on all
bands.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">One of my Penelope boards is working well. The other
is not. I had a failure of U6, the OPA2674IC/D transmit output amplifier. The
replacement part is on order so this should me only a minor inconvenience.
Next I need to rig up a T/R switch so I can make some
contacts.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">So for those of you having difficulties rest assured
that things can work and work well. Press on.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">Rick<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt">W2GPS<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV></DIV>
<P>
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